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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/adjacent_filtered.hpp>
- #include <boost/test/test_tools.hpp>
- #include <boost/test/unit_test.hpp>
- #include <boost/assign.hpp>
- #include <algorithm>
- #include <list>
- #include <set>
- #include <string>
- #include <vector>
- namespace boost
- {
- namespace
- {
- template< class Container >
- void adjacent_filtered_test_impl( Container& c )
- {
- using namespace boost::adaptors;
- typedef BOOST_DEDUCED_TYPENAME Container::value_type value_t;
- // This is my preferred syntax using the | operator.
- std::vector< value_t > test_result1
- = boost::copy_range< std::vector< value_t > >(
- c | adjacent_filtered(std::not_equal_to< value_t >()));
- // This is an alternative syntax preferred by some.
- std::vector< value_t > test_result2
- = boost::copy_range< std::vector< value_t > >(
- adaptors::adjacent_filter(c, std::not_equal_to< value_t >()));
- // Calculate the reference result.
- std::vector< value_t > reference_result;
- typedef BOOST_DEDUCED_TYPENAME Container::const_iterator iter_t;
- value_t prev_v = value_t();
- for (iter_t it = c.begin(); it != c.end(); ++it)
- {
- if (it == c.begin())
- {
- reference_result.push_back(*it);
- }
- else if (*it != prev_v)
- {
- reference_result.push_back(*it);
- }
- prev_v = *it;
- }
- BOOST_CHECK_EQUAL_COLLECTIONS( reference_result.begin(),
- reference_result.end(),
- test_result1.begin(),
- test_result1.end() );
- BOOST_CHECK_EQUAL_COLLECTIONS( reference_result.begin(),
- reference_result.end(),
- test_result2.begin(),
- test_result2.end() );
- }
- template< class Collection >
- void adjacent_filtered_test_impl()
- {
- using namespace boost::assign;
- Collection c;
- // test empty collection
- adjacent_filtered_test_impl(c);
- // test one element;
- c += 1;
- adjacent_filtered_test_impl(c);
- // test many elements;
- c += 1,2,2,2,3,4,4,4,4,5,6,7,8,9,9;
- adjacent_filtered_test_impl(c);
- }
- void adjacent_filtered_test()
- {
- adjacent_filtered_test_impl< std::vector< int > >();
- adjacent_filtered_test_impl< std::list< int > >();
- adjacent_filtered_test_impl< std::set< int > >();
- adjacent_filtered_test_impl< std::multiset< int > >();
- }
- }
- }
- boost::unit_test::test_suite*
- init_unit_test_suite(int argc, char* argv[])
- {
- boost::unit_test::test_suite* test
- = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.adjacent_filtered" );
- test->add( BOOST_TEST_CASE( &boost::adjacent_filtered_test ) );
- return test;
- }
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