This patch lets libstdc++ use new built-in trait __is_array. libstdc++-v3/ChangeLog:
* include/std/type_traits (is_array): Use __is_array built-in trait. --- libstdc++-v3/include/std/type_traits | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/libstdc++-v3/include/std/type_traits b/libstdc++-v3/include/std/type_traits index 2bd607a8b8f..a9b1a6eb62a 100644 --- a/libstdc++-v3/include/std/type_traits +++ b/libstdc++-v3/include/std/type_traits @@ -503,6 +503,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { }; /// is_array +#if __has_builtin(__is_array) + template<typename _Tp> + struct is_array + : public __bool_constant<__is_array(_Tp)> + { }; +#else template<typename> struct is_array : public false_type { }; @@ -514,6 +520,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION template<typename _Tp> struct is_array<_Tp[]> : public true_type { }; +#endif template<typename> struct __is_pointer_helper -- 2.40.0