bimap/example/bimap_and_boost/foreach.cpp
2019-04-23 14:10:01 +02:00

107 lines
2.8 KiB
C++

// 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)
// VC++ 8.0 warns on usage of certain Standard Library and API functions that
// can be cause buffer overruns or other possible security issues if misused.
// See https://web.archive.org/web/20071014014301/http://msdn.microsoft.com/msdnmag/issues/05/05/SafeCandC/default.aspx
// But the wording of the warning is misleading and unsettling, there are no
// portable alternative functions, and VC++ 8.0's own libraries use the
// functions in question. So turn off the warnings.
#define _CRT_SECURE_NO_DEPRECATE
#define _SCL_SECURE_NO_DEPRECATE
// Boost.Bimap Example
//-----------------------------------------------------------------------------
#include <boost/config.hpp>
#include <string>
#include <iostream>
#include <boost/foreach.hpp>
#include <boost/bimap/bimap.hpp>
#include <boost/bimap/list_of.hpp>
#include <boost/bimap/support/lambda.hpp>
using namespace boost::bimaps;
int main()
{
//[ code_bimap_and_boost_foreach
typedef bimap< std::string, list_of<int> > bm_type;
bm_type bm;
bm.insert( bm_type::value_type("1", 1) );
bm.insert( bm_type::value_type("2", 2) );
bm.insert( bm_type::value_type("3", 4) );
bm.insert( bm_type::value_type("4", 2) );
BOOST_FOREACH( bm_type::left_reference p, bm.left )
{
++p.second; /*< We can modify the right element because we have
use a mutable collection type in the right side. >*/
}
BOOST_FOREACH( bm_type::right_const_reference p, bm.right )
{
std::cout << p.first << "-->" << p.second << std::endl;
}
//]
// More examples
BOOST_FOREACH( bm_type::right_reference p, bm.right )
{
++p.first;
}
BOOST_FOREACH( bm_type::left_const_reference p, bm.left )
{
std::cout << p.first << "-->" << p.second << std::endl;
}
BOOST_FOREACH( bm_type::reference p, bm )
{
++p.right;
}
const bm_type & cbm = bm;
BOOST_FOREACH( bm_type::const_reference p, cbm )
{
std::cout << p.left << "-->" << p.right << std::endl;
}
BOOST_FOREACH( bm_type::const_reference p, bm )
{
std::cout << p.left << "-->" << p.right << std::endl;
}
//[ code_bimap_and_boost_foreach_using_range
BOOST_FOREACH( bm_type::left_reference p,
( bm.left.range( std::string("1") <= _key, _key < std::string("3") ) ))
{
++p.second;
}
BOOST_FOREACH( bm_type::left_const_reference p,
( bm.left.range( std::string("1") <= _key, _key < std::string("3") ) ))
{
std::cout << p.first << "-->" << p.second << std::endl;
}
//]
return 0;
}