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// Boost.Range library
//
// Copyright Neil Groves 2009. Use, modification and
// distribution is subject to the Boost Software License, Version
// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
//
// For more information, see http://www.boost.org/libs/range/
//
#include <boost/range/adaptor/filtered.hpp>
#include <boost/range/algorithm/copy.hpp>
#include <boost/assign.hpp>
#include <algorithm>
#include <iostream>
#include <vector>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/range/algorithm_ext/push_back.hpp>
namespace
{
struct is_even
{
bool operator()( int x ) const { return x % 2 == 0; }
};
void filtered_example_test()
{
using namespace boost::assign;
using namespace boost::adaptors;
std::vector<int> input;
input += 1,2,3,4,5,6,7,8,9;
boost::copy(
input | filtered(is_even()),
std::ostream_iterator<int>(std::cout, ","));
std::vector<int> reference;
reference += 2,4,6,8;
std::vector<int> test;
boost::push_back(test, input | filtered(is_even()));
BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(),
test.begin(), test.end() );
}
}
boost::unit_test::test_suite*
init_unit_test_suite(int argc, char* argv[])
{
boost::unit_test::test_suite* test
= BOOST_TEST_SUITE( "RangeTestSuite.adaptor.filtered_example" );
test->add( BOOST_TEST_CASE( &filtered_example_test ) );
return test;
}
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