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| author | Patrick Palka <ppalka@redhat.com> | 2024-01-10 19:00:49 -0500 |
|---|---|---|
| committer | Patrick Palka <ppalka@redhat.com> | 2024-01-10 19:00:49 -0500 |
| commit | c84363b8c5c8b545ea922fd2aa12f14f17990815 (patch) | |
| tree | 70bc08ba89de55cb10e1e223dae39530e74a6d03 | |
| parent | 3b8ef3f25ed68790f77eea8ea445b7c9144c8ca6 (diff) | |
| download | gcc-c84363b8c5c8b545ea922fd2aa12f14f17990815.zip gcc-c84363b8c5c8b545ea922fd2aa12f14f17990815.tar.gz gcc-c84363b8c5c8b545ea922fd2aa12f14f17990815.tar.bz2 | |
libstdc++: Use _GLIBCXX_USE_BUILTIN_TRAIT for _Nth_type
Since _Nth_type has a fallback native implementation, use
_GLIBCXX_USE_BUILTIN_TRAIT when checking for __type_pack_element
so that we can easily toggle which implementation to use.
libstdc++-v3/ChangeLog:
* include/bits/utility.h (_Nth_type): Use
_GLIBCXX_USE_BUILTIN_TRAIT instead of __has_builtin.
| -rw-r--r-- | libstdc++-v3/include/bits/utility.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libstdc++-v3/include/bits/utility.h b/libstdc++-v3/include/bits/utility.h index 45d7241..d8a5fb9 100644 --- a/libstdc++-v3/include/bits/utility.h +++ b/libstdc++-v3/include/bits/utility.h @@ -225,7 +225,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION #endif // C++17 -#if __has_builtin(__type_pack_element) +#if _GLIBCXX_USE_BUILTIN_TRAIT(__type_pack_element) template<size_t _Np, typename... _Types> struct _Nth_type { using type = __type_pack_element<_Np, _Types...>; }; |