blob: 6b1df83627f3901bf3998cc6f86f7976e4f2c160 [file] [log] [blame]
// { dg-do run { target c++11 } }
// 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/>.
// 25.2.12 [lib.alg.partitions] Partitions.
#undef _GLIBCXX_CONCEPT_CHECKS
#include <algorithm>
#include <functional>
#include <testsuite_hooks.h>
#include <testsuite_rvalref.h>
#include <testsuite_iterators.h>
using __gnu_test::test_container;
using __gnu_test::forward_iterator_wrapper;
using __gnu_test::bidirectional_iterator_wrapper;
using __gnu_test::rvalstruct;
typedef test_container<rvalstruct, forward_iterator_wrapper> Fcontainer;
typedef test_container<rvalstruct, bidirectional_iterator_wrapper> Bcontainer;
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);
struct Pred
{
bool
operator()(const rvalstruct& x) const
{ return (x.val % 2) == 0; }
};
// 25.2.12 partition()
void
test01()
{
using std::partition;
rvalstruct farray[N];
rvalstruct barray[N];
std::copy(A, A + N, farray);
std::copy(A, A + N, barray);
Fcontainer fcon(farray, farray + N);
Bcontainer bcon(barray, barray + N);
Pred pred;
VERIFY(partition(fcon.begin(), fcon.end(), pred).ptr - farray == N/2);
for (const rvalstruct* i = farray; i < farray+N/2; ++i)
VERIFY(pred(*i));
for (const rvalstruct* i = farray+N/2; i < farray + N; ++i)
VERIFY(!pred(*i));
VERIFY(partition(bcon.begin(), bcon.end(), pred).ptr - barray == N/2);
for (const rvalstruct* i = barray; i < barray+N/2; ++i)
VERIFY(pred(*i));
for (const rvalstruct* i = barray+N/2; i < barray + N; ++i)
VERIFY(!pred(*i));
}
int
main()
{
test01();
return 0;
}