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// Copyright (C) 2019-2022 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/>.
#include <algorithm>
#include <vector>
#include <list>
#include <deque>
#include <testsuite_hooks.h>
void test01()
{
using namespace std;
deque<int> d;
for (int i = 0; i != _GLIBCXX_STD_C::__deque_buf_size(sizeof(int)); ++i)
d.push_back(i);
deque<int> dest(d.size(), 0);
copy_backward(d.begin(), d.end(), dest.end());
VERIFY( equal(dest.begin(), dest.end(), d.begin()) );
}
void test02()
{
using namespace std;
deque<int> d;
for (int i = 0; i != 4 * _GLIBCXX_STD_C::__deque_buf_size(sizeof(int)); ++i)
d.push_back(i);
deque<int> dest(d.size(), 0);
const deque<int>& cd = d;
copy_backward(cd.begin(), cd.end(), dest.end());
VERIFY( equal(dest.begin(), dest.end(), cd.begin()) );
}
void test03()
{
using namespace std;
std::deque<int> d;
for (int i = 0; i != 1024; ++i)
d.push_back(i);
d.pop_front();
d.pop_back();
std::vector<int> dest(d.size(), 0);
std::copy_backward(d.begin(), d.end(), dest.end());
VERIFY( std::equal(dest.begin(), dest.end(), d.begin()) );
}
void test04()
{
using namespace std;
std::vector<int> v;
for (int i = 0; i != 1024; ++i)
v.push_back(i);
std::deque<int> dest(v.size() - 10, 0);
std::copy_backward(v.begin() + 5, v.end() - 5, dest.end());
VERIFY( std::equal(v.begin() + 5, v.end() - 5, dest.begin()) );
}
void test05()
{
using namespace std;
std::list<int> l;
for (int i = 0; i != 1024; ++i)
l.push_back(i);
std::deque<int> dest(l.size(), 0);
std::copy_backward(l.begin(), l.end(), dest.end());
VERIFY( std::equal(dest.begin(), dest.end(), l.begin()) );
}
int main()
{
test01();
test02();
test03();
test04();
test05();
return 0;
}
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