type_traits (enable_if): New.

[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 20_util / decay / requirements / typedefs.cc

// { dg-options "-std=gnu++0x" }

// 2007-05-03  Benjamin Kosnik  <bkoz@redhat.com>
//
// Copyright (C) 2007 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 2, 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 COPYING.  If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.

#include <cstdlib>
#include <type_traits>
#include <testsuite_hooks.h>

void test01()
{
  bool test __attribute__((unused)) = true;
  using std::decay;
  using std::is_same;

  // Positive tests.
  typedef decay<bool>::type     	test1_type;
  VERIFY( (is_same<test1_type, bool>::value) );

  typedef decay<const int>::type  	test2_type;
  VERIFY( (is_same<test2_type, const int>::value) );

  typedef decay<int[4]>::type     	test3_type;
  VERIFY( (is_same<test3_type, std::remove_extent<int[4]>::type*>::value) );

  typedef void (fn_type) ();
  typedef decay<fn_type>::type  	test4_type;
  VERIFY( (is_same<test4_type, std::add_pointer<fn_type>::type>::value) );
}

int main()
{
  test01();
  return 0;
}