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// Copyright (C) 2001-2015 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/>.
// 25.2.12 [lib.alg.partitions] Partitions.
#include <algorithm>
#include <functional>
#include <testsuite_new_operators.h>
#include <testsuite_hooks.h>
bool test __attribute__((unused)) = true;
const int A[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17};
const int B[] = {2, 4, 6, 8, 10, 12, 14, 16, 1, 3, 5, 7, 9, 11, 13, 15, 17};
const int N = sizeof(A) / sizeof(int);
// Index of the middle element that should be returned by the algo.
const int M = 8;
struct Pred
{
bool
operator()(const int& x) const
{ return (x % 2) == 0; }
};
// 25.2.12 stable_partition()
void
test01()
{
using std::stable_partition;
int s1[N];
std::copy(A, A + N, s1);
VERIFY( stable_partition(s1, s1 + N, Pred()) == s1 + M );
VERIFY( std::equal(s1, s1 + N, B) );
}
int
main()
{
test01();
// stable_partition rely on an internal buffer if possible. Try to limit the
// size of this buffer to see if algo is robust.
// Limit to half of the necessary buffer.
__gnu_test::set_new_limit(sizeof(A) / 2);
test01();
// Limit to just 1 element.
__gnu_test::set_new_limit(sizeof(int));
test01();
// Limit to 0
__gnu_test::set_new_limit(0);
test01();
return 0;
}
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