[libcxx-commits] [libcxx] [libc++] Fix UB in bitwise logic of {std, ranges}::{fill, fill_n} algorithms (PR #122410)

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git-clang-format --diff 6ffc4451037bbae26cce51fb80418f8e9ed2ac84 5349b7c7796dbee31251cacc62a3ad4ca26e7db2 --extensions h,,cpp -- libcxx/test/support/sized_allocator.h libcxx/include/__algorithm/fill_n.h libcxx/include/__bit_reference libcxx/include/__fwd/bit_reference.h libcxx/test/std/algorithms/alg.modifying.operations/alg.fill/fill.pass.cpp libcxx/test/std/algorithms/alg.modifying.operations/alg.fill/fill_n.pass.cpp libcxx/test/std/algorithms/alg.modifying.operations/alg.fill/ranges.fill.pass.cpp libcxx/test/std/algorithms/alg.modifying.operations/alg.fill/ranges.fill_n.pass.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/libcxx/include/__bit_reference b/libcxx/include/__bit_reference
index 77ca62bfbe..40b983075c 100644
--- a/libcxx/include/__bit_reference
+++ b/libcxx/include/__bit_reference
@@ -10,9 +10,9 @@
 #ifndef _LIBCPP___BIT_REFERENCE
 #define _LIBCPP___BIT_REFERENCE
 
-#include <__assert>
 #include <__algorithm/copy_n.h>
 #include <__algorithm/min.h>
+#include <__assert>
 #include <__bit/countr.h>
 #include <__compare/ordering.h>
 #include <__config>
@@ -24,8 +24,8 @@
 #include <__memory/pointer_traits.h>
 #include <__type_traits/conditional.h>
 #include <__type_traits/enable_if.h>
-#include <__type_traits/is_unsigned.h>
 #include <__type_traits/is_constant_evaluated.h>
+#include <__type_traits/is_unsigned.h>
 #include <__type_traits/void_t.h>
 #include <__utility/swap.h>
 #include <climits>

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https://github.com/llvm/llvm-project/pull/122410