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

94 lines
2.3 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 <map>
#include <boost/bimap/bimap.hpp>
using namespace boost::bimaps;
//[ code_standard_map_comparison
template< class Map, class CompatibleKey, class CompatibleData >
void use_it( Map & m,
const CompatibleKey & key,
const CompatibleData & data )
{
typedef typename Map::value_type value_type;
typedef typename Map::const_iterator const_iterator;
m.insert( value_type(key,data) );
const_iterator iter = m.find(key);
if( iter != m.end() )
{
assert( iter->first == key );
assert( iter->second == data );
std::cout << iter->first << " --> " << iter->second;
}
m.erase(key);
}
int main()
{
typedef bimap< set_of<std::string>, set_of<int> > bimap_type;
bimap_type bm;
// Standard map
{
typedef std::map< std::string, int > map_type;
map_type m;
use_it( m, "one", 1 );
}
// Left map view
{
typedef bimap_type::left_map map_type;
map_type & m = bm.left;
use_it( m, "one", 1 );
}
// Reverse standard map
{
typedef std::map< int, std::string > reverse_map_type;
reverse_map_type rm;
use_it( rm, 1, "one" );
}
// Right map view
{
typedef bimap_type::right_map reverse_map_type;
reverse_map_type & rm = bm.right;
use_it( rm, 1, "one" );
}
return 0;
}
//]