ceph/src/boost/libs/fusion/test/algorithm/for_each.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/container/vector/vector.hpp>
   9 #include <boost/fusion/adapted/mpl.hpp>
  10 #include <boost/fusion/sequence/io/out.hpp>
  11 #include <boost/fusion/algorithm/iteration/for_each.hpp>
  12 #include <boost/mpl/vector_c.hpp>
  13
  14 struct print
  15 {
  16     template <typename T>
  17     void operator()(T const& v) const
  18     {
  19         std::cout << "[ " << v << " ] ";
  20     }
  21 };
  22
  23 struct increment
  24 {
  25     template <typename T>
  26     void operator()(T& v) const
  27     {
  28         ++v;
  29     }
  30 };
  31
  32 int
  33 main()
  34 {
  35     using namespace boost::fusion;
  36     using boost::mpl::vector_c;
  37     namespace fusion = boost::fusion;
  38
  39     {
  40         typedef vector<int, char, double, char const*> vector_type;
  41         vector_type v(1, 'x', 3.3, "Ruby");
  42         for_each(v, print());
  43         std::cout << std::endl;
  44     }
  45
  46     {
  47         typedef vector<int, char, double, char const*> vector_type;
  48         vector_type v(1, 'x', 3.3, "Ruby");
  49         for_each(v, increment());
  50         std::cout << v << std::endl;
  51     }
  52
  53     {
  54         typedef vector_c<int, 2, 3, 4, 5, 6> mpl_vec;
  55         fusion::for_each(mpl_vec(), print());
  56         std::cout << std::endl;
  57     }
  58
  59     return boost::report_errors();
  60 }
  61