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// Copyright (C) 2005-2022 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/>.
// 25.3.1.2 [lib.stable.sort]
#include <algorithm>
#include <testsuite_new_operators.h>
#include <testsuite_hooks.h>
#include <testsuite_iterators.h>
using __gnu_test::test_container;
using __gnu_test::random_access_iterator_wrapper;
using std::stable_sort;
typedef test_container<int, random_access_iterator_wrapper> Container;
void
test1()
{
int array[] = { 0 };
Container con(array, array);
stable_sort(con.begin(), con.end());
}
void
test2()
{
int array[] = { 6, 5, 4, 3, 2, 1, 0 };
Container con(array, array + 7);
stable_sort(con.begin(), con.end());
VERIFY(array[0] == 0 && array[1] == 1 && array[2] == 2 &&
array[3] == 3 && array[4] == 4 && array[5] == 5 &&
array[6] == 6);
}
struct S
{
int i;
int j;
S() {}
S(int in)
{
if(in > 0)
{
i = in;
j = 1;
}
else
{
i = -in;
j = 0;
}
}
};
bool
operator<(const S& s1, const S& s2)
{ return s1.i < s2.i; }
void
test3()
{
S array[] = { -1, -2, 1, 2, -3 ,-5 ,3 , -4, 5, 4 };
test_container<S, random_access_iterator_wrapper> con(array,array + 10);
stable_sort(con.begin(), con.end());
for(int i = 0; i < 10; ++i)
VERIFY(array[i].j == i % 2);
}
int
main()
{
test1();
test2();
test3();
__gnu_test::set_new_limit(sizeof(S) * 5);
test3();
__gnu_test::set_new_limit(sizeof(S));
test3();
__gnu_test::set_new_limit(0);
test3();
}