[libcxx-commits] [libcxx] [libc++][modules] Fix missing and incorrect includes (PR #108850)
Louis Dionne via libcxx-commits
libcxx-commits at lists.llvm.org
Mon Sep 16 09:08:20 PDT 2024
https://github.com/ldionne created https://github.com/llvm/llvm-project/pull/108850
This patch adds a large number of missing includes in the libc++ headers and the test suite. Those were found as part of the effort to move towards a mostly monolithic top-level std module.
>From 054e529cbd9205c352c274104ab681494c5004dd Mon Sep 17 00:00:00 2001
From: Louis Dionne <ldionne.2 at gmail.com>
Date: Wed, 11 Sep 2024 10:25:07 -0400
Subject: [PATCH] [libc++][modules] Fix missing and incorrect includes
This patch adds a large number of missing includes in the libc++
headers and the test suite. Those were found as part of the
effort to move towards a mostly monolithic top-level std module.
---
libcxx/include/__algorithm/copy.h | 2 +
libcxx/include/__algorithm/copy_backward.h | 2 +
libcxx/include/__algorithm/count.h | 3 +-
libcxx/include/__algorithm/equal.h | 2 +-
libcxx/include/__algorithm/equal_range.h | 2 +-
libcxx/include/__algorithm/find.h | 4 +-
libcxx/include/__algorithm/find_end.h | 2 +-
libcxx/include/__algorithm/fold.h | 1 +
libcxx/include/__algorithm/includes.h | 2 +-
libcxx/include/__algorithm/inplace_merge.h | 1 +
libcxx/include/__algorithm/is_permutation.h | 4 +-
.../__algorithm/lexicographical_compare.h | 1 +
libcxx/include/__algorithm/lower_bound.h | 2 +-
libcxx/include/__algorithm/make_projected.h | 1 +
libcxx/include/__algorithm/min_element.h | 2 +-
libcxx/include/__algorithm/minmax_element.h | 2 +-
libcxx/include/__algorithm/mismatch.h | 2 +
libcxx/include/__algorithm/move.h | 2 +
libcxx/include/__algorithm/move_backward.h | 2 +
.../include/__algorithm/partial_sort_copy.h | 2 +-
libcxx/include/__algorithm/partition.h | 1 +
libcxx/include/__algorithm/ranges_ends_with.h | 1 +
libcxx/include/__algorithm/ranges_find_last.h | 1 +
libcxx/include/__algorithm/ranges_generate.h | 2 +-
.../include/__algorithm/ranges_generate_n.h | 2 +-
libcxx/include/__algorithm/ranges_partition.h | 1 +
libcxx/include/__algorithm/search.h | 2 +-
libcxx/include/__algorithm/search_n.h | 3 +-
libcxx/include/__algorithm/set_difference.h | 1 -
libcxx/include/__algorithm/set_intersection.h | 1 +
libcxx/include/__algorithm/sort.h | 3 +
libcxx/include/__algorithm/stable_partition.h | 1 +
.../uniform_random_bit_generator_adaptor.h | 2 +-
libcxx/include/__algorithm/upper_bound.h | 1 +
libcxx/include/__atomic/atomic_ref.h | 1 +
libcxx/include/__chrono/day.h | 2 +-
libcxx/include/__chrono/formatter.h | 1 +
libcxx/include/__chrono/month.h | 2 +-
libcxx/include/__chrono/monthday.h | 2 +-
libcxx/include/__chrono/ostream.h | 1 +
libcxx/include/__chrono/tzdb.h | 3 +
libcxx/include/__chrono/tzdb_list.h | 1 +
libcxx/include/__chrono/year.h | 2 +-
libcxx/include/__chrono/year_month.h | 2 +-
libcxx/include/__chrono/year_month_day.h | 2 +-
libcxx/include/__chrono/zoned_time.h | 4 +-
libcxx/include/__concepts/predicate.h | 2 +-
libcxx/include/__expected/expected.h | 2 +
libcxx/include/__format/format_arg_store.h | 1 +
libcxx/include/__format/write_escaped.h | 1 +
libcxx/include/__functional/bind.h | 2 +-
libcxx/include/__functional/hash.h | 1 +
libcxx/include/__functional/invoke.h | 1 +
libcxx/include/__functional/mem_fn.h | 2 +-
libcxx/include/__functional/perfect_forward.h | 1 +
.../include/__functional/reference_wrapper.h | 2 +-
.../include/__functional/weak_result_type.h | 2 +-
libcxx/include/__hash_table | 3 +-
libcxx/include/__iterator/common_iterator.h | 1 +
libcxx/include/__iterator/concepts.h | 2 +-
libcxx/include/__iterator/counted_iterator.h | 2 +-
.../include/__iterator/ostreambuf_iterator.h | 5 +-
libcxx/include/__memory/allocator_traits.h | 1 +
libcxx/include/__memory/inout_ptr.h | 1 +
libcxx/include/__memory/out_ptr.h | 1 +
libcxx/include/__memory/pointer_traits.h | 1 +
.../__random/uniform_random_bit_generator.h | 2 +-
libcxx/include/__ranges/elements_view.h | 1 +
libcxx/include/__ranges/range_adaptor.h | 2 +
libcxx/include/__ranges/transform_view.h | 1 +
libcxx/include/__string/char_traits.h | 1 +
libcxx/include/__thread/jthread.h | 4 +-
libcxx/include/__thread/this_thread.h | 1 +
libcxx/include/__thread/thread.h | 1 +
libcxx/include/__tree | 3 +-
libcxx/include/__type_traits/is_swappable.h | 1 +
libcxx/include/algorithm | 9 +++
libcxx/include/array | 1 +
libcxx/include/bitset | 1 +
libcxx/include/deque | 13 +++++
libcxx/include/experimental/iterator | 2 +
libcxx/include/fstream | 6 +-
libcxx/include/future | 5 ++
libcxx/include/iomanip | 2 +
libcxx/include/map | 7 +++
libcxx/include/optional | 3 +
libcxx/include/set | 9 +++
libcxx/include/sstream | 2 +
libcxx/include/tuple | 5 +-
libcxx/include/unordered_map | 7 +++
libcxx/include/unordered_set | 9 +++
libcxx/include/variant | 8 ++-
libcxx/include/vector | 14 +++++
.../make.heap/complexity.pass.cpp | 1 +
...obust_against_copying_comparators.pass.cpp | 1 +
...obust_against_copying_projections.pass.cpp | 1 +
...obust_against_copying_comparators.pass.cpp | 1 +
...t_cpp20_hostile_iterators.compile.pass.cpp | 1 +
.../vector.bool/abi.compile.pass.cpp | 1 +
.../sequences/vector/abi.compile.pass.cpp | 1 +
.../containers/unord/next_pow2.pass.cpp | 3 +-
.../containers/unord/next_prime.pass.cpp | 1 +
.../depr.adaptors.cxx1z.pass.cpp | 1 +
.../diagnostics/ranges.nodiscard.verify.cpp | 1 +
.../cpp20_iter_concepts.pass.cpp | 5 +-
.../has_arrow.compile.pass.cpp | 1 +
.../basic.string/alignof.compile.pass.cpp | 1 +
.../basic.string/sizeof.compile.pass.cpp | 1 +
.../test/libcxx/transitive_includes/cxx03.csv | 25 ++++++++
.../test/libcxx/transitive_includes/cxx11.csv | 25 ++++++++
.../test/libcxx/transitive_includes/cxx14.csv | 26 +++++++++
.../test/libcxx/transitive_includes/cxx17.csv | 24 ++++++++
.../test/libcxx/transitive_includes/cxx20.csv | 24 ++++++++
.../test/libcxx/transitive_includes/cxx23.csv | 19 ++++++
.../test/libcxx/transitive_includes/cxx26.csv | 20 ++++++-
.../format.arg/arg_t.compile.pass.cpp | 1 +
.../format.string.std/escaped_output.pass.cpp | 5 +-
.../func.require/bullet_1_2_3.pass.cpp | 3 +-
.../func.require/bullet_4_5_6.pass.cpp | 3 +-
.../function_type_default_deleter.verify.cpp | 1 +
.../libcxx/utilities/meta/meta_base.pass.cpp | 1 +
.../__murmur2_or_cityhash.abi-v1.pass.cpp | 1 +
.../random_shuffle_urng.pass.cpp | 3 +-
.../mismatch/mismatch.pass.cpp | 2 +
.../sort.heap/complexity.pass.cpp | 1 +
.../sort.heap/ranges_sort_heap.pass.cpp | 2 +
.../alg.merge/inplace_merge_comp.pass.cpp | 3 +-
.../alg.sorting/alg.merge/pstl.merge.pass.cpp | 1 +
.../alg.sort/sort/pstl.sort.pass.cpp | 1 +
.../alg.sort/stable.sort/stable_sort.pass.cpp | 1 +
...es_robust_against_omitting_invoke.pass.cpp | 2 +
...nst_proxy_iterators_lifetime_bugs.pass.cpp | 2 +
...robust_re_difference_type.compile.pass.cpp | 1 +
.../atomics.ref/bitwise_and_assign.pass.cpp | 1 +
.../atomics.ref/bitwise_or_assign.pass.cpp | 1 +
.../atomics.ref/bitwise_xor_assign.pass.cpp | 1 +
.../atomics/atomics.ref/fetch_add.pass.cpp | 1 +
.../atomics/atomics.ref/fetch_and.pass.cpp | 1 +
.../std/atomics/atomics.ref/fetch_or.pass.cpp | 3 +-
.../atomics/atomics.ref/fetch_sub.pass.cpp | 1 +
.../atomics/atomics.ref/fetch_xor.pass.cpp | 3 +-
.../atomics.ref/increment_decrement.pass.cpp | 1 +
.../atomics.ref/member_types.compile.pass.cpp | 58 ++++++++++---------
.../operator_minus_equals.pass.cpp | 1 +
.../atomics.ref/operator_plus_equals.pass.cpp | 3 +-
.../atomics.types.float/assign.pass.cpp | 1 +
.../atomics.types.float/exchange.pass.cpp | 1 +
.../atomics.types.float/fetch_add.pass.cpp | 1 +
.../atomics.types.float/fetch_sub.pass.cpp | 1 +
.../atomics.types.float/load.pass.cpp | 3 +-
.../operator.float.pass.cpp | 1 +
.../operator.minus_equals.pass.cpp | 1 +
.../operator.plus_equals.pass.cpp | 1 +
.../atomics.types.float/wait.pass.cpp | 1 +
.../cstdint_typedefs.pass.cpp | 3 +-
.../integral_typedefs.pass.cpp | 1 +
.../stdatomic.h.syn/types.compile.pass.cpp | 2 +
libcxx/test/std/atomics/types.pass.cpp | 1 +
.../map.modifiers/insert_or_assign.pass.cpp | 1 +
.../map/map.modifiers/try.emplace.pass.cpp | 1 +
.../multiset/multiset.cons/copy.pass.cpp | 1 +
.../multiset.cons/copy_alloc.pass.cpp | 1 +
.../multiset.cons/copy_assign.pass.cpp | 1 +
.../initializer_list_compare.pass.cpp | 2 +
.../initializer_list_compare_alloc.pass.cpp | 2 +
.../associative/set/set.cons/copy.pass.cpp | 1 +
.../set/set.cons/copy_alloc.pass.cpp | 1 +
.../set/set.cons/copy_assign.pass.cpp | 1 +
.../initializer_list_compare.pass.cpp | 2 +
.../initializer_list_compare_alloc.pass.cpp | 2 +
.../priqueue.cons/dtor_noexcept.pass.cpp | 1 +
.../queue/queue.cons/dtor_noexcept.pass.cpp | 1 +
.../stack/stack.cons/dtor_noexcept.pass.cpp | 1 +
.../mdspan/layout_left/properties.pass.cpp | 1 +
.../mdspan/layout_right/properties.pass.cpp | 1 +
.../mdspan/layout_stride/deduction.pass.cpp | 1 +
.../std/depr/depr.c.headers/math_h.pass.cpp | 2 +-
.../std/depr/depr.c.headers/stdlib_h.pass.cpp | 3 +-
.../syserr/syserr.hash/error_code.pass.cpp | 13 ++---
.../syserr.hash/error_condition.pass.cpp | 13 ++---
.../memory/memory.observer.ptr/hash.pass.cpp | 1 +
.../reference_arith_operators.pass.cpp | 4 +-
.../reference_bitwise_operators.pass.cpp | 4 +-
.../move_assign.pass.cpp | 4 +-
.../move_assign_convertible.pass.cpp | 4 +-
...ssign_convertible_propagate_const.pass.cpp | 4 +-
...ertible_propagate_const.move_ctor.pass.cpp | 4 +-
.../propagate_const.ctors/move_ctor.pass.cpp | 4 +-
.../propagate_const.nonmembers/hash.pass.cpp | 5 +-
.../equal_to.pass.cpp | 4 +-
.../greater.pass.cpp | 4 +-
.../greater_equal.pass.cpp | 4 +-
.../less.pass.cpp | 4 +-
.../less_equal.pass.cpp | 4 +-
.../not_equal_to.pass.cpp | 4 +-
.../propagate_const.relops/equal.pass.cpp | 4 +-
.../propagate_const.relops/not_equal.pass.cpp | 4 +-
.../iterator.basic/iterator.pass.cpp | 1 +
.../iterator.traits/const_pointer.pass.cpp | 1 +
.../const_volatile_pointer.pass.cpp | 1 +
.../iterator.traits/pointer.pass.cpp | 1 +
.../iterator.traits/volatile_pointer.pass.cpp | 1 +
.../incrementable_traits.compile.pass.cpp | 1 +
.../sentinel_for.compile.pass.cpp | 1 +
.../reverse.iter.cmp/sfinae.compile.pass.cpp | 1 +
.../three_way_comparable.compile.pass.cpp | 1 +
...three_way_comparable_with.compile.pass.cpp | 1 +
.../coroutine.handle.con/assign.pass.cpp | 3 +-
.../coroutine.handle.con/construct.pass.cpp | 3 +-
.../destroying_delete_t_declaration.pass.cpp | 2 +
.../support.runtime/cstdlib.pass.cpp | 3 +-
.../support.types/nullptr_t.pass.cpp | 3 +-
.../niebloid.compile.pass.cpp | 2 +
.../conversions.string/ctor_codecvt.pass.cpp | 3 +-
.../test/std/numerics/c.math/cmath.pass.cpp | 5 +-
.../rand.adapt.disc/result_type.pass.cpp | 1 +
.../rand.dist.bern.bernoulli/eval.pass.cpp | 5 +-
.../eval_param.pass.cpp | 5 +-
.../rand.dist.bern.bin/eval.PR44847.pass.cpp | 5 +-
.../rand.dist.bern.bin/eval.pass.cpp | 1 +
.../rand.dist.bern.bin/eval_param.pass.cpp | 3 +-
.../rand.dist.bern.geo/eval.pass.cpp | 3 +-
.../rand.dist.bern.geo/eval_param.pass.cpp | 3 +-
.../rand.dist.bern.negbin/eval.pass.cpp | 3 +-
.../rand.dist.bern.negbin/eval_param.pass.cpp | 3 +-
.../rand.dist.norm.chisq/eval.pass.cpp | 5 +-
.../rand.dist.norm.chisq/eval_param.pass.cpp | 5 +-
.../rand.dist.norm.lognormal/eval.pass.cpp | 3 +-
.../eval_param.pass.cpp | 3 +-
.../rand.dist.norm.normal/eval.pass.cpp | 5 +-
.../rand.dist.norm.normal/eval_param.pass.cpp | 5 +-
.../rand.dist.norm.t/eval.pass.cpp | 3 +-
.../rand.dist.norm.t/eval_param.pass.cpp | 3 +-
.../rand.dist.pois.exp/eval.pass.cpp | 5 +-
.../rand.dist.pois.exp/eval_param.pass.cpp | 5 +-
.../rand.dist.pois.extreme/eval.pass.cpp | 3 +-
.../eval_param.pass.cpp | 3 +-
.../rand.dist.pois.gamma/eval.pass.cpp | 3 +-
.../rand.dist.pois.gamma/eval_param.pass.cpp | 3 +-
.../eval_param.pass.cpp | 3 +-
.../rand.dist.pois.weibull/eval.pass.cpp | 5 +-
.../eval_param.pass.cpp | 5 +-
.../rand.dist.samp.pconst/eval.pass.cpp | 7 ++-
.../rand.dist.samp.pconst/eval_param.pass.cpp | 7 ++-
.../rand.dist.samp.plinear/eval.pass.cpp | 7 ++-
.../eval_param.pass.cpp | 7 ++-
.../rand.dist.uni.int/eval.pass.cpp | 3 +-
.../rand.dist.uni.int/eval_param.pass.cpp | 5 +-
.../rand.dist.uni.real/eval.pass.cpp | 5 +-
.../rand.dist.uni.real/eval_param.pass.cpp | 5 +-
.../rand.eng/rand.eng.lcong/copy.pass.cpp | 1 +
.../rand.eng/rand.eng.lcong/default.pass.cpp | 1 +
.../rand.eng/rand.eng.lcong/values.pass.cpp | 3 +-
.../rand.eng.mers/result_type.pass.cpp | 1 +
.../rand.eng.sub/result_type.pass.cpp | 1 +
.../generate.mandates.verify.cpp | 1 +
.../rand.util.seedseq/types.pass.cpp | 1 +
.../wait_for_token_pred.pass.cpp | 1 +
.../wait_token_pred.pass.cpp | 1 +
.../wait_until_token_pred.pass.cpp | 1 +
.../thread.jthread/cons.func.token.pass.cpp | 1 +
.../stopcallback/dtor.pass.cpp | 1 +
.../time.cal.day.members/decrement.pass.cpp | 3 +-
.../time.cal.day.members/increment.pass.cpp | 3 +-
.../time.cal.day.members/ok.pass.cpp | 3 +-
.../plus_minus_equal.pass.cpp | 3 +-
.../time.cal.day.nonmembers/minus.pass.cpp | 3 +-
.../time.cal.day.nonmembers/plus.pass.cpp | 3 +-
.../time.cal.md.members/day.pass.cpp | 3 +-
.../time.cal.md.members/month.pass.cpp | 3 +-
.../time.cal.md.members/ok.pass.cpp | 3 +-
.../time.cal/time.cal.mdlast/month.pass.cpp | 3 +-
.../time/time.cal/time.cal.mdlast/ok.pass.cpp | 3 +-
.../time.cal.month.members/decrement.pass.cpp | 3 +-
.../time.cal.month.members/increment.pass.cpp | 3 +-
.../time.cal.month.members/ok.pass.cpp | 3 +-
.../plus_minus_equal.pass.cpp | 3 +-
.../time.cal.month.nonmembers/minus.pass.cpp | 3 +-
.../time.cal.month.nonmembers/plus.pass.cpp | 3 +-
.../time.cal.mwd.members/month.pass.cpp | 3 +-
.../time.cal.mwd.members/ok.pass.cpp | 3 +-
.../weekday_indexed.pass.cpp | 3 +-
.../time.cal.mwdlast.members/month.pass.cpp | 3 +-
.../time.cal.mwdlast.members/ok.pass.cpp | 3 +-
.../weekday_last.pass.cpp | 3 +-
.../time.cal.wdidx.members/index.pass.cpp | 3 +-
.../time.cal.wdidx.members/ok.pass.cpp | 3 +-
.../time.cal.wdidx.members/weekday.pass.cpp | 3 +-
.../time.cal.wdlast.members/ok.pass.cpp | 3 +-
.../time.cal.wdlast.members/weekday.pass.cpp | 3 +-
.../c_encoding.pass.cpp | 3 +-
.../ctor.local_days.pass.cpp | 3 +-
.../ctor.sys_days.pass.cpp | 3 +-
.../decrement.pass.cpp | 3 +-
.../increment.pass.cpp | 3 +-
.../iso_encoding.pass.cpp | 3 +-
.../time.cal.weekday.members/ok.pass.cpp | 3 +-
.../operator[].pass.cpp | 3 +-
.../plus_minus_equal.pass.cpp | 3 +-
.../minus.pass.cpp | 3 +-
.../time.cal.weekday.nonmembers/plus.pass.cpp | 3 +-
.../time.cal.year.members/decrement.pass.cpp | 3 +-
.../time.cal.year.members/increment.pass.cpp | 3 +-
.../time.cal.year.members/ok.pass.cpp | 3 +-
.../time.cal.year.members/plus_minus.pass.cpp | 3 +-
.../plus_minus_equal.pass.cpp | 3 +-
.../time.cal.year.nonmembers/minus.pass.cpp | 3 +-
.../time.cal.year.nonmembers/plus.pass.cpp | 3 +-
.../time.cal.ym.members/month.pass.cpp | 3 +-
.../time.cal.ym.members/ok.pass.cpp | 3 +-
.../plus_minus_equal_month.pass.cpp | 3 +-
.../plus_minus_equal_year.pass.cpp | 3 +-
.../time.cal.ym.members/year.pass.cpp | 3 +-
.../time.cal.ym.nonmembers/minus.pass.cpp | 3 +-
.../time.cal.ym.nonmembers/plus.pass.cpp | 3 +-
.../ctor.local_days.pass.cpp | 3 +-
.../ctor.sys_days.pass.cpp | 3 +-
.../ctor.year_month_day_last.pass.cpp | 3 +-
.../time.cal.ymd.members/day.pass.cpp | 3 +-
.../time.cal.ymd.members/month.pass.cpp | 3 +-
.../time.cal.ymd.members/ok.pass.cpp | 3 +-
.../op.local_days.pass.cpp | 3 +-
.../time.cal.ymd.members/op.sys_days.pass.cpp | 3 +-
.../plus_minus_equal_month.pass.cpp | 3 +-
.../plus_minus_equal_year.pass.cpp | 3 +-
.../time.cal.ymd.members/year.pass.cpp | 3 +-
.../time.cal.ymd.nonmembers/minus.pass.cpp | 3 +-
.../time.cal.ymd.nonmembers/plus.pass.cpp | 3 +-
.../time.cal.ymdlast.members/day.pass.cpp | 3 +-
.../time.cal.ymdlast.members/month.pass.cpp | 3 +-
.../month_day_last.pass.cpp | 3 +-
.../time.cal.ymdlast.members/ok.pass.cpp | 3 +-
.../op_local_days.pass.cpp | 3 +-
.../op_sys_days.pass.cpp | 3 +-
.../plus_minus_equal_month.pass.cpp | 3 +-
.../plus_minus_equal_year.pass.cpp | 3 +-
.../time.cal.ymdlast.members/year.pass.cpp | 3 +-
.../minus.pass.cpp | 3 +-
.../time.cal.ymdlast.nonmembers/plus.pass.cpp | 3 +-
.../ctor.local_days.pass.cpp | 3 +-
.../ctor.sys_days.pass.cpp | 3 +-
.../time.cal.ymwd.members/index.pass.cpp | 3 +-
.../time.cal.ymwd.members/month.pass.cpp | 3 +-
.../time.cal.ymwd.members/ok.pass.cpp | 3 +-
.../op.local_days.pass.cpp | 3 +-
.../op.sys_days.pass.cpp | 3 +-
.../plus_minus_equal_month.pass.cpp | 3 +-
.../plus_minus_equal_year.pass.cpp | 3 +-
.../time.cal.ymwd.members/weekday.pass.cpp | 3 +-
.../weekday_indexed.pass.cpp | 3 +-
.../time.cal.ymwd.members/year.pass.cpp | 3 +-
.../time.cal.ymwd.nonmembers/minus.pass.cpp | 3 +-
.../time.cal.ymwd.nonmembers/plus.pass.cpp | 3 +-
.../time.cal.ymwdlast.members/month.pass.cpp | 3 +-
.../time.cal.ymwdlast.members/ok.pass.cpp | 3 +-
.../op_local_days.pass.cpp | 3 +-
.../op_sys_days.pass.cpp | 3 +-
.../plus_minus_equal_month.pass.cpp | 3 +-
.../plus_minus_equal_year.pass.cpp | 3 +-
.../weekday.pass.cpp | 3 +-
.../time.cal.ymwdlast.members/year.pass.cpp | 3 +-
.../minus.pass.cpp | 3 +-
.../plus.pass.cpp | 3 +-
.../time.zone.db.access/current_zone.pass.cpp | 5 +-
.../remote_version.pass.cpp | 2 +-
.../types.pass.cpp | 1 +
.../time.zone.leap/members/date.pass.cpp | 1 +
.../const_time_zone_default_zone.pass.cpp | 1 +
.../const_time_zone_locate_zone.pass.cpp | 1 +
.../utilities/charconv/charconv.msvc/test.hpp | 2 +-
.../charconv.syn/from_chars_result.pass.cpp | 1 +
.../charconv.syn/to_chars_result.pass.cpp | 1 +
.../formatter.pointer.pass.cpp | 3 +-
.../formatter.signed_integral.pass.cpp | 1 +
.../escaped_output.unicode.pass.cpp | 1 +
.../format_to.locale.pass.cpp | 1 +
.../format_to_n.locale.pass.cpp | 1 +
.../formatted_size.locale.pass.cpp | 1 +
.../is_bind_expression.pass.cpp | 2 +
.../func.bind.isplace/is_placeholder.pass.cpp | 2 +
.../function.objects/unord.hash/enum.pass.cpp | 8 ++-
.../unord.hash/integral.pass.cpp | 3 +-
.../difference_type.pass.cpp | 1 +
.../allocator.traits.types/size_type.pass.cpp | 1 +
.../difference_type.compile.pass.cpp | 1 +
.../util.smartptr.shared/types.pass.cpp | 1 +
.../reset_pointer.pass.cpp | 1 +
.../meta.trans.other/underlying_type.pass.cpp | 1 +
.../meta.unary.comp/is_bounded_array.pass.cpp | 1 +
.../is_unbounded_array.pass.cpp | 1 +
.../meta.unary.prop/is_signed.pass.cpp | 2 +
.../meta.unary.prop/is_unsigned.pass.cpp | 2 +
.../bitset.cons/char_ptr_ctor.pass.cpp | 3 +-
.../tuple.apply/make_from_tuple.pass.cpp | 13 +++--
.../default_type.compile.pass.cpp | 1 +
.../special_member_generation_test.pass.cpp | 1 +
.../cmp_greater_equal.pass.cpp | 3 +-
libcxx/test/support/format.functions.common.h | 3 +-
libcxx/test/support/hexfloat.h | 3 +-
libcxx/test/support/operator_hijacker.h | 3 +-
.../c1xx_broken_za_ctor_check.pass.cpp | 1 +
libcxx/test/support/test_convertible.h | 2 +-
402 files changed, 950 insertions(+), 299 deletions(-)
diff --git a/libcxx/include/__algorithm/copy.h b/libcxx/include/__algorithm/copy.h
index 0890b895f54092..7ae47514d6d27f 100644
--- a/libcxx/include/__algorithm/copy.h
+++ b/libcxx/include/__algorithm/copy.h
@@ -14,8 +14,10 @@
#include <__algorithm/iterator_operations.h>
#include <__algorithm/min.h>
#include <__config>
+#include <__iterator/iterator_traits.h>
#include <__iterator/segmented_iterator.h>
#include <__type_traits/common_type.h>
+#include <__type_traits/enable_if.h>
#include <__utility/move.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/copy_backward.h b/libcxx/include/__algorithm/copy_backward.h
index 73dc846a975a44..48a768f577f553 100644
--- a/libcxx/include/__algorithm/copy_backward.h
+++ b/libcxx/include/__algorithm/copy_backward.h
@@ -13,8 +13,10 @@
#include <__algorithm/iterator_operations.h>
#include <__algorithm/min.h>
#include <__config>
+#include <__iterator/iterator_traits.h>
#include <__iterator/segmented_iterator.h>
#include <__type_traits/common_type.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/is_constructible.h>
#include <__utility/move.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/count.h b/libcxx/include/__algorithm/count.h
index b3489a48c1f160..6910b4f43e9934 100644
--- a/libcxx/include/__algorithm/count.h
+++ b/libcxx/include/__algorithm/count.h
@@ -16,9 +16,10 @@
#include <__bit/popcount.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__fwd/bit_reference.h>
#include <__iterator/iterator_traits.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__algorithm/equal.h b/libcxx/include/__algorithm/equal.h
index 23ff0641241949..cd8b0673e7a430 100644
--- a/libcxx/include/__algorithm/equal.h
+++ b/libcxx/include/__algorithm/equal.h
@@ -14,12 +14,12 @@
#include <__algorithm/unwrap_iter.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
#include <__string/constexpr_c_functions.h>
#include <__type_traits/desugars_to.h>
#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_constant_evaluated.h>
#include <__type_traits/is_equality_comparable.h>
#include <__type_traits/is_volatile.h>
diff --git a/libcxx/include/__algorithm/equal_range.h b/libcxx/include/__algorithm/equal_range.h
index 28c37cdb24b5c9..4e74ad20aa412d 100644
--- a/libcxx/include/__algorithm/equal_range.h
+++ b/libcxx/include/__algorithm/equal_range.h
@@ -17,11 +17,11 @@
#include <__algorithm/upper_bound.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/advance.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
#include <__iterator/next.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__type_traits/is_constructible.h>
#include <__utility/move.h>
diff --git a/libcxx/include/__algorithm/find.h b/libcxx/include/__algorithm/find.h
index 3ab4ab8064183a..6f23ec3f6fc69d 100644
--- a/libcxx/include/__algorithm/find.h
+++ b/libcxx/include/__algorithm/find.h
@@ -17,10 +17,12 @@
#include <__bit/invert_if.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__fwd/bit_reference.h>
#include <__iterator/segmented_iterator.h>
#include <__string/constexpr_c_functions.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
+#include <__type_traits/is_equality_comparable.h>
#include <__type_traits/is_integral.h>
#include <__type_traits/is_same.h>
#include <__type_traits/is_signed.h>
diff --git a/libcxx/include/__algorithm/find_end.h b/libcxx/include/__algorithm/find_end.h
index 68a9da75ed8642..08d1a295f8e5c0 100644
--- a/libcxx/include/__algorithm/find_end.h
+++ b/libcxx/include/__algorithm/find_end.h
@@ -15,11 +15,11 @@
#include <__algorithm/search.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/advance.h>
#include <__iterator/iterator_traits.h>
#include <__iterator/next.h>
#include <__iterator/reverse_iterator.h>
+#include <__type_traits/invoke.h>
#include <__utility/pair.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__algorithm/fold.h b/libcxx/include/__algorithm/fold.h
index 255658f5232499..1bcb3be9aadabe 100644
--- a/libcxx/include/__algorithm/fold.h
+++ b/libcxx/include/__algorithm/fold.h
@@ -11,6 +11,7 @@
#define _LIBCPP___ALGORITHM_FOLD_H
#include <__concepts/assignable.h>
+#include <__concepts/constructible.h>
#include <__concepts/convertible_to.h>
#include <__concepts/invocable.h>
#include <__concepts/movable.h>
diff --git a/libcxx/include/__algorithm/includes.h b/libcxx/include/__algorithm/includes.h
index 47b19d408d3a8e..a86102fc6d4a57 100644
--- a/libcxx/include/__algorithm/includes.h
+++ b/libcxx/include/__algorithm/includes.h
@@ -13,8 +13,8 @@
#include <__algorithm/comp_ref_type.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/iterator_traits.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__utility/move.h>
diff --git a/libcxx/include/__algorithm/inplace_merge.h b/libcxx/include/__algorithm/inplace_merge.h
index 2133f440d2fea6..62a8bc53e23f3c 100644
--- a/libcxx/include/__algorithm/inplace_merge.h
+++ b/libcxx/include/__algorithm/inplace_merge.h
@@ -26,6 +26,7 @@
#include <__memory/destruct_n.h>
#include <__memory/unique_ptr.h>
#include <__memory/unique_temporary_buffer.h>
+#include <__utility/move.h>
#include <__utility/pair.h>
#include <new>
diff --git a/libcxx/include/__algorithm/is_permutation.h b/libcxx/include/__algorithm/is_permutation.h
index b7949a5628a388..8753e9fc13f2db 100644
--- a/libcxx/include/__algorithm/is_permutation.h
+++ b/libcxx/include/__algorithm/is_permutation.h
@@ -14,12 +14,14 @@
#include <__algorithm/iterator_operations.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/concepts.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
#include <__iterator/next.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
+#include <__type_traits/is_same.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__algorithm/lexicographical_compare.h b/libcxx/include/__algorithm/lexicographical_compare.h
index 8ea7c177b76033..1de3ca13e1b45c 100644
--- a/libcxx/include/__algorithm/lexicographical_compare.h
+++ b/libcxx/include/__algorithm/lexicographical_compare.h
@@ -19,6 +19,7 @@
#include <__iterator/iterator_traits.h>
#include <__string/constexpr_c_functions.h>
#include <__type_traits/desugars_to.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/invoke.h>
#include <__type_traits/is_equality_comparable.h>
#include <__type_traits/is_integral.h>
diff --git a/libcxx/include/__algorithm/lower_bound.h b/libcxx/include/__algorithm/lower_bound.h
index 54a64beff97a63..2144ba962966ee 100644
--- a/libcxx/include/__algorithm/lower_bound.h
+++ b/libcxx/include/__algorithm/lower_bound.h
@@ -14,10 +14,10 @@
#include <__algorithm/iterator_operations.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/advance.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__type_traits/remove_reference.h>
diff --git a/libcxx/include/__algorithm/make_projected.h b/libcxx/include/__algorithm/make_projected.h
index 5245e523f3df21..22cceb4cb2fb85 100644
--- a/libcxx/include/__algorithm/make_projected.h
+++ b/libcxx/include/__algorithm/make_projected.h
@@ -16,6 +16,7 @@
#include <__type_traits/decay.h>
#include <__type_traits/enable_if.h>
#include <__type_traits/integral_constant.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_member_pointer.h>
#include <__type_traits/is_same.h>
#include <__utility/declval.h>
diff --git a/libcxx/include/__algorithm/min_element.h b/libcxx/include/__algorithm/min_element.h
index f40b24a0e85a8e..db996365bf1de1 100644
--- a/libcxx/include/__algorithm/min_element.h
+++ b/libcxx/include/__algorithm/min_element.h
@@ -13,8 +13,8 @@
#include <__algorithm/comp_ref_type.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/iterator_traits.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__utility/move.h>
diff --git a/libcxx/include/__algorithm/minmax_element.h b/libcxx/include/__algorithm/minmax_element.h
index 47e3a68edf2989..dc0c3a818cd579 100644
--- a/libcxx/include/__algorithm/minmax_element.h
+++ b/libcxx/include/__algorithm/minmax_element.h
@@ -12,8 +12,8 @@
#include <__algorithm/comp.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/iterator_traits.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/mismatch.h b/libcxx/include/__algorithm/mismatch.h
index 0fae7f6e3fe323..cb83347584b1a5 100644
--- a/libcxx/include/__algorithm/mismatch.h
+++ b/libcxx/include/__algorithm/mismatch.h
@@ -17,7 +17,9 @@
#include <__config>
#include <__functional/identity.h>
#include <__iterator/aliasing_iterator.h>
+#include <__iterator/iterator_traits.h>
#include <__type_traits/desugars_to.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/invoke.h>
#include <__type_traits/is_constant_evaluated.h>
#include <__type_traits/is_equality_comparable.h>
diff --git a/libcxx/include/__algorithm/move.h b/libcxx/include/__algorithm/move.h
index 1716d43e2a613d..005099dcac06e3 100644
--- a/libcxx/include/__algorithm/move.h
+++ b/libcxx/include/__algorithm/move.h
@@ -14,8 +14,10 @@
#include <__algorithm/iterator_operations.h>
#include <__algorithm/min.h>
#include <__config>
+#include <__iterator/iterator_traits.h>
#include <__iterator/segmented_iterator.h>
#include <__type_traits/common_type.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/is_constructible.h>
#include <__utility/move.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/move_backward.h b/libcxx/include/__algorithm/move_backward.h
index 4beb7bdbaac0d0..24a8d9b24527a7 100644
--- a/libcxx/include/__algorithm/move_backward.h
+++ b/libcxx/include/__algorithm/move_backward.h
@@ -13,8 +13,10 @@
#include <__algorithm/iterator_operations.h>
#include <__algorithm/min.h>
#include <__config>
+#include <__iterator/iterator_traits.h>
#include <__iterator/segmented_iterator.h>
#include <__type_traits/common_type.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/is_constructible.h>
#include <__utility/move.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/partial_sort_copy.h b/libcxx/include/__algorithm/partial_sort_copy.h
index 6d44b4f8f928a4..172f53b290d548 100644
--- a/libcxx/include/__algorithm/partial_sort_copy.h
+++ b/libcxx/include/__algorithm/partial_sort_copy.h
@@ -18,8 +18,8 @@
#include <__algorithm/sort_heap.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/iterator_traits.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__utility/move.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/partition.h b/libcxx/include/__algorithm/partition.h
index bd0dccfaf92abe..669aac3b275557 100644
--- a/libcxx/include/__algorithm/partition.h
+++ b/libcxx/include/__algorithm/partition.h
@@ -12,6 +12,7 @@
#include <__algorithm/iterator_operations.h>
#include <__config>
#include <__iterator/iterator_traits.h>
+#include <__type_traits/remove_cvref.h>
#include <__utility/move.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/ranges_ends_with.h b/libcxx/include/__algorithm/ranges_ends_with.h
index df7fad0bfc70bd..3621bda3891236 100644
--- a/libcxx/include/__algorithm/ranges_ends_with.h
+++ b/libcxx/include/__algorithm/ranges_ends_with.h
@@ -22,6 +22,7 @@
#include <__iterator/reverse_iterator.h>
#include <__ranges/access.h>
#include <__ranges/concepts.h>
+#include <__ranges/size.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__algorithm/ranges_find_last.h b/libcxx/include/__algorithm/ranges_find_last.h
index 838dd44e5d1072..e7dae1704c2ea6 100644
--- a/libcxx/include/__algorithm/ranges_find_last.h
+++ b/libcxx/include/__algorithm/ranges_find_last.h
@@ -21,6 +21,7 @@
#include <__ranges/access.h>
#include <__ranges/concepts.h>
#include <__ranges/subrange.h>
+#include <__utility/forward.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__algorithm/ranges_generate.h b/libcxx/include/__algorithm/ranges_generate.h
index b94611d18263a8..04333b358eed26 100644
--- a/libcxx/include/__algorithm/ranges_generate.h
+++ b/libcxx/include/__algorithm/ranges_generate.h
@@ -12,12 +12,12 @@
#include <__concepts/constructible.h>
#include <__concepts/invocable.h>
#include <__config>
-#include <__functional/invoke.h>
#include <__iterator/concepts.h>
#include <__iterator/iterator_traits.h>
#include <__ranges/access.h>
#include <__ranges/concepts.h>
#include <__ranges/dangling.h>
+#include <__type_traits/invoke.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__algorithm/ranges_generate_n.h b/libcxx/include/__algorithm/ranges_generate_n.h
index 702e9a949cb45b..a318994d0eaf8b 100644
--- a/libcxx/include/__algorithm/ranges_generate_n.h
+++ b/libcxx/include/__algorithm/ranges_generate_n.h
@@ -13,12 +13,12 @@
#include <__concepts/invocable.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/concepts.h>
#include <__iterator/incrementable_traits.h>
#include <__iterator/iterator_traits.h>
#include <__ranges/access.h>
#include <__ranges/concepts.h>
+#include <__type_traits/invoke.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__algorithm/ranges_partition.h b/libcxx/include/__algorithm/ranges_partition.h
index 7058cb0c396968..b9cc3c18937091 100644
--- a/libcxx/include/__algorithm/ranges_partition.h
+++ b/libcxx/include/__algorithm/ranges_partition.h
@@ -24,6 +24,7 @@
#include <__ranges/access.h>
#include <__ranges/concepts.h>
#include <__ranges/subrange.h>
+#include <__type_traits/remove_cvref.h>
#include <__utility/forward.h>
#include <__utility/move.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/search.h b/libcxx/include/__algorithm/search.h
index 24dec22df751e3..161fd39d861a63 100644
--- a/libcxx/include/__algorithm/search.h
+++ b/libcxx/include/__algorithm/search.h
@@ -14,11 +14,11 @@
#include <__algorithm/iterator_operations.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/advance.h>
#include <__iterator/concepts.h>
#include <__iterator/iterator_traits.h>
#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/search_n.h b/libcxx/include/__algorithm/search_n.h
index 4019dfb5d8fde5..38474e1b2379dd 100644
--- a/libcxx/include/__algorithm/search_n.h
+++ b/libcxx/include/__algorithm/search_n.h
@@ -14,12 +14,13 @@
#include <__algorithm/iterator_operations.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/advance.h>
#include <__iterator/concepts.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
#include <__ranges/concepts.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__utility/convert_to_integral.h>
#include <__utility/pair.h>
diff --git a/libcxx/include/__algorithm/set_difference.h b/libcxx/include/__algorithm/set_difference.h
index f414bcecb50df1..6230b831aeda21 100644
--- a/libcxx/include/__algorithm/set_difference.h
+++ b/libcxx/include/__algorithm/set_difference.h
@@ -15,7 +15,6 @@
#include <__algorithm/iterator_operations.h>
#include <__config>
#include <__functional/identity.h>
-#include <__functional/invoke.h>
#include <__iterator/iterator_traits.h>
#include <__type_traits/remove_cvref.h>
#include <__utility/move.h>
diff --git a/libcxx/include/__algorithm/set_intersection.h b/libcxx/include/__algorithm/set_intersection.h
index 2335e5087f6f81..6246e24b9ca4e7 100644
--- a/libcxx/include/__algorithm/set_intersection.h
+++ b/libcxx/include/__algorithm/set_intersection.h
@@ -19,6 +19,7 @@
#include <__iterator/next.h>
#include <__type_traits/is_same.h>
#include <__utility/exchange.h>
+#include <__utility/forward.h>
#include <__utility/move.h>
#include <__utility/swap.h>
diff --git a/libcxx/include/__algorithm/sort.h b/libcxx/include/__algorithm/sort.h
index 77ff1533c79492..39868b8b6a30ae 100644
--- a/libcxx/include/__algorithm/sort.h
+++ b/libcxx/include/__algorithm/sort.h
@@ -29,9 +29,12 @@
#include <__type_traits/conditional.h>
#include <__type_traits/desugars_to.h>
#include <__type_traits/disjunction.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/is_arithmetic.h>
#include <__type_traits/is_constant_evaluated.h>
+#include <__type_traits/is_same.h>
#include <__type_traits/is_trivially_copyable.h>
+#include <__type_traits/remove_cvref.h>
#include <__utility/move.h>
#include <__utility/pair.h>
#include <climits>
diff --git a/libcxx/include/__algorithm/stable_partition.h b/libcxx/include/__algorithm/stable_partition.h
index bf86201dbb6a61..5df5e8eaf689ba 100644
--- a/libcxx/include/__algorithm/stable_partition.h
+++ b/libcxx/include/__algorithm/stable_partition.h
@@ -18,6 +18,7 @@
#include <__memory/destruct_n.h>
#include <__memory/unique_ptr.h>
#include <__memory/unique_temporary_buffer.h>
+#include <__type_traits/remove_cvref.h>
#include <__utility/move.h>
#include <__utility/pair.h>
#include <new>
diff --git a/libcxx/include/__algorithm/uniform_random_bit_generator_adaptor.h b/libcxx/include/__algorithm/uniform_random_bit_generator_adaptor.h
index aef0fbfb7c2842..bc7a8925e12879 100644
--- a/libcxx/include/__algorithm/uniform_random_bit_generator_adaptor.h
+++ b/libcxx/include/__algorithm/uniform_random_bit_generator_adaptor.h
@@ -10,7 +10,7 @@
#define _LIBCPP___ALGORITHM_RANGES_UNIFORM_RANDOM_BIT_GENERATOR_ADAPTOR_H
#include <__config>
-#include <__functional/invoke.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/remove_cvref.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__algorithm/upper_bound.h b/libcxx/include/__algorithm/upper_bound.h
index e8be0ef0564886..d77286c9e5af5a 100644
--- a/libcxx/include/__algorithm/upper_bound.h
+++ b/libcxx/include/__algorithm/upper_bound.h
@@ -18,6 +18,7 @@
#include <__iterator/advance.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_callable.h>
#include <__type_traits/is_constructible.h>
#include <__utility/move.h>
diff --git a/libcxx/include/__atomic/atomic_ref.h b/libcxx/include/__atomic/atomic_ref.h
index 92e9247e2e50eb..465cd9a77ea792 100644
--- a/libcxx/include/__atomic/atomic_ref.h
+++ b/libcxx/include/__atomic/atomic_ref.h
@@ -20,6 +20,7 @@
#include <__assert>
#include <__atomic/atomic_sync.h>
#include <__atomic/check_memory_order.h>
+#include <__atomic/memory_order.h>
#include <__atomic/to_gcc_order.h>
#include <__concepts/arithmetic.h>
#include <__concepts/same_as.h>
diff --git a/libcxx/include/__chrono/day.h b/libcxx/include/__chrono/day.h
index 7342084b08c886..f5b14689a78acf 100644
--- a/libcxx/include/__chrono/day.h
+++ b/libcxx/include/__chrono/day.h
@@ -11,8 +11,8 @@
#define _LIBCPP___CHRONO_DAY_H
#include <__chrono/duration.h>
+#include <__compare/ordering.h>
#include <__config>
-#include <compare>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__chrono/formatter.h b/libcxx/include/__chrono/formatter.h
index ff2593f7230292..8389e2cbf9e595 100644
--- a/libcxx/include/__chrono/formatter.h
+++ b/libcxx/include/__chrono/formatter.h
@@ -52,6 +52,7 @@
# include <cmath>
# include <ctime>
# include <limits>
+# include <locale>
# include <sstream>
# include <string_view>
diff --git a/libcxx/include/__chrono/month.h b/libcxx/include/__chrono/month.h
index ce5cc21aab7d1e..77c67d0954efa8 100644
--- a/libcxx/include/__chrono/month.h
+++ b/libcxx/include/__chrono/month.h
@@ -11,8 +11,8 @@
#define _LIBCPP___CHRONO_MONTH_H
#include <__chrono/duration.h>
+#include <__compare/ordering.h>
#include <__config>
-#include <compare>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__chrono/monthday.h b/libcxx/include/__chrono/monthday.h
index a89d16e518618e..57712cf0b65a8a 100644
--- a/libcxx/include/__chrono/monthday.h
+++ b/libcxx/include/__chrono/monthday.h
@@ -13,8 +13,8 @@
#include <__chrono/calendar.h>
#include <__chrono/day.h>
#include <__chrono/month.h>
+#include <__compare/ordering.h>
#include <__config>
-#include <compare>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__chrono/ostream.h b/libcxx/include/__chrono/ostream.h
index 196ebd518541c7..3420fb12bcdb0b 100644
--- a/libcxx/include/__chrono/ostream.h
+++ b/libcxx/include/__chrono/ostream.h
@@ -36,6 +36,7 @@
# include <__format/format_functions.h>
# include <__fwd/ostream.h>
# include <ratio>
+# include <sstream>
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__chrono/tzdb.h b/libcxx/include/__chrono/tzdb.h
index f731f8c318be07..dce97c3adfa1ba 100644
--- a/libcxx/include/__chrono/tzdb.h
+++ b/libcxx/include/__chrono/tzdb.h
@@ -21,7 +21,10 @@
# include <__chrono/time_zone.h>
# include <__chrono/time_zone_link.h>
# include <__config>
+# include <__memory/addressof.h>
+# include <stdexcept>
# include <string>
+# include <string_view>
# include <vector>
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__chrono/tzdb_list.h b/libcxx/include/__chrono/tzdb_list.h
index aeef4fe1aba3c1..18446d9926d9dc 100644
--- a/libcxx/include/__chrono/tzdb_list.h
+++ b/libcxx/include/__chrono/tzdb_list.h
@@ -21,6 +21,7 @@
# include <__config>
# include <__fwd/string.h>
# include <forward_list>
+# include <string_view>
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__chrono/year.h b/libcxx/include/__chrono/year.h
index 1899d09f38dbdb..2ae5180cb8fc97 100644
--- a/libcxx/include/__chrono/year.h
+++ b/libcxx/include/__chrono/year.h
@@ -11,8 +11,8 @@
#define _LIBCPP___CHRONO_YEAR_H
#include <__chrono/duration.h>
+#include <__compare/ordering.h>
#include <__config>
-#include <compare>
#include <limits>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__chrono/year_month.h b/libcxx/include/__chrono/year_month.h
index 369ea38f7560d9..cf9234bdb4625a 100644
--- a/libcxx/include/__chrono/year_month.h
+++ b/libcxx/include/__chrono/year_month.h
@@ -13,8 +13,8 @@
#include <__chrono/duration.h>
#include <__chrono/month.h>
#include <__chrono/year.h>
+#include <__compare/ordering.h>
#include <__config>
-#include <compare>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__chrono/year_month_day.h b/libcxx/include/__chrono/year_month_day.h
index b06c0be03e0de4..a0510a14f4edeb 100644
--- a/libcxx/include/__chrono/year_month_day.h
+++ b/libcxx/include/__chrono/year_month_day.h
@@ -19,8 +19,8 @@
#include <__chrono/time_point.h>
#include <__chrono/year.h>
#include <__chrono/year_month.h>
+#include <__compare/ordering.h>
#include <__config>
-#include <compare>
#include <limits>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__chrono/zoned_time.h b/libcxx/include/__chrono/zoned_time.h
index a16ffcf1192b2e..c7252cb003b8e4 100644
--- a/libcxx/include/__chrono/zoned_time.h
+++ b/libcxx/include/__chrono/zoned_time.h
@@ -22,12 +22,14 @@
# include <__chrono/system_clock.h>
# include <__chrono/time_zone.h>
# include <__chrono/tzdb_list.h>
+# include <__concepts/constructible.h>
# include <__config>
-# include <__fwd/string_view.h>
# include <__type_traits/common_type.h>
# include <__type_traits/conditional.h>
# include <__type_traits/remove_cvref.h>
+# include <__utility/declval.h>
# include <__utility/move.h>
+# include <string_view>
# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__concepts/predicate.h b/libcxx/include/__concepts/predicate.h
index 00731efc8fcd9e..e0263a878b0650 100644
--- a/libcxx/include/__concepts/predicate.h
+++ b/libcxx/include/__concepts/predicate.h
@@ -12,7 +12,7 @@
#include <__concepts/boolean_testable.h>
#include <__concepts/invocable.h>
#include <__config>
-#include <__functional/invoke.h>
+#include <__type_traits/invoke.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__expected/expected.h b/libcxx/include/__expected/expected.h
index 8661d5d6e9b939..f4ad455a19ea5e 100644
--- a/libcxx/include/__expected/expected.h
+++ b/libcxx/include/__expected/expected.h
@@ -17,9 +17,11 @@
#include <__functional/invoke.h>
#include <__memory/addressof.h>
#include <__memory/construct_at.h>
+#include <__type_traits/conditional.h>
#include <__type_traits/conjunction.h>
#include <__type_traits/disjunction.h>
#include <__type_traits/integral_constant.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_assignable.h>
#include <__type_traits/is_constructible.h>
#include <__type_traits/is_convertible.h>
diff --git a/libcxx/include/__format/format_arg_store.h b/libcxx/include/__format/format_arg_store.h
index 00de1c30b8733b..68e936acecade7 100644
--- a/libcxx/include/__format/format_arg_store.h
+++ b/libcxx/include/__format/format_arg_store.h
@@ -22,6 +22,7 @@
#include <__type_traits/conditional.h>
#include <__type_traits/extent.h>
#include <__type_traits/remove_const.h>
+#include <cstdint>
#include <string>
#include <string_view>
diff --git a/libcxx/include/__format/write_escaped.h b/libcxx/include/__format/write_escaped.h
index 052ea98c3c3b8c..9c288a84d0c441 100644
--- a/libcxx/include/__format/write_escaped.h
+++ b/libcxx/include/__format/write_escaped.h
@@ -16,6 +16,7 @@
#include <__charconv/to_chars_result.h>
#include <__chrono/statically_widen.h>
#include <__format/escaped_output_table.h>
+#include <__format/extended_grapheme_cluster_table.h>
#include <__format/formatter_output.h>
#include <__format/parser_std_format_spec.h>
#include <__format/unicode.h>
diff --git a/libcxx/include/__functional/bind.h b/libcxx/include/__functional/bind.h
index b4f46441da5074..4251ef74ab7bd4 100644
--- a/libcxx/include/__functional/bind.h
+++ b/libcxx/include/__functional/bind.h
@@ -11,10 +11,10 @@
#define _LIBCPP___FUNCTIONAL_BIND_H
#include <__config>
-#include <__functional/invoke.h>
#include <__functional/weak_result_type.h>
#include <__fwd/functional.h>
#include <__type_traits/decay.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_reference_wrapper.h>
#include <__type_traits/is_void.h>
#include <cstddef>
diff --git a/libcxx/include/__functional/hash.h b/libcxx/include/__functional/hash.h
index a9e450edd39f53..59dce7ac9cc031 100644
--- a/libcxx/include/__functional/hash.h
+++ b/libcxx/include/__functional/hash.h
@@ -13,6 +13,7 @@
#include <__functional/unary_function.h>
#include <__fwd/functional.h>
#include <__type_traits/conjunction.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/invoke.h>
#include <__type_traits/is_constructible.h>
#include <__type_traits/is_enum.h>
diff --git a/libcxx/include/__functional/invoke.h b/libcxx/include/__functional/invoke.h
index ef4bf25f07759f..ab201e94206e10 100644
--- a/libcxx/include/__functional/invoke.h
+++ b/libcxx/include/__functional/invoke.h
@@ -12,6 +12,7 @@
#include <__config>
#include <__type_traits/invoke.h>
+#include <__type_traits/is_void.h>
#include <__utility/forward.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__functional/mem_fn.h b/libcxx/include/__functional/mem_fn.h
index ee07a71774f9a9..58dbdf871d747b 100644
--- a/libcxx/include/__functional/mem_fn.h
+++ b/libcxx/include/__functional/mem_fn.h
@@ -12,8 +12,8 @@
#include <__config>
#include <__functional/binary_function.h>
-#include <__functional/invoke.h>
#include <__functional/weak_result_type.h>
+#include <__type_traits/invoke.h>
#include <__utility/forward.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
diff --git a/libcxx/include/__functional/perfect_forward.h b/libcxx/include/__functional/perfect_forward.h
index 74177c789b4ad0..8fd68db3d6eb84 100644
--- a/libcxx/include/__functional/perfect_forward.h
+++ b/libcxx/include/__functional/perfect_forward.h
@@ -11,6 +11,7 @@
#define _LIBCPP___FUNCTIONAL_PERFECT_FORWARD_H
#include <__config>
+#include <__cstddef/size_t.h>
#include <__type_traits/enable_if.h>
#include <__type_traits/invoke.h>
#include <__type_traits/is_constructible.h>
diff --git a/libcxx/include/__functional/reference_wrapper.h b/libcxx/include/__functional/reference_wrapper.h
index 3570e2673c8005..a4a66a50cf84ca 100644
--- a/libcxx/include/__functional/reference_wrapper.h
+++ b/libcxx/include/__functional/reference_wrapper.h
@@ -13,10 +13,10 @@
#include <__compare/synth_three_way.h>
#include <__concepts/boolean_testable.h>
#include <__config>
-#include <__functional/invoke.h>
#include <__functional/weak_result_type.h>
#include <__memory/addressof.h>
#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_const.h>
#include <__type_traits/remove_cvref.h>
#include <__type_traits/void_t.h>
diff --git a/libcxx/include/__functional/weak_result_type.h b/libcxx/include/__functional/weak_result_type.h
index ad7a8395186cd5..793775a2903e6f 100644
--- a/libcxx/include/__functional/weak_result_type.h
+++ b/libcxx/include/__functional/weak_result_type.h
@@ -12,9 +12,9 @@
#include <__config>
#include <__functional/binary_function.h>
-#include <__functional/invoke.h>
#include <__functional/unary_function.h>
#include <__type_traits/integral_constant.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_same.h>
#include <__utility/declval.h>
diff --git a/libcxx/include/__hash_table b/libcxx/include/__hash_table
index be0d65d9c0c597..821d4edd8d87c0 100644
--- a/libcxx/include/__hash_table
+++ b/libcxx/include/__hash_table
@@ -16,7 +16,6 @@
#include <__bit/countl.h>
#include <__config>
#include <__functional/hash.h>
-#include <__functional/invoke.h>
#include <__iterator/iterator_traits.h>
#include <__math/rounding_functions.h>
#include <__memory/addressof.h>
@@ -28,6 +27,8 @@
#include <__memory/unique_ptr.h>
#include <__type_traits/can_extract_key.h>
#include <__type_traits/conditional.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_const.h>
#include <__type_traits/is_constructible.h>
#include <__type_traits/is_nothrow_assignable.h>
diff --git a/libcxx/include/__iterator/common_iterator.h b/libcxx/include/__iterator/common_iterator.h
index ff382f32fe8950..31fc8267e5afb2 100644
--- a/libcxx/include/__iterator/common_iterator.h
+++ b/libcxx/include/__iterator/common_iterator.h
@@ -26,6 +26,7 @@
#include <__iterator/iterator_traits.h>
#include <__iterator/readable_traits.h>
#include <__memory/addressof.h>
+#include <__type_traits/conditional.h>
#include <__type_traits/is_pointer.h>
#include <__utility/declval.h>
#include <variant>
diff --git a/libcxx/include/__iterator/concepts.h b/libcxx/include/__iterator/concepts.h
index 93ea7efd495378..1c227933a482a1 100644
--- a/libcxx/include/__iterator/concepts.h
+++ b/libcxx/include/__iterator/concepts.h
@@ -26,7 +26,6 @@
#include <__concepts/semiregular.h>
#include <__concepts/totally_ordered.h>
#include <__config>
-#include <__functional/invoke.h>
#include <__iterator/incrementable_traits.h>
#include <__iterator/iter_move.h>
#include <__iterator/iterator_traits.h>
@@ -35,6 +34,7 @@
#include <__type_traits/add_pointer.h>
#include <__type_traits/common_reference.h>
#include <__type_traits/integral_constant.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_pointer.h>
#include <__type_traits/is_primary_template.h>
#include <__type_traits/is_reference.h>
diff --git a/libcxx/include/__iterator/counted_iterator.h b/libcxx/include/__iterator/counted_iterator.h
index a02c61bf34e2f9..d461427ccea3ce 100644
--- a/libcxx/include/__iterator/counted_iterator.h
+++ b/libcxx/include/__iterator/counted_iterator.h
@@ -11,6 +11,7 @@
#define _LIBCPP___ITERATOR_COUNTED_ITERATOR_H
#include <__assert>
+#include <__compare/ordering.h>
#include <__concepts/assignable.h>
#include <__concepts/common_with.h>
#include <__concepts/constructible.h>
@@ -28,7 +29,6 @@
#include <__type_traits/add_pointer.h>
#include <__type_traits/conditional.h>
#include <__utility/move.h>
-#include <compare>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__iterator/ostreambuf_iterator.h b/libcxx/include/__iterator/ostreambuf_iterator.h
index dda0094dc3f535..401b6f3f236032 100644
--- a/libcxx/include/__iterator/ostreambuf_iterator.h
+++ b/libcxx/include/__iterator/ostreambuf_iterator.h
@@ -11,10 +11,13 @@
#define _LIBCPP___ITERATOR_OSTREAMBUF_ITERATOR_H
#include <__config>
+#include <__fwd/ios.h>
+#include <__fwd/ostream.h>
+#include <__fwd/streambuf.h>
#include <__iterator/iterator.h>
#include <__iterator/iterator_traits.h>
#include <cstddef>
-#include <iosfwd> // for forward declaration of basic_streambuf
+#include <iosfwd> // for forward declaration of ostreambuf_iterator
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__memory/allocator_traits.h b/libcxx/include/__memory/allocator_traits.h
index 082c36d4b8c7ad..f4d9679807ae01 100644
--- a/libcxx/include/__memory/allocator_traits.h
+++ b/libcxx/include/__memory/allocator_traits.h
@@ -11,6 +11,7 @@
#define _LIBCPP___MEMORY_ALLOCATOR_TRAITS_H
#include <__config>
+#include <__fwd/memory.h>
#include <__memory/construct_at.h>
#include <__memory/pointer_traits.h>
#include <__type_traits/enable_if.h>
diff --git a/libcxx/include/__memory/inout_ptr.h b/libcxx/include/__memory/inout_ptr.h
index e5f3ac5d027e8e..b0e75937927cf2 100644
--- a/libcxx/include/__memory/inout_ptr.h
+++ b/libcxx/include/__memory/inout_ptr.h
@@ -15,6 +15,7 @@
#include <__memory/pointer_traits.h>
#include <__memory/shared_ptr.h>
#include <__memory/unique_ptr.h>
+#include <__type_traits/is_pointer.h>
#include <__type_traits/is_same.h>
#include <__type_traits/is_specialization.h>
#include <__type_traits/is_void.h>
diff --git a/libcxx/include/__memory/out_ptr.h b/libcxx/include/__memory/out_ptr.h
index fd99110790cc89..030a4c3b0ed0b8 100644
--- a/libcxx/include/__memory/out_ptr.h
+++ b/libcxx/include/__memory/out_ptr.h
@@ -15,6 +15,7 @@
#include <__memory/pointer_traits.h>
#include <__memory/shared_ptr.h>
#include <__memory/unique_ptr.h>
+#include <__type_traits/is_pointer.h>
#include <__type_traits/is_specialization.h>
#include <__type_traits/is_void.h>
#include <__utility/forward.h>
diff --git a/libcxx/include/__memory/pointer_traits.h b/libcxx/include/__memory/pointer_traits.h
index 8e08eb74413ee5..98961ddf9709f6 100644
--- a/libcxx/include/__memory/pointer_traits.h
+++ b/libcxx/include/__memory/pointer_traits.h
@@ -16,6 +16,7 @@
#include <__type_traits/conjunction.h>
#include <__type_traits/decay.h>
#include <__type_traits/enable_if.h>
+#include <__type_traits/integral_constant.h>
#include <__type_traits/is_class.h>
#include <__type_traits/is_function.h>
#include <__type_traits/is_void.h>
diff --git a/libcxx/include/__random/uniform_random_bit_generator.h b/libcxx/include/__random/uniform_random_bit_generator.h
index 4076f19b2cb2c1..75ffc27f9fcd85 100644
--- a/libcxx/include/__random/uniform_random_bit_generator.h
+++ b/libcxx/include/__random/uniform_random_bit_generator.h
@@ -13,8 +13,8 @@
#include <__concepts/invocable.h>
#include <__concepts/same_as.h>
#include <__config>
-#include <__functional/invoke.h>
#include <__type_traits/integral_constant.h>
+#include <__type_traits/invoke.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__ranges/elements_view.h b/libcxx/include/__ranges/elements_view.h
index 989d36fbcaaae5..ac0d8dbbd52b77 100644
--- a/libcxx/include/__ranges/elements_view.h
+++ b/libcxx/include/__ranges/elements_view.h
@@ -38,6 +38,7 @@
#include <__utility/forward.h>
#include <__utility/move.h>
#include <cstddef>
+#include <tuple> // std::get
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__ranges/range_adaptor.h b/libcxx/include/__ranges/range_adaptor.h
index 2da246f24e1d2f..b20165319bc351 100644
--- a/libcxx/include/__ranges/range_adaptor.h
+++ b/libcxx/include/__ranges/range_adaptor.h
@@ -19,8 +19,10 @@
#include <__functional/invoke.h>
#include <__ranges/concepts.h>
#include <__type_traits/decay.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_class.h>
#include <__type_traits/is_nothrow_constructible.h>
+#include <__type_traits/remove_cv.h>
#include <__type_traits/remove_cvref.h>
#include <__utility/forward.h>
#include <__utility/move.h>
diff --git a/libcxx/include/__ranges/transform_view.h b/libcxx/include/__ranges/transform_view.h
index 686a2a8fe8c21e..42e9a131f73b15 100644
--- a/libcxx/include/__ranges/transform_view.h
+++ b/libcxx/include/__ranges/transform_view.h
@@ -34,6 +34,7 @@
#include <__ranges/view_interface.h>
#include <__type_traits/conditional.h>
#include <__type_traits/decay.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_nothrow_constructible.h>
#include <__type_traits/is_object.h>
#include <__type_traits/is_reference.h>
diff --git a/libcxx/include/__string/char_traits.h b/libcxx/include/__string/char_traits.h
index 2660ac2ede2d5c..9b7d567dd3c278 100644
--- a/libcxx/include/__string/char_traits.h
+++ b/libcxx/include/__string/char_traits.h
@@ -20,6 +20,7 @@
#include <__functional/hash.h>
#include <__functional/identity.h>
#include <__iterator/iterator_traits.h>
+#include <__std_mbstate_t.h>
#include <__string/constexpr_c_functions.h>
#include <__type_traits/is_constant_evaluated.h>
#include <__utility/is_pointer_in_range.h>
diff --git a/libcxx/include/__thread/jthread.h b/libcxx/include/__thread/jthread.h
index 8fac72fff1689b..9f3d41d39132bb 100644
--- a/libcxx/include/__thread/jthread.h
+++ b/libcxx/include/__thread/jthread.h
@@ -11,17 +11,19 @@
#define _LIBCPP___THREAD_JTHREAD_H
#include <__config>
-#include <__functional/invoke.h>
#include <__stop_token/stop_source.h>
#include <__stop_token/stop_token.h>
+#include <__thread/id.h>
#include <__thread/support.h>
#include <__thread/thread.h>
#include <__type_traits/decay.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_constructible.h>
#include <__type_traits/is_same.h>
#include <__type_traits/remove_cvref.h>
#include <__utility/forward.h>
#include <__utility/move.h>
+#include <__utility/swap.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
diff --git a/libcxx/include/__thread/this_thread.h b/libcxx/include/__thread/this_thread.h
index 2318a9b8795814..c7521c90ed5baa 100644
--- a/libcxx/include/__thread/this_thread.h
+++ b/libcxx/include/__thread/this_thread.h
@@ -10,6 +10,7 @@
#ifndef _LIBCPP___THREAD_THIS_THREAD_H
#define _LIBCPP___THREAD_THIS_THREAD_H
+#include <__chrono/duration.h>
#include <__chrono/steady_clock.h>
#include <__chrono/time_point.h>
#include <__condition_variable/condition_variable.h>
diff --git a/libcxx/include/__thread/thread.h b/libcxx/include/__thread/thread.h
index 96de12e83b4917..481a3f38b82f0f 100644
--- a/libcxx/include/__thread/thread.h
+++ b/libcxx/include/__thread/thread.h
@@ -21,6 +21,7 @@
#include <__system_error/system_error.h>
#include <__thread/id.h>
#include <__thread/support.h>
+#include <__type_traits/decay.h>
#include <__utility/forward.h>
#include <tuple>
diff --git a/libcxx/include/__tree b/libcxx/include/__tree
index 5a3e90166853e0..f6ef21cdaa5b98 100644
--- a/libcxx/include/__tree
+++ b/libcxx/include/__tree
@@ -13,7 +13,6 @@
#include <__algorithm/min.h>
#include <__assert>
#include <__config>
-#include <__functional/invoke.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
#include <__iterator/next.h>
@@ -25,6 +24,8 @@
#include <__memory/unique_ptr.h>
#include <__type_traits/can_extract_key.h>
#include <__type_traits/conditional.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_const.h>
#include <__type_traits/is_constructible.h>
#include <__type_traits/is_nothrow_assignable.h>
diff --git a/libcxx/include/__type_traits/is_swappable.h b/libcxx/include/__type_traits/is_swappable.h
index f4d687094bbca1..221f017700a2e4 100644
--- a/libcxx/include/__type_traits/is_swappable.h
+++ b/libcxx/include/__type_traits/is_swappable.h
@@ -13,6 +13,7 @@
#include <__cstddef/size_t.h>
#include <__type_traits/add_lvalue_reference.h>
#include <__type_traits/enable_if.h>
+#include <__type_traits/integral_constant.h>
#include <__type_traits/is_assignable.h>
#include <__type_traits/is_constructible.h>
#include <__type_traits/is_nothrow_assignable.h>
diff --git a/libcxx/include/algorithm b/libcxx/include/algorithm
index 698e6f5cb7ad1f..36fd035b7e51b3 100644
--- a/libcxx/include/algorithm
+++ b/libcxx/include/algorithm
@@ -313,6 +313,9 @@ namespace ranges {
template<class I, class F>
using for_each_result = in_fun_result<I, F>; // since C++20
+ template<class I, class F>
+ using for_each_n_result = in_fun_result<I, F>; // since C++20
+
template<input_iterator I, sentinel_for<I> S, class Proj = identity,
indirectly_unary_invocable<projected<I, Proj>> Fun>
constexpr ranges::for_each_result<I, Fun>
@@ -700,6 +703,12 @@ namespace ranges {
ranges::lexicographical_compare(R1&& r1, R2&& r2, Comp comp = {},
Proj1 proj1 = {}, Proj2 proj2 = {}); // since C++20
+ template<class I, class O>
+ using move_result = in_out_result<I, O>; // since C++20
+
+ template<class I, class O>
+ using move_backward_result = in_out_result<I, O>; // since C++20
+
template<bidirectional_iterator I1, sentinel_for<I1> S1, bidirectional_iterator I2>
requires indirectly_movable<I1, I2>
constexpr ranges::move_backward_result<I1, I2>
diff --git a/libcxx/include/array b/libcxx/include/array
index fde7a7011e6432..0e9af4198632d1 100644
--- a/libcxx/include/array
+++ b/libcxx/include/array
@@ -124,6 +124,7 @@ template <size_t I, class T, size_t N> const T&& get(const array<T, N>&&) noexce
#include <__tuple/sfinae_helpers.h>
#include <__type_traits/conditional.h>
#include <__type_traits/conjunction.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/is_array.h>
#include <__type_traits/is_const.h>
#include <__type_traits/is_constructible.h>
diff --git a/libcxx/include/bitset b/libcxx/include/bitset
index 6bd7bfe585f38a..ce23d522168c4c 100644
--- a/libcxx/include/bitset
+++ b/libcxx/include/bitset
@@ -128,6 +128,7 @@ template <size_t N> struct hash<std::bitset<N>>;
#include <__algorithm/count.h>
#include <__algorithm/fill.h>
+#include <__algorithm/fill_n.h>
#include <__algorithm/find.h>
#include <__bit_reference>
#include <__config>
diff --git a/libcxx/include/deque b/libcxx/include/deque
index 78e11fdd65d603..bab0526629f0f8 100644
--- a/libcxx/include/deque
+++ b/libcxx/include/deque
@@ -184,7 +184,10 @@ template <class T, class Allocator, class Predicate>
#include <__algorithm/fill_n.h>
#include <__algorithm/lexicographical_compare.h>
#include <__algorithm/lexicographical_compare_three_way.h>
+#include <__algorithm/max.h>
#include <__algorithm/min.h>
+#include <__algorithm/move.h>
+#include <__algorithm/move_backward.h>
#include <__algorithm/remove.h>
#include <__algorithm/remove_if.h>
#include <__algorithm/unwrap_iter.h>
@@ -195,13 +198,18 @@ template <class T, class Allocator, class Predicate>
#include <__fwd/deque.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
+#include <__iterator/move_iterator.h>
#include <__iterator/next.h>
#include <__iterator/prev.h>
#include <__iterator/reverse_iterator.h>
#include <__iterator/segmented_iterator.h>
#include <__memory/addressof.h>
+#include <__memory/allocator.h>
#include <__memory/allocator_destructor.h>
+#include <__memory/allocator_traits.h>
+#include <__memory/compressed_pair.h>
#include <__memory/pointer_traits.h>
+#include <__memory/swap_allocator.h>
#include <__memory/temp_value.h>
#include <__memory/unique_ptr.h>
#include <__memory_resource/polymorphic_allocator.h>
@@ -211,10 +219,15 @@ template <class T, class Allocator, class Predicate>
#include <__ranges/from_range.h>
#include <__ranges/size.h>
#include <__split_buffer>
+#include <__type_traits/conditional.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/is_allocator.h>
#include <__type_traits/is_convertible.h>
+#include <__type_traits/is_nothrow_assignable.h>
+#include <__type_traits/is_nothrow_constructible.h>
#include <__type_traits/is_same.h>
#include <__type_traits/is_swappable.h>
+#include <__type_traits/is_trivially_relocatable.h>
#include <__type_traits/type_identity.h>
#include <__utility/forward.h>
#include <__utility/move.h>
diff --git a/libcxx/include/experimental/iterator b/libcxx/include/experimental/iterator
index edfe6e707bcec9..e3a9c771fe61cf 100644
--- a/libcxx/include/experimental/iterator
+++ b/libcxx/include/experimental/iterator
@@ -54,6 +54,8 @@ namespace std {
#include <__config>
#include <__memory/addressof.h>
+#include <__ostream/basic_ostream.h>
+#include <__string/char_traits.h>
#include <__type_traits/decay.h>
#include <__utility/forward.h>
#include <__utility/move.h>
diff --git a/libcxx/include/fstream b/libcxx/include/fstream
index 1cc3bd8858e122..de7c614836babd 100644
--- a/libcxx/include/fstream
+++ b/libcxx/include/fstream
@@ -189,6 +189,7 @@ typedef basic_fstream<wchar_t> wfstream;
#include <__algorithm/max.h>
#include <__assert>
#include <__config>
+#include <__filesystem/path.h>
#include <__fwd/fstream.h>
#include <__locale>
#include <__memory/addressof.h>
@@ -198,7 +199,6 @@ typedef basic_fstream<wchar_t> wfstream;
#include <__utility/swap.h>
#include <__utility/unreachable.h>
#include <cstdio>
-#include <filesystem>
#include <istream>
#include <ostream>
#include <typeinfo>
@@ -1576,4 +1576,8 @@ _LIBCPP_POP_MACROS
# include <type_traits>
#endif
+#if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 23
+# include <filesystem>
+#endif
+
#endif // _LIBCPP_FSTREAM
diff --git a/libcxx/include/future b/libcxx/include/future
index e14622e3233009..7dc38a3354bb4b 100644
--- a/libcxx/include/future
+++ b/libcxx/include/future
@@ -384,8 +384,13 @@ template <class R, class Alloc> struct uses_allocator<packaged_task<R>, Alloc>;
# include <__system_error/error_category.h>
# include <__system_error/error_code.h>
# include <__system_error/error_condition.h>
+# include <__type_traits/add_lvalue_reference.h>
# include <__type_traits/aligned_storage.h>
+# include <__type_traits/conditional.h>
+# include <__type_traits/decay.h>
+# include <__type_traits/enable_if.h>
# include <__type_traits/strip_signature.h>
+# include <__type_traits/underlying_type.h>
# include <__utility/auto_cast.h>
# include <__utility/forward.h>
# include <__utility/move.h>
diff --git a/libcxx/include/iomanip b/libcxx/include/iomanip
index 70c8c354e86f21..2c4023d4ee44a1 100644
--- a/libcxx/include/iomanip
+++ b/libcxx/include/iomanip
@@ -46,6 +46,8 @@ template <class charT, class traits, class Allocator>
#ifndef _LIBCPP_HAS_NO_LOCALIZATION
+# include <__ostream/basic_ostream.h>
+# include <ios>
# include <istream>
# include <version>
diff --git a/libcxx/include/map b/libcxx/include/map
index 5d97538c0cfa60..7fca4c8a0872fd 100644
--- a/libcxx/include/map
+++ b/libcxx/include/map
@@ -585,6 +585,9 @@ erase_if(multimap<Key, T, Compare, Allocator>& c, Predicate pred); // C++20
#include <__iterator/reverse_iterator.h>
#include <__memory/addressof.h>
#include <__memory/allocator.h>
+#include <__memory/allocator_traits.h>
+#include <__memory/pointer_traits.h>
+#include <__memory/unique_ptr.h>
#include <__memory_resource/polymorphic_allocator.h>
#include <__node_handle>
#include <__ranges/concepts.h>
@@ -592,9 +595,13 @@ erase_if(multimap<Key, T, Compare, Allocator>& c, Predicate pred); // C++20
#include <__ranges/from_range.h>
#include <__tree>
#include <__type_traits/is_allocator.h>
+#include <__type_traits/remove_const.h>
+#include <__type_traits/type_identity.h>
#include <__utility/forward.h>
+#include <__utility/pair.h>
#include <__utility/piecewise_construct.h>
#include <__utility/swap.h>
+#include <new> // for std::launder
#include <stdexcept>
#include <tuple>
#include <version>
diff --git a/libcxx/include/optional b/libcxx/include/optional
index b0933b59b25d26..7578833685ec1f 100644
--- a/libcxx/include/optional
+++ b/libcxx/include/optional
@@ -179,6 +179,7 @@ namespace std {
#include <__assert>
#include <__compare/compare_three_way_result.h>
+#include <__compare/ordering.h>
#include <__compare/three_way_comparable.h>
#include <__concepts/invocable.h>
#include <__config>
@@ -195,6 +196,8 @@ namespace std {
#include <__type_traits/conjunction.h>
#include <__type_traits/decay.h>
#include <__type_traits/disjunction.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_array.h>
#include <__type_traits/is_assignable.h>
#include <__type_traits/is_constructible.h>
diff --git a/libcxx/include/set b/libcxx/include/set
index b614e048e2cfd4..0c2ca64139e0d3 100644
--- a/libcxx/include/set
+++ b/libcxx/include/set
@@ -524,14 +524,23 @@ erase_if(multiset<Key, Compare, Allocator>& c, Predicate pred); // C++20
#include <__iterator/ranges_iterator_traits.h>
#include <__iterator/reverse_iterator.h>
#include <__memory/allocator.h>
+#include <__memory/allocator_traits.h>
#include <__memory_resource/polymorphic_allocator.h>
#include <__node_handle>
#include <__ranges/concepts.h>
#include <__ranges/container_compatible_range.h>
#include <__ranges/from_range.h>
#include <__tree>
+#include <__type_traits/enable_if.h>
#include <__type_traits/is_allocator.h>
+#include <__type_traits/is_nothrow_assignable.h>
+#include <__type_traits/is_nothrow_constructible.h>
+#include <__type_traits/is_same.h>
+#include <__type_traits/is_swappable.h>
+#include <__type_traits/type_identity.h>
#include <__utility/forward.h>
+#include <__utility/move.h>
+#include <__utility/pair.h>
#include <version>
// standard-mandated includes
diff --git a/libcxx/include/sstream b/libcxx/include/sstream
index 553cc08b122cfe..c29abab9c5fc3b 100644
--- a/libcxx/include/sstream
+++ b/libcxx/include/sstream
@@ -320,7 +320,9 @@ typedef basic_stringstream<wchar_t> wstringstream;
# include <__ostream/basic_ostream.h>
# include <__type_traits/is_convertible.h>
# include <__utility/swap.h>
+# include <ios>
# include <istream>
+# include <locale>
# include <string>
# include <string_view>
# include <version>
diff --git a/libcxx/include/tuple b/libcxx/include/tuple
index 5161c2aa97c2ba..e7e14b8d12d42a 100644
--- a/libcxx/include/tuple
+++ b/libcxx/include/tuple
@@ -211,9 +211,9 @@ template <class... Types>
// clang-format on
#include <__compare/common_comparison_category.h>
+#include <__compare/ordering.h>
#include <__compare/synth_three_way.h>
#include <__config>
-#include <__functional/invoke.h>
#include <__fwd/array.h>
#include <__fwd/pair.h>
#include <__fwd/tuple.h>
@@ -234,6 +234,8 @@ template <class... Types>
#include <__type_traits/conjunction.h>
#include <__type_traits/copy_cvref.h>
#include <__type_traits/disjunction.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_arithmetic.h>
#include <__type_traits/is_assignable.h>
#include <__type_traits/is_constructible.h>
@@ -254,6 +256,7 @@ template <class... Types>
#include <__type_traits/remove_cvref.h>
#include <__type_traits/remove_reference.h>
#include <__type_traits/unwrap_ref.h>
+#include <__utility/declval.h>
#include <__utility/forward.h>
#include <__utility/integer_sequence.h>
#include <__utility/move.h>
diff --git a/libcxx/include/unordered_map b/libcxx/include/unordered_map
index 0743b2e35e12a1..0d71a51ee9e729 100644
--- a/libcxx/include/unordered_map
+++ b/libcxx/include/unordered_map
@@ -586,6 +586,7 @@ template <class Key, class T, class Hash, class Pred, class Alloc>
#include <__algorithm/is_permutation.h>
#include <__assert>
#include <__config>
+#include <__functional/hash.h>
#include <__functional/is_transparent.h>
#include <__functional/operations.h>
#include <__hash_table>
@@ -595,6 +596,9 @@ template <class Key, class T, class Hash, class Pred, class Alloc>
#include <__iterator/ranges_iterator_traits.h>
#include <__memory/addressof.h>
#include <__memory/allocator.h>
+#include <__memory/allocator_traits.h>
+#include <__memory/pointer_traits.h>
+#include <__memory/unique_ptr.h>
#include <__memory_resource/polymorphic_allocator.h>
#include <__node_handle>
#include <__ranges/concepts.h>
@@ -603,8 +607,11 @@ template <class Key, class T, class Hash, class Pred, class Alloc>
#include <__type_traits/enable_if.h>
#include <__type_traits/is_allocator.h>
#include <__type_traits/is_integral.h>
+#include <__type_traits/remove_const.h>
#include <__type_traits/type_identity.h>
#include <__utility/forward.h>
+#include <__utility/pair.h>
+#include <new> // launder
#include <stdexcept>
#include <tuple>
#include <version>
diff --git a/libcxx/include/unordered_set b/libcxx/include/unordered_set
index bd8d3ab970ab97..2b09c72b866b03 100644
--- a/libcxx/include/unordered_set
+++ b/libcxx/include/unordered_set
@@ -534,6 +534,7 @@ template <class Value, class Hash, class Pred, class Alloc>
#include <__algorithm/is_permutation.h>
#include <__assert>
#include <__config>
+#include <__functional/hash.h>
#include <__functional/is_transparent.h>
#include <__functional/operations.h>
#include <__hash_table>
@@ -543,6 +544,7 @@ template <class Value, class Hash, class Pred, class Alloc>
#include <__iterator/ranges_iterator_traits.h>
#include <__memory/addressof.h>
#include <__memory/allocator.h>
+#include <__memory/allocator_traits.h>
#include <__memory_resource/polymorphic_allocator.h>
#include <__node_handle>
#include <__ranges/concepts.h>
@@ -551,7 +553,14 @@ template <class Value, class Hash, class Pred, class Alloc>
#include <__type_traits/enable_if.h>
#include <__type_traits/is_allocator.h>
#include <__type_traits/is_integral.h>
+#include <__type_traits/is_nothrow_assignable.h>
+#include <__type_traits/is_nothrow_constructible.h>
+#include <__type_traits/is_same.h>
+#include <__type_traits/is_swappable.h>
+#include <__type_traits/type_identity.h>
#include <__utility/forward.h>
+#include <__utility/move.h>
+#include <__utility/pair.h>
#include <version>
// standard-mandated includes
diff --git a/libcxx/include/variant b/libcxx/include/variant
index 2fa5623d4f118a..fd3aebaea0e14a 100644
--- a/libcxx/include/variant
+++ b/libcxx/include/variant
@@ -214,11 +214,11 @@ namespace std {
#include <__compare/common_comparison_category.h>
#include <__compare/compare_three_way_result.h>
+#include <__compare/ordering.h>
#include <__compare/three_way_comparable.h>
#include <__config>
#include <__exception/exception.h>
#include <__functional/hash.h>
-#include <__functional/invoke.h>
#include <__functional/operations.h>
#include <__functional/unary_function.h>
#include <__fwd/variant.h>
@@ -231,8 +231,12 @@ namespace std {
#include <__type_traits/add_pointer.h>
#include <__type_traits/add_volatile.h>
#include <__type_traits/common_type.h>
+#include <__type_traits/conditional.h>
#include <__type_traits/conjunction.h>
+#include <__type_traits/decay.h>
#include <__type_traits/dependent_type.h>
+#include <__type_traits/enable_if.h>
+#include <__type_traits/invoke.h>
#include <__type_traits/is_array.h>
#include <__type_traits/is_assignable.h>
#include <__type_traits/is_constructible.h>
@@ -241,6 +245,7 @@ namespace std {
#include <__type_traits/is_nothrow_assignable.h>
#include <__type_traits/is_nothrow_constructible.h>
#include <__type_traits/is_reference.h>
+#include <__type_traits/is_swappable.h>
#include <__type_traits/is_trivially_assignable.h>
#include <__type_traits/is_trivially_constructible.h>
#include <__type_traits/is_trivially_destructible.h>
@@ -248,6 +253,7 @@ namespace std {
#include <__type_traits/is_void.h>
#include <__type_traits/remove_const.h>
#include <__type_traits/remove_cvref.h>
+#include <__type_traits/remove_reference.h>
#include <__type_traits/type_identity.h>
#include <__type_traits/void_t.h>
#include <__utility/declval.h>
diff --git a/libcxx/include/vector b/libcxx/include/vector
index 2a6484988c3102..7d3aac5989a48c 100644
--- a/libcxx/include/vector
+++ b/libcxx/include/vector
@@ -310,6 +310,10 @@ template<class T, class charT> requires is-vector-bool-reference<T> // Since C++
#include <__algorithm/iterator_operations.h>
#include <__algorithm/lexicographical_compare.h>
#include <__algorithm/lexicographical_compare_three_way.h>
+#include <__algorithm/max.h>
+#include <__algorithm/min.h>
+#include <__algorithm/move.h>
+#include <__algorithm/move_backward.h>
#include <__algorithm/remove.h>
#include <__algorithm/remove_if.h>
#include <__algorithm/rotate.h>
@@ -329,11 +333,16 @@ template<class T, class charT> requires is-vector-bool-reference<T> // Since C++
#include <__iterator/bounded_iter.h>
#include <__iterator/distance.h>
#include <__iterator/iterator_traits.h>
+#include <__iterator/move_iterator.h>
+#include <__iterator/next.h>
#include <__iterator/reverse_iterator.h>
#include <__iterator/wrap_iter.h>
#include <__memory/addressof.h>
#include <__memory/allocate_at_least.h>
+#include <__memory/allocator.h>
#include <__memory/allocator_traits.h>
+#include <__memory/compressed_pair.h>
+#include <__memory/construct_at.h>
#include <__memory/noexcept_move_assign_container.h>
#include <__memory/pointer_traits.h>
#include <__memory/swap_allocator.h>
@@ -346,9 +355,14 @@ template<class T, class charT> requires is-vector-bool-reference<T> // Since C++
#include <__ranges/from_range.h>
#include <__ranges/size.h>
#include <__split_buffer>
+#include <__type_traits/conditional.h>
+#include <__type_traits/enable_if.h>
#include <__type_traits/is_allocator.h>
#include <__type_traits/is_constructible.h>
#include <__type_traits/is_nothrow_assignable.h>
+#include <__type_traits/is_nothrow_constructible.h>
+#include <__type_traits/is_same.h>
+#include <__type_traits/is_trivially_relocatable.h>
#include <__type_traits/type_identity.h>
#include <__utility/exception_guard.h>
#include <__utility/forward.h>
diff --git a/libcxx/test/libcxx/algorithms/alg.sorting/alg.heap.operations/make.heap/complexity.pass.cpp b/libcxx/test/libcxx/algorithms/alg.sorting/alg.heap.operations/make.heap/complexity.pass.cpp
index 81ff96c7295fa1..cc48a81194e36d 100644
--- a/libcxx/test/libcxx/algorithms/alg.sorting/alg.heap.operations/make.heap/complexity.pass.cpp
+++ b/libcxx/test/libcxx/algorithms/alg.sorting/alg.heap.operations/make.heap/complexity.pass.cpp
@@ -16,6 +16,7 @@
#include <algorithm>
#include <cassert>
#include <random>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/algorithms/ranges_robust_against_copying_comparators.pass.cpp b/libcxx/test/libcxx/algorithms/ranges_robust_against_copying_comparators.pass.cpp
index 6bac7deadfa6ed..5a8640a8fc035c 100644
--- a/libcxx/test/libcxx/algorithms/ranges_robust_against_copying_comparators.pass.cpp
+++ b/libcxx/test/libcxx/algorithms/ranges_robust_against_copying_comparators.pass.cpp
@@ -16,6 +16,7 @@
#include <cassert>
#include <cstddef>
#include <deque>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/algorithms/ranges_robust_against_copying_projections.pass.cpp b/libcxx/test/libcxx/algorithms/ranges_robust_against_copying_projections.pass.cpp
index d20abf3ffc2782..8cdf53c1835124 100644
--- a/libcxx/test/libcxx/algorithms/ranges_robust_against_copying_projections.pass.cpp
+++ b/libcxx/test/libcxx/algorithms/ranges_robust_against_copying_projections.pass.cpp
@@ -16,6 +16,7 @@
#include <cassert>
#include <cstddef>
#include <deque>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/algorithms/robust_against_copying_comparators.pass.cpp b/libcxx/test/libcxx/algorithms/robust_against_copying_comparators.pass.cpp
index 307610dd9b6db4..df656f296bd051 100644
--- a/libcxx/test/libcxx/algorithms/robust_against_copying_comparators.pass.cpp
+++ b/libcxx/test/libcxx/algorithms/robust_against_copying_comparators.pass.cpp
@@ -12,6 +12,7 @@
#include <cassert>
#include <compare>
#include <cstddef>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/algorithms/robust_against_cpp20_hostile_iterators.compile.pass.cpp b/libcxx/test/libcxx/algorithms/robust_against_cpp20_hostile_iterators.compile.pass.cpp
index f5ad5a8d3d3eee..03fef57ee259a6 100644
--- a/libcxx/test/libcxx/algorithms/robust_against_cpp20_hostile_iterators.compile.pass.cpp
+++ b/libcxx/test/libcxx/algorithms/robust_against_cpp20_hostile_iterators.compile.pass.cpp
@@ -12,6 +12,7 @@
#include <algorithm>
#include <functional>
+#include <iterator>
#include <random>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/containers/sequences/vector.bool/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/sequences/vector.bool/abi.compile.pass.cpp
index 6e6ea67d9742b3..9920d131da3e26 100644
--- a/libcxx/test/libcxx/containers/sequences/vector.bool/abi.compile.pass.cpp
+++ b/libcxx/test/libcxx/containers/sequences/vector.bool/abi.compile.pass.cpp
@@ -9,6 +9,7 @@
// UNSUPPORTED: libcpp-abi-no-compressed-pair-padding
#include <vector>
+#include <cstdint>
#include "min_allocator.h"
#include "test_allocator.h"
diff --git a/libcxx/test/libcxx/containers/sequences/vector/abi.compile.pass.cpp b/libcxx/test/libcxx/containers/sequences/vector/abi.compile.pass.cpp
index 5dcbdad41968a4..57684951c8e8e9 100644
--- a/libcxx/test/libcxx/containers/sequences/vector/abi.compile.pass.cpp
+++ b/libcxx/test/libcxx/containers/sequences/vector/abi.compile.pass.cpp
@@ -6,6 +6,7 @@
//
//===----------------------------------------------------------------------===//
+#include <cstdint>
#include <vector>
#include "min_allocator.h"
diff --git a/libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp b/libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp
index 4aa87d30b3f0bf..0b56c96f8d4e42 100644
--- a/libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp
+++ b/libcxx/test/libcxx/containers/unord/next_pow2.pass.cpp
@@ -19,8 +19,9 @@
// Otherwise, return the next power of 2.
#include <__hash_table>
-#include <unordered_map>
#include <cassert>
+#include <cstdint>
+#include <unordered_map>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/containers/unord/next_prime.pass.cpp b/libcxx/test/libcxx/containers/unord/next_prime.pass.cpp
index d19ab1ebb505a2..0efbe0342d0b62 100644
--- a/libcxx/test/libcxx/containers/unord/next_prime.pass.cpp
+++ b/libcxx/test/libcxx/containers/unord/next_prime.pass.cpp
@@ -18,6 +18,7 @@
#include <__hash_table>
#include <cassert>
+#include <cstddef>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/depr/depr.function.objects/depr.adaptors.cxx1z.pass.cpp b/libcxx/test/libcxx/depr/depr.function.objects/depr.adaptors.cxx1z.pass.cpp
index 7583c36ba19df1..d212f36bb1ab48 100644
--- a/libcxx/test/libcxx/depr/depr.function.objects/depr.adaptors.cxx1z.pass.cpp
+++ b/libcxx/test/libcxx/depr/depr.function.objects/depr.adaptors.cxx1z.pass.cpp
@@ -18,6 +18,7 @@
#include <functional>
#include <cassert>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/diagnostics/ranges.nodiscard.verify.cpp b/libcxx/test/libcxx/diagnostics/ranges.nodiscard.verify.cpp
index 60f3974b2b57d4..03b4df735edb54 100644
--- a/libcxx/test/libcxx/diagnostics/ranges.nodiscard.verify.cpp
+++ b/libcxx/test/libcxx/diagnostics/ranges.nodiscard.verify.cpp
@@ -13,6 +13,7 @@
// clang-format off
#include <ranges>
+#include <functional>
#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/iterators/iterator.requirements/iterator.concepts/cpp20_iter_concepts.pass.cpp b/libcxx/test/libcxx/iterators/iterator.requirements/iterator.concepts/cpp20_iter_concepts.pass.cpp
index ddd07cefbde64d..d551a551795ff1 100644
--- a/libcxx/test/libcxx/iterators/iterator.requirements/iterator.concepts/cpp20_iter_concepts.pass.cpp
+++ b/libcxx/test/libcxx/iterators/iterator.requirements/iterator.concepts/cpp20_iter_concepts.pass.cpp
@@ -19,11 +19,12 @@
// random_access_iterator_tag.
// (1.4) -- Otherwise, ITER_CONCEPT(I) does not denote a type.
-#include "test_macros.h"
-
#include <__type_traits/is_valid_expansion.h>
+#include <cstddef>
#include <iterator>
+#include "test_macros.h"
+
struct OtherTag : std::input_iterator_tag {};
struct OtherTagTwo : std::output_iterator_tag {};
diff --git a/libcxx/test/libcxx/ranges/range.utility.helpers/has_arrow.compile.pass.cpp b/libcxx/test/libcxx/ranges/range.utility.helpers/has_arrow.compile.pass.cpp
index 1e04968446bad1..4f246f414b26b6 100644
--- a/libcxx/test/libcxx/ranges/range.utility.helpers/has_arrow.compile.pass.cpp
+++ b/libcxx/test/libcxx/ranges/range.utility.helpers/has_arrow.compile.pass.cpp
@@ -10,6 +10,7 @@
// UNSUPPORTED: c++03, c++11, c++14, c++17
+#include <cstddef>
#include <iterator>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/strings/basic.string/alignof.compile.pass.cpp b/libcxx/test/libcxx/strings/basic.string/alignof.compile.pass.cpp
index 00943ef8762f89..49cbde14c568bb 100644
--- a/libcxx/test/libcxx/strings/basic.string/alignof.compile.pass.cpp
+++ b/libcxx/test/libcxx/strings/basic.string/alignof.compile.pass.cpp
@@ -10,6 +10,7 @@
// UNSUPPORTED: c++03
+#include <cstdint>
#include <iterator>
#include <string>
diff --git a/libcxx/test/libcxx/strings/basic.string/sizeof.compile.pass.cpp b/libcxx/test/libcxx/strings/basic.string/sizeof.compile.pass.cpp
index b85895ffcd837f..31f1a94c732168 100644
--- a/libcxx/test/libcxx/strings/basic.string/sizeof.compile.pass.cpp
+++ b/libcxx/test/libcxx/strings/basic.string/sizeof.compile.pass.cpp
@@ -8,6 +8,7 @@
// Ensure that we never change the size or alignment of `basic_string`
+#include <cstdint>
#include <iterator>
#include <string>
diff --git a/libcxx/test/libcxx/transitive_includes/cxx03.csv b/libcxx/test/libcxx/transitive_includes/cxx03.csv
index 135a5fda93a16b..506b5cd02c4495 100644
--- a/libcxx/test/libcxx/transitive_includes/cxx03.csv
+++ b/libcxx/test/libcxx/transitive_includes/cxx03.csv
@@ -577,19 +577,43 @@ expected initializer_list
expected new
expected type_traits
expected version
+experimental/iterator algorithm
+experimental/iterator atomic
+experimental/iterator bit
+experimental/iterator bitset
+experimental/iterator cctype
+experimental/iterator cerrno
+experimental/iterator climits
+experimental/iterator clocale
experimental/iterator cmath
experimental/iterator compare
experimental/iterator concepts
+experimental/iterator cstdarg
experimental/iterator cstddef
experimental/iterator cstdint
+experimental/iterator cstdio
experimental/iterator cstdlib
experimental/iterator cstring
+experimental/iterator ctime
+experimental/iterator cwchar
+experimental/iterator cwctype
experimental/iterator exception
experimental/iterator initializer_list
+experimental/iterator ios
experimental/iterator iosfwd
experimental/iterator iterator
experimental/iterator limits
+experimental/iterator locale
+experimental/iterator memory
+experimental/iterator mutex
experimental/iterator new
+experimental/iterator optional
+experimental/iterator ratio
+experimental/iterator stdexcept
+experimental/iterator streambuf
+experimental/iterator string
+experimental/iterator string_view
+experimental/iterator system_error
experimental/iterator tuple
experimental/iterator type_traits
experimental/iterator typeinfo
@@ -780,6 +804,7 @@ fstream filesystem
fstream format
fstream functional
fstream initializer_list
+fstream iomanip
fstream ios
fstream iosfwd
fstream istream
diff --git a/libcxx/test/libcxx/transitive_includes/cxx11.csv b/libcxx/test/libcxx/transitive_includes/cxx11.csv
index 135a5fda93a16b..506b5cd02c4495 100644
--- a/libcxx/test/libcxx/transitive_includes/cxx11.csv
+++ b/libcxx/test/libcxx/transitive_includes/cxx11.csv
@@ -577,19 +577,43 @@ expected initializer_list
expected new
expected type_traits
expected version
+experimental/iterator algorithm
+experimental/iterator atomic
+experimental/iterator bit
+experimental/iterator bitset
+experimental/iterator cctype
+experimental/iterator cerrno
+experimental/iterator climits
+experimental/iterator clocale
experimental/iterator cmath
experimental/iterator compare
experimental/iterator concepts
+experimental/iterator cstdarg
experimental/iterator cstddef
experimental/iterator cstdint
+experimental/iterator cstdio
experimental/iterator cstdlib
experimental/iterator cstring
+experimental/iterator ctime
+experimental/iterator cwchar
+experimental/iterator cwctype
experimental/iterator exception
experimental/iterator initializer_list
+experimental/iterator ios
experimental/iterator iosfwd
experimental/iterator iterator
experimental/iterator limits
+experimental/iterator locale
+experimental/iterator memory
+experimental/iterator mutex
experimental/iterator new
+experimental/iterator optional
+experimental/iterator ratio
+experimental/iterator stdexcept
+experimental/iterator streambuf
+experimental/iterator string
+experimental/iterator string_view
+experimental/iterator system_error
experimental/iterator tuple
experimental/iterator type_traits
experimental/iterator typeinfo
@@ -780,6 +804,7 @@ fstream filesystem
fstream format
fstream functional
fstream initializer_list
+fstream iomanip
fstream ios
fstream iosfwd
fstream istream
diff --git a/libcxx/test/libcxx/transitive_includes/cxx14.csv b/libcxx/test/libcxx/transitive_includes/cxx14.csv
index f1add2e07bd0a4..828e1d62c6ec3e 100644
--- a/libcxx/test/libcxx/transitive_includes/cxx14.csv
+++ b/libcxx/test/libcxx/transitive_includes/cxx14.csv
@@ -588,19 +588,44 @@ expected initializer_list
expected new
expected type_traits
expected version
+experimental/iterator algorithm
+experimental/iterator atomic
+experimental/iterator bit
+experimental/iterator bitset
+experimental/iterator cctype
+experimental/iterator cerrno
+experimental/iterator climits
+experimental/iterator clocale
experimental/iterator cmath
experimental/iterator compare
experimental/iterator concepts
+experimental/iterator cstdarg
experimental/iterator cstddef
experimental/iterator cstdint
+experimental/iterator cstdio
experimental/iterator cstdlib
experimental/iterator cstring
+experimental/iterator ctime
+experimental/iterator cwchar
+experimental/iterator cwctype
experimental/iterator exception
+experimental/iterator execution
experimental/iterator initializer_list
+experimental/iterator ios
experimental/iterator iosfwd
experimental/iterator iterator
experimental/iterator limits
+experimental/iterator locale
+experimental/iterator memory
+experimental/iterator mutex
experimental/iterator new
+experimental/iterator optional
+experimental/iterator ratio
+experimental/iterator stdexcept
+experimental/iterator streambuf
+experimental/iterator string
+experimental/iterator string_view
+experimental/iterator system_error
experimental/iterator tuple
experimental/iterator type_traits
experimental/iterator typeinfo
@@ -800,6 +825,7 @@ fstream filesystem
fstream format
fstream functional
fstream initializer_list
+fstream iomanip
fstream ios
fstream iosfwd
fstream istream
diff --git a/libcxx/test/libcxx/transitive_includes/cxx17.csv b/libcxx/test/libcxx/transitive_includes/cxx17.csv
index 11847d3ef6ad48..0bee6e9beb7af1 100644
--- a/libcxx/test/libcxx/transitive_includes/cxx17.csv
+++ b/libcxx/test/libcxx/transitive_includes/cxx17.csv
@@ -577,19 +577,43 @@ expected initializer_list
expected new
expected type_traits
expected version
+experimental/iterator algorithm
+experimental/iterator atomic
+experimental/iterator bit
+experimental/iterator bitset
+experimental/iterator cctype
+experimental/iterator cerrno
+experimental/iterator climits
+experimental/iterator clocale
experimental/iterator cmath
experimental/iterator compare
experimental/iterator concepts
+experimental/iterator cstdarg
experimental/iterator cstddef
experimental/iterator cstdint
+experimental/iterator cstdio
experimental/iterator cstdlib
experimental/iterator cstring
+experimental/iterator ctime
+experimental/iterator cwchar
+experimental/iterator cwctype
experimental/iterator exception
experimental/iterator initializer_list
+experimental/iterator ios
experimental/iterator iosfwd
experimental/iterator iterator
experimental/iterator limits
+experimental/iterator locale
+experimental/iterator memory
+experimental/iterator mutex
experimental/iterator new
+experimental/iterator optional
+experimental/iterator ratio
+experimental/iterator stdexcept
+experimental/iterator streambuf
+experimental/iterator string
+experimental/iterator string_view
+experimental/iterator system_error
experimental/iterator tuple
experimental/iterator type_traits
experimental/iterator typeinfo
diff --git a/libcxx/test/libcxx/transitive_includes/cxx20.csv b/libcxx/test/libcxx/transitive_includes/cxx20.csv
index 72231fd80555d8..026c26f3bd9819 100644
--- a/libcxx/test/libcxx/transitive_includes/cxx20.csv
+++ b/libcxx/test/libcxx/transitive_includes/cxx20.csv
@@ -565,19 +565,43 @@ expected initializer_list
expected new
expected type_traits
expected version
+experimental/iterator algorithm
+experimental/iterator atomic
+experimental/iterator bit
+experimental/iterator bitset
+experimental/iterator cctype
+experimental/iterator cerrno
+experimental/iterator climits
+experimental/iterator clocale
experimental/iterator cmath
experimental/iterator compare
experimental/iterator concepts
+experimental/iterator cstdarg
experimental/iterator cstddef
experimental/iterator cstdint
+experimental/iterator cstdio
experimental/iterator cstdlib
experimental/iterator cstring
+experimental/iterator ctime
+experimental/iterator cwchar
+experimental/iterator cwctype
experimental/iterator exception
experimental/iterator initializer_list
+experimental/iterator ios
experimental/iterator iosfwd
experimental/iterator iterator
experimental/iterator limits
+experimental/iterator locale
+experimental/iterator memory
+experimental/iterator mutex
experimental/iterator new
+experimental/iterator optional
+experimental/iterator ratio
+experimental/iterator stdexcept
+experimental/iterator streambuf
+experimental/iterator string
+experimental/iterator string_view
+experimental/iterator system_error
experimental/iterator tuple
experimental/iterator type_traits
experimental/iterator typeinfo
diff --git a/libcxx/test/libcxx/transitive_includes/cxx23.csv b/libcxx/test/libcxx/transitive_includes/cxx23.csv
index 453f139f542bf3..861fd2bb9ba98f 100644
--- a/libcxx/test/libcxx/transitive_includes/cxx23.csv
+++ b/libcxx/test/libcxx/transitive_includes/cxx23.csv
@@ -299,16 +299,35 @@ expected cstdint
expected initializer_list
expected new
expected version
+experimental/iterator bitset
+experimental/iterator cctype
+experimental/iterator cerrno
+experimental/iterator climits
+experimental/iterator clocale
experimental/iterator compare
experimental/iterator concepts
experimental/iterator cstddef
experimental/iterator cstdint
+experimental/iterator cstdio
+experimental/iterator cstdlib
experimental/iterator cstring
+experimental/iterator ctime
+experimental/iterator cwchar
+experimental/iterator cwctype
experimental/iterator initializer_list
+experimental/iterator ios
experimental/iterator iosfwd
experimental/iterator iterator
experimental/iterator limits
+experimental/iterator locale
experimental/iterator new
+experimental/iterator ratio
+experimental/iterator stdexcept
+experimental/iterator streambuf
+experimental/iterator string
+experimental/iterator string_view
+experimental/iterator tuple
+experimental/iterator typeinfo
experimental/iterator variant
experimental/iterator version
experimental/memory cstddef
diff --git a/libcxx/test/libcxx/transitive_includes/cxx26.csv b/libcxx/test/libcxx/transitive_includes/cxx26.csv
index 453f139f542bf3..a31139f1ee8565 100644
--- a/libcxx/test/libcxx/transitive_includes/cxx26.csv
+++ b/libcxx/test/libcxx/transitive_includes/cxx26.csv
@@ -299,16 +299,35 @@ expected cstdint
expected initializer_list
expected new
expected version
+experimental/iterator bitset
+experimental/iterator cctype
+experimental/iterator cerrno
+experimental/iterator climits
+experimental/iterator clocale
experimental/iterator compare
experimental/iterator concepts
experimental/iterator cstddef
experimental/iterator cstdint
+experimental/iterator cstdio
+experimental/iterator cstdlib
experimental/iterator cstring
+experimental/iterator ctime
+experimental/iterator cwchar
+experimental/iterator cwctype
experimental/iterator initializer_list
+experimental/iterator ios
experimental/iterator iosfwd
experimental/iterator iterator
experimental/iterator limits
+experimental/iterator locale
experimental/iterator new
+experimental/iterator ratio
+experimental/iterator stdexcept
+experimental/iterator streambuf
+experimental/iterator string
+experimental/iterator string_view
+experimental/iterator tuple
+experimental/iterator typeinfo
experimental/iterator variant
experimental/iterator version
experimental/memory cstddef
@@ -415,7 +434,6 @@ fstream cstring
fstream ctime
fstream cwchar
fstream cwctype
-fstream filesystem
fstream format
fstream initializer_list
fstream iomanip
diff --git a/libcxx/test/libcxx/utilities/format/format.arguments/format.arg/arg_t.compile.pass.cpp b/libcxx/test/libcxx/utilities/format/format.arguments/format.arg/arg_t.compile.pass.cpp
index 88039f7f68f04f..8ecca81cdfe581 100644
--- a/libcxx/test/libcxx/utilities/format/format.arguments/format.arg/arg_t.compile.pass.cpp
+++ b/libcxx/test/libcxx/utilities/format/format.arguments/format.arg/arg_t.compile.pass.cpp
@@ -14,6 +14,7 @@
#include <format>
+#include <cstdint>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/libcxx/utilities/format/format.string/format.string.std/escaped_output.pass.cpp b/libcxx/test/libcxx/utilities/format/format.string/format.string.std/escaped_output.pass.cpp
index 298bbe6b0cb3b2..430495e1aba8ee 100644
--- a/libcxx/test/libcxx/utilities/format/format.string/format.string.std/escaped_output.pass.cpp
+++ b/libcxx/test/libcxx/utilities/format/format.string/format.string.std/escaped_output.pass.cpp
@@ -18,9 +18,10 @@
// assumptions of the size and speed optimizations are still valid.
#include <algorithm>
-#include <numeric>
-#include <format>
#include <cassert>
+#include <format>
+#include <functional>
+#include <numeric>
// Contains the entries for [format.string.escaped]/2.2.1.2.1
// CE is a Unicode encoding and C corresponds to a UCS scalar value whose
diff --git a/libcxx/test/libcxx/utilities/function.objects/func.require/bullet_1_2_3.pass.cpp b/libcxx/test/libcxx/utilities/function.objects/func.require/bullet_1_2_3.pass.cpp
index 6d3a9f3856411b..4d1010522f2fb9 100644
--- a/libcxx/test/libcxx/utilities/function.objects/func.require/bullet_1_2_3.pass.cpp
+++ b/libcxx/test/libcxx/utilities/function.objects/func.require/bullet_1_2_3.pass.cpp
@@ -56,8 +56,9 @@
// objects that are equally or less cv-qualified.
#include <functional>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "invoke_helpers.h"
diff --git a/libcxx/test/libcxx/utilities/function.objects/func.require/bullet_4_5_6.pass.cpp b/libcxx/test/libcxx/utilities/function.objects/func.require/bullet_4_5_6.pass.cpp
index 44b706cdfda357..0df59290824bb3 100644
--- a/libcxx/test/libcxx/utilities/function.objects/func.require/bullet_4_5_6.pass.cpp
+++ b/libcxx/test/libcxx/utilities/function.objects/func.require/bullet_4_5_6.pass.cpp
@@ -38,8 +38,9 @@
// 8) reference_wrapper's are properly unwrapped before invoking the function.
#include <functional>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "invoke_helpers.h"
diff --git a/libcxx/test/libcxx/utilities/memory/util.smartptr/util.smartptr.shared/function_type_default_deleter.verify.cpp b/libcxx/test/libcxx/utilities/memory/util.smartptr/util.smartptr.shared/function_type_default_deleter.verify.cpp
index 31bc53d3aac43b..26ecfe66e3e4dd 100644
--- a/libcxx/test/libcxx/utilities/memory/util.smartptr/util.smartptr.shared/function_type_default_deleter.verify.cpp
+++ b/libcxx/test/libcxx/utilities/memory/util.smartptr/util.smartptr.shared/function_type_default_deleter.verify.cpp
@@ -9,6 +9,7 @@
// UNSUPPORTED: c++03
#include <memory>
+#include <cstddef>
#include <type_traits>
template <int> struct Tag {};
diff --git a/libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp b/libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp
index 5d0c5586d9b3d5..89f08088921d59 100644
--- a/libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp
+++ b/libcxx/test/libcxx/utilities/meta/meta_base.pass.cpp
@@ -16,6 +16,7 @@ TEST_CLANG_DIAGNOSTIC_IGNORED("-Wprivate-header")
#include <__type_traits/negation.h>
#include <cassert>
#include <type_traits>
+#include <utility>
struct Bomb;
template <int N, class T = Bomb >
diff --git a/libcxx/test/libcxx/utilities/utility/__murmur2_or_cityhash.abi-v1.pass.cpp b/libcxx/test/libcxx/utilities/utility/__murmur2_or_cityhash.abi-v1.pass.cpp
index cdaaacad282eff..649ff18a863f60 100644
--- a/libcxx/test/libcxx/utilities/utility/__murmur2_or_cityhash.abi-v1.pass.cpp
+++ b/libcxx/test/libcxx/utilities/utility/__murmur2_or_cityhash.abi-v1.pass.cpp
@@ -16,6 +16,7 @@
// REQUIRES: libcpp-abi-version=1
#include <cassert>
+#include <cstdint>
#include <string>
#include <utility>
diff --git a/libcxx/test/std/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle_urng.pass.cpp b/libcxx/test/std/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle_urng.pass.cpp
index d5f162bced4161..f1ba7d49eed4fa 100644
--- a/libcxx/test/std/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle_urng.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.modifying.operations/alg.random.shuffle/random_shuffle_urng.pass.cpp
@@ -13,8 +13,9 @@
// UniformRandomNumberGenerator& g);
#include <algorithm>
-#include <random>
#include <cassert>
+#include <random>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/algorithms/alg.nonmodifying/mismatch/mismatch.pass.cpp b/libcxx/test/std/algorithms/alg.nonmodifying/mismatch/mismatch.pass.cpp
index dd37555ffcce59..2a51127a459146 100644
--- a/libcxx/test/std/algorithms/alg.nonmodifying/mismatch/mismatch.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.nonmodifying/mismatch/mismatch.pass.cpp
@@ -33,6 +33,8 @@
#include <algorithm>
#include <array>
#include <cassert>
+#include <functional>
+#include <utility>
#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.heap.operations/sort.heap/complexity.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.heap.operations/sort.heap/complexity.pass.cpp
index c7ab3626044748..7e7cc2f9502daf 100644
--- a/libcxx/test/std/algorithms/alg.sorting/alg.heap.operations/sort.heap/complexity.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.heap.operations/sort.heap/complexity.pass.cpp
@@ -16,6 +16,7 @@
#include <algorithm>
#include <cassert>
#include <random>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.heap.operations/sort.heap/ranges_sort_heap.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.heap.operations/sort.heap/ranges_sort_heap.pass.cpp
index ff69f39f6c06dc..e62410e3a948be 100644
--- a/libcxx/test/std/algorithms/alg.sorting/alg.heap.operations/sort.heap/ranges_sort_heap.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.heap.operations/sort.heap/ranges_sort_heap.pass.cpp
@@ -25,8 +25,10 @@
#include <array>
#include <concepts>
#include <functional>
+#include <memory>
#include <random>
#include <ranges>
+#include <vector>
#include "almost_satisfies_types.h"
#include "test_iterators.h"
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.merge/inplace_merge_comp.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.merge/inplace_merge_comp.pass.cpp
index ebff401cac297d..bcde2323ad1deb 100644
--- a/libcxx/test/std/algorithms/alg.sorting/alg.merge/inplace_merge_comp.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.merge/inplace_merge_comp.pass.cpp
@@ -15,9 +15,10 @@
// inplace_merge(Iter first, Iter middle, Iter last, Compare comp);
#include <algorithm>
+#include <cassert>
#include <functional>
#include <random>
-#include <cassert>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.merge/pstl.merge.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.merge/pstl.merge.pass.cpp
index ade15ce0b70854..099e77e6eab6d6 100644
--- a/libcxx/test/std/algorithms/alg.sorting/alg.merge/pstl.merge.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.merge/pstl.merge.pass.cpp
@@ -28,6 +28,7 @@
#include <algorithm>
#include <array>
#include <cassert>
+#include <functional>
#include <iterator>
#include <numeric>
#include <vector>
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.sort/sort/pstl.sort.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.sort/sort/pstl.sort.pass.cpp
index ecde9969001036..0724e746eab4af 100644
--- a/libcxx/test/std/algorithms/alg.sorting/alg.sort/sort/pstl.sort.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.sort/sort/pstl.sort.pass.cpp
@@ -21,6 +21,7 @@
#include <algorithm>
#include <cassert>
+#include <functional>
#include <numeric>
#include <random>
#include <vector>
diff --git a/libcxx/test/std/algorithms/alg.sorting/alg.sort/stable.sort/stable_sort.pass.cpp b/libcxx/test/std/algorithms/alg.sorting/alg.sort/stable.sort/stable_sort.pass.cpp
index 765e50e72d4aa1..4301d22027de85 100644
--- a/libcxx/test/std/algorithms/alg.sorting/alg.sort/stable.sort/stable_sort.pass.cpp
+++ b/libcxx/test/std/algorithms/alg.sorting/alg.sort/stable.sort/stable_sort.pass.cpp
@@ -18,6 +18,7 @@
#include <cassert>
#include <iterator>
#include <random>
+#include <vector>
#include "count_new.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/algorithms/ranges_robust_against_omitting_invoke.pass.cpp b/libcxx/test/std/algorithms/ranges_robust_against_omitting_invoke.pass.cpp
index 85fe6fbe10ef59..acd7640b418eb7 100644
--- a/libcxx/test/std/algorithms/ranges_robust_against_omitting_invoke.pass.cpp
+++ b/libcxx/test/std/algorithms/ranges_robust_against_omitting_invoke.pass.cpp
@@ -19,6 +19,8 @@
#include <initializer_list>
#include <iterator>
#include <ranges>
+#include <type_traits>
+
#include "test_macros.h"
struct Foo {
diff --git a/libcxx/test/std/algorithms/robust_against_proxy_iterators_lifetime_bugs.pass.cpp b/libcxx/test/std/algorithms/robust_against_proxy_iterators_lifetime_bugs.pass.cpp
index 0de22022526a6e..c89d6f5a229e8a 100644
--- a/libcxx/test/std/algorithms/robust_against_proxy_iterators_lifetime_bugs.pass.cpp
+++ b/libcxx/test/std/algorithms/robust_against_proxy_iterators_lifetime_bugs.pass.cpp
@@ -16,6 +16,8 @@
#include <cassert>
#include <random>
#include <set>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/algorithms/robust_re_difference_type.compile.pass.cpp b/libcxx/test/std/algorithms/robust_re_difference_type.compile.pass.cpp
index 8016cd7411509b..7d6be484301796 100644
--- a/libcxx/test/std/algorithms/robust_re_difference_type.compile.pass.cpp
+++ b/libcxx/test/std/algorithms/robust_re_difference_type.compile.pass.cpp
@@ -17,6 +17,7 @@
#include <cstddef>
#include <functional>
#include <iterator>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/bitwise_and_assign.pass.cpp b/libcxx/test/std/atomics/atomics.ref/bitwise_and_assign.pass.cpp
index 2be1e9962880c3..bfbd69f93845ea 100644
--- a/libcxx/test/std/atomics/atomics.ref/bitwise_and_assign.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/bitwise_and_assign.pass.cpp
@@ -14,6 +14,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/bitwise_or_assign.pass.cpp b/libcxx/test/std/atomics/atomics.ref/bitwise_or_assign.pass.cpp
index 5c22c8a2b2b6c1..e424da7167518b 100644
--- a/libcxx/test/std/atomics/atomics.ref/bitwise_or_assign.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/bitwise_or_assign.pass.cpp
@@ -14,6 +14,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/bitwise_xor_assign.pass.cpp b/libcxx/test/std/atomics/atomics.ref/bitwise_xor_assign.pass.cpp
index 4dc4fd307f581b..8a90d241e88e12 100644
--- a/libcxx/test/std/atomics/atomics.ref/bitwise_xor_assign.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/bitwise_xor_assign.pass.cpp
@@ -14,6 +14,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/fetch_add.pass.cpp b/libcxx/test/std/atomics/atomics.ref/fetch_add.pass.cpp
index 908a6879bd0663..8e2605fef9d319 100644
--- a/libcxx/test/std/atomics/atomics.ref/fetch_add.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/fetch_add.pass.cpp
@@ -16,6 +16,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/fetch_and.pass.cpp b/libcxx/test/std/atomics/atomics.ref/fetch_and.pass.cpp
index 8f0bec21fe7213..9d1fa846a9e66b 100644
--- a/libcxx/test/std/atomics/atomics.ref/fetch_and.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/fetch_and.pass.cpp
@@ -14,6 +14,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/fetch_or.pass.cpp b/libcxx/test/std/atomics/atomics.ref/fetch_or.pass.cpp
index 2045868fde425a..51500e3a62beae 100644
--- a/libcxx/test/std/atomics/atomics.ref/fetch_or.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/fetch_or.pass.cpp
@@ -11,9 +11,10 @@
// integral-type fetch_or(integral-type, memory_order = memory_order::seq_cst) const noexcept;
#include <atomic>
-#include <concepts>
#include <cassert>
+#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/fetch_sub.pass.cpp b/libcxx/test/std/atomics/atomics.ref/fetch_sub.pass.cpp
index 545604530ada1e..04def076a301f5 100644
--- a/libcxx/test/std/atomics/atomics.ref/fetch_sub.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/fetch_sub.pass.cpp
@@ -16,6 +16,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/fetch_xor.pass.cpp b/libcxx/test/std/atomics/atomics.ref/fetch_xor.pass.cpp
index aade87f961f1b3..35437cbba31358 100644
--- a/libcxx/test/std/atomics/atomics.ref/fetch_xor.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/fetch_xor.pass.cpp
@@ -11,9 +11,10 @@
// integral-type fetch_xor(integral-type, memory_order = memory_order::seq_cst) const noexcept;
#include <atomic>
-#include <concepts>
#include <cassert>
+#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/increment_decrement.pass.cpp b/libcxx/test/std/atomics/atomics.ref/increment_decrement.pass.cpp
index c84c89b4d2b4d3..f26a0bdf3663a5 100644
--- a/libcxx/test/std/atomics/atomics.ref/increment_decrement.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/increment_decrement.pass.cpp
@@ -17,6 +17,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/member_types.compile.pass.cpp b/libcxx/test/std/atomics/atomics.ref/member_types.compile.pass.cpp
index b085e209492f91..d0e0313434114a 100644
--- a/libcxx/test/std/atomics/atomics.ref/member_types.compile.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/member_types.compile.pass.cpp
@@ -23,6 +23,8 @@
// };
#include <atomic>
+#include <cstddef>
+#include <cstdint>
#include <type_traits>
#include "test_macros.h"
@@ -92,34 +94,34 @@ void testall() {
test<unsigned long>();
test<unsigned long long>();
// + any other types needed by the typedefs in the header <cstdint>
- test<int8_t>();
- test<int16_t>();
- test<int32_t>();
- test<int64_t>();
- test<int_fast8_t>();
- test<int_fast16_t>();
- test<int_fast32_t>();
- test<int_fast64_t>();
- test<int_least8_t>();
- test<int_least16_t>();
- test<int_least32_t>();
- test<int_least64_t>();
- test<intmax_t>();
- test<intptr_t>();
- test<uint8_t>();
- test<uint16_t>();
- test<uint32_t>();
- test<uint64_t>();
- test<uint_fast8_t>();
- test<uint_fast16_t>();
- test<uint_fast32_t>();
- test<uint_fast64_t>();
- test<uint_least8_t>();
- test<uint_least16_t>();
- test<uint_least32_t>();
- test<uint_least64_t>();
- test<uintmax_t>();
- test<uintptr_t>();
+ test<std::int8_t>();
+ test<std::int16_t>();
+ test<std::int32_t>();
+ test<std::int64_t>();
+ test<std::int_fast8_t>();
+ test<std::int_fast16_t>();
+ test<std::int_fast32_t>();
+ test<std::int_fast64_t>();
+ test<std::int_least8_t>();
+ test<std::int_least16_t>();
+ test<std::int_least32_t>();
+ test<std::int_least64_t>();
+ test<std::intmax_t>();
+ test<std::intptr_t>();
+ test<std::uint8_t>();
+ test<std::uint16_t>();
+ test<std::uint32_t>();
+ test<std::uint64_t>();
+ test<std::uint_fast8_t>();
+ test<std::uint_fast16_t>();
+ test<std::uint_fast32_t>();
+ test<std::uint_fast64_t>();
+ test<std::uint_least8_t>();
+ test<std::uint_least16_t>();
+ test<std::uint_least32_t>();
+ test<std::uint_least64_t>();
+ test<std::uintmax_t>();
+ test<std::uintptr_t>();
// Specialization for floating-point types
// + floating-point types
diff --git a/libcxx/test/std/atomics/atomics.ref/operator_minus_equals.pass.cpp b/libcxx/test/std/atomics/atomics.ref/operator_minus_equals.pass.cpp
index 571d626035fac6..502eff772ab768 100644
--- a/libcxx/test/std/atomics/atomics.ref/operator_minus_equals.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/operator_minus_equals.pass.cpp
@@ -16,6 +16,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.ref/operator_plus_equals.pass.cpp b/libcxx/test/std/atomics/atomics.ref/operator_plus_equals.pass.cpp
index de48ea56f57fff..1f287f6945bda9 100644
--- a/libcxx/test/std/atomics/atomics.ref/operator_plus_equals.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.ref/operator_plus_equals.pass.cpp
@@ -13,9 +13,10 @@
// T* operator+=(difference_type) const noexcept;
#include <atomic>
-#include <concepts>
#include <cassert>
+#include <concepts>
#include <type_traits>
+#include <utility>
#include "atomic_helpers.h"
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/assign.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/assign.pass.cpp
index 51085a0b1037e5..b3b90af0b49739 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/assign.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/assign.pass.cpp
@@ -15,6 +15,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "test_helper.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/exchange.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/exchange.pass.cpp
index 55aa6f5a701cc6..1e74165602d8e7 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/exchange.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/exchange.pass.cpp
@@ -15,6 +15,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "test_helper.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_add.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_add.pass.cpp
index 40a475ec38b723..c7a797171e0a7a 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_add.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_add.pass.cpp
@@ -24,6 +24,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include <vector>
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_sub.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_sub.pass.cpp
index 9e798a2a519ff0..00d43a61acc69c 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_sub.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/fetch_sub.pass.cpp
@@ -24,6 +24,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include <vector>
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/load.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/load.pass.cpp
index 55ddaab92f5a3c..2648b2914c1a5c 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/load.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/load.pass.cpp
@@ -11,10 +11,11 @@
// floating-point-type load(memory_order = memory_order::seq_cst) volatile noexcept;
// floating-point-type load(memory_order = memory_order::seq_cst) noexcept;
-#include <algorithm>
#include <atomic>
+#include <algorithm>
#include <cassert>
#include <concepts>
+#include <memory>
#include <ranges>
#include <type_traits>
#include <vector>
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.float.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.float.pass.cpp
index 415709a6807e11..268f0343f3bee8 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.float.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.float.pass.cpp
@@ -15,6 +15,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include "test_helper.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.minus_equals.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.minus_equals.pass.cpp
index 732bd4d7e5dc2b..5dddb7c5472e17 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.minus_equals.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.minus_equals.pass.cpp
@@ -19,6 +19,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include <vector>
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.plus_equals.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.plus_equals.pass.cpp
index 1821aca42c7988..cf7b494a3a800f 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.plus_equals.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/operator.plus_equals.pass.cpp
@@ -19,6 +19,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include <vector>
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/wait.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/wait.pass.cpp
index df487cec880896..500bcc879efca8 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/wait.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/atomics.types.float/wait.pass.cpp
@@ -16,6 +16,7 @@
#include <cassert>
#include <concepts>
#include <type_traits>
+#include <utility>
#include <vector>
#include "test_helper.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/cstdint_typedefs.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/cstdint_typedefs.pass.cpp
index 0867007b36f1bc..fda0f5f6be0d63 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/cstdint_typedefs.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/cstdint_typedefs.pass.cpp
@@ -34,8 +34,9 @@
// typedef atomic<uintmax_t> atomic_uintmax_t;
#include <atomic>
-#include <type_traits>
+#include <cstddef>
#include <cstdint>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/atomics.types.generic/integral_typedefs.pass.cpp b/libcxx/test/std/atomics/atomics.types.generic/integral_typedefs.pass.cpp
index 5e52cdec28cafd..fa13ba1d9560a3 100644
--- a/libcxx/test/std/atomics/atomics.types.generic/integral_typedefs.pass.cpp
+++ b/libcxx/test/std/atomics/atomics.types.generic/integral_typedefs.pass.cpp
@@ -37,6 +37,7 @@
// typedef atomic<uint64_t> atomic_uint64_t;
#include <atomic>
+#include <cstdint>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/stdatomic.h.syn/types.compile.pass.cpp b/libcxx/test/std/atomics/stdatomic.h.syn/types.compile.pass.cpp
index 29881891ffd11e..85d93379878359 100644
--- a/libcxx/test/std/atomics/stdatomic.h.syn/types.compile.pass.cpp
+++ b/libcxx/test/std/atomics/stdatomic.h.syn/types.compile.pass.cpp
@@ -114,6 +114,8 @@
// using std::atomic_signal_fence // see below
#include <stdatomic.h>
+#include <cstddef>
+#include <cstdint>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/atomics/types.pass.cpp b/libcxx/test/std/atomics/types.pass.cpp
index cebf66ee7f1af0..33512c037804f8 100644
--- a/libcxx/test/std/atomics/types.pass.cpp
+++ b/libcxx/test/std/atomics/types.pass.cpp
@@ -19,6 +19,7 @@
#include <atomic>
#include <chrono>
+#include <cstdint>
#include <memory>
#include <type_traits>
diff --git a/libcxx/test/std/containers/associative/map/map.modifiers/insert_or_assign.pass.cpp b/libcxx/test/std/containers/associative/map/map.modifiers/insert_or_assign.pass.cpp
index 633d9acca162cf..b865888eaf7958 100644
--- a/libcxx/test/std/containers/associative/map/map.modifiers/insert_or_assign.pass.cpp
+++ b/libcxx/test/std/containers/associative/map/map.modifiers/insert_or_assign.pass.cpp
@@ -23,6 +23,7 @@
#include <map>
#include <cassert>
+#include <iterator>
#include <tuple>
#include "test_macros.h"
diff --git a/libcxx/test/std/containers/associative/map/map.modifiers/try.emplace.pass.cpp b/libcxx/test/std/containers/associative/map/map.modifiers/try.emplace.pass.cpp
index cfa0921d399140..3f7a83c2b5418b 100644
--- a/libcxx/test/std/containers/associative/map/map.modifiers/try.emplace.pass.cpp
+++ b/libcxx/test/std/containers/associative/map/map.modifiers/try.emplace.pass.cpp
@@ -23,6 +23,7 @@
#include <map>
#include <cassert>
+#include <iterator>
#include <tuple>
#include "test_macros.h"
diff --git a/libcxx/test/std/containers/associative/multiset/multiset.cons/copy.pass.cpp b/libcxx/test/std/containers/associative/multiset/multiset.cons/copy.pass.cpp
index fc1a3f57a602a5..9d643199e6b9a7 100644
--- a/libcxx/test/std/containers/associative/multiset/multiset.cons/copy.pass.cpp
+++ b/libcxx/test/std/containers/associative/multiset/multiset.cons/copy.pass.cpp
@@ -14,6 +14,7 @@
#include <set>
#include <cassert>
+#include <iterator>
#include "test_macros.h"
#include "../../../test_compare.h"
diff --git a/libcxx/test/std/containers/associative/multiset/multiset.cons/copy_alloc.pass.cpp b/libcxx/test/std/containers/associative/multiset/multiset.cons/copy_alloc.pass.cpp
index 9b6c3d73087814..ece846c63ec8e6 100644
--- a/libcxx/test/std/containers/associative/multiset/multiset.cons/copy_alloc.pass.cpp
+++ b/libcxx/test/std/containers/associative/multiset/multiset.cons/copy_alloc.pass.cpp
@@ -14,6 +14,7 @@
#include <set>
#include <cassert>
+#include <iterator>
#include "test_macros.h"
#include "../../../test_compare.h"
diff --git a/libcxx/test/std/containers/associative/multiset/multiset.cons/copy_assign.pass.cpp b/libcxx/test/std/containers/associative/multiset/multiset.cons/copy_assign.pass.cpp
index 5a048b05cc4e83..6835020a982232 100644
--- a/libcxx/test/std/containers/associative/multiset/multiset.cons/copy_assign.pass.cpp
+++ b/libcxx/test/std/containers/associative/multiset/multiset.cons/copy_assign.pass.cpp
@@ -14,6 +14,7 @@
#include <set>
#include <cassert>
+#include <iterator>
#include "test_macros.h"
#include "../../../test_compare.h"
diff --git a/libcxx/test/std/containers/associative/multiset/multiset.cons/initializer_list_compare.pass.cpp b/libcxx/test/std/containers/associative/multiset/multiset.cons/initializer_list_compare.pass.cpp
index 5ff3200e1c4025..4abbddb8c15d4f 100644
--- a/libcxx/test/std/containers/associative/multiset/multiset.cons/initializer_list_compare.pass.cpp
+++ b/libcxx/test/std/containers/associative/multiset/multiset.cons/initializer_list_compare.pass.cpp
@@ -16,6 +16,8 @@
#include <set>
#include <cassert>
+#include <iterator>
+
#include "test_macros.h"
#include "../../../test_compare.h"
diff --git a/libcxx/test/std/containers/associative/multiset/multiset.cons/initializer_list_compare_alloc.pass.cpp b/libcxx/test/std/containers/associative/multiset/multiset.cons/initializer_list_compare_alloc.pass.cpp
index 9c69495856bba7..8234fe3ab7fee0 100644
--- a/libcxx/test/std/containers/associative/multiset/multiset.cons/initializer_list_compare_alloc.pass.cpp
+++ b/libcxx/test/std/containers/associative/multiset/multiset.cons/initializer_list_compare_alloc.pass.cpp
@@ -16,6 +16,8 @@
#include <set>
#include <cassert>
+#include <iterator>
+
#include "test_macros.h"
#include "../../../test_compare.h"
#include "test_allocator.h"
diff --git a/libcxx/test/std/containers/associative/set/set.cons/copy.pass.cpp b/libcxx/test/std/containers/associative/set/set.cons/copy.pass.cpp
index 2ce9c9702ad067..1d27cfbd3e722d 100644
--- a/libcxx/test/std/containers/associative/set/set.cons/copy.pass.cpp
+++ b/libcxx/test/std/containers/associative/set/set.cons/copy.pass.cpp
@@ -14,6 +14,7 @@
#include <set>
#include <cassert>
+#include <iterator>
#include "test_macros.h"
#include "../../../test_compare.h"
diff --git a/libcxx/test/std/containers/associative/set/set.cons/copy_alloc.pass.cpp b/libcxx/test/std/containers/associative/set/set.cons/copy_alloc.pass.cpp
index 3fe34bcbd53693..9d988d84a3795c 100644
--- a/libcxx/test/std/containers/associative/set/set.cons/copy_alloc.pass.cpp
+++ b/libcxx/test/std/containers/associative/set/set.cons/copy_alloc.pass.cpp
@@ -14,6 +14,7 @@
#include <set>
#include <cassert>
+#include <iterator>
#include "test_macros.h"
#include "../../../test_compare.h"
diff --git a/libcxx/test/std/containers/associative/set/set.cons/copy_assign.pass.cpp b/libcxx/test/std/containers/associative/set/set.cons/copy_assign.pass.cpp
index 1ddcd85db73395..7d35ab62effa6a 100644
--- a/libcxx/test/std/containers/associative/set/set.cons/copy_assign.pass.cpp
+++ b/libcxx/test/std/containers/associative/set/set.cons/copy_assign.pass.cpp
@@ -14,6 +14,7 @@
#include <set>
#include <cassert>
+#include <iterator>
#include "test_macros.h"
#include "../../../test_compare.h"
diff --git a/libcxx/test/std/containers/associative/set/set.cons/initializer_list_compare.pass.cpp b/libcxx/test/std/containers/associative/set/set.cons/initializer_list_compare.pass.cpp
index 2a00aaede1aa27..f097ac85495562 100644
--- a/libcxx/test/std/containers/associative/set/set.cons/initializer_list_compare.pass.cpp
+++ b/libcxx/test/std/containers/associative/set/set.cons/initializer_list_compare.pass.cpp
@@ -16,6 +16,8 @@
#include <set>
#include <cassert>
+#include <iterator>
+
#include "test_macros.h"
#include "../../../test_compare.h"
diff --git a/libcxx/test/std/containers/associative/set/set.cons/initializer_list_compare_alloc.pass.cpp b/libcxx/test/std/containers/associative/set/set.cons/initializer_list_compare_alloc.pass.cpp
index 9f9234024c05cb..46785ef3310c1b 100644
--- a/libcxx/test/std/containers/associative/set/set.cons/initializer_list_compare_alloc.pass.cpp
+++ b/libcxx/test/std/containers/associative/set/set.cons/initializer_list_compare_alloc.pass.cpp
@@ -17,6 +17,8 @@
#include <set>
#include <cassert>
+#include <iterator>
+
#include "test_macros.h"
#include "../../../test_compare.h"
#include "test_allocator.h"
diff --git a/libcxx/test/std/containers/container.adaptors/priority.queue/priqueue.cons/dtor_noexcept.pass.cpp b/libcxx/test/std/containers/container.adaptors/priority.queue/priqueue.cons/dtor_noexcept.pass.cpp
index 71e806cdd3cea5..147e70ef27b959 100644
--- a/libcxx/test/std/containers/container.adaptors/priority.queue/priqueue.cons/dtor_noexcept.pass.cpp
+++ b/libcxx/test/std/containers/container.adaptors/priority.queue/priqueue.cons/dtor_noexcept.pass.cpp
@@ -14,6 +14,7 @@
#include <queue>
#include <cassert>
+#include <type_traits>
#include "test_macros.h"
#include "MoveOnly.h"
diff --git a/libcxx/test/std/containers/container.adaptors/queue/queue.cons/dtor_noexcept.pass.cpp b/libcxx/test/std/containers/container.adaptors/queue/queue.cons/dtor_noexcept.pass.cpp
index 3486604006400c..0d53f47961f84a 100644
--- a/libcxx/test/std/containers/container.adaptors/queue/queue.cons/dtor_noexcept.pass.cpp
+++ b/libcxx/test/std/containers/container.adaptors/queue/queue.cons/dtor_noexcept.pass.cpp
@@ -14,6 +14,7 @@
#include <queue>
#include <cassert>
+#include <type_traits>
#include "test_macros.h"
#include "MoveOnly.h"
diff --git a/libcxx/test/std/containers/container.adaptors/stack/stack.cons/dtor_noexcept.pass.cpp b/libcxx/test/std/containers/container.adaptors/stack/stack.cons/dtor_noexcept.pass.cpp
index a73a04b065cbf2..b6015c1e1ac310 100644
--- a/libcxx/test/std/containers/container.adaptors/stack/stack.cons/dtor_noexcept.pass.cpp
+++ b/libcxx/test/std/containers/container.adaptors/stack/stack.cons/dtor_noexcept.pass.cpp
@@ -14,6 +14,7 @@
#include <stack>
#include <cassert>
+#include <type_traits>
#include "test_macros.h"
#include "MoveOnly.h"
diff --git a/libcxx/test/std/containers/views/mdspan/layout_left/properties.pass.cpp b/libcxx/test/std/containers/views/mdspan/layout_left/properties.pass.cpp
index cca1c65f088f17..19f523824cfc48 100644
--- a/libcxx/test/std/containers/views/mdspan/layout_left/properties.pass.cpp
+++ b/libcxx/test/std/containers/views/mdspan/layout_left/properties.pass.cpp
@@ -31,6 +31,7 @@
#include <concepts>
#include <span> // dynamic_extent
#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/containers/views/mdspan/layout_right/properties.pass.cpp b/libcxx/test/std/containers/views/mdspan/layout_right/properties.pass.cpp
index 120cefd619a3a7..674a7ac98cbf7b 100644
--- a/libcxx/test/std/containers/views/mdspan/layout_right/properties.pass.cpp
+++ b/libcxx/test/std/containers/views/mdspan/layout_right/properties.pass.cpp
@@ -31,6 +31,7 @@
#include <concepts>
#include <span> // dynamic_extent
#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/containers/views/mdspan/layout_stride/deduction.pass.cpp b/libcxx/test/std/containers/views/mdspan/layout_stride/deduction.pass.cpp
index 45e2a1c10d6ff4..ca88a9f8e0440e 100644
--- a/libcxx/test/std/containers/views/mdspan/layout_stride/deduction.pass.cpp
+++ b/libcxx/test/std/containers/views/mdspan/layout_stride/deduction.pass.cpp
@@ -17,6 +17,7 @@
#include <cstdint>
#include <span> // dynamic_extent
#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/depr/depr.c.headers/math_h.pass.cpp b/libcxx/test/std/depr/depr.c.headers/math_h.pass.cpp
index 0f47a513ea0e86..189e9d890e7784 100644
--- a/libcxx/test/std/depr/depr.c.headers/math_h.pass.cpp
+++ b/libcxx/test/std/depr/depr.c.headers/math_h.pass.cpp
@@ -103,7 +103,7 @@ Ambiguous scalbn(Ambiguous, Ambiguous){ return Ambiguous(); }
Ambiguous tgamma(Ambiguous){ return Ambiguous(); }
Ambiguous trunc(Ambiguous){ return Ambiguous(); }
-template <class T, class = decltype(::abs(std::declval<T>()))>
+template <class T, class = decltype(::abs(T()))>
std::true_type has_abs_imp(int);
template <class T>
std::false_type has_abs_imp(...);
diff --git a/libcxx/test/std/depr/depr.c.headers/stdlib_h.pass.cpp b/libcxx/test/std/depr/depr.c.headers/stdlib_h.pass.cpp
index ee70ed0c34b948..587c6b6e10ddb6 100644
--- a/libcxx/test/std/depr/depr.c.headers/stdlib_h.pass.cpp
+++ b/libcxx/test/std/depr/depr.c.headers/stdlib_h.pass.cpp
@@ -9,8 +9,9 @@
// test <stdlib.h>
#include <stdlib.h>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/diagnostics/syserr/syserr.hash/error_code.pass.cpp b/libcxx/test/std/diagnostics/syserr/syserr.hash/error_code.pass.cpp
index 2e07d090d23b43..131193380e58c9 100644
--- a/libcxx/test/std/diagnostics/syserr/syserr.hash/error_code.pass.cpp
+++ b/libcxx/test/std/diagnostics/syserr/syserr.hash/error_code.pass.cpp
@@ -6,16 +6,15 @@
//
//===----------------------------------------------------------------------===//
-// <functional>
-
-// template <class T>
-// struct hash
-// {
-// size_t operator()(T val) const;
-// };
+// <system_error>
+//
+// template <>
+// struct hash<error_code>;
#include <system_error>
#include <cassert>
+#include <cstddef>
+#include <functional>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/diagnostics/syserr/syserr.hash/error_condition.pass.cpp b/libcxx/test/std/diagnostics/syserr/syserr.hash/error_condition.pass.cpp
index bf016e1e55837b..0ecb30d11e3d81 100644
--- a/libcxx/test/std/diagnostics/syserr/syserr.hash/error_condition.pass.cpp
+++ b/libcxx/test/std/diagnostics/syserr/syserr.hash/error_condition.pass.cpp
@@ -6,16 +6,15 @@
//
//===----------------------------------------------------------------------===//
-// <functional>
-
-// template <class T>
-// struct hash
-// {
-// size_t operator()(T val) const;
-// };
+// <system_error>
+//
+// template <>
+// struct hash<error_condition>;
#include <system_error>
#include <cassert>
+#include <cstddef>
+#include <functional>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/experimental/memory/memory.observer.ptr/hash.pass.cpp b/libcxx/test/std/experimental/memory/memory.observer.ptr/hash.pass.cpp
index fff5f9bae07337..edf38e5344bac1 100644
--- a/libcxx/test/std/experimental/memory/memory.observer.ptr/hash.pass.cpp
+++ b/libcxx/test/std/experimental/memory/memory.observer.ptr/hash.pass.cpp
@@ -17,6 +17,7 @@
#include <experimental/memory>
#include <cassert>
+#include <functional>
#include "poisoned_hash_helper.h"
diff --git a/libcxx/test/std/experimental/simd/simd.reference/reference_arith_operators.pass.cpp b/libcxx/test/std/experimental/simd/simd.reference/reference_arith_operators.pass.cpp
index 2a4a1346db0bce..43fc48557c49cc 100644
--- a/libcxx/test/std/experimental/simd/simd.reference/reference_arith_operators.pass.cpp
+++ b/libcxx/test/std/experimental/simd/simd.reference/reference_arith_operators.pass.cpp
@@ -17,8 +17,10 @@
// template<class U> reference/=(U&& x) && noexcept;
// template<class U> reference%=(U&& x) && noexcept;
-#include "../test_utils.h"
#include <experimental/simd>
+#include <functional>
+
+#include "../test_utils.h"
namespace ex = std::experimental::parallelism_v2;
diff --git a/libcxx/test/std/experimental/simd/simd.reference/reference_bitwise_operators.pass.cpp b/libcxx/test/std/experimental/simd/simd.reference/reference_bitwise_operators.pass.cpp
index 340b92c4006dc6..b3c9b953c74483 100644
--- a/libcxx/test/std/experimental/simd/simd.reference/reference_bitwise_operators.pass.cpp
+++ b/libcxx/test/std/experimental/simd/simd.reference/reference_bitwise_operators.pass.cpp
@@ -17,8 +17,10 @@
// template<class U> reference<<=(U&& x) && noexcept;
// template<class U> reference>>=(U&& x) && noexcept;
-#include "../test_utils.h"
#include <experimental/simd>
+#include <functional>
+
+#include "../test_utils.h"
namespace ex = std::experimental::parallelism_v2;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign.pass.cpp
index 8614ff87966fdb..17040bcb127799 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign.pass.cpp
@@ -13,9 +13,11 @@
// template <class U> propagate_const& propagate_const::operator=(propagate_const<U>&&);
#include <experimental/propagate_const>
+#include <cassert>
+#include <utility>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign_convertible.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign_convertible.pass.cpp
index 2e4d1e29bd5c65..d22f3035aee38c 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign_convertible.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign_convertible.pass.cpp
@@ -13,9 +13,11 @@
// template <class U> propagate_const& propagate_const::operator=(propagate_const<U>&&);
#include <experimental/propagate_const>
+#include <cassert>
+#include <utility>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign_convertible_propagate_const.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign_convertible_propagate_const.pass.cpp
index d587cb041acd37..a55ef74bb15e3c 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign_convertible_propagate_const.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.assignment/move_assign_convertible_propagate_const.pass.cpp
@@ -13,9 +13,11 @@
// template <class U> constexpr propagate_const& operator=(propagate_const<_Up>&& pu);
#include <experimental/propagate_const>
+#include <cassert>
+#include <utility>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.ctors/convertible_propagate_const.move_ctor.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.ctors/convertible_propagate_const.move_ctor.pass.cpp
index 81d874fb07d629..9c33d01f80d814 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.ctors/convertible_propagate_const.move_ctor.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.ctors/convertible_propagate_const.move_ctor.pass.cpp
@@ -13,9 +13,11 @@
// template <class U> constexpr propagate_const(propagate_const<_Up>&& pu);
#include <experimental/propagate_const>
+#include <cassert>
+#include <utility>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.ctors/move_ctor.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.ctors/move_ctor.pass.cpp
index dbf2ef0eaa3db4..a282897f701b6a 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.ctors/move_ctor.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.class/propagate_const.ctors/move_ctor.pass.cpp
@@ -13,9 +13,11 @@
// propagate_const(propagate_const&&)=default;
#include <experimental/propagate_const>
+#include <cassert>
+#include <utility>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/hash.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/hash.pass.cpp
index 64f939c7cbc1b3..fb0c607b73de0a 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/hash.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/hash.pass.cpp
@@ -13,9 +13,12 @@
// template <class T> struct hash<experimental::fundamentals_v2::propagate_const<T>>;
#include <experimental/propagate_const>
+#include <cassert>
+#include <cstddef>
+#include <functional>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/equal_to.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/equal_to.pass.cpp
index 16bb27e7cba5f4..477c9401d26227 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/equal_to.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/equal_to.pass.cpp
@@ -13,9 +13,11 @@
// template <class T> struct equal_to<experimental::fundamentals_v2::propagate_const<T>>;
#include <experimental/propagate_const>
+#include <cassert>
+#include <functional>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/greater.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/greater.pass.cpp
index ba104b5a21913d..3d0c0634c7bfb9 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/greater.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/greater.pass.cpp
@@ -13,9 +13,11 @@
// template <class T> struct greater<experimental::fundamentals_v2::propagate_const<T>>;
#include <experimental/propagate_const>
+#include <cassert>
+#include <functional>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/greater_equal.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/greater_equal.pass.cpp
index d256a4ad0514e8..b72fcd7142a59f 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/greater_equal.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/greater_equal.pass.cpp
@@ -13,9 +13,11 @@
// template <class T> struct greater_equal<experimental::fundamentals_v2::propagate_const<T>>;
#include <experimental/propagate_const>
+#include <cassert>
+#include <functional>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/less.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/less.pass.cpp
index c723be4d4473a1..0b81ecb681e656 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/less.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/less.pass.cpp
@@ -13,9 +13,11 @@
// template <class T> struct less<experimental::fundamentals_v2::propagate_const<T>>;
#include <experimental/propagate_const>
+#include <cassert>
+#include <functional>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/less_equal.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/less_equal.pass.cpp
index 1960b3f4ddb5f7..7b125a26d93266 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/less_equal.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/less_equal.pass.cpp
@@ -13,9 +13,11 @@
// template <class T> struct less_equal<experimental::fundamentals_v2::propagate_const<T>>;
#include <experimental/propagate_const>
+#include <cassert>
+#include <functional>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/not_equal_to.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/not_equal_to.pass.cpp
index 95869e7a073bec..6b3ccbc9bd5663 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/not_equal_to.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.comparison_function_objects/not_equal_to.pass.cpp
@@ -13,9 +13,11 @@
// template <class T> struct not_equal_to<experimental::fundamentals_v2::propagate_const<T>>;
#include <experimental/propagate_const>
+#include <cassert>
+#include <functional>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/equal.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/equal.pass.cpp
index 0c1925390133dd..cd9ff5634dc712 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/equal.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/equal.pass.cpp
@@ -15,9 +15,11 @@
// template <class T> constexpr bool operator==(const propagate_const<T>& x, const T& y);
#include <experimental/propagate_const>
+#include <cassert>
+#include <cstddef>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
using std::nullptr_t;
diff --git a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/not_equal.pass.cpp b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/not_equal.pass.cpp
index a3b85b7cdd7c8e..b22a59632637bb 100644
--- a/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/not_equal.pass.cpp
+++ b/libcxx/test/std/experimental/utilities/propagate_const/propagate_const.nonmembers/propagate_const.relops/not_equal.pass.cpp
@@ -15,9 +15,11 @@
// template <class T> constexpr bool operator!=(const propagate_const<T>& x, const T& y);
#include <experimental/propagate_const>
+#include <cassert>
+#include <cstddef>
+
#include "test_macros.h"
#include "propagate_const_helpers.h"
-#include <cassert>
using std::experimental::propagate_const;
using std::nullptr_t;
diff --git a/libcxx/test/std/iterators/iterator.primitives/iterator.basic/iterator.pass.cpp b/libcxx/test/std/iterators/iterator.primitives/iterator.basic/iterator.pass.cpp
index c04f15e60b925b..d588776d5d3df5 100644
--- a/libcxx/test/std/iterators/iterator.primitives/iterator.basic/iterator.pass.cpp
+++ b/libcxx/test/std/iterators/iterator.primitives/iterator.basic/iterator.pass.cpp
@@ -22,6 +22,7 @@
// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
#include <iterator>
+#include <cstddef>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_pointer.pass.cpp b/libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_pointer.pass.cpp
index 7090a30a80f9ec..eef05b6a0273e1 100644
--- a/libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_pointer.pass.cpp
+++ b/libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_pointer.pass.cpp
@@ -19,6 +19,7 @@
// };
#include <iterator>
+#include <cstddef>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_volatile_pointer.pass.cpp b/libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_volatile_pointer.pass.cpp
index e410d3d57470e3..0138e368c15f68 100644
--- a/libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_volatile_pointer.pass.cpp
+++ b/libcxx/test/std/iterators/iterator.primitives/iterator.traits/const_volatile_pointer.pass.cpp
@@ -12,6 +12,7 @@
// struct iterator_traits<const T*>
#include <iterator>
+#include <cstddef>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/iterators/iterator.primitives/iterator.traits/pointer.pass.cpp b/libcxx/test/std/iterators/iterator.primitives/iterator.traits/pointer.pass.cpp
index 4cf214a8be87dd..a0ce256fb58c7c 100644
--- a/libcxx/test/std/iterators/iterator.primitives/iterator.traits/pointer.pass.cpp
+++ b/libcxx/test/std/iterators/iterator.primitives/iterator.traits/pointer.pass.cpp
@@ -20,6 +20,7 @@
// };
#include <iterator>
+#include <cstddef>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/iterators/iterator.primitives/iterator.traits/volatile_pointer.pass.cpp b/libcxx/test/std/iterators/iterator.primitives/iterator.traits/volatile_pointer.pass.cpp
index c6d5dfc74c432d..6ae502e8c8605e 100644
--- a/libcxx/test/std/iterators/iterator.primitives/iterator.traits/volatile_pointer.pass.cpp
+++ b/libcxx/test/std/iterators/iterator.primitives/iterator.traits/volatile_pointer.pass.cpp
@@ -12,6 +12,7 @@
// struct iterator_traits<const T*>
#include <iterator>
+#include <cstddef>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/iterators/iterator.requirements/iterator.assoc.types/incrementable.traits/incrementable_traits.compile.pass.cpp b/libcxx/test/std/iterators/iterator.requirements/iterator.assoc.types/incrementable.traits/incrementable_traits.compile.pass.cpp
index b1fe9e370a1cb5..8413f912e57620 100644
--- a/libcxx/test/std/iterators/iterator.requirements/iterator.assoc.types/incrementable.traits/incrementable_traits.compile.pass.cpp
+++ b/libcxx/test/std/iterators/iterator.requirements/iterator.assoc.types/incrementable.traits/incrementable_traits.compile.pass.cpp
@@ -14,6 +14,7 @@
#include <iterator>
#include <concepts>
+#include <cstddef>
#include "test_macros.h"
diff --git a/libcxx/test/std/iterators/iterator.requirements/iterator.concepts/iterator.concept.sentinel/sentinel_for.compile.pass.cpp b/libcxx/test/std/iterators/iterator.requirements/iterator.concepts/iterator.concept.sentinel/sentinel_for.compile.pass.cpp
index 368825664e7db2..d60b0b7faa7ba3 100644
--- a/libcxx/test/std/iterators/iterator.requirements/iterator.concepts/iterator.concept.sentinel/sentinel_for.compile.pass.cpp
+++ b/libcxx/test/std/iterators/iterator.requirements/iterator.concepts/iterator.concept.sentinel/sentinel_for.compile.pass.cpp
@@ -12,6 +12,7 @@
// concept sentinel_for;
#include <iterator>
+#include <cstddef>
static_assert(std::sentinel_for<int*, int*>);
static_assert(!std::sentinel_for<int*, long*>);
diff --git a/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.cmp/sfinae.compile.pass.cpp b/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.cmp/sfinae.compile.pass.cpp
index 8ead39231c0ba5..ca3518dfb6388d 100644
--- a/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.cmp/sfinae.compile.pass.cpp
+++ b/libcxx/test/std/iterators/predef.iterators/reverse.iterators/reverse.iter.cmp/sfinae.compile.pass.cpp
@@ -43,6 +43,7 @@
#include <iterator>
#include <cassert>
+#include <cstddef>
#include "test_macros.h"
diff --git a/libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable.compile.pass.cpp b/libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable.compile.pass.cpp
index d1114e540052f9..0332f3150aa7c5 100644
--- a/libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable.compile.pass.cpp
+++ b/libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable.compile.pass.cpp
@@ -12,6 +12,7 @@
// concept three_way_comparable = // see below
#include <compare>
+#include <cstddef>
#include "compare_types.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable_with.compile.pass.cpp b/libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable_with.compile.pass.cpp
index 50d9722aa29c03..aa2ab1c0e9ef1a 100644
--- a/libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable_with.compile.pass.cpp
+++ b/libcxx/test/std/language.support/cmp/cmp.concept/three_way_comparable_with.compile.pass.cpp
@@ -12,6 +12,7 @@
// concept three_way_comparable_with = // see below
#include <compare>
+#include <cstddef>
#include "compare_types.h"
diff --git a/libcxx/test/std/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.pass.cpp b/libcxx/test/std/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.pass.cpp
index 852424f966cfc4..521561cd6a2cdc 100644
--- a/libcxx/test/std/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.pass.cpp
+++ b/libcxx/test/std/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/assign.pass.cpp
@@ -16,8 +16,9 @@
// coroutine_handle& operator=(nullptr_t) noexcept
#include <coroutine>
-#include <type_traits>
#include <cassert>
+#include <cstddef>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.pass.cpp b/libcxx/test/std/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.pass.cpp
index fd078a52fedc13..8b5057880de9bf 100644
--- a/libcxx/test/std/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.pass.cpp
+++ b/libcxx/test/std/language.support/support.coroutines/coroutine.handle/coroutine.handle.con/construct.pass.cpp
@@ -17,8 +17,9 @@
// constexpr coroutine_handle(nullptr_t) noexcept
#include <coroutine>
-#include <type_traits>
#include <cassert>
+#include <cstddef>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/language.support/support.dynamic/destroying_delete_t_declaration.pass.cpp b/libcxx/test/std/language.support/support.dynamic/destroying_delete_t_declaration.pass.cpp
index 1270853a1ccabf..6835246c3bcc0c 100644
--- a/libcxx/test/std/language.support/support.dynamic/destroying_delete_t_declaration.pass.cpp
+++ b/libcxx/test/std/language.support/support.dynamic/destroying_delete_t_declaration.pass.cpp
@@ -22,6 +22,8 @@
#include <new>
#include <cassert>
+#include <type_traits>
+
#include "test_macros.h"
#include "test_convertible.h"
diff --git a/libcxx/test/std/language.support/support.runtime/cstdlib.pass.cpp b/libcxx/test/std/language.support/support.runtime/cstdlib.pass.cpp
index 823417f8a418eb..a1f7e1143a1e9b 100644
--- a/libcxx/test/std/language.support/support.runtime/cstdlib.pass.cpp
+++ b/libcxx/test/std/language.support/support.runtime/cstdlib.pass.cpp
@@ -9,8 +9,9 @@
// test <cstdlib>
#include <cstdlib>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/language.support/support.types/nullptr_t.pass.cpp b/libcxx/test/std/language.support/support.types/nullptr_t.pass.cpp
index 768cf6656fe827..2536be8c8b6640 100644
--- a/libcxx/test/std/language.support/support.types/nullptr_t.pass.cpp
+++ b/libcxx/test/std/language.support/support.types/nullptr_t.pass.cpp
@@ -7,8 +7,9 @@
//===----------------------------------------------------------------------===//
#include <cstddef>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/library/description/conventions/customization.point.object/niebloid.compile.pass.cpp b/libcxx/test/std/library/description/conventions/customization.point.object/niebloid.compile.pass.cpp
index b26b3970563436..5a2ee189641c74 100644
--- a/libcxx/test/std/library/description/conventions/customization.point.object/niebloid.compile.pass.cpp
+++ b/libcxx/test/std/library/description/conventions/customization.point.object/niebloid.compile.pass.cpp
@@ -14,12 +14,14 @@
#include <algorithm>
#include <concepts>
+#include <functional>
#include <iterator>
#include <memory>
#include <random>
#include <ranges>
#include <type_traits>
#include <utility>
+
#include "test_macros.h"
// Niebloids, unlike CPOs, are *not* required to be semiregular or even to have
diff --git a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp
index 90dd81885ac21c..a40c602fb0fc47 100644
--- a/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp
+++ b/libcxx/test/std/localization/locales/locale.convenience/conversions/conversions.string/ctor_codecvt.pass.cpp
@@ -20,8 +20,9 @@
// XFAIL: no-wide-characters
#include <locale>
-#include <codecvt>
#include <cassert>
+#include <codecvt>
+#include <type_traits>
#include "test_macros.h"
#if TEST_STD_VER >= 11
diff --git a/libcxx/test/std/numerics/c.math/cmath.pass.cpp b/libcxx/test/std/numerics/c.math/cmath.pass.cpp
index 34c30fb998f474..fc3dcfd7b48347 100644
--- a/libcxx/test/std/numerics/c.math/cmath.pass.cpp
+++ b/libcxx/test/std/numerics/c.math/cmath.pass.cpp
@@ -12,11 +12,12 @@
// <cmath>
-#include <array>
#include <cmath>
+#include <array>
+#include <cassert>
#include <limits>
#include <type_traits>
-#include <cassert>
+#include <utility>
#include "fp_compare.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.adapt/rand.adapt.disc/result_type.pass.cpp b/libcxx/test/std/numerics/rand/rand.adapt/rand.adapt.disc/result_type.pass.cpp
index 469d3803795781..e712953c52f9b4 100644
--- a/libcxx/test/std/numerics/rand/rand.adapt/rand.adapt.disc/result_type.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.adapt/rand.adapt.disc/result_type.pass.cpp
@@ -16,6 +16,7 @@
// typedef typename Engine::result_type result_type;
#include <random>
+#include <cstdint>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bernoulli/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bernoulli/eval.pass.cpp
index 568bf34f1ea437..a8cda553cdfb19 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bernoulli/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bernoulli/eval.pass.cpp
@@ -13,10 +13,11 @@
// template<class _URNG> result_type operator()(_URNG& g);
#include <random>
-#include <numeric>
-#include <vector>
#include <cassert>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bernoulli/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bernoulli/eval_param.pass.cpp
index dfaa9f1c89f991..1528bff81593e3 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bernoulli/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bernoulli/eval_param.pass.cpp
@@ -13,10 +13,11 @@
// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
#include <random>
-#include <numeric>
-#include <vector>
#include <cassert>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval.PR44847.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval.PR44847.pass.cpp
index a523bb9b194b74..8f7c8eb7ccc0f9 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval.PR44847.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval.PR44847.pass.cpp
@@ -22,10 +22,11 @@
// REQUIRES: long_tests
#include <random>
-#include <numeric>
-#include <vector>
#include <cassert>
+#include <cmath>
+#include <numeric>
#include <sstream>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval.pass.cpp
index d8852cc3bd09ed..dcd3c08660e040 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval.pass.cpp
@@ -16,6 +16,7 @@
// template<class _URNG> result_type operator()(_URNG& g);
#include <cassert>
+#include <cmath>
#include <cstdint>
#include <numeric>
#include <random>
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval_param.pass.cpp
index adbcb78d10f4f2..18ea053db21f2a 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.bin/eval_param.pass.cpp
@@ -16,9 +16,10 @@
// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
#include <random>
+#include <cassert>
+#include <cmath>
#include <numeric>
#include <vector>
-#include <cassert>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.geo/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.geo/eval.pass.cpp
index 0cdb7fa6312caf..6a81dd0c7c0113 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.geo/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.geo/eval.pass.cpp
@@ -15,10 +15,11 @@
// template<class _URNG> result_type operator()(_URNG& g);
+#include <random>
#include <cassert>
+#include <cmath>
#include <cstdint>
#include <numeric>
-#include <random>
#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.geo/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.geo/eval_param.pass.cpp
index 16a5bd4c7a33e7..4cb885ed93e4f8 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.geo/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.geo/eval_param.pass.cpp
@@ -16,9 +16,10 @@
// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
#include <random>
+#include <cassert>
+#include <cmath>
#include <numeric>
#include <vector>
-#include <cassert>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp
index be08361fc27e21..c877a8ad9205fd 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval.pass.cpp
@@ -24,9 +24,10 @@
// template<class _URNG> result_type operator()(_URNG& g);
#include <random>
+#include <cassert>
+#include <cmath>
#include <numeric>
#include <vector>
-#include <cassert>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval_param.pass.cpp
index 26bc83382f6850..5abae0e554339b 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.bern/rand.dist.bern.negbin/eval_param.pass.cpp
@@ -16,9 +16,10 @@
// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
#include <random>
+#include <cassert>
+#include <cmath>
#include <numeric>
#include <vector>
-#include <cassert>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/eval.pass.cpp
index 559034b2a0ec10..8a92a6ea7f63c9 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/eval.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/eval_param.pass.cpp
index 74454f29626724..a7dae6dea55e6c 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.chisq/eval_param.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.lognormal/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.lognormal/eval.pass.cpp
index 745103d13d2859..30fdb3508ed5cf 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.lognormal/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.lognormal/eval.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.lognormal/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.lognormal/eval_param.pass.cpp
index f9ea0bbd201ce1..05cb35ee063597 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.lognormal/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.lognormal/eval_param.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.normal/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.normal/eval.pass.cpp
index b869fbde935926..f5a960e7d41d19 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.normal/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.normal/eval.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.normal/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.normal/eval_param.pass.cpp
index 3b5cae11f6fe0e..883a0833c46f98 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.normal/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.normal/eval_param.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.t/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.t/eval.pass.cpp
index 80ed7bab265022..fbd7b727d26d7e 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.t/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.t/eval.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.t/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.t/eval_param.pass.cpp
index fe3140fb6f555b..b3029e8be3bbf4 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.t/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.norm/rand.dist.norm.t/eval_param.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/eval.pass.cpp
index aee573e5f2467c..be5f650d6b0276 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/eval.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/eval_param.pass.cpp
index dfbedd81e0b976..a221558095eaa5 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.exp/eval_param.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.extreme/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.extreme/eval.pass.cpp
index 3cf0feef18ece3..70b9276b3918e4 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.extreme/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.extreme/eval.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.extreme/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.extreme/eval_param.pass.cpp
index 43a22511589beb..5ac843be624763 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.extreme/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.extreme/eval_param.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp
index 48cc4df02396f8..4783988a091e37 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.gamma/eval.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp
index c437983c6bd7b1..ba9d5e178990d7 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.gamma/eval_param.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp
index e5cabc08658114..b80d6105c72450 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.poisson/eval_param.pass.cpp
@@ -17,8 +17,9 @@
#include <random>
#include <cassert>
-#include <vector>
+#include <cmath>
#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp
index 641f061d15a65a..1cb291b213d331 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/eval.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp
index a719819f58964f..6810e605281d92 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.pois/rand.dist.pois.weibull/eval_param.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/eval.pass.cpp
index 8ab560b15bb17e..4882e5dab72994 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/eval.pass.cpp
@@ -16,11 +16,12 @@
// template<class _URNG> result_type operator()(_URNG& g);
#include <random>
-#include <vector>
-#include <iterator>
-#include <numeric>
#include <algorithm> // for sort
#include <cassert>
+#include <cmath>
+#include <iterator>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp
index d3964ce18e1e11..b5b447aa2a02d7 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.pconst/eval_param.pass.cpp
@@ -17,11 +17,12 @@
#include <random>
#include <algorithm>
-#include <vector>
-#include <iterator>
-#include <numeric>
#include <cassert>
+#include <cmath>
#include <cstddef>
+#include <iterator>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.plinear/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.plinear/eval.pass.cpp
index 8aad0b8e4a856d..ec7f72edf9ee9b 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.plinear/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.plinear/eval.pass.cpp
@@ -17,11 +17,12 @@
#include <random>
#include <algorithm>
-#include <vector>
-#include <iterator>
-#include <numeric>
#include <cassert>
+#include <cmath>
+#include <iterator>
#include <limits>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.plinear/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.plinear/eval_param.pass.cpp
index 4601c360193019..9bcb2ed3afac12 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.plinear/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.samp/rand.dist.samp.plinear/eval_param.pass.cpp
@@ -16,12 +16,13 @@
// template<class _URNG> result_type operator()(_URNG& g, const param_type& parm);
#include <random>
-#include <vector>
-#include <iterator>
-#include <numeric>
#include <algorithm> // for sort
#include <cassert>
+#include <cmath>
+#include <iterator>
#include <limits>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
index 3a2942b74596a2..2ca213e04a8733 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.int/eval.pass.cpp
@@ -15,13 +15,14 @@
// template<class _URNG> result_type operator()(_URNG& g);
+#include <random>
#include <cassert>
#include <climits>
+#include <cmath>
#include <cstddef>
#include <cstdint>
#include <limits>
#include <numeric>
-#include <random>
#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.int/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.int/eval_param.pass.cpp
index 234cd3655b8337..60fde2d1bb2113 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.int/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.int/eval_param.pass.cpp
@@ -15,9 +15,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/eval.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/eval.pass.cpp
index b28bc6fc7c1c35..4137166a4788bf 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/eval.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/eval.pass.cpp
@@ -17,9 +17,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/eval_param.pass.cpp b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/eval_param.pass.cpp
index 2355c5fa105a53..9a9736f9f6a1ad 100644
--- a/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/eval_param.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.dist/rand.dist.uni/rand.dist.uni.real/eval_param.pass.cpp
@@ -15,9 +15,10 @@
#include <random>
#include <cassert>
-#include <vector>
-#include <numeric>
+#include <cmath>
#include <cstddef>
+#include <numeric>
+#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/copy.pass.cpp b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/copy.pass.cpp
index 50389ef801397b..ad473bdc58371c 100644
--- a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/copy.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/copy.pass.cpp
@@ -15,6 +15,7 @@
#include <random>
#include <cassert>
+#include <climits>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/default.pass.cpp b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/default.pass.cpp
index c59afd7a3eb273..a85c63d26ead62 100644
--- a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/default.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/default.pass.cpp
@@ -15,6 +15,7 @@
#include <random>
#include <cassert>
+#include <climits>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/values.pass.cpp b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/values.pass.cpp
index 98b07e70f247af..66b4e6ab4d6a86 100644
--- a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/values.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.lcong/values.pass.cpp
@@ -21,8 +21,9 @@
// static constexpr result_type default_seed = 1u;
#include <random>
-#include <type_traits>
#include <cassert>
+#include <climits>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.mers/result_type.pass.cpp b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.mers/result_type.pass.cpp
index b407b092d437b1..d8c22fc6c6573e 100644
--- a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.mers/result_type.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.mers/result_type.pass.cpp
@@ -18,6 +18,7 @@
// typedef UIntType result_type;
#include <random>
+#include <cstdint>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.sub/result_type.pass.cpp b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.sub/result_type.pass.cpp
index 2406b775b8ae4e..4d31a106b8dd67 100644
--- a/libcxx/test/std/numerics/rand/rand.eng/rand.eng.sub/result_type.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.eng/rand.eng.sub/result_type.pass.cpp
@@ -16,6 +16,7 @@
// typedef UIntType result_type;
#include <random>
+#include <cstdint>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.util/rand.util.seedseq/generate.mandates.verify.cpp b/libcxx/test/std/numerics/rand/rand.util/rand.util.seedseq/generate.mandates.verify.cpp
index a8ea31b68063a3..926013beaf213d 100644
--- a/libcxx/test/std/numerics/rand/rand.util/rand.util.seedseq/generate.mandates.verify.cpp
+++ b/libcxx/test/std/numerics/rand/rand.util/rand.util.seedseq/generate.mandates.verify.cpp
@@ -23,6 +23,7 @@
#include <random>
#include <climits>
+#include <cstdint>
#include "test_macros.h"
diff --git a/libcxx/test/std/numerics/rand/rand.util/rand.util.seedseq/types.pass.cpp b/libcxx/test/std/numerics/rand/rand.util/rand.util.seedseq/types.pass.cpp
index 82a12517c7b9bf..94164d03d6cef0 100644
--- a/libcxx/test/std/numerics/rand/rand.util/rand.util.seedseq/types.pass.cpp
+++ b/libcxx/test/std/numerics/rand/rand.util/rand.util.seedseq/types.pass.cpp
@@ -15,6 +15,7 @@
// typedef uint_least32_t result_type;
#include <random>
+#include <cstdint>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_for_token_pred.pass.cpp b/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_for_token_pred.pass.cpp
index 7a39d1253a33cf..9a3e7c9bac1e8f 100644
--- a/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_for_token_pred.pass.cpp
+++ b/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_for_token_pred.pass.cpp
@@ -19,6 +19,7 @@
// bool wait_for(Lock& lock, stop_token stoken,
// const chrono::duration<Rep, Period>& rel_time, Predicate pred);
+#include <atomic>
#include <cassert>
#include <chrono>
#include <concepts>
diff --git a/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_token_pred.pass.cpp b/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_token_pred.pass.cpp
index f322d8cfdc68fc..271c67273b272e 100644
--- a/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_token_pred.pass.cpp
+++ b/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_token_pred.pass.cpp
@@ -18,6 +18,7 @@
// template<class Lock, class Predicate>
// bool wait(Lock& lock, stop_token stoken, Predicate pred);
+#include <atomic>
#include <cassert>
#include <concepts>
#include <condition_variable>
diff --git a/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_until_token_pred.pass.cpp b/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_until_token_pred.pass.cpp
index e7388b9ce0e176..631ac889b936f3 100644
--- a/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_until_token_pred.pass.cpp
+++ b/libcxx/test/std/thread/thread.condition/thread.condition.condvarany/wait_until_token_pred.pass.cpp
@@ -19,6 +19,7 @@
// bool wait_until(Lock& lock, stop_token stoken,
// const chrono::time_point<Clock, Duration>& abs_time, Predicate pred);
+#include <atomic>
#include <cassert>
#include <chrono>
#include <concepts>
diff --git a/libcxx/test/std/thread/thread.jthread/cons.func.token.pass.cpp b/libcxx/test/std/thread/thread.jthread/cons.func.token.pass.cpp
index 2d029271d75ce8..5236b84b1fd96b 100644
--- a/libcxx/test/std/thread/thread.jthread/cons.func.token.pass.cpp
+++ b/libcxx/test/std/thread/thread.jthread/cons.func.token.pass.cpp
@@ -18,6 +18,7 @@
#include <stop_token>
#include <thread>
#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/thread/thread.stoptoken/stopcallback/dtor.pass.cpp b/libcxx/test/std/thread/thread.stoptoken/stopcallback/dtor.pass.cpp
index 93137111b676cd..eac3d688a1d9fa 100644
--- a/libcxx/test/std/thread/thread.stoptoken/stopcallback/dtor.pass.cpp
+++ b/libcxx/test/std/thread/thread.stoptoken/stopcallback/dtor.pass.cpp
@@ -17,6 +17,7 @@
#include <cassert>
#include <chrono>
#include <functional>
+#include <memory>
#include <optional>
#include <stop_token>
#include <type_traits>
diff --git a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/decrement.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/decrement.pass.cpp
index 9e13ab4decd7b2..a2c97607a5e5fe 100644
--- a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/decrement.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/decrement.pass.cpp
@@ -14,8 +14,9 @@
// constexpr day operator--(int) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/increment.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/increment.pass.cpp
index 3d67558950535c..ea49f42d92fa0a 100644
--- a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/increment.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/increment.pass.cpp
@@ -14,8 +14,9 @@
// constexpr day operator++(int) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/ok.pass.cpp
index b0309067394e38..d50ab29615df51 100644
--- a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: 1 <= d_ && d_ <= 31
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/plus_minus_equal.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/plus_minus_equal.pass.cpp
index 28a1529beb7437..dea590a31ac106 100644
--- a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/plus_minus_equal.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.members/plus_minus_equal.pass.cpp
@@ -14,8 +14,9 @@
// constexpr day& operator-=(const days& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/minus.pass.cpp
index f2d29f7050e730..2521170fe914ae 100644
--- a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/minus.pass.cpp
@@ -17,8 +17,9 @@
// Returns: days{int(unsigned{x}) - int(unsigned{y}).
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/plus.pass.cpp
index dd6e537ec5d391..04761f4c2e5487 100644
--- a/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.day/time.cal.day.nonmembers/plus.pass.cpp
@@ -17,8 +17,9 @@
// Returns: y + x.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/day.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/day.pass.cpp
index e73d7b63c0c038..c2355d1b38b3f8 100644
--- a/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/day.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/day.pass.cpp
@@ -14,8 +14,9 @@
// Returns: d_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/month.pass.cpp
index 4e39b2e7fd9076..342495047304d2 100644
--- a/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/ok.pass.cpp
index 2bc7a5aadd16c9..22fae5004a406d 100644
--- a/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.md/time.cal.md.members/ok.pass.cpp
@@ -16,8 +16,9 @@
// When m_ == February, the number of days is considered to be 29.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.mdlast/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.mdlast/month.pass.cpp
index 2e95a0ba2d9ee1..7e43e3cf2e9021 100644
--- a/libcxx/test/std/time/time.cal/time.cal.mdlast/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.mdlast/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: m_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.mdlast/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.mdlast/ok.pass.cpp
index c6bec5d33a5922..808327966c5a55 100644
--- a/libcxx/test/std/time/time.cal/time.cal.mdlast/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.mdlast/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: m_.ok()
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/decrement.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/decrement.pass.cpp
index 9299d9e297218f..387ee5ab210034 100644
--- a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/decrement.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/decrement.pass.cpp
@@ -14,8 +14,9 @@
// constexpr month operator--(int) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/increment.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/increment.pass.cpp
index 1f8f7411eb2ebb..5798c1513bd10d 100644
--- a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/increment.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/increment.pass.cpp
@@ -14,8 +14,9 @@
// constexpr month operator++(int) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/ok.pass.cpp
index 988051d02a665d..504ae7344690aa 100644
--- a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: 1 <= d_ && d_ <= 12
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/plus_minus_equal.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/plus_minus_equal.pass.cpp
index d825ef7d6cefa3..f643ce99c49380 100644
--- a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/plus_minus_equal.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.members/plus_minus_equal.pass.cpp
@@ -14,8 +14,9 @@
// constexpr month& operator-=(const month& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/minus.pass.cpp
index f7fb2b19ba60f2..3653cdba79c81d 100644
--- a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/minus.pass.cpp
@@ -20,8 +20,9 @@
// [Example: January - February == months{11}. -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/plus.pass.cpp
index ee7a33e9e0b860..ae365ad1c0bc15 100644
--- a/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.month/time.cal.month.nonmembers/plus.pass.cpp
@@ -24,8 +24,9 @@
// [Example: February + months{11} == January. -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/month.pass.cpp
index f6e79f5a90d090..73b191d86de5ee 100644
--- a/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/ok.pass.cpp
index a46ffabb9b71dd..8ce38277b9a4c4 100644
--- a/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: m_.ok() && wdi_.ok().
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/weekday_indexed.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/weekday_indexed.pass.cpp
index 54f6a4c3043ba0..6255bf483ac6da 100644
--- a/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/weekday_indexed.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.mwd/time.cal.mwd.members/weekday_indexed.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wdi_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/month.pass.cpp
index d78f038ab6b17f..c57f0bb3fae86d 100644
--- a/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: m_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/ok.pass.cpp
index 9833757d635987..e5cc5dc5a15db6 100644
--- a/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: m_.ok() && wdl_.ok().
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/weekday_last.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/weekday_last.pass.cpp
index 6702287db70fe7..c3c2573deab2ed 100644
--- a/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/weekday_last.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.mwdlast/time.cal.mwdlast.members/weekday_last.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wdl_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/index.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/index.pass.cpp
index cfcc21487e379d..821b804ff0a2e6 100644
--- a/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/index.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/index.pass.cpp
@@ -14,8 +14,9 @@
// Returns: index_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/ok.pass.cpp
index 3c96412bcefd14..8e8206962f91be 100644
--- a/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_.ok() && 1 <= index_ && index_ <= 5
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/weekday.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/weekday.pass.cpp
index 1077e9511a058d..6404cd557c6baa 100644
--- a/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/weekday.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.wdidx/time.cal.wdidx.members/weekday.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.wdlast/time.cal.wdlast.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.wdlast/time.cal.wdlast.members/ok.pass.cpp
index db023516adccac..302dd5394434f2 100644
--- a/libcxx/test/std/time/time.cal/time.cal.wdlast/time.cal.wdlast.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.wdlast/time.cal.wdlast.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_.ok()
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.wdlast/time.cal.wdlast.members/weekday.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.wdlast/time.cal.wdlast.members/weekday.pass.cpp
index cdaddc2654be77..86e4eb0263c2e5 100644
--- a/libcxx/test/std/time/time.cal/time.cal.wdlast/time.cal.wdlast.members/weekday.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.wdlast/time.cal.wdlast.members/weekday.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/c_encoding.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/c_encoding.pass.cpp
index e80b449f9bc449..f7a2ff896e6a92 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/c_encoding.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/c_encoding.pass.cpp
@@ -13,8 +13,9 @@
// constexpr unsigned c_encoding() const noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.local_days.pass.cpp
index b2127d3eb17eed..03e698ad17691a 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.local_days.pass.cpp
@@ -24,8 +24,9 @@
// -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.sys_days.pass.cpp
index d8777b7cdc6054..4475e6f7e29039 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ctor.sys_days.pass.cpp
@@ -24,8 +24,9 @@
// -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/decrement.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/decrement.pass.cpp
index 16ed968c3b9dc2..f55108c922c3a9 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/decrement.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/decrement.pass.cpp
@@ -14,8 +14,9 @@
// constexpr weekday operator--(int) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "../../euclidian.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/increment.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/increment.pass.cpp
index 6c3ad9b21f45df..869c2ea0cfb333 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/increment.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/increment.pass.cpp
@@ -14,8 +14,9 @@
// constexpr weekday operator++(int) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "../../euclidian.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/iso_encoding.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/iso_encoding.pass.cpp
index 18d59698fb4e45..a3a621bee991d0 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/iso_encoding.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/iso_encoding.pass.cpp
@@ -15,8 +15,9 @@
// See [time.cal.wd.members]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ok.pass.cpp
index 106f38f2d0e7c5..5792ef5ec9586c 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_ <= 6
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/operator[].pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/operator[].pass.cpp
index 290e39b7567a35..1900f00ba76039 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/operator[].pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/operator[].pass.cpp
@@ -15,8 +15,9 @@
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "../../euclidian.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/plus_minus_equal.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/plus_minus_equal.pass.cpp
index 8fbc7bd8384070..6273cd0041011c 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/plus_minus_equal.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.members/plus_minus_equal.pass.cpp
@@ -14,8 +14,9 @@
// constexpr weekday& operator-=(const days& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "../../euclidian.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/minus.pass.cpp
index ef5753100f3a94..ecb023c4eb5883 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/minus.pass.cpp
@@ -20,8 +20,9 @@
// [Example: Sunday - Monday == days{6}. -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "../../euclidian.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/plus.pass.cpp
index 2eb839b0b217ac..ecf7a5ee8709e9 100644
--- a/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.weekday/time.cal.weekday.nonmembers/plus.pass.cpp
@@ -24,8 +24,9 @@
// [Example: Monday + days{6} == Sunday. -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "../../euclidian.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/decrement.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/decrement.pass.cpp
index b8fd3ba9eaeea6..1190785b1c3b08 100644
--- a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/decrement.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/decrement.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year operator--(int) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/increment.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/increment.pass.cpp
index ea66a5940e765e..aec38c464099a0 100644
--- a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/increment.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/increment.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year operator++(int) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/ok.pass.cpp
index 57e5ed0a9665b9..1350d95657a183 100644
--- a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/ok.pass.cpp
@@ -19,8 +19,9 @@
// Returns year{-32767};
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/plus_minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/plus_minus.pass.cpp
index 37dc8e01aac456..c08d23a081e271 100644
--- a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/plus_minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/plus_minus.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year operator-() const noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/plus_minus_equal.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/plus_minus_equal.pass.cpp
index 6cccbdb1f2898d..1041c33377f307 100644
--- a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/plus_minus_equal.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.members/plus_minus_equal.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year& operator-=(const years& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/minus.pass.cpp
index 9c382a2ef77c49..167083a3d7bf16 100644
--- a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/minus.pass.cpp
@@ -20,8 +20,9 @@
// [Example: January - February == years{11}. -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/plus.pass.cpp
index 138a0e03f88ed9..b85f6e777a877f 100644
--- a/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.year/time.cal.year.nonmembers/plus.pass.cpp
@@ -17,8 +17,9 @@
// Returns: y + x
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/month.pass.cpp
index 9f3181871b5e15..ea596ec86c9853 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/ok.pass.cpp
index 2893af0fd29b2e..611db55e81133c 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: m_.ok() && y_.ok().
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/plus_minus_equal_month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/plus_minus_equal_month.pass.cpp
index cc9fff83a1cff1..a67286b85c04a5 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/plus_minus_equal_month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/plus_minus_equal_month.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month& operator-=(const months& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/plus_minus_equal_year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/plus_minus_equal_year.pass.cpp
index 99b94859aaea21..591f15007b1292 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/plus_minus_equal_year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/plus_minus_equal_year.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month& operator-=(const years& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/year.pass.cpp
index b09de6454238ab..21f98088bf6dd1 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.members/year.pass.cpp
@@ -14,8 +14,9 @@
// Returns: d_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.nonmembers/minus.pass.cpp
index 977c566e745ac1..22f137f042fd8e 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.nonmembers/minus.pass.cpp
@@ -21,8 +21,9 @@
// static_cast<int>(unsigned{y.month()})}
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.nonmembers/plus.pass.cpp
index 60747a29714d11..29049fd98fa7a6 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ym/time.cal.ym.nonmembers/plus.pass.cpp
@@ -24,8 +24,9 @@
// Returns: ym + dm.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.local_days.pass.cpp
index f9de6316df3ff3..2f68fb4fb4346c 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.local_days.pass.cpp
@@ -24,8 +24,9 @@
// constexpr bool ok() const noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.sys_days.pass.cpp
index b0d963a58a4d9a..ec14db489c3428 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.sys_days.pass.cpp
@@ -23,8 +23,9 @@
// constexpr bool ok() const noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.year_month_day_last.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.year_month_day_last.pass.cpp
index 4c3875ba77629c..e65da4c412fef1 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.year_month_day_last.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ctor.year_month_day_last.pass.cpp
@@ -21,8 +21,9 @@
// constexpr bool ok() const noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/day.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/day.pass.cpp
index 6e4ac6359d4d10..42e26fdad3fe31 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/day.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/day.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/month.pass.cpp
index 75855dadc20f12..ead060b4e2968a 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ok.pass.cpp
index 8d38a6f024dc82..45cceca20cbefe 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: m_.ok() && y_.ok().
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.local_days.pass.cpp
index cc882d7569eaf4..b15caa3f76156c 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.local_days.pass.cpp
@@ -30,8 +30,9 @@
// -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.sys_days.pass.cpp
index ec252eaa11dbdf..ecfc5e828c0c8f 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/op.sys_days.pass.cpp
@@ -30,8 +30,9 @@
// -end example]
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/plus_minus_equal_month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/plus_minus_equal_month.pass.cpp
index 40db399b110b83..12857a3543d60f 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/plus_minus_equal_month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/plus_minus_equal_month.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month_day& operator-=(const months& m) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/plus_minus_equal_year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/plus_minus_equal_year.pass.cpp
index e886308f2c6111..80c7283fcd4dbf 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/plus_minus_equal_year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/plus_minus_equal_year.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month_day& operator-=(const years& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/year.pass.cpp
index 3eba6483c25068..efe142afbf67c5 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.members/year.pass.cpp
@@ -14,8 +14,9 @@
// Returns: d_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.nonmembers/minus.pass.cpp
index 5ec0e04f702518..c0032621c901b0 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.nonmembers/minus.pass.cpp
@@ -15,8 +15,9 @@
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.nonmembers/plus.pass.cpp
index b172cb13845704..c724be6b380da5 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymd/time.cal.ymd.nonmembers/plus.pass.cpp
@@ -24,8 +24,9 @@
// Returns: ym + dm.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/day.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/day.pass.cpp
index cf3c109fb1351c..0e397406277f4c 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/day.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/day.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/month.pass.cpp
index d7384f754d498d..eb90391499ef91 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/month_day_last.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/month_day_last.pass.cpp
index f286c4e2ecc0e3..41c38c1ad6d1f9 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/month_day_last.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/month_day_last.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/ok.pass.cpp
index 09c52b461dc8cd..972c0995745cdf 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: m_.ok() && y_.ok().
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/op_local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/op_local_days.pass.cpp
index 7760cfc027cccb..82a6c91d03cf79 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/op_local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/op_local_days.pass.cpp
@@ -14,8 +14,9 @@
// Returns: local_days{sys_days{*this}.time_since_epoch()}.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/op_sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/op_sys_days.pass.cpp
index e33cec68ae4f72..2f70f090131b98 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/op_sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/op_sys_days.pass.cpp
@@ -14,8 +14,9 @@
// Returns: sys_days{year()/month()/day()}.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/plus_minus_equal_month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/plus_minus_equal_month.pass.cpp
index 1c084795960162..c860a73c73a6f3 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/plus_minus_equal_month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/plus_minus_equal_month.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month_day_last& operator-=(const months& m) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/plus_minus_equal_year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/plus_minus_equal_year.pass.cpp
index cef20fdc10860f..84e77790a655a7 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/plus_minus_equal_year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/plus_minus_equal_year.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month_day_last& operator-=(const years& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/year.pass.cpp
index 1171687765cb02..fda571c56c6257 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.members/year.pass.cpp
@@ -14,8 +14,9 @@
// Returns: d_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/minus.pass.cpp
index 22d1acfbe28278..3069350a13eeec 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/minus.pass.cpp
@@ -21,8 +21,9 @@
// Returns: ymdl + (-dy).
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/plus.pass.cpp
index 1a4609e761baa7..951f61326b91dc 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymdlast/time.cal.ymdlast.nonmembers/plus.pass.cpp
@@ -32,8 +32,9 @@
// Returns: ymdl + dy
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ctor.local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ctor.local_days.pass.cpp
index 7bc17fd6c2be63..b8c45f1f087ea4 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ctor.local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ctor.local_days.pass.cpp
@@ -24,8 +24,9 @@
// constexpr bool ok() const noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ctor.sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ctor.sys_days.pass.cpp
index a5c544b25991a1..0390b555f8d7af 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ctor.sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ctor.sys_days.pass.cpp
@@ -23,8 +23,9 @@
// constexpr bool ok() const noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/index.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/index.pass.cpp
index a9323542170357..8ca7dba40d2cb7 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/index.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/index.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wdi_.index()
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/month.pass.cpp
index d03a5683686db2..7f2ea227ecedbe 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ok.pass.cpp
index 5456bbe86e7d7f..85ef09484ffce8 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/ok.pass.cpp
@@ -16,8 +16,9 @@
// Otherwise, returns false.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/op.local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/op.local_days.pass.cpp
index 51d1942d3905b6..da36bdc0b56436 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/op.local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/op.local_days.pass.cpp
@@ -20,8 +20,9 @@
//
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/op.sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/op.sys_days.pass.cpp
index 3ca32d926cbabe..db589e0b25af4c 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/op.sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/op.sys_days.pass.cpp
@@ -20,8 +20,9 @@
//
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/plus_minus_equal_month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/plus_minus_equal_month.pass.cpp
index 6aaab2dbfb31d3..62182cfee363a3 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/plus_minus_equal_month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/plus_minus_equal_month.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month_weekday& operator-=(const months& m) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/plus_minus_equal_year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/plus_minus_equal_year.pass.cpp
index f77acec1df7337..f792c4cf0d1fad 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/plus_minus_equal_year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/plus_minus_equal_year.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month_weekday& operator-=(const years& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/weekday.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/weekday.pass.cpp
index 16e5fc71150c48..d25644d2b8707b 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/weekday.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/weekday.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wdi_.weekday()
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/weekday_indexed.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/weekday_indexed.pass.cpp
index 2251f1eb294b13..4e38b2b35476be 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/weekday_indexed.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/weekday_indexed.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/year.pass.cpp
index fe44ff51f2eaa6..a3fcfd883391ec 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.members/year.pass.cpp
@@ -14,8 +14,9 @@
// Returns: d_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.nonmembers/minus.pass.cpp
index 5546d34ca22dd0..511fe58d727e5e 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.nonmembers/minus.pass.cpp
@@ -17,8 +17,9 @@
// Returns: ymwd + (-dy).
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.nonmembers/plus.pass.cpp
index 1601e8fecb7a4b..93f3b934d2b181 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwd/time.cal.ymwd.nonmembers/plus.pass.cpp
@@ -24,8 +24,9 @@
// Returns: ym + dm.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/month.pass.cpp
index 8515e87510a953..ae9090d74374f7 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/month.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wd_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/ok.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/ok.pass.cpp
index 81bc7912d695ac..37798a7babbe3d 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/ok.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/ok.pass.cpp
@@ -14,8 +14,9 @@
// Returns: y_.ok() && m_.ok() && wdl_.ok().
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/op_local_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/op_local_days.pass.cpp
index 397aa29ec83081..91d008fd7f440d 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/op_local_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/op_local_days.pass.cpp
@@ -14,8 +14,9 @@
// Returns: local_days{sys_days{*this}.time_since_epoch()}.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/op_sys_days.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/op_sys_days.pass.cpp
index 0418f5bed1285d..f05fd3f774bda3 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/op_sys_days.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/op_sys_days.pass.cpp
@@ -15,8 +15,9 @@
// of year()/month(). Otherwise the returned value is unspecified.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/plus_minus_equal_month.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/plus_minus_equal_month.pass.cpp
index ff52b1466cefa5..a3fed20a4ac02e 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/plus_minus_equal_month.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/plus_minus_equal_month.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month_weekday_last& operator-=(const months& m) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/plus_minus_equal_year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/plus_minus_equal_year.pass.cpp
index db8c9f482a16d2..14c1f618ac885e 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/plus_minus_equal_year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/plus_minus_equal_year.pass.cpp
@@ -14,8 +14,9 @@
// constexpr year_month_weekday_last& operator-=(const years& d) noexcept;
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/weekday.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/weekday.pass.cpp
index b277e212553c4a..df2c50ea25d556 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/weekday.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/weekday.pass.cpp
@@ -14,8 +14,9 @@
// Returns: wdi_.weekday()
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/year.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/year.pass.cpp
index 22f82bcb7fc891..867238294fbbdb 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/year.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.members/year.pass.cpp
@@ -14,8 +14,9 @@
// Returns: d_
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.nonmembers/minus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.nonmembers/minus.pass.cpp
index 6fe2ec3b6606d1..cffe5d1516a2f1 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.nonmembers/minus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.nonmembers/minus.pass.cpp
@@ -17,8 +17,9 @@
// Returns: ymwdl + (-dy).
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.nonmembers/plus.pass.cpp b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.nonmembers/plus.pass.cpp
index 560b2fcde05568..3acf2c8f69deee 100644
--- a/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.nonmembers/plus.pass.cpp
+++ b/libcxx/test/std/time/time.cal/time.cal.ymwdlast/time.cal.ymwdlast.nonmembers/plus.pass.cpp
@@ -23,8 +23,9 @@
// Returns: ymwdl + dy.
#include <chrono>
-#include <type_traits>
#include <cassert>
+#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.access/current_zone.pass.cpp b/libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.access/current_zone.pass.cpp
index f31a679dd6214f..b23a0e5d79b6d2 100644
--- a/libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.access/current_zone.pass.cpp
+++ b/libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.access/current_zone.pass.cpp
@@ -16,10 +16,11 @@
// const time_zone* current_zone();
-#include <cassert>
#include <chrono>
-#include <string_view>
+#include <cassert>
#include <stdlib.h>
+#include <string_view>
+#include <string>
#include "test_macros.h"
#include "assert_macros.h"
diff --git a/libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.remote/remote_version.pass.cpp b/libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.remote/remote_version.pass.cpp
index 554f259eb5c2af..ae6508913b2dc8 100644
--- a/libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.remote/remote_version.pass.cpp
+++ b/libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.remote/remote_version.pass.cpp
@@ -17,8 +17,8 @@
// const string remote_version();
#include <chrono>
-
#include <cassert>
+#include <string>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.zone/time.zone.exception/time.zone.exception.nonexist/types.pass.cpp b/libcxx/test/std/time/time.zone/time.zone.exception/time.zone.exception.nonexist/types.pass.cpp
index 85ebfab679e02d..f8262e241fa94c 100644
--- a/libcxx/test/std/time/time.zone/time.zone.exception/time.zone.exception.nonexist/types.pass.cpp
+++ b/libcxx/test/std/time/time.zone/time.zone.exception/time.zone.exception.nonexist/types.pass.cpp
@@ -25,6 +25,7 @@
#include <chrono>
#include <stdexcept>
#include <type_traits>
+#include <utility>
// Basic properties
static_assert(std::is_base_of_v<std::runtime_error, std::chrono::nonexistent_local_time>);
diff --git a/libcxx/test/std/time/time.zone/time.zone.leap/members/date.pass.cpp b/libcxx/test/std/time/time.zone/time.zone.leap/members/date.pass.cpp
index bd148689f96f07..98a7fc73f91744 100644
--- a/libcxx/test/std/time/time.zone/time.zone.leap/members/date.pass.cpp
+++ b/libcxx/test/std/time/time.zone/time.zone.leap/members/date.pass.cpp
@@ -20,6 +20,7 @@
#include <cassert>
#include <chrono>
+#include <concepts>
#include "test_macros.h"
diff --git a/libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_default_zone.pass.cpp b/libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_default_zone.pass.cpp
index c6527094bb6215..930de9d0fec9e3 100644
--- a/libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_default_zone.pass.cpp
+++ b/libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_default_zone.pass.cpp
@@ -20,6 +20,7 @@
#include <chrono>
#include <cassert>
+#include <concepts>
int main(int, char**) {
std::same_as<const std::chrono::time_zone*> decltype(auto) tz =
diff --git a/libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_locate_zone.pass.cpp b/libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_locate_zone.pass.cpp
index 1c8184455f23cf..c565de5a08f2c4 100644
--- a/libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_locate_zone.pass.cpp
+++ b/libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_locate_zone.pass.cpp
@@ -21,6 +21,7 @@
#include <chrono>
#include <cassert>
#include <concepts>
+#include <string_view>
#include "assert_macros.h"
diff --git a/libcxx/test/std/utilities/charconv/charconv.msvc/test.hpp b/libcxx/test/std/utilities/charconv/charconv.msvc/test.hpp
index eb6d6486333e98..aaaf0e8a433c02 100644
--- a/libcxx/test/std/utilities/charconv/charconv.msvc/test.hpp
+++ b/libcxx/test/std/utilities/charconv/charconv.msvc/test.hpp
@@ -5,8 +5,8 @@
#define TEST_HPP
#include <charconv>
+#include <cstddef>
#include <limits>
-#include <stddef.h>
#include <system_error>
using namespace std;
diff --git a/libcxx/test/std/utilities/charconv/charconv.syn/from_chars_result.pass.cpp b/libcxx/test/std/utilities/charconv/charconv.syn/from_chars_result.pass.cpp
index 24484cfe475f91..26d0d366dcc684 100644
--- a/libcxx/test/std/utilities/charconv/charconv.syn/from_chars_result.pass.cpp
+++ b/libcxx/test/std/utilities/charconv/charconv.syn/from_chars_result.pass.cpp
@@ -24,6 +24,7 @@
#include <compare>
#include <concepts>
#include <system_error>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/charconv/charconv.syn/to_chars_result.pass.cpp b/libcxx/test/std/utilities/charconv/charconv.syn/to_chars_result.pass.cpp
index e746f19b2cd021..a7d9b086e591dc 100644
--- a/libcxx/test/std/utilities/charconv/charconv.syn/to_chars_result.pass.cpp
+++ b/libcxx/test/std/utilities/charconv/charconv.syn/to_chars_result.pass.cpp
@@ -24,6 +24,7 @@
#include <compare>
#include <concepts>
#include <system_error>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/format/format.formatter/format.formatter.spec/formatter.pointer.pass.cpp b/libcxx/test/std/utilities/format/format.formatter/format.formatter.spec/formatter.pointer.pass.cpp
index 19bb8bf0b47a59..f1d2c7f428bffc 100644
--- a/libcxx/test/std/utilities/format/format.formatter/format.formatter.spec/formatter.pointer.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.formatter/format.formatter.spec/formatter.pointer.pass.cpp
@@ -24,9 +24,10 @@
#include <array>
#include <cassert>
-#include <cmath>
#include <charconv>
+#include <cmath>
#include <concepts>
+#include <cstdint>
#include <iterator>
#include <memory>
#include <string>
diff --git a/libcxx/test/std/utilities/format/format.formatter/format.formatter.spec/formatter.signed_integral.pass.cpp b/libcxx/test/std/utilities/format/format.formatter/format.formatter.spec/formatter.signed_integral.pass.cpp
index d589a315dc924f..707664ac127856 100644
--- a/libcxx/test/std/utilities/format/format.formatter/format.formatter.spec/formatter.signed_integral.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.formatter/format.formatter.spec/formatter.signed_integral.pass.cpp
@@ -30,6 +30,7 @@
#include <format>
#include <cassert>
#include <concepts>
+#include <cstdint>
#include <iterator>
#include <memory>
#include <type_traits>
diff --git a/libcxx/test/std/utilities/format/format.functions/escaped_output.unicode.pass.cpp b/libcxx/test/std/utilities/format/format.functions/escaped_output.unicode.pass.cpp
index fa3076224f2d13..c4adf601c40af3 100644
--- a/libcxx/test/std/utilities/format/format.functions/escaped_output.unicode.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.functions/escaped_output.unicode.pass.cpp
@@ -24,6 +24,7 @@
#include <cassert>
#include <concepts>
+#include <cstdint>
#include <iterator>
#include <list>
#include <vector>
diff --git a/libcxx/test/std/utilities/format/format.functions/format_to.locale.pass.cpp b/libcxx/test/std/utilities/format/format.functions/format_to.locale.pass.cpp
index ec21133463a393..01a75b3d466b9a 100644
--- a/libcxx/test/std/utilities/format/format.functions/format_to.locale.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.functions/format_to.locale.pass.cpp
@@ -26,6 +26,7 @@
#include <cassert>
#include <iterator>
#include <list>
+#include <locale>
#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/format/format.functions/format_to_n.locale.pass.cpp b/libcxx/test/std/utilities/format/format.functions/format_to_n.locale.pass.cpp
index 3c266ad756da2b..ec1e466f8a421a 100644
--- a/libcxx/test/std/utilities/format/format.functions/format_to_n.locale.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.functions/format_to_n.locale.pass.cpp
@@ -27,6 +27,7 @@
#include <algorithm>
#include <cassert>
#include <list>
+#include <locale>
#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/format/format.functions/formatted_size.locale.pass.cpp b/libcxx/test/std/utilities/format/format.functions/formatted_size.locale.pass.cpp
index e5a85826a11fe8..32e6447c006a55 100644
--- a/libcxx/test/std/utilities/format/format.functions/formatted_size.locale.pass.cpp
+++ b/libcxx/test/std/utilities/format/format.functions/formatted_size.locale.pass.cpp
@@ -23,6 +23,7 @@
#include <format>
#include <cassert>
+#include <locale>
#include <vector>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isbind/is_bind_expression.pass.cpp b/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isbind/is_bind_expression.pass.cpp
index 5940988fd6d1fe..25ee7612d24393 100644
--- a/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isbind/is_bind_expression.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isbind/is_bind_expression.pass.cpp
@@ -13,6 +13,8 @@
// template<class T> struct is_bind_expression
#include <functional>
+#include <type_traits>
+
#include "test_macros.h"
template <bool Expected, class T>
diff --git a/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isplace/is_placeholder.pass.cpp b/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isplace/is_placeholder.pass.cpp
index 1e85ca79dbb866..48ce625f428b0e 100644
--- a/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isplace/is_placeholder.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/bind/func.bind/func.bind.isplace/is_placeholder.pass.cpp
@@ -11,6 +11,8 @@
// struct is_placeholder
#include <functional>
+#include <type_traits>
+
#include "test_macros.h"
template <int Expected, class T>
diff --git a/libcxx/test/std/utilities/function.objects/unord.hash/enum.pass.cpp b/libcxx/test/std/utilities/function.objects/unord.hash/enum.pass.cpp
index 54e9f25275cf24..fd1fbe5f113baa 100644
--- a/libcxx/test/std/utilities/function.objects/unord.hash/enum.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/unord.hash/enum.pass.cpp
@@ -12,12 +12,14 @@
// Make sure that we can hash enumeration values.
-#include "test_macros.h"
-
#include <functional>
#include <cassert>
-#include <type_traits>
+#include <cstddef>
+#include <cstdint>
#include <limits>
+#include <type_traits>
+
+#include "test_macros.h"
enum class Colors { red, orange, yellow, green, blue, indigo, violet };
enum class Cardinals { zero, one, two, three, five=5 };
diff --git a/libcxx/test/std/utilities/function.objects/unord.hash/integral.pass.cpp b/libcxx/test/std/utilities/function.objects/unord.hash/integral.pass.cpp
index 4d6bc172fe3865..14af7093c1e366 100644
--- a/libcxx/test/std/utilities/function.objects/unord.hash/integral.pass.cpp
+++ b/libcxx/test/std/utilities/function.objects/unord.hash/integral.pass.cpp
@@ -19,9 +19,10 @@
#include <functional>
#include <cassert>
-#include <type_traits>
#include <cstddef>
+#include <cstdint>
#include <limits>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.types/difference_type.pass.cpp b/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.types/difference_type.pass.cpp
index 2cb2c670441b07..2ebf5dc627a241 100644
--- a/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.types/difference_type.pass.cpp
+++ b/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.types/difference_type.pass.cpp
@@ -17,6 +17,7 @@
// };
#include <memory>
+#include <cstddef>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.types/size_type.pass.cpp b/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.types/size_type.pass.cpp
index d8f15af6acf183..22390cb6cef4c4 100644
--- a/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.types/size_type.pass.cpp
+++ b/libcxx/test/std/utilities/memory/allocator.traits/allocator.traits.types/size_type.pass.cpp
@@ -16,6 +16,7 @@
// };
#include <memory>
+#include <cstddef>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.types/difference_type.compile.pass.cpp b/libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.types/difference_type.compile.pass.cpp
index f5fd27cffba84f..ddfbda09291022 100644
--- a/libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.types/difference_type.compile.pass.cpp
+++ b/libcxx/test/std/utilities/memory/pointer.traits/pointer.traits.types/difference_type.compile.pass.cpp
@@ -16,6 +16,7 @@
// };
#include <memory>
+#include <cstddef>
#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/types.pass.cpp b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/types.pass.cpp
index c71765891d5552..d043343460f537 100644
--- a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/types.pass.cpp
+++ b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/types.pass.cpp
@@ -19,6 +19,7 @@
#include <memory>
#include <type_traits>
+#include <utility>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.mod/reset_pointer.pass.cpp b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.mod/reset_pointer.pass.cpp
index d1d19e4562355d..b9d91979b02cb1 100644
--- a/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.mod/reset_pointer.pass.cpp
+++ b/libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.mod/reset_pointer.pass.cpp
@@ -14,6 +14,7 @@
#include <memory>
#include <cassert>
+#include <utility>
#include "reset_helper.h"
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/meta/meta.trans/meta.trans.other/underlying_type.pass.cpp b/libcxx/test/std/utilities/meta/meta.trans/meta.trans.other/underlying_type.pass.cpp
index 3e08855d6adb90..f076f676be7660 100644
--- a/libcxx/test/std/utilities/meta/meta.trans/meta.trans.other/underlying_type.pass.cpp
+++ b/libcxx/test/std/utilities/meta/meta.trans/meta.trans.other/underlying_type.pass.cpp
@@ -14,6 +14,7 @@
#include <type_traits>
#include <climits>
+#include <cstddef>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_bounded_array.pass.cpp b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_bounded_array.pass.cpp
index 6cade6ae1f07b1..8e57e8913dcbe3 100644
--- a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_bounded_array.pass.cpp
+++ b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_bounded_array.pass.cpp
@@ -13,6 +13,7 @@
// T is an array type of known bound ([dcl.array])
#include <type_traits>
+#include <cstddef>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_unbounded_array.pass.cpp b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_unbounded_array.pass.cpp
index ea5383984262da..46dafb64a9cf7c 100644
--- a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_unbounded_array.pass.cpp
+++ b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.comp/is_unbounded_array.pass.cpp
@@ -13,6 +13,7 @@
// T is an array type of unknown bound ([dcl.array])
#include <type_traits>
+#include <cstddef>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_signed.pass.cpp b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_signed.pass.cpp
index 6d11561af75474..f500da3ee6317f 100644
--- a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_signed.pass.cpp
+++ b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_signed.pass.cpp
@@ -11,6 +11,8 @@
// is_signed
#include <type_traits>
+#include <cstddef>
+
#include "test_macros.h"
template <class T>
diff --git a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_unsigned.pass.cpp b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_unsigned.pass.cpp
index abf21e60b59270..e10c377b012d4e 100644
--- a/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_unsigned.pass.cpp
+++ b/libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/is_unsigned.pass.cpp
@@ -11,6 +11,8 @@
// is_unsigned
#include <type_traits>
+#include <cstddef>
+
#include "test_macros.h"
template <class T>
diff --git a/libcxx/test/std/utilities/template.bitset/bitset.cons/char_ptr_ctor.pass.cpp b/libcxx/test/std/utilities/template.bitset/bitset.cons/char_ptr_ctor.pass.cpp
index 1ece47ed37457d..86b144ed87b702 100644
--- a/libcxx/test/std/utilities/template.bitset/bitset.cons/char_ptr_ctor.pass.cpp
+++ b/libcxx/test/std/utilities/template.bitset/bitset.cons/char_ptr_ctor.pass.cpp
@@ -12,9 +12,10 @@
// charT zero = charT('0'), charT one = charT('1')); // constexpr since C++23
#include <bitset>
-#include <cassert>
#include <algorithm> // for 'min' and 'max'
+#include <cassert>
#include <stdexcept> // for 'invalid_argument'
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.apply/make_from_tuple.pass.cpp b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.apply/make_from_tuple.pass.cpp
index accb601dd00365..34b79b38d2b959 100644
--- a/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.apply/make_from_tuple.pass.cpp
+++ b/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.apply/make_from_tuple.pass.cpp
@@ -14,9 +14,10 @@
#include <tuple>
#include <array>
-#include <utility>
-#include <string>
#include <cassert>
+#include <cstdint>
+#include <string>
+#include <utility>
#include "test_macros.h"
#include "type_id.h"
@@ -197,7 +198,7 @@ void test_noexcept() {
namespace LWG3528 {
template <class T, class Tuple>
-auto test_make_from_tuple(T&&, Tuple&& t) -> decltype(std::make_from_tuple<T>(t), uint8_t()) {
+auto test_make_from_tuple(T&&, Tuple&& t) -> decltype(std::make_from_tuple<T>(t), std::uint8_t()) {
return 0;
}
template <class T, class Tuple>
@@ -207,14 +208,14 @@ uint32_t test_make_from_tuple(...) {
template <class T, class Tuple>
static constexpr bool can_make_from_tuple =
- std::is_same_v<decltype(test_make_from_tuple<T, Tuple>(T{}, Tuple{})), uint8_t>;
+ std::is_same_v<decltype(test_make_from_tuple<T, Tuple>(T{}, Tuple{})), std::uint8_t>;
#ifdef _LIBCPP_VERSION
template <class T, class Tuple>
auto test_make_from_tuple_impl(T&&, Tuple&& t)
-> decltype(std::__make_from_tuple_impl<T>(
t, typename std::__make_tuple_indices< std::tuple_size_v<std::remove_reference_t<Tuple>>>::type{}),
- uint8_t()) {
+ std::uint8_t()) {
return 0;
}
template <class T, class Tuple>
@@ -224,7 +225,7 @@ uint32_t test_make_from_tuple_impl(...) {
template <class T, class Tuple>
static constexpr bool can_make_from_tuple_impl =
- std::is_same_v<decltype(test_make_from_tuple_impl<T, Tuple>(T{}, Tuple{})), uint8_t>;
+ std::is_same_v<decltype(test_make_from_tuple_impl<T, Tuple>(T{}, Tuple{})), std::uint8_t>;
#endif // _LIBCPP_VERSION
struct A {
diff --git a/libcxx/test/std/utilities/utility/mem.res/mem.poly.allocator.class/mem.poly.allocator.mem/default_type.compile.pass.cpp b/libcxx/test/std/utilities/utility/mem.res/mem.poly.allocator.class/mem.poly.allocator.mem/default_type.compile.pass.cpp
index 0e5175c2a4d6bf..d22b33168d65be 100644
--- a/libcxx/test/std/utilities/utility/mem.res/mem.poly.allocator.class/mem.poly.allocator.mem/default_type.compile.pass.cpp
+++ b/libcxx/test/std/utilities/utility/mem.res/mem.poly.allocator.class/mem.poly.allocator.mem/default_type.compile.pass.cpp
@@ -13,6 +13,7 @@
// UNSUPPORTED: no-rtti
#include <memory_resource>
+#include <cstddef>
#include <type_traits>
static_assert(std::is_same_v<std::pmr::polymorphic_allocator<>, std::pmr::polymorphic_allocator<std::byte>>);
diff --git a/libcxx/test/std/utilities/utility/pairs/pairs.pair/special_member_generation_test.pass.cpp b/libcxx/test/std/utilities/utility/pairs/pairs.pair/special_member_generation_test.pass.cpp
index f03f8bf895b2c6..4ec2f692e7635b 100644
--- a/libcxx/test/std/utilities/utility/pairs/pairs.pair/special_member_generation_test.pass.cpp
+++ b/libcxx/test/std/utilities/utility/pairs/pairs.pair/special_member_generation_test.pass.cpp
@@ -23,6 +23,7 @@
#include <cassert>
#include <string>
#include <tuple>
+#include <utility>
#include "archetypes.h"
diff --git a/libcxx/test/std/utilities/utility/utility.intcmp/intcmp.cmp_greater_equal/cmp_greater_equal.pass.cpp b/libcxx/test/std/utilities/utility/utility.intcmp/intcmp.cmp_greater_equal/cmp_greater_equal.pass.cpp
index 90518be22a14dc..c4963458a73f65 100644
--- a/libcxx/test/std/utilities/utility/utility.intcmp/intcmp.cmp_greater_equal/cmp_greater_equal.pass.cpp
+++ b/libcxx/test/std/utilities/utility/utility.intcmp/intcmp.cmp_greater_equal/cmp_greater_equal.pass.cpp
@@ -13,10 +13,11 @@
// constexpr bool cmp_greater_equal(T t, U u) noexcept; // C++20
#include <utility>
+#include <cassert>
#include <limits>
#include <numeric>
#include <tuple>
-#include <cassert>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/support/format.functions.common.h b/libcxx/test/support/format.functions.common.h
index 473b4efe690b0c..a6a6635d0945be 100644
--- a/libcxx/test/support/format.functions.common.h
+++ b/libcxx/test/support/format.functions.common.h
@@ -15,11 +15,12 @@
#include <cctype>
#include <charconv>
#include <cstddef>
+#include <cstdint>
#include <cstdlib>
#include <format>
#include <ranges>
-#include <string>
#include <string_view>
+#include <string>
#include <vector>
#include "make_string.h"
diff --git a/libcxx/test/support/hexfloat.h b/libcxx/test/support/hexfloat.h
index 23ad9a3f976272..b0285b048daa6a 100644
--- a/libcxx/test/support/hexfloat.h
+++ b/libcxx/test/support/hexfloat.h
@@ -14,8 +14,9 @@
#ifndef HEXFLOAT_H
#define HEXFLOAT_H
-#include <cmath>
#include <climits>
+#include <cmath>
+#include <cstddef>
template <class T>
class hexfloat
diff --git a/libcxx/test/support/operator_hijacker.h b/libcxx/test/support/operator_hijacker.h
index 15add460d37680..fbd8b58ab0f83c 100644
--- a/libcxx/test/support/operator_hijacker.h
+++ b/libcxx/test/support/operator_hijacker.h
@@ -10,9 +10,10 @@
#define SUPPORT_OPERATOR_HIJACKER_H
#include <cstddef>
-#include <memory>
#include <functional>
+#include <memory>
#include <string>
+#include <type_traits>
#include "test_macros.h"
diff --git a/libcxx/test/support/test.workarounds/c1xx_broken_za_ctor_check.pass.cpp b/libcxx/test/support/test.workarounds/c1xx_broken_za_ctor_check.pass.cpp
index 4eb1677e71e63c..4d55c62550422b 100644
--- a/libcxx/test/support/test.workarounds/c1xx_broken_za_ctor_check.pass.cpp
+++ b/libcxx/test/support/test.workarounds/c1xx_broken_za_ctor_check.pass.cpp
@@ -11,6 +11,7 @@
// Verify TEST_WORKAROUND_MSVC_BROKEN_ZA_CTOR_CHECK.
#include <type_traits>
+#include <utility>
#include "test_macros.h"
#include "test_workarounds.h"
diff --git a/libcxx/test/support/test_convertible.h b/libcxx/test/support/test_convertible.h
index becbb2b93336fe..805639716d91d2 100644
--- a/libcxx/test/support/test_convertible.h
+++ b/libcxx/test/support/test_convertible.h
@@ -14,7 +14,7 @@
// Unlike 'std::is_convertible' which only allows checking for single argument
// conversions.
-#include <type_traits>
+#include <utility>
#include "test_macros.h"
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