ceph/src/boost/libs/unordered/doc/src_code/intro.cpp

   1
   2 // Copyright 2006-2009 Daniel James.
   3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 //[intro_example1_1
   7 #include <boost/unordered_map.hpp>
   8 #include <boost/foreach.hpp>
   9 #include <cassert>
  10 #include <iostream>
  11 //]
  12
  13 int main() {
  14 //[intro_example1_2
  15     typedef boost::unordered_map<std::string, int> map;
  16     map x;
  17     x["one"] = 1;
  18     x["two"] = 2;
  19     x["three"] = 3;
  20
  21     assert(x.at("one") == 1);
  22     assert(x.find("missing") == x.end());
  23 //]
  24
  25 //[intro_example1_3
  26     BOOST_FOREACH(map::value_type i, x) {
  27         std::cout<<i.first<<","<<i.second<<"\n";
  28     }
  29 //]
  30 }