ceph/src/boost/libs/fusion/test/sequence/std_pair.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/std_pair.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/container/vector/vector.hpp>
  16 #include <boost/fusion/container/list/list.hpp>
  17 #include <boost/fusion/container/generation/make_vector.hpp>
  18 #include <boost/fusion/container/vector/convert.hpp>
  19 #include <boost/fusion/sequence/comparison/equal_to.hpp>
  20 #include <boost/fusion/sequence/comparison/not_equal_to.hpp>
  21 #include <boost/fusion/sequence/comparison/less.hpp>
  22 #include <boost/fusion/sequence/comparison/less_equal.hpp>
  23 #include <boost/fusion/sequence/comparison/greater.hpp>
  24 #include <boost/fusion/sequence/comparison/greater_equal.hpp>
  25 #include <boost/fusion/mpl.hpp>
  26 #include <boost/fusion/support/is_view.hpp>
  27 #include <boost/mpl/is_sequence.hpp>
  28 #include <boost/mpl/front.hpp>
  29 #include <boost/mpl/assert.hpp>
  30 #include <iostream>
  31 #include <string>
  32 #include <utility>
  33
  34 int
  35 main()
  36 {
  37     using namespace boost::fusion;
  38     using namespace boost;
  39
  40     std::cout << tuple_open('[');
  41     std::cout << tuple_close(']');
  42     std::cout << tuple_delimiter(", ");
  43
  44     {
  45         typedef std::pair<int, std::string> pair_type;
  46         BOOST_MPL_ASSERT_NOT((traits::is_view<pair_type>));
  47         pair_type p(123, "Hola!!!");
  48
  49         std::cout << at_c<0>(p) << std::endl;
  50         std::cout << at_c<1>(p) << std::endl;
  51         std::cout << p << std::endl;
  52         BOOST_TEST(p == make_vector(123, "Hola!!!"));
  53
  54         at_c<0>(p) = 6;
  55         at_c<1>(p) = "mama mia";
  56         BOOST_TEST(p == make_vector(6, "mama mia"));
  57
  58         BOOST_STATIC_ASSERT(boost::fusion::result_of::size<pair_type>::value == 2);
  59         BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<pair_type>::value);
  60
  61         BOOST_TEST(front(p) == 6);
  62         BOOST_TEST(back(p) == "mama mia");
  63     }
  64
  65     {
  66         fusion::vector<int, float> v1(4, 3.3f);
  67         std::pair<short, float> v2(5, 3.3f);
  68         fusion::vector<long, double> v3(5, 4.4);
  69         BOOST_TEST(v1 < v2);
  70         BOOST_TEST(v1 <= v2);
  71         BOOST_TEST(v2 > v1);
  72         BOOST_TEST(v2 >= v1);
  73         BOOST_TEST(v2 < v3);
  74         BOOST_TEST(v2 <= v3);
  75         BOOST_TEST(v3 > v2);
  76         BOOST_TEST(v3 >= v2);
  77     }
  78
  79     {
  80         // conversion from pair to vector
  81         fusion::vector<int, std::string> v(std::make_pair(123, "Hola!!!"));
  82         v = std::make_pair(123, "Hola!!!");
  83     }
  84
  85     {
  86         // conversion from pair to list
  87         fusion::list<int, std::string> l(std::make_pair(123, "Hola!!!"));
  88         l = std::make_pair(123, "Hola!!!");
  89     }
  90
  91     {
  92         typedef std::pair<int, std::string> pair_type;
  93         BOOST_MPL_ASSERT((mpl::is_sequence<pair_type>));
  94         BOOST_MPL_ASSERT((boost::is_same<int, mpl::front<pair_type>::type>));
  95     }
  96
  97     return boost::report_errors();
  98 }
  99