Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/variadic1.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children | 1830386684a0 |
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// PR c++/66712 // { dg-do compile { target c++17 } } // { dg-options "-fconcepts" } template <class T, class...Args> concept bool _Constructible_ = requires (Args&&...args) { T{ ((Args&&)(args))... }; }; template <class T, class...Args> constexpr bool _constructible_() { return false; } _Constructible_{T, ...Args} constexpr bool _constructible_() { return true; } struct S { S(int, char const *); }; int main() { static_assert(_constructible_<S, int, char const *>(), ""); }