ceph/src/boost/libs/iterator/example/node_iterator1.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_iterator1.hpp"
   6 #include <string>
   7 #include <memory>
   8 #include <iostream>
   9 #include <algorithm>
  10 #include <functional>
  11
  12 int main()
  13 {
  14
  15 #if defined(BOOST_NO_CXX11_SMART_PTR)
  16
  17     std::auto_ptr<node<int> > nodes(new node<int>(42));
  18
  19 #else
  20
  21     std::unique_ptr<node<int> > nodes(new node<int>(42));
  22
  23 #endif
  24
  25     nodes->append(new node<std::string>(" is greater than "));
  26     nodes->append(new node<int>(13));
  27
  28     std::copy(
  29         node_iterator(nodes.get()), node_iterator()
  30       , std::ostream_iterator<node_base>(std::cout, " ")
  31     );
  32     std::cout << std::endl;
  33
  34     std::for_each(
  35         node_iterator(nodes.get()), node_iterator()
  36       , std::mem_fun_ref(&node_base::double_me)
  37     );
  38
  39     std::copy(
  40         node_iterator(nodes.get()), node_iterator()
  41       , std::ostream_iterator<node_base>(std::cout, "/")
  42     );
  43     std::cout << std::endl;
  44 }