as_vector.cpp

来自「Boost provides free peer-reviewed portab」· C++ 代码 · 共 55 行

/*=============================================================================
    Copyright (c) 2001-2006 Joel de Guzman

    Distributed under 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)
==============================================================================*/
#include <boost/detail/lightweight_test.hpp>
#include <boost/fusion/container/vector/vector.hpp>
#include <boost/fusion/adapted/mpl.hpp>
#include <boost/fusion/container/generation/make_vector.hpp>
#include <boost/fusion/container/generation/make_list.hpp>
#include <boost/fusion/container/vector/convert.hpp>
#include <boost/fusion/algorithm/transformation/push_back.hpp>
#include <boost/fusion/sequence/comparison/equal_to.hpp>
#include <boost/fusion/sequence/io/out.hpp>
#include <boost/mpl/vector_c.hpp>
#include <string>

int
main()
{
    using namespace boost::fusion;
    using namespace boost;

    std::cout << tuple_open('[');
    std::cout << tuple_close(']');
    std::cout << tuple_delimiter(", ");

    {
        vector0 empty;
        std::cout << as_vector(make_list(1, 1.23, "harru")) << std::endl;
        std::cout << as_vector(push_back(empty, 999)) << std::endl;
        
        BOOST_TEST(as_vector(make_list(1, 1.23, "harru")) == make_list(1, 1.23, std::string("harru")));
        BOOST_TEST(as_vector(push_back(empty, 999)) == push_back(empty, 999));
    }

    {
        std::cout << as_vector(mpl::vector_c<int, 1, 2, 3, 4, 5>()) << std::endl;
        BOOST_TEST((as_vector(mpl::vector_c<int, 1, 2, 3, 4, 5>()) 
            == mpl::vector_c<int, 1, 2, 3, 4, 5>()));
    }
    
    {
        // test conversion
        vector<int, std::string> v(make_list(123, "harru"));
        BOOST_TEST(v == make_list(123, "harru"));
        v = (make_list(235, "hola")); // test assign
        BOOST_TEST(v == make_list(235, "hola"));
    }

    return boost::report_errors();
}