libs/bimap/example/user_defined_names.cpp

   1 // Boost.Bimap
   2 //
   3 // Copyright (c) 2006-2007 Matias Capeletto
   4 //
   5 // Distributed under the Boost Software License, Version 1.0.
   6 // (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 //  VC++ 8.0 warns on usage of certain Standard Library and API functions that
  10 //  can be cause buffer overruns or other possible security issues if misused.
  11 //  See https://web.archive.org/web/20071014014301/http://msdn.microsoft.com/msdnmag/issues/05/05/SafeCandC/default.aspx
  12 //  But the wording of the warning is misleading and unsettling, there are no
  13 //  portable alternative functions, and VC++ 8.0's own libraries use the
  14 //  functions in question. So turn off the warnings.
  15 #define _CRT_SECURE_NO_DEPRECATE
  16 #define _SCL_SECURE_NO_DEPRECATE
  17
  18 // Boost.Bimap Example
  19 //-----------------------------------------------------------------------------
  20
  21 #include <boost/config.hpp>
  22
  23 #include <string>
  24 #include <iostream>
  25
  26 #include <boost/bimap/bimap.hpp>
  27 #include <boost/bimap/multiset_of.hpp>
  28
  29 using namespace boost::bimaps;
  30
  31 void untagged_version()
  32 {
  33     //[ code_user_defined_names_untagged_version
  34
  35     typedef bimap
  36     <
  37         multiset_of<std::string>,
  38         int
  39
  40     > People;
  41
  42     People people;
  43
  44     // ...
  45
  46     int user_id;
  47     std::cin >> user_id;
  48
  49     // people.right : map<id,name>
  50
  51     People::right_const_iterator id_iter = people.right.find(user_id);
  52     if( id_iter != people.right.end() )
  53     {
  54         // first  : id
  55         // second : name
  56
  57         std::cout << "name: " << id_iter->second << std::endl
  58                   << "id:   " << id_iter->first  << std::endl;
  59     }
  60     else
  61     {
  62         std::cout << "Unknown id, users are:" << std::endl;
  63
  64         // people.left : map<name,id>
  65
  66         for( People::left_const_iterator
  67                 name_iter = people.left.begin(),
  68                 iend      = people.left.end();
  69
  70              name_iter != iend; ++name_iter )
  71         {
  72             // first  : name
  73             // second : id
  74
  75             std::cout << "name: " << name_iter->first  << std::endl
  76                       << "id:   " << name_iter->second << std::endl;
  77         }
  78     }
  79     //]
  80 }
  81
  82 struct id   {};
  83 struct name {};
  84
  85 void tagged_version()
  86 {
  87     //[ code_user_defined_names_tagged_version
  88
  89     //<-
  90     /*
  91     //->
  92     struct id   {}; // Tag for the identification number
  93     struct name {}; // Tag for the name of the person
  94     //<-
  95     */
  96     //->
  97
  98     typedef bimap
  99     <
 100                      tagged< int        , id   >  ,
 101         multiset_of< tagged< std::string, name > >
 102
 103     > People;
 104
 105     People people;
 106
 107     // ...
 108
 109     int user_id;
 110     std::cin >> user_id;
 111
 112     People::map_by<id>::const_iterator id_iter = people.by<id>().find(user_id);
 113     if( id_iter != people.by<id>().end() )
 114     {
 115         std::cout << "name: " << id_iter->get<name>() << std::endl
 116                   << "id:   " << id_iter->get<id>()   << std::endl;
 117     }
 118     else
 119     {
 120         std::cout << "Unknown id, users are:" << std::endl;
 121
 122         for( People::map_by<name>::const_iterator
 123                 name_iter = people.by<name>().begin(),
 124                 iend      = people.by<name>().end();
 125
 126             name_iter != iend; ++name_iter )
 127         {
 128             std::cout << "name: " << name_iter->get<name>() << std::endl
 129                       << "id:   " << name_iter->get<id>()   << std::endl;
 130         }
 131     }
 132     //]
 133 }
 134
 135 int main()
 136 {
 137     untagged_version();
 138     tagged_version();
 139
 140     return 0;
 141 }
 142