diff options
| author | Jonathan Wakely <jwakely@redhat.com> | 2024-01-05 12:03:22 +0000 |
|---|---|---|
| committer | Jonathan Wakely <jwakely@redhat.com> | 2024-01-05 13:57:05 +0000 |
| commit | 57fa5b60bbbf8038b8a699d2bcebd2a9b2e29aa4 (patch) | |
| tree | 93bee231e7b7d2063e6fe2497c3364b053006e2a | |
| parent | 29abd09a744970bf2b93d078bad9946899ef2b05 (diff) | |
| download | gcc-57fa5b60bbbf8038b8a699d2bcebd2a9b2e29aa4.zip gcc-57fa5b60bbbf8038b8a699d2bcebd2a9b2e29aa4.tar.gz gcc-57fa5b60bbbf8038b8a699d2bcebd2a9b2e29aa4.tar.bz2 | |
libstdc++: Do not use __is_convertible unconditionally [PR113241]
The new __is_convertible built-in should only be used after checking
that it's supported.
libstdc++-v3/ChangeLog:
PR libstdc++/113241
* include/std/type_traits (is_convertible_v): Guard use of
built-in with preprocessor check.
| -rw-r--r-- | libstdc++-v3/include/std/type_traits | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index a71162b..3b1b419 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -3477,8 +3477,13 @@ template <typename _Tp> #endif template <typename _Base, typename _Derived> inline constexpr bool is_base_of_v = __is_base_of(_Base, _Derived); +#if _GLIBCXX_USE_BUILTIN_TRAIT(__is_convertible) template <typename _From, typename _To> inline constexpr bool is_convertible_v = __is_convertible(_From, _To); +#else +template <typename _From, typename _To> + inline constexpr bool is_convertible_v = is_convertible<_From, _To>::value; +#endif template<typename _Fn, typename... _Args> inline constexpr bool is_invocable_v = is_invocable<_Fn, _Args...>::value; template<typename _Fn, typename... _Args> |