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// { dg-options "-std=gnu++17" }
// { dg-do compile }

// Copyright (C) 2016-2019 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/>.

// NB: This file is for testing type_traits with NO OTHER INCLUDES.

#include <type_traits>

void test01()
{
  // Check for required typedefs
  typedef std::is_invocable<int>       test_type;
  static_assert( std::is_base_of_v<std::false_type, test_type> );
}

void test02()
{
  // Check for required typedefs
  typedef std::is_invocable_r<void, int>       test_type;
  static_assert( std::is_base_of_v<std::false_type, test_type> );
}