[libcxx-commits] [libcxx] Libcxx ranges contains subrange (PR #76760)

via libcxx-commits libcxx-commits at lists.llvm.org
Tue Jan 2 14:43:59 PST 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-libcxx

Author: None (ZijunZhaoCCK)

<details>
<summary>Changes</summary>



---

Patch is 21.00 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/76760.diff


6 Files Affected:

- (modified) libcxx/include/CMakeLists.txt (+1) 
- (added) libcxx/include/__algorithm/ranges_contains_subrange.h (+145) 
- (modified) libcxx/include/algorithm (+14) 
- (modified) libcxx/test/libcxx/algorithms/ranges_robust_against_copying_projections.pass.cpp (+2) 
- (added) libcxx/test/std/algorithms/alg.nonmodifying/alg.contains/ranges.contains_subrange.pass.cpp (+303) 
- (modified) libcxx/test/std/library/description/conventions/customization.point.object/niebloid.compile.pass.cpp (+1) 


``````````diff
diff --git a/libcxx/include/CMakeLists.txt b/libcxx/include/CMakeLists.txt
index 0fe3ab44d2466e..dd3ff541fbc7ba 100644
--- a/libcxx/include/CMakeLists.txt
+++ b/libcxx/include/CMakeLists.txt
@@ -110,6 +110,7 @@ set(files
   __algorithm/ranges_binary_search.h
   __algorithm/ranges_clamp.h
   __algorithm/ranges_contains.h
+  __algorithm/ranges_contains_subrange.h
   __algorithm/ranges_copy.h
   __algorithm/ranges_copy_backward.h
   __algorithm/ranges_copy_if.h
diff --git a/libcxx/include/__algorithm/ranges_contains_subrange.h b/libcxx/include/__algorithm/ranges_contains_subrange.h
new file mode 100644
index 00000000000000..d4fcb8c08a24aa
--- /dev/null
+++ b/libcxx/include/__algorithm/ranges_contains_subrange.h
@@ -0,0 +1,145 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP___ALGORITHM_RANGES_CONTAINS_SUBRANGE_H
+#define _LIBCPP___ALGORITHM_RANGES_CONTAINS_SUBRANGE_H
+
+#include <__algorithm/ranges_search.h>
+#include <__config>
+#include <__functional/identity.h>
+#include <__functional/ranges_operations.h>
+#include <__functional/reference_wrapper.h>
+#include <__iterator/concepts.h>
+#include <__iterator/distance.h>
+#include <__iterator/indirectly_comparable.h>
+#include <__iterator/projected.h>
+#include <__ranges/access.h>
+#include <__ranges/concepts.h>
+#include <__utility/move.h>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#  pragma GCC system_header
+#endif
+
+#if _LIBCPP_STD_VER >= 23
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+namespace ranges {
+namespace __contains_subrange {
+struct __fn {
+  template <forward_iterator _Iter1,
+            sentinel_for<_Iter1> _Sent1,
+            forward_iterator _Iter2,
+            sentinel_for<_Iter2> _Sent2,
+            class _Pred,
+            class _Proj1,
+            class _Proj2,
+            class _Offset = int>
+  static _LIBCPP_HIDE_FROM_ABI constexpr bool __contains_subrange_fn_impl(
+      _Iter1 __first1,
+      _Sent1 __last1,
+      _Iter2 __first2,
+      _Sent2 __last2,
+      _Pred& __pred,
+      _Proj1& __proj1,
+      _Proj2& __proj2,
+      _Offset __offset) {
+    if (__offset < 0)
+      return false;
+    else {
+      auto result = ranges::search(
+          std::move(__first1),
+          std::move(__last1),
+          std::move(__first2),
+          std::move(__last2),
+          std::ref(__pred),
+          std::ref(__proj1),
+          std::ref(__proj2));
+      return result.empty() == false;
+    }
+  }
+
+  template <forward_iterator _Iter1,
+            sentinel_for<_Iter1> _Sent1,
+            forward_iterator _Iter2,
+            sentinel_for<_Iter2> _Sent2,
+            class _Pred  = ranges::equal_to,
+            class _Proj1 = identity,
+            class _Proj2 = identity>
+    requires indirectly_comparable<_Iter1, _Iter2, _Pred, _Proj1, _Proj2>
+  _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool operator()(
+      _Iter1 __first1,
+      _Sent1 __last1,
+      _Iter2 __first2,
+      _Sent2 __last2,
+      _Pred __pred   = {},
+      _Proj1 __proj1 = {},
+      _Proj2 __proj2 = {}) const {
+    int __n1     = ranges::distance(__first1, __last1);
+    int __n2     = ranges::distance(__first2, __last2);
+    if (__n2 == 0)
+      return true;
+    int __offset = __n1 - __n2;
+
+    return __contains_subrange_fn_impl(
+        std::move(__first1),
+        std::move(__last1),
+        std::move(__first2),
+        std::move(__last2),
+        __pred,
+        __proj1,
+        __proj2,
+        std::move(__offset));
+  }
+
+  template <forward_range _Range1,
+            forward_range _Range2,
+            class _Pred  = ranges::equal_to,
+            class _Proj1 = identity,
+            class _Proj2 = identity>
+    requires indirectly_comparable<iterator_t<_Range1>, iterator_t<_Range2>, _Pred, _Proj1, _Proj2>
+  _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool operator()(
+      _Range1&& __range1, _Range2&& __range2, _Pred __pred = {}, _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const {
+    int __n1 = 0;
+    int __n2 = 0;
+
+    if constexpr (sized_range<_Range1> && sized_range<_Range2>) {
+      __n1 = ranges::size(__range1);
+      __n2 = ranges::size(__range2);
+    } else {
+      __n1 = ranges::distance(__range1);
+      __n2 = ranges::distance(__range2);
+    }
+
+    if (__n2 == 0)
+      return true;
+    int __offset = __n1 - __n2;
+    return __contains_subrange_fn_impl(
+        ranges::begin(__range1),
+        ranges::end(__range1),
+        ranges::begin(__range2),
+        ranges::end(__range2),
+        __pred,
+        __proj1,
+        __proj2,
+        __offset);
+  }
+};
+} // namespace __contains_subrange
+
+inline namespace __cpo {
+inline constexpr auto contains_subrange = __contains_subrange::__fn{};
+} // namespace __cpo
+} // namespace ranges
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_STD_VER >= 23
+
+#endif // _LIBCPP___ALGORITHM_RANGES_CONTAINS_SUBRANGE_H
diff --git a/libcxx/include/algorithm b/libcxx/include/algorithm
index 1176602a2b6951..7c490ef40ac5f8 100644
--- a/libcxx/include/algorithm
+++ b/libcxx/include/algorithm
@@ -217,6 +217,19 @@ namespace ranges {
     constexpr ranges::minmax_element_result<borrowed_iterator_t<R>>
       minmax_element(R&& r, Comp comp = {}, Proj proj = {});                                              // since C++20
 
+  template<forward_iterator I1, sentinel_for<I1> S1, forward_iterator I2,
+    sentinel_for<I2> S2, class Pred = ranges::equal_to, class Proj1 = identity,
+    class Proj2 = identity>
+    requires indirectly_comparable<I1, I2, Pred, Proj1, Proj2>
+    constexpr bool ranges::contains_subrange(I1 first1, S1 last1, I2 first2,
+      S2 last2, Pred pred = {}, Proj1 proj1 = {}, Proj2 proj2 = {});                        // since C++23
+
+  template<forward_range R1, forward_range R2,
+    class Pred = ranges::equal_to, class Proj1 = identity, class Proj2 = identity>
+    requires indirectly_comparable<iterator_t<R1>, iterator_t<R2>, Pred, Proj1, Proj2>
+    constexpr bool ranges::contains_subrange(R1&& r1, R2&& r2, Pred pred = {},
+      Proj1 proj1 = {}, Proj2 proj2 = {});                                                  // since C++23
+
   template<class I, class O>
     using copy_result = in_out_result<I, O>;                                                // since C++20
 
@@ -1875,6 +1888,7 @@ template <class BidirectionalIterator, class Compare>
 #include <__algorithm/ranges_binary_search.h>
 #include <__algorithm/ranges_clamp.h>
 #include <__algorithm/ranges_contains.h>
+#include <__algorithm/ranges_contains_subrange.h>
 #include <__algorithm/ranges_copy.h>
 #include <__algorithm/ranges_copy_backward.h>
 #include <__algorithm/ranges_copy_if.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 e96a57f4005e04..cc031867b908a3 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
@@ -86,6 +86,8 @@ constexpr bool all_the_algorithms()
     assert(copies == 0);
     (void)std::ranges::contains(a, value, Proj(&copies));
     assert(copies == 0);
+    (void)std::ranges::contains_subrange(first, last, first2, last2, Equal(), Proj(&copies), Proj(&copies)); assert(copies == 0);
+    (void)std::ranges::contains_subrange(a, b, Equal(), Proj(&copies), Proj(&copies)); assert(copies == 0);
 #endif
     (void)std::ranges::count(first, last, value, Proj(&copies)); assert(copies == 0);
     (void)std::ranges::count(a, value, Proj(&copies)); assert(copies == 0);
diff --git a/libcxx/test/std/algorithms/alg.nonmodifying/alg.contains/ranges.contains_subrange.pass.cpp b/libcxx/test/std/algorithms/alg.nonmodifying/alg.contains/ranges.contains_subrange.pass.cpp
new file mode 100644
index 00000000000000..0b7a2359b2b666
--- /dev/null
+++ b/libcxx/test/std/algorithms/alg.nonmodifying/alg.contains/ranges.contains_subrange.pass.cpp
@@ -0,0 +1,303 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// <algorithm>
+
+// UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
+// ADDITIONAL_COMPILE_FLAGS(has-fconstexpr-steps): -fconstexpr-steps=2000000
+
+// template<input_iterator I, sentinel_for<I> S, class T, class Proj = identity>
+//     requires indirect_binary_predicate<ranges::equal_to, projected<I, Proj>, const T*>
+//     constexpr bool ranges::contains(I first, S last, const T& value, Proj proj = {});       // since C++23
+
+// template<input_range R, class T, class Proj = identity>
+//     requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<R>, Proj>, const T*>
+//     constexpr bool ranges::contains(R&& r, const T& value, Proj proj = {});                 // since C++23
+
+#include <algorithm>
+#include <array>
+#include <cassert>
+#include <ranges>
+#include <vector>
+
+#include "almost_satisfies_types.h"
+#include "boolean_testable.h"
+#include "test_iterators.h"
+
+struct NotEqualityComparable {};
+
+template <class Iter1, class Sent1 = Iter1, class Iter2 = int*, class Sent2 = Iter2>
+concept HasContainsSubrangeIt = requires(Iter1 first1, Sent1 last1, Iter2 first2, Sent2 last2) {
+  std::ranges::contains_subrange(first1, last1, first2, last2);
+};
+
+static_assert(HasContainsSubrangeIt<int*>);
+static_assert(!HasContainsSubrangeIt<ForwardIteratorNotDerivedFrom>);
+static_assert(!HasContainsSubrangeIt<ForwardIteratorNotIncrementable>);
+static_assert(!HasContainsSubrangeIt<int*, SentinelForNotSemiregular>);
+static_assert(!HasContainsSubrangeIt<int*, int*, int**>); // not indirectly comparable
+static_assert(!HasContainsSubrangeIt<int*, SentinelForNotWeaklyEqualityComparableWith>);
+static_assert(!HasContainsSubrangeIt<int*, int*, ForwardIteratorNotDerivedFrom>);
+static_assert(!HasContainsSubrangeIt<int*, int*, ForwardIteratorNotIncrementable>);
+static_assert(!HasContainsSubrangeIt<int*, int*, int*, SentinelForNotSemiregular>);
+static_assert(!HasContainsSubrangeIt<int*, int*, int*, SentinelForNotWeaklyEqualityComparableWith>);
+
+template <class Range1, class Range2 = UncheckedRange<int*>>
+concept HasContainsSubrangeR = requires(Range1&& range1, Range2&& range2) {
+  std::ranges::contains_subrange(std::forward<Range1>(range1), std::forward<Range2>(range2)); };
+
+static_assert(HasContainsSubrangeR<UncheckedRange<int*>>);
+static_assert(!HasContainsSubrangeR<ForwardRangeNotDerivedFrom>);
+static_assert(!HasContainsSubrangeR<ForwardIteratorNotIncrementable>);
+static_assert(!HasContainsSubrangeR<ForwardRangeNotSentinelSemiregular>);
+static_assert(!HasContainsSubrangeR<ForwardRangeNotSentinelEqualityComparableWith>);
+static_assert(!HasContainsSubrangeR<UncheckedRange<int*>, UncheckedRange<int**>>); // not indirectly comparable
+static_assert(!HasContainsSubrangeR<UncheckedRange<int*>, ForwardRangeNotDerivedFrom>);
+static_assert(!HasContainsSubrangeR<UncheckedRange<int*>, ForwardRangeNotIncrementable>);
+static_assert(!HasContainsSubrangeR<UncheckedRange<int*>, ForwardRangeNotSentinelSemiregular>);
+static_assert(!HasContainsSubrangeR<UncheckedRange<int*>, ForwardRangeNotSentinelEqualityComparableWith>);
+
+template <class Iter1, class Sent1 = Iter1, class Iter2, class Sent2 = Iter2>
+constexpr void test_iterators() {
+  {  // simple tests
+    int a[]       = {1, 2, 3, 4, 5, 6};
+    int p[]       = {3, 4, 5};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 6)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    {
+      [[maybe_unused]] std::same_as<bool> decltype(auto) ret =
+          std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(ret);
+    }
+    {
+      [[maybe_unused]] std::same_as<bool> decltype(auto) ret = std::ranges::contains_subrange(whole, subrange);
+      assert(ret);
+    }
+  }
+
+  { // no match
+    int a[]       = {1, 2, 3, 4, 5, 6};
+    int p[]       = {3, 4, 2};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 6)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(!ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(!ret);
+    }
+  }
+
+  { // range consists of just one element
+    int a[]       = {3};
+    int p[]       = {3, 4, 2};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 1)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(!ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(!ret);
+    }
+  }
+
+  { // subrange consists of just one element
+    int a[]       = {23, 1, 20, 3, 54, 2};
+    int p[]       = {3};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 6)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 1)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(ret);
+    }
+  }
+
+  { // range has zero length
+    int a[]       = {};
+    int p[]       = {3, 4, 2};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(!ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(!ret);
+    }
+  }
+
+  { // subrange has zero length
+    int a[]       = {3, 4, 2};
+    int p[]       = {};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 3)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(ret);
+    }
+  }
+
+  { // range and subrange are identical
+    int a[]       = {3, 4, 11, 32, 54, 2};
+    int p[]       = {3, 4, 11, 32, 54, 2};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 6)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 6)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(ret);
+    }
+  }
+
+  { // subrange is longer than range
+    int a[]       = {3, 4, 2};
+    int p[]       = {23, 3, 4, 2, 11, 32, 54, 2};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 3)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 8)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(!ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(!ret);
+    }
+  }
+
+  { // subrange is subsequence
+    int a[]       = {23, 1, 0, 54, 2};
+    int p[]       = {1, 0, 2};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 5)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(!ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(!ret);
+    }
+  }
+
+  { // repeated subrange
+    int a[]       = {23, 1, 0, 2, 54, 1, 0, 2, 23, 33};
+    int p[]       = {1, 0, 2};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 10)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end());
+      assert(ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange);
+      assert(ret);
+    }
+  }
+
+  { // check that the predicate is used
+    int a[]       = {23, 81, 61, 0, 42, 25, 1, 2, 1, 29, 2};
+    int p[]       = {-1, -2, -1};
+    auto pred     = [](int l, int r) { return l * -1 == r; };
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 11)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    {
+      bool ret = std::ranges::contains_subrange(whole.begin(), whole.end(), subrange.begin(), subrange.end(), pred);
+      assert(ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(whole, subrange, pred);
+      assert(ret);
+    }
+  }
+
+  { // check that the projections are used
+    int a[]        = {1, 3, 15, 1, 2, 1, 8};
+    int p[]        = {2, 1, 2};
+    auto whole     = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 7)));
+    auto subrange  = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    {
+      bool ret = std::ranges::contains_subrange(
+          whole.begin(),
+          whole.end(),
+          subrange.begin(),
+          subrange.end(),
+          {},
+          [](int i) { return i - 3; },
+          [](int i) { return i * -1; });
+      assert(ret);
+    }
+    {
+      bool ret = std::ranges::contains_subrange(
+          whole, subrange, {}, [](int i) { return i - 3; }, [](int i) { return i * -1; });
+      assert(ret);
+    }
+  }
+
+  { // check the nodiscard extension
+// use #pragma around to suppress error: ignoring return value of function
+// declared with 'nodiscard' attribute [-Werror,-Wunused-result]
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-result"
+    int a[]       = {1, 9, 0, 13, 25};
+    int p[]       = {1, 9, 0};
+    auto whole    = std::ranges::subrange(Iter1(a), Sent1(Iter1(a + 5)));
+    auto subrange = std::ranges::subrange(Iter2(p), Sent2(Iter2(p + 3)));
+    std::ranges::contains_subrange(whole, subrange);
+#pragma clang diagnostic pop
+  }
+}
+
+template <class Iter1, class Sent1 = Iter1>
+constexpr void test_iterators2() {
+  test_iterators<Iter1, Sent1, forward_iterator<int*>>();
+  test_iterators<Iter1, Sent1, forward_iterator<int*>, sized_sentinel<forward_iterator<int*>>>();
+  test_iterators<Iter1, Sent1, bidirectional_iterator<int*>>();
+  test_iterators<Iter1, Sent1, bidirectional_iterator<int*>, sized_sentinel<bidirectional_iterator<int*>>>();
+  test_iterators<Iter1, Sent1, random_access_iterator<int*>>();
+  test_iterators<Iter1, Sent1, random_access_iterator<int*>, sized_sentinel<random_access_iterator<int*>>>();
+  test_iterators<Iter1, Sent1, contiguous_iterator<int*>>();
+  test_iterators<Iter1, Sent1, contiguous_iterator<int*>, sized_sentinel<contiguous_iterator<int*>>>();
+  test_iterators<Iter1, Sent1, int*>();
+}
+
+constexpr bool test() {
+  test_iterators2<forward_iterator<int*>>();
+  test_iterators2<forward_iterator<int*>, sized_sentinel<forward_iterator<int*>>>();
+  test_iterators2<bidirectional_iterator<int*>>();
+  test_iterators2<bidirectional_iterator<int*>, sized_sentinel<bidirectional_iterator<int*>>>();
+  test_iterators2<random_access_iterator<int*>>();
+  test_iterators2<random_access_iterator<int*>, sized_sentinel<random_access_iterator<int*>>>();
+  test_iterators2<contiguous_iterator<int*>>();
+  test_iterators2<contiguous_iterator<int*>, sized_sentinel<contiguous_it...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/76760


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