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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/21_strings/basic_string/allocator/wchar_t/swap.cc
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1 // Copyright (C) 2015-2020 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 } }
19 // COW strings don't support C++11 allocators:
20 // { dg-require-effective-target cxx11-abi }
23 #include <testsuite_hooks.h>
24 #include <testsuite_allocator.h>
28 using traits
= std::char_traits
<C
>;
30 using __gnu_test::propagating_allocator
;
32 // It is undefined behaviour to swap() containers wth unequal allocators
33 // if the allocator doesn't propagate, so ensure the allocators compare
34 // equal, while still being able to test propagation via get_personality().
36 operator==(const propagating_allocator
<C
, false>&,
37 const propagating_allocator
<C
, false>&)
43 operator!=(const propagating_allocator
<C
, false>&,
44 const propagating_allocator
<C
, false>&)
51 typedef propagating_allocator
<C
, false> alloc_type
;
52 typedef std::basic_string
<C
, traits
, alloc_type
> test_type
;
53 test_type
v1(alloc_type(1));
55 test_type
v2(alloc_type(2));
58 VERIFY(1 == v1
.get_allocator().get_personality());
59 VERIFY(2 == v2
.get_allocator().get_personality());
60 // swap back so assertions in uneq_allocator::deallocate don't fail
66 typedef propagating_allocator
<C
, true> alloc_type
;
67 typedef std::basic_string
<C
, traits
, alloc_type
> test_type
;
68 test_type
v1(alloc_type(1));
70 test_type
v2(alloc_type(2));
73 VERIFY(2 == v1
.get_allocator().get_personality());
74 VERIFY(1 == v2
.get_allocator().get_personality());