1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
// Copyright (C) 2018-2024 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-do run { target c++11 } }
// { dg-require-effective-target hosted }
#include <memory>
#include <testsuite_hooks.h>
struct Should_not_happen { };
struct X { };
namespace std {
template<> struct less<X*> {
bool operator()(X*, X*) const { throw Should_not_happen(); }
};
}
bool custom_op_called = false;
bool
operator<(const std::shared_ptr<X>&, const std::shared_ptr<X>&)
{
custom_op_called = true;
return false;
}
void
test01()
{
const std::shared_ptr<X> sp;
bool b = sp < sp;
VERIFY( !b );
VERIFY( custom_op_called );
std::less<std::shared_ptr<X>> lt;
custom_op_called = false;
b = lt(sp, sp);
VERIFY( !b );
VERIFY( custom_op_called ); // PR libstdc++/86537 and LWG DR 1262
#if __cplusplus >= 201402L
std::less<> ltv;
custom_op_called = false;
b = ltv(sp, sp);
VERIFY( !b );
VERIFY( custom_op_called );
#endif
}
int
main()
{
test01();
}
|
