]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/unique_ptr/hash/1.cc
1 // { dg-do run { target c++11 } }
3 // 2010-06-11 Paolo Carlini <paolo.carlini@oracle.com>
5 // Copyright (C) 2010-2017 Free Software Foundation, Inc.
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3. If not see
20 // <http://www.gnu.org/licenses/>.
23 #include <testsuite_hooks.h>
24 #include <testsuite_allocator.h>
26 // User-defined pointer type that throws if a null pointer is dereferenced.
28 struct Pointer
: __gnu_test::PointerBase
<Pointer
<T
>, T
>
33 struct PointerDeleter
: std::default_delete
<T
>
35 typedef Pointer
<T
> pointer
;
36 void operator()(pointer
) const;
40 auto f(int) -> decltype(std::hash
<std::unique_ptr
<T
,
41 PointerDeleter
<T
>>>(), std::true_type());
44 auto f(...) -> decltype(std::false_type());
46 static_assert(!decltype(f
<Pointer
<int>>(0))::value
, "");
52 std::unique_ptr
<T
> u0(new T
);
53 std::hash
<std::unique_ptr
<T
>> hu0
;
54 std::hash
<typename
std::unique_ptr
<T
>::pointer
> hp0
;
56 VERIFY( hu0(u0
) == hp0(u0
.get()) );
58 std::unique_ptr
<T
[]> u1(new T
[10]);
59 std::hash
<std::unique_ptr
<T
[]>> hu1
;
60 std::hash
<typename
std::unique_ptr
<T
[]>::pointer
> hp1
;
62 VERIFY( hu1(u1
) == hp1(u1
.get()) );