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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/shared_ptr/comparison/less.cc
1 // { dg-options "-std=gnu++11" }
3 // Copyright (C) 2008-2016 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
20 // 20.8.13.2 Template class shared_ptr [util.smartptr.shared]
23 #include <testsuite_hooks.h>
30 struct less
<A
*> : binary_function
<A
*,A
*,bool>
33 bool operator()(A
* l
, A
* r
) { ++count
; return l
< r
; }
35 int less
<A
*>::count
= 0;
38 // 20.8.13.2.7 shared_ptr comparison [util.smartptr.shared.cmp]
44 bool test
__attribute__((unused
)) = true;
46 std::less
<std::shared_ptr
<A
>> less
;
47 // test empty shared_ptrs compare equivalent
48 std::shared_ptr
<A
> p1
;
49 std::shared_ptr
<A
> p2
;
50 VERIFY( !less(p1
, p2
) && !less(p2
, p1
) );
51 VERIFY( std::less
<A
*>::count
== 2 );
56 // Construction from pointer
60 bool test
__attribute__((unused
)) = true;
62 std::less
<std::shared_ptr
<A
>> less
;
64 std::shared_ptr
<A
> empty
;
65 std::shared_ptr
<A
> p1(new A
);
66 std::shared_ptr
<A
> p2(new A
);
68 VERIFY( less(p1
, p2
) || less(p2
, p1
) );
69 VERIFY( !(less(p1
, p2
) && less(p2
, p1
)) );
72 VERIFY( !less(p1
, empty
) && !less(empty
, p1
) );
75 VERIFY( !less(p1
, p2
) && !less(p2
, p1
) );
84 bool test
__attribute__((unused
)) = true;
86 std::less
<std::shared_ptr
<A
>> less
;
89 std::shared_ptr
<A
> p1(new A
);
90 std::shared_ptr
<A
> p2(p1
, &a
);
91 VERIFY( less(p1
, p2
) || less(p2
, p1
) );