ceph/src/boost/libs/fusion/test/sequence/boost_tuple.cpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Joel de Guzman
   3
   4     Distributed under the Boost Software License, Version 1.0. (See accompanying
   5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 ==============================================================================*/
   7 #include <boost/detail/lightweight_test.hpp>
   8 #include <boost/fusion/adapted/boost_tuple.hpp>
   9 #include <boost/fusion/sequence/intrinsic/at.hpp>
  10 #include <boost/fusion/sequence/intrinsic/size.hpp>
  11 #include <boost/fusion/sequence/intrinsic/empty.hpp>
  12 #include <boost/fusion/sequence/intrinsic/front.hpp>
  13 #include <boost/fusion/sequence/intrinsic/back.hpp>
  14 #include <boost/fusion/sequence/io/out.hpp>
  15 #include <boost/fusion/iterator/distance.hpp>
  16 #include <boost/fusion/container/vector/vector.hpp>
  17 #include <boost/fusion/container/list/list.hpp>
  18 #include <boost/fusion/container/generation/make_vector.hpp>
  19 #include <boost/fusion/container/vector/convert.hpp>
  20 #include <boost/fusion/sequence/comparison/equal_to.hpp>
  21 #include <boost/fusion/sequence/comparison/not_equal_to.hpp>
  22 #include <boost/fusion/sequence/comparison/less.hpp>
  23 #include <boost/fusion/sequence/comparison/less_equal.hpp>
  24 #include <boost/fusion/sequence/comparison/greater.hpp>
  25 #include <boost/fusion/sequence/comparison/greater_equal.hpp>
  26 #include <boost/fusion/sequence/convert.hpp>
  27 #include <boost/fusion/mpl.hpp>
  28 #include <boost/fusion/support/is_view.hpp>
  29 #include <boost/tuple/tuple.hpp>
  30 #include <boost/mpl/is_sequence.hpp>
  31 #include <boost/mpl/front.hpp>
  32 #include <boost/mpl/assert.hpp>
  33 #include <iostream>
  34 #include <string>
  35
  36 int
  37 main()
  38 {
  39     using namespace boost::fusion;
  40     using namespace boost;
  41
  42     std::cout << tuple_open('[');
  43     std::cout << tuple_close(']');
  44     std::cout << tuple_delimiter(", ");
  45
  46     {
  47         typedef boost::tuple<int, std::string> tuple_type;
  48         BOOST_MPL_ASSERT_NOT((traits::is_view<tuple_type>));
  49         BOOST_STATIC_ASSERT(!traits::is_view<tuple_type>::value);
  50         tuple_type t(123, "Hola!!!");
  51
  52         std::cout << at_c<0>(t) << std::endl;
  53         std::cout << at_c<1>(t) << std::endl;
  54         std::cout << t << std::endl;
  55         BOOST_TEST(t == make_vector(123, "Hola!!!"));
  56
  57         at_c<0>(t) = 6;
  58         at_c<1>(t) = "mama mia";
  59         BOOST_TEST(t == make_vector(6, "mama mia"));
  60
  61         BOOST_STATIC_ASSERT(boost::fusion::result_of::size<tuple_type>::value == 2);
  62         BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<tuple_type>::value);
  63
  64         BOOST_TEST(front(t) == 6);
  65     }
  66
  67     {
  68         fusion::vector<int, float> v1(4, 3.3f);
  69         boost::tuple<short, float> v2(5, 3.3f);
  70         fusion::vector<long, double> v3(5, 4.4);
  71         BOOST_TEST(v1 < v2);
  72         BOOST_TEST(v1 <= v2);
  73         BOOST_TEST(v2 > v1);
  74         BOOST_TEST(v2 >= v1);
  75         BOOST_TEST(v2 < v3);
  76         BOOST_TEST(v2 <= v3);
  77         BOOST_TEST(v3 > v2);
  78         BOOST_TEST(v3 >= v2);
  79     }
  80
  81     {
  82         // conversion from boost tuple to vector
  83         fusion::vector<int, std::string> v(tuples::make_tuple(123, "Hola!!!"));
  84         v = tuples::make_tuple(123, "Hola!!!");
  85     }
  86
  87     {
  88         // conversion from boost tuple to list
  89         fusion::list<int, std::string> l(tuples::make_tuple(123, "Hola!!!"));
  90         l = tuples::make_tuple(123, "Hola!!!");
  91     }
  92
  93     {
  94         // conversion vector to boost tuple
  95         boost::tuple<int, std::string> t = convert<boost_tuple_tag>(make_vector(123, "Hola!!!"));
  96         BOOST_TEST(get<0>(t) == 123);
  97         BOOST_TEST(get<1>(t) == "Hola!!!");
  98     }
  99
 100     {
 101         // test from Ticket #1601, submitted by Shunsuke Sogame
 102         // expanded by Stjepan Rajko
 103         boost::tuple<int, char> t(3, 'a');
 104
 105         BOOST_TEST(0u == fusion::distance(fusion::begin(t), fusion::begin(t)));
 106         BOOST_TEST(1u == fusion::distance(fusion::begin(t), fusion::next(fusion::begin(t))));
 107         BOOST_TEST(2u == fusion::distance(fusion::begin(t), fusion::end(t)));
 108     }
 109
 110     {
 111         typedef boost::tuple<int, std::string> tuple_type;
 112         BOOST_MPL_ASSERT((mpl::is_sequence<tuple_type>));
 113         BOOST_MPL_ASSERT((boost::is_same<int, mpl::front<tuple_type>::type>));
 114     }
 115
 116     return boost::report_errors();
 117 }
 118