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| author | Ken Matsui <kmatsui@gcc.gnu.org> | 2023-07-17 23:47:15 -0700 |
|---|---|---|
| committer | Ken Matsui <kmatsui@gcc.gnu.org> | 2024-01-10 20:08:26 -0800 |
| commit | 2105c49bbe826733eef5ab06d505d9345710f8d7 (patch) | |
| tree | 48f30dbacad55b5f56f072afbb42a2aba9605804 | |
| parent | 49a14ee488b8569abe318ca230ab115c36ca6b0c (diff) | |
| download | gcc-2105c49bbe826733eef5ab06d505d9345710f8d7.zip gcc-2105c49bbe826733eef5ab06d505d9345710f8d7.tar.gz gcc-2105c49bbe826733eef5ab06d505d9345710f8d7.tar.bz2 | |
libstdc++: Optimize std::is_compound compilation performance
This patch optimizes the compilation performance of std::is_compound.
libstdc++-v3/ChangeLog:
* include/std/type_traits (is_compound): Do not use __not_.
(is_compound_v): Use is_fundamental_v instead.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
| -rw-r--r-- | libstdc++-v3/include/std/type_traits | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 1cec082..b6b680a 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -751,7 +751,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION /// is_compound template<typename _Tp> struct is_compound - : public __not_<is_fundamental<_Tp>>::type { }; + : public __bool_constant<!is_fundamental<_Tp>::value> { }; /// is_member_pointer #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_pointer) @@ -3305,7 +3305,7 @@ template <typename _Tp> template <typename _Tp> inline constexpr bool is_scalar_v = is_scalar<_Tp>::value; template <typename _Tp> - inline constexpr bool is_compound_v = is_compound<_Tp>::value; + inline constexpr bool is_compound_v = !is_fundamental_v<_Tp>; #if _GLIBCXX_USE_BUILTIN_TRAIT(__is_member_pointer) template <typename _Tp> |