Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/concepts/placeholder5.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 84e7813d76e9 |
children |
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// { dg-do compile { target c++17_only } } // { dg-options "-fconcepts" } template <class T, class U> concept bool Same = __is_same_as(T, U); const int i = 0; template <class T> concept bool C = requires { { &i } -> const Same<T>*; // { dg-error "not a plain type-constraint" } }; template <C c> constexpr bool f() { return true; } static_assert(f<double>(), ""); // { dg-error "unsatisfied|as type" } static_assert(f<int>(), ""); // { dg-error "unsatisfied|as type" }