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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/experimental/optional/constexpr/make_optional.cc
1 // { dg-options "-std=gnu++14" }
3 // Copyright (C) 2013-2016 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a moved_to of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
20 #include <experimental/optional>
21 #include <testsuite_hooks.h>
26 constexpr auto o
= std::experimental::make_optional(i
);
27 static_assert( std::is_same
<decltype(o
), const std::experimental::optional
<int>>(), "" );
28 static_assert( o
&& *o
== 42, "" );
29 static_assert( &*o
!= &i
, "" );