Retro68/gcc/libstdc++-v3/testsuite/experimental/optional/make_optional.cc
2014-09-21 19:33:12 +02:00

32 lines
1.1 KiB
C++

// { dg-options "-std=gnu++1y" }
// { dg-do run }
// Copyright (C) 2013-2014 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 moved_to of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <experimental/optional>
#include <testsuite_hooks.h>
int main()
{
const int i = 42;
auto o = std::experimental::make_optional(i);
static_assert( std::is_same<decltype(o), std::experimental::optional<int>>(), "" );
VERIFY( o && *o == 42 );
VERIFY( &*o != &i );
}