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// Copyright (C) 2015-2018 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 } }
// COW strings don't support C++11 allocators:
// { dg-require-effective-target cxx11-abi }
#include <string>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>
using C = wchar_t;
const C c = L'a';
using traits = std::char_traits<C>;
using __gnu_test::propagating_allocator;
// It is undefined behaviour to swap() containers wth unequal allocators
// if the allocator doesn't propagate, so ensure the allocators compare
// equal, while still being able to test propagation via get_personality().
bool
operator==(const propagating_allocator<C, false>&,
const propagating_allocator<C, false>&)
{
return true;
}
bool
operator!=(const propagating_allocator<C, false>&,
const propagating_allocator<C, false>&)
{
return false;
}
void test01()
{
typedef propagating_allocator<C, false> alloc_type;
typedef std::basic_string<C, traits, alloc_type> test_type;
test_type v1(alloc_type(1));
v1.push_back(C());
test_type v2(alloc_type(2));
v2.push_back(C());
std::swap(v1, v2);
VERIFY(1 == v1.get_allocator().get_personality());
VERIFY(2 == v2.get_allocator().get_personality());
// swap back so assertions in uneq_allocator::deallocate don't fail
std::swap(v1, v2);
}
void test02()
{
typedef propagating_allocator<C, true> alloc_type;
typedef std::basic_string<C, traits, alloc_type> test_type;
test_type v1(alloc_type(1));
v1.push_back(C());
test_type v2(alloc_type(2));
v2.push_back(C());
std::swap(v1, v2);
VERIFY(2 == v1.get_allocator().get_personality());
VERIFY(1 == v2.get_allocator().get_personality());
}
int main()
{
test01();
test02();
return 0;
}
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