cxx/test/algorithms/alg.modifying.operations/alg.partitions/partition_copy.pass.cpp

51 lines
1.5 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <algorithm>
// template <class InputIterator, class OutputIterator1,
// class OutputIterator2, class Predicate>
// pair<OutputIterator1, OutputIterator2>
// partition_copy(InputIterator first, InputIterator last,
// OutputIterator1 out_true, OutputIterator2 out_false,
// Predicate pred);
#include <algorithm>
#include <cassert>
#include "../../../iterators.h"
struct is_odd
{
bool operator()(const int& i) const {return i & 1;}
};
int main()
{
{
const int ia[] = {1, 2, 3, 4, 6, 8, 5, 7};
int r1[10] = {0};
int r2[10] = {0};
typedef std::pair<output_iterator<int*>, int*> P;
P p = std::partition_copy(input_iterator<const int*>(std::begin(ia)),
input_iterator<const int*>(std::end(ia)),
output_iterator<int*>(r1), r2, is_odd());
assert(p.first.base() == r1 + 4);
assert(r1[0] == 1);
assert(r1[1] == 3);
assert(r1[2] == 5);
assert(r1[3] == 7);
assert(p.second == r2 + 4);
assert(r2[0] == 2);
assert(r2[1] == 4);
assert(r2[2] == 6);
assert(r2[3] == 8);
}
}