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// Boost.Bimap
//
// Copyright (c) 2006-2007 Matias Capeletto
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// Boost.Bimap Example
//-----------------------------------------------------------------------------
// This example shows how to construct a bidirectional map with
// multi_index_container.
// By a bidirectional map we mean a container of elements of
// std::pair<const FromType,const ToType> such that no two elements exists with
// the same first or second value (std::map only guarantees uniqueness of the
// first member).
// Fast lookup is provided for both keys. The program features a tiny
// Spanish-English dictionary with online query of words in both languages.
#include <boost/config.hpp>
//[ code_mi_to_b_path_bidirectional_map
#include <iostream>
#include <boost/tokenizer.hpp>
#include <boost/bimap/bimap.hpp>
using namespace boost::bimaps;
// A dictionary is a bidirectional map from strings to strings
typedef bimap<std::string,std::string> dictionary;
typedef dictionary::value_type translation;
int main()
{
dictionary d;
// Fill up our microdictionary.
// first members Spanish, second members English.
d.insert( translation("hola" ,"hello" ));
d.insert( translation("adios","goodbye"));
d.insert( translation("rosa" ,"rose" ));
d.insert( translation("mesa" ,"table" ));
std::cout << "enter a word" << std::endl;
std::string word;
std::getline(std::cin,word);
// search the queried word on the from index (Spanish)
dictionary::left_const_iterator it = d.left.find(word);
if( it != d.left.end() )
{
// the second part of the element is the equivalent in English
std::cout << word << " is said "
<< it->second /*< `it` is an iterator of the left view, so
`it->second` refers to the right element of
the relation, the word in english >*/
<< " in English" << std::endl;
}
else
{
// word not found in Spanish, try our luck in English
dictionary::right_const_iterator it2 = d.right.find(word);
if( it2 != d.right.end() )
{
std::cout << word << " is said "
<< it2->second /*< `it2` is an iterator of the right view, so
`it2->second` refers to the left element of
the relation, the word in spanish >*/
<< " in Spanish" << std::endl;
}
else
{
std::cout << "No such word in the dictionary" << std::endl;
}
}
return 0;
}
//]
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