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1 // { dg-options "-std=gnu++14" }
4 // Copyright (C) 2013-2016 Free Software Foundation, Inc.
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)
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.
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/>.
21 #include <experimental/optional>
22 #include <testsuite_hooks.h>
36 operator==(value_type
const& lhs
, value_type
const& rhs
)
37 { return std::tie(lhs
.i
, lhs
.s
) == std::tie(rhs
.i
, rhs
.s
); }
40 operator<(value_type
const& lhs
, value_type
const& rhs
)
41 { return std::tie(lhs
.i
, lhs
.s
) < std::tie(rhs
.i
, rhs
.s
); }
48 using O
= std::experimental::optional
<value_type
>;
50 value_type
const reference
{ 42, "forty-two" };
54 VERIFY( o
< reference
);
55 VERIFY( !(reference
< o
) );
56 VERIFY( !(o
> reference
) );
57 VERIFY( reference
> o
);
58 VERIFY( o
<= reference
);
59 VERIFY( !(reference
<= o
) );
60 VERIFY( !(o
>= reference
) );
61 VERIFY( reference
>= o
);
65 O o
{ value_type
{ 11, "eleventy" } };
66 VERIFY( o
< reference
);
67 VERIFY( !(reference
< o
) );
68 VERIFY( !(o
> reference
) );
69 VERIFY( reference
> o
);
70 VERIFY( o
<= reference
);
71 VERIFY( !(reference
<= o
) );
72 VERIFY( !(o
>= reference
) );
73 VERIFY( reference
>= o
);
77 O o
{ value_type
{ 42, "forty-two" } };
78 VERIFY( !(o
< reference
) );
79 VERIFY( !(reference
< o
) );
80 VERIFY( !(o
> reference
) );
81 VERIFY( !(reference
> o
) );
82 VERIFY( o
<= reference
);
83 VERIFY( reference
<= o
);
84 VERIFY( o
>= reference
);
85 VERIFY( reference
>= o
);