forked from boostorg/algorithm
86 lines
2.1 KiB
C++
86 lines
2.1 KiB
C++
/*
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Copyright (c) Marshall Clow 2011-2012.
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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For more information, see http://www.boost.org
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*/
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#include <boost/config.hpp>
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#include <boost/algorithm/cxx11/copy_n.hpp>
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#include <boost/test/included/test_exec_monitor.hpp>
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#include <string>
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#include <iostream>
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#include <vector>
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#include <list>
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namespace ba = boost::algorithm;
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// namespace ba = boost;
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template <typename Container>
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void test_sequence ( Container const &c ) {
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typedef typename Container::value_type value_type;
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std::vector<value_type> v;
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// Copy zero elements
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v.clear ();
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ba::copy_n ( c.begin (), 0, back_inserter ( v ));
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BOOST_CHECK ( v.size () == 0 );
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ba::copy_n ( c.begin (), 0U, back_inserter ( v ));
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BOOST_CHECK ( v.size () == 0 );
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if ( c.size () > 0 ) {
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// Just one element
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v.clear ();
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ba::copy_n ( c.begin (), 1, back_inserter ( v ));
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BOOST_CHECK ( v.size () == 1 );
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BOOST_CHECK ( v[0] == *c.begin ());
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v.clear ();
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ba::copy_n ( c.begin (), 1U, back_inserter ( v ));
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BOOST_CHECK ( v.size () == 1 );
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BOOST_CHECK ( v[0] == *c.begin ());
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// Half the elements
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v.clear ();
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ba::copy_n ( c.begin (), c.size () / 2, back_inserter ( v ));
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BOOST_CHECK ( v.size () == c.size () / 2);
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BOOST_CHECK ( std::equal ( v.begin (), v.end (), c.begin ()));
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// Half the elements + 1
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v.clear ();
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ba::copy_n ( c.begin (), c.size () / 2 + 1, back_inserter ( v ));
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BOOST_CHECK ( v.size () == c.size () / 2 + 1 );
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BOOST_CHECK ( std::equal ( v.begin (), v.end (), c.begin ()));
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// All the elements
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v.clear ();
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ba::copy_n ( c.begin (), c.size (), back_inserter ( v ));
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BOOST_CHECK ( v.size () == c.size ());
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BOOST_CHECK ( std::equal ( v.begin (), v.end (), c.begin ()));
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}
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}
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void test_sequence1 () {
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std::vector<int> v;
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for ( int i = 5; i < 15; ++i )
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v.push_back ( i );
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test_sequence ( v );
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std::list<int> l;
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for ( int i = 25; i > 15; --i )
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l.push_back ( i );
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test_sequence ( l );
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}
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int test_main( int , char* [] )
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{
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test_sequence1 ();
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return 0;
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}
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