gcc/libstdc++-v3/testsuite/20_util/is_invocable/83395.cc

29 lines
1.1 KiB
C++

// Copyright (C) 2017 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=gnu++17" }
// { dg-do compile { target c++1z } }
#include <type_traits>
// PR libstdc++/83395
using F = int(*)();
static_assert(std::is_invocable_r<void, F>::value);
static_assert(std::is_invocable_r<void const, F>::value);
static_assert(std::is_invocable_r<void volatile, F>::value);
static_assert(std::is_invocable_r<void const volatile, F>::value);