view gcc/testsuite/g++.dg/concepts/iconv1.C @ 131:84e7813d76e9

gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
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// PR c++/67240
// { dg-do compile { target c++17 } }
// { dg-options "-fconcepts" }

int foo(int x)
{
    return x;
}
 
template <typename T>
concept bool C1 = requires (T x) {
    {foo(x)} -> int&;
};

template <typename T>
concept bool C2 = requires (T x) {
    {foo(x)} -> void;
};
 
static_assert( C1<int> );	// { dg-error "assert" }
static_assert( C2<int> );	// { dg-error "assert" }