Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/intro4.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-options "-std=c++17 -fconcepts" } template<typename ... T> concept bool C1 = true; template<int ... N> concept bool C2 = true; template<typename T> concept bool C3 = __is_class(T); template<typename ... T> concept bool C4() { return true; } template<int N> concept bool C4() { return true; } template<typename T, typename U = int> concept bool C5() { return __is_class(U); } C1{...A, B} void f1() {}; // { dg-error "no matching|wrong number" } C1{A} void f2() {} // { dg-error "cannot match pack|no matching concept" } C2{A, B} void f3() {}; // { dg-error "cannot match pack|no matching concept" } C3{...A} void f4() {}; // { dg-error "cannot match pack|no matching concept" } C4{A} void f5() {}; // { dg-error "no matching concept" } C5{A, B} void f6() {}; int main() { // Defaults should not transfer f6<int>(); // { dg-error "no matching" } return 0; }