ceph/src/boost/libs/iterator/example/node_iterator2.cpp

   1 // Copyright David Abrahams 2004. Use, modification and distribution is
   2 // subject to the Boost Software License, Version 1.0. (See accompanying
   3 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   4
   5 #include "node_iterator2.hpp"
   6 #include <string>
   7 #include <memory>
   8 #include <iostream>
   9 #include <algorithm>
  10 #include <boost/mem_fn.hpp>
  11 #include <cassert>
  12
  13 int main()
  14 {
  15
  16 #if defined(BOOST_NO_CXX11_SMART_PTR)
  17
  18     std::auto_ptr<node<int> > nodes(new node<int>(42));
  19
  20 #else
  21
  22     std::unique_ptr<node<int> > nodes(new node<int>(42));
  23
  24 #endif
  25
  26     nodes->append(new node<std::string>(" is greater than "));
  27     nodes->append(new node<int>(13));
  28
  29     // Check interoperability
  30     assert(node_iterator(nodes.get()) == node_const_iterator(nodes.get()));
  31     assert(node_const_iterator(nodes.get()) == node_iterator(nodes.get()));
  32
  33     assert(node_iterator(nodes.get()) != node_const_iterator());
  34     assert(node_const_iterator(nodes.get()) != node_iterator());
  35
  36     std::copy(
  37         node_iterator(nodes.get()), node_iterator()
  38       , std::ostream_iterator<node_base>(std::cout, " ")
  39     );
  40     std::cout << std::endl;
  41
  42     std::for_each(
  43         node_iterator(nodes.get()), node_iterator()
  44       , boost::mem_fn(&node_base::double_me)
  45     );
  46
  47     std::copy(
  48         node_const_iterator(nodes.get()), node_const_iterator()
  49       , std::ostream_iterator<node_base>(std::cout, "/")
  50     );
  51     std::cout << std::endl;
  52     return 0;
  53 }