1// { dg-options "-std=gnu++14" }
2// { dg-do run }
3
4// Copyright (C) 2013-2015 Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a moved_to of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21#include <experimental/optional>
22#include <testsuite_hooks.h>
23
24struct value_type
25{
26  int i;
27};
28
29int main()
30{
31  {
32    std::experimental::optional<value_type> o { value_type { 51 } };
33    VERIFY( o.value().i == 51 );
34    VERIFY( o.value().i == (*o).i );
35    VERIFY( &o.value().i == &(*o).i );
36  }
37
38  {
39    enum outcome_type { nothrow, caught, bad_catch };
40
41    outcome_type outcome {};
42    std::experimental::optional<value_type> o = std::experimental::nullopt;
43    bool called = false;
44    auto const eat = [&called](int) { called = true; };
45
46    try
47    {
48      eat(o.value().i);
49    }
50    catch(std::experimental::bad_optional_access const&)
51    { outcome = caught; }
52    catch(...)
53    { outcome = bad_catch; }
54
55    VERIFY( outcome == caught );
56    VERIFY( !called );
57  }
58}
59