Message ID | 20221005124628.701564-1-jwakely@redhat.com |
---|---|
State | New |
Headers | show |
Series | [committed] libstdc++: Guard use of new built-in with __has_builtin | expand |
diff --git a/libstdc++-v3/include/bits/invoke.h b/libstdc++-v3/include/bits/invoke.h index 8724a764f73..8fa8cf876d8 100644 --- a/libstdc++-v3/include/bits/invoke.h +++ b/libstdc++-v3/include/bits/invoke.h @@ -130,8 +130,10 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION { using __result = __invoke_result<_Callable, _Args...>; using __type = typename __result::type; +#if __has_builtin(__reference_converts_from_temporary) static_assert(!__reference_converts_from_temporary(_Res, __type), "INVOKE<R> must not create a dangling reference"); +#endif using __tag = typename __result::__invoke_type; return std::__invoke_impl<__type>(__tag{}, std::forward<_Callable>(__fn), std::forward<_Args>(__args)...);