[libcxx-commits] [libcxx] [libc++][math] Add `constexpr` for `std::signbit()` (PR #105946)

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``````````bash
git-clang-format --diff 99b85cae628c1cc5641944290712cd84ccf1f6c8 17bd05b1f03e10982b60993abfa7cd850b592140 --extensions h,cpp -- libcxx/test/std/numerics/c.math/signbit.pass.cpp libcxx/include/__math/traits.h libcxx/test/libcxx/numerics/c.math/constexpr-cxx23-clang.pass.cpp libcxx/test/libcxx/numerics/c.math/constexpr-cxx23-gcc.pass.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/libcxx/test/std/numerics/c.math/signbit.pass.cpp b/libcxx/test/std/numerics/c.math/signbit.pass.cpp
index f8b9a9e5d3..f31c139cbd 100644
--- a/libcxx/test/std/numerics/c.math/signbit.pass.cpp
+++ b/libcxx/test/std/numerics/c.math/signbit.pass.cpp
@@ -89,7 +89,8 @@ struct ConvertibleTo {
 
 int main(int, char**) {
   types::for_each(types::floating_point_types(), TestFloat());
-  types::for_each(types::concatenate_t<types::unsigned_integer_types, types::type_list<char8_t, char16_t, char32_t>>(), TestUnsignedIntAndChar());
+  types::for_each(types::concatenate_t<types::unsigned_integer_types, types::type_list<char8_t, char16_t, char32_t>>(),
+                  TestUnsignedIntAndChar());
   types::for_each(types::concatenate_t<types::signed_integer_types, types::type_list<char>>(), TestSignedIntAndChar());
 
   // Make sure we can call `std::signbit` with convertible types

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https://github.com/llvm/llvm-project/pull/105946