Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/expression.C @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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// { dg-do run } // { dg-options "-std=c++17 -fconcepts" } #include <cassert> #include <iostream> template<typename T> concept bool C1 = __is_class(T); template<typename T> concept bool C2() { return __is_class(T); } template<typename T> concept bool C3() { return requires (T a) { ++a; }; } int main() { if (C1<int>) assert(false); if (C2<int>()) assert(false); if (!C3<int>()) assert(false); }