Boost.Assignment Documentation

    // Boost.Assign library
    //
    //  Copyright Thorsten Ottosen 2003-2004. 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/assign/
    //

    #include <boost/detail/workaround.hpp>

    #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
    ###pragma warn -8091 // suppress warning in Boost.Test
    ###pragma warn -8057 // unused argument argc/argv in Boost.Test
    #endif

    #include <boost/assign/list_inserter.hpp>
    #include <boost/test/unit_test.hpp>
    #include <boost/test/test_tools.hpp>
    #include <boost/function.hpp>
    #include <boost/bind.hpp>
    #include <vector>
    #include <stdexcept>

    namespace ba = boost::assign;

    template< class C >
    class range_inserter
    {
        typedef typename C::iterator iterator;
        iterator begin, end;
    public:
        range_inserter( C& c )
        : begin( c.begin() ), end( c.end() )
        { }

        template< class T >
        void operator()( T r )
        {
            if( begin == end )
                throw std::range_error( "range error: <range_inserter>" );
            *begin = r;
            ++begin;
        }
    };

    template< class C >
    inline range_inserter<C> make_range_inserter( C& c )
    {
        return range_inserter<C>( c );
    }

    template< class T >
    class my_vector
    {
        typedef std::vector<T>                vector_t;
        typedef typename vector_t::size_type  size_type;
        vector_t data_;

    public:
        my_vector() : data_( 10, 0 )
        { }

        ba::list_inserter< range_inserter< vector_t >, T >
        operator=( T r )
        {
            return ba::make_list_inserter( make_range_inserter( data_ ) )( r );
        }

        size_type size() const
        {
            return data_.size();
        }

        const T& operator[]( size_type index )
        {
            return data_.at( index );
        }
    };

    void check_list_inserter()
    {
        using namespace std;
        using namespace boost::assign;

        my_vector<int> vec;
        vec = 1,2,3,4,5,6,7,8,9,10;
        BOOST_CHECK_EQUAL( vec.size(), 10u );
        BOOST_CHECK_EQUAL( vec[0], 1 );
        BOOST_CHECK_EQUAL( vec[9], 10 );
    }

    #include <boost/test/included/unit_test_framework.hpp>

    using boost::unit_test_framework::test_suite;

    test_suite* init_unit_test_suite( int argc, char* argv[] )
    {
        test_suite* test = BOOST_TEST_SUITE( "List Test Suite" );

        test->add( BOOST_TEST_CASE( &check_list_inserter ) );

        return test;
    }