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view gcc/testsuite/g++.dg/concepts/placeholder5.C @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children 1830386684a0
line wrap: on
line source

// { dg-do compile { target c++17 } }
// { 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>*;
  };

template <C c>
constexpr bool f() { return true; }

static_assert(f<double>(), "");	// { dg-error "" }
static_assert(f<int>(), "");