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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/19_diagnostics/error_code/hash.cc
1 // Copyright (C) 2019-2022 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // { dg-do run { target c++11 } }
20 #include <system_error>
21 #include <testsuite_hooks.h>
23 struct error_cat
: std::error_category
25 error_cat(std::string s
) : _name(s
) { }
27 const char* name() const noexcept override
{ return _name
.c_str(); }
28 std::string
message(int) const override
{ return "error"; }
34 std::hash
<std::error_code
> h
;
35 error_cat
kitty("kitty"), moggy("moggy");
36 std::error_code
cond1(99, kitty
);
37 VERIFY( h(cond1
) == h(cond1
) );
38 std::error_code
cond2(99, kitty
);
39 VERIFY( h(cond1
) == h(cond2
) );
40 std::error_code
cond3(88, kitty
);
41 VERIFY( h(cond1
) != h(cond3
) );
42 std::error_code
cond4(99, moggy
);
43 VERIFY( h(cond1
) != h(cond4
) );