Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/friend2.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
line wrap: on
line source
// { dg-do compile { target c++17 } } // { dg-options "-fconcepts" } template<typename T> concept bool Eq() { return requires(T t) { t == t; }; } template<Eq T> struct Foo { }; template<typename T> struct S { // { dg-error "constraint failure" } template<Eq U> friend class Bar; friend class Foo<T>; }; struct X { }; int main() { S<int> si; // OK S<X> sx; }