libstdc++-v3/testsuite/20_util/remove_reference/value.cc

// { dg-do compile { target c++11 } }

// 2007-06-02  Paolo Carlini  <pcarlini@suse.de>
//
// Copyright (C) 2007-2023 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/>.

#include <type_traits>
#include <testsuite_tr1.h>

void test01()
{
  using std::remove_reference;
  using std::is_same;
  using namespace __gnu_test;

  static_assert(is_same<remove_reference<int&>::type, int>::value, "");
  static_assert(is_same<remove_reference<int>::type, int>::value, "");
  static_assert(is_same<remove_reference<const int&>::type,
		const int>::value, "");
  static_assert(is_same<remove_reference<int*&>::type, int*>::value, "");
  static_assert(is_same<remove_reference<ClassType&>::type,
		ClassType>::value, "");
  static_assert(is_same<remove_reference<ClassType>::type,
		ClassType>::value, "");
  static_assert(is_same<remove_reference<int(&)(int)>::type,
		int(int)>::value, "");
  static_assert(is_same<remove_reference<int&&>::type, int>::value, "");
  static_assert(is_same<remove_reference<int>::type, int>::value, "");
  static_assert(is_same<remove_reference<const int&&>::type,
		const int>::value, "");
  static_assert(is_same<remove_reference<int*&&>::type, int*>::value, "");
  static_assert(is_same<remove_reference<ClassType&&>::type,
		ClassType>::value, "");
  static_assert(is_same<remove_reference<ClassType>::type,
		ClassType>::value, "");
  static_assert(is_same<remove_reference<int(&&)(int)>::type,
		int(int)>::value, "");
}