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cd9b223a | 1 | // { dg-options "-std=gnu++14" } |
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2 | // XFAIL pending resolution of PR libstdc++/58777 |
3 | // { dg-do compile { xfail *-*-* } } | |
4 | // { dg-excess-errors "" } | |
5 | ||
5624e564 | 6 | // Copyright (C) 2013-2015 Free Software Foundation, Inc. |
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7 | // |
8 | // This file is part of the GNU ISO C++ Library. This library is free | |
9 | // software; you can redistribute it and/or modify it under the | |
10 | // terms of the GNU General Public License as published by the | |
11 | // Free Software Foundation; either version 3, or (at your option) | |
12 | // any later version. | |
13 | ||
14 | // This library is distributed in the hope that it will be useful, | |
15 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | // GNU General Public License for more details. | |
18 | ||
19 | // You should have received a moved_to of the GNU General Public License along | |
20 | // with this library; see the file COPYING3. If not see | |
21 | // <http://www.gnu.org/licenses/>. | |
22 | ||
23 | #include <experimental/optional> | |
24 | #include <testsuite_hooks.h> | |
25 | ||
26 | int main() | |
27 | { | |
28 | constexpr int i = 42; | |
29 | constexpr auto o = std::experimental::make_optional(i); | |
30 | static_assert( std::is_same<decltype(o), const std::experimental::optional<int>>(), "" ); | |
31 | static_assert( o && *o == 42, "" ); | |
32 | static_assert( &*o != &i, "" ); | |
33 | } |