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simgear/simgear/structure/map.hxx
2014-07-29 23:57:59 +02:00

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1.8 KiB
C++

///@file
//
// Copyright (C) 2013 Thomas Geymayer <tomgey@gmail.com>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
#ifndef SG_MAP_HXX_
#define SG_MAP_HXX_
#include <map>
#include <string>
namespace simgear
{
/**
* Extended std::map with methods for easier usage.
*/
template<class Key, class Value>
class Map:
public std::map<Key, Value>
{
public:
Map() {}
/**
* Initialize a new map with the given key/value pair.
*/
Map(const Key& key, const Value& value)
{
(*this)[key] = value;
}
/**
* Change/add new value.
*/
Map& operator()(const Key& key, const Value& value)
{
(*this)[key] = value;
return *this;
}
/**
* Retrive a value (or get a default value if it does not exist).
*/
Value get(const Key& key, const Value& def = Value()) const
{
typename Map::const_iterator it = this->find(key);
if( it != this->end() )
return it->second;
return def;
}
};
typedef Map<std::string, std::string> StringMap;
} // namespace simgear
#endif /* SG_MAP_HXX_ */