]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/23_containers/unordered_map/allocator/swap.cc
1 // Copyright (C) 2013-2024 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 <unordered_map>
21 #include <testsuite_hooks.h>
22 #include <testsuite_allocator.h>
28 std::size_t operator()(const T t
) const noexcept
34 bool operator()(const T
& lhs
, const T
& rhs
) const noexcept
35 { return lhs
.i
== rhs
.i
; }
38 using __gnu_test::propagating_allocator
;
40 // It is undefined behaviour to swap() containers wth unequal allocators
41 // if the allocator doesn't propagate, so ensure the allocators compare
42 // equal, while still being able to test propagation via get_personality().
44 operator==(const propagating_allocator
<std::pair
<const T
, T
>, false>&,
45 const propagating_allocator
<std::pair
<const T
, T
>, false>&)
51 operator!=(const propagating_allocator
<std::pair
<const T
, T
>, false>&,
52 const propagating_allocator
<std::pair
<const T
, T
>, false>&)
59 typedef propagating_allocator
<std::pair
<const T
, T
>, false> alloc_type
;
60 typedef std::unordered_map
<T
, T
, hash
, equal_to
, alloc_type
> test_type
;
61 test_type
v1(alloc_type(1));
62 v1
.emplace(std::piecewise_construct
,
63 std::make_tuple(T()), std::make_tuple(T()));
64 test_type
v2(alloc_type(2));
65 v2
.emplace(std::piecewise_construct
,
66 std::make_tuple(T()), std::make_tuple(T()));
68 VERIFY(1 == v1
.get_allocator().get_personality());
69 VERIFY(2 == v2
.get_allocator().get_personality());
70 // swap back so assertions in uneq_allocator::deallocate don't fail
76 typedef propagating_allocator
<std::pair
<const T
, T
>, true> alloc_type
;
77 typedef std::unordered_map
<T
, T
, hash
, equal_to
, alloc_type
> test_type
;
78 test_type
v1(alloc_type(1));
79 v1
.emplace(std::piecewise_construct
,
80 std::make_tuple(T()), std::make_tuple(T()));
81 test_type
v2(alloc_type(2));
82 v2
.emplace(std::piecewise_construct
,
83 std::make_tuple(T()), std::make_tuple(T()));
85 VERIFY(2 == v1
.get_allocator().get_personality());
86 VERIFY(1 == v2
.get_allocator().get_personality());