Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/fn5.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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// { dg-do compile { target c++17 } } // { dg-options "-fconcepts" } // Check shorthand notation. template<typename T> concept bool Type() { return true; } template<typename T, typename U> concept bool Same() { return __is_same_as(T, U); } template<Same<int> T> struct S1 { }; template<typename T, Same<T> U> struct S2 { }; void f(Same<int> q) { } void g(Type a, Same<decltype(a)> b) { } int main() { S1<char> s1; // { dg-error "constraint|invalid" } S2<int, char> s2; // { dg-error "constraint|invalid" } f('a'); // { dg-error "cannot" } g(0, 'a'); // { dg-error "cannot" } }