56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program 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 Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#ifndef NL_MUTABLE_CONTAINER_H
|
|
#define NL_MUTABLE_CONTAINER_H
|
|
|
|
namespace NLMISC
|
|
{
|
|
/** Container wrapper that allow read/write access to element stored in
|
|
* a const container.
|
|
* In fact, the template only allow calling begin() and end() over
|
|
* a const container.
|
|
* This prevent the user to change the structure of the container.
|
|
* Usage :
|
|
*
|
|
* class foo
|
|
* {
|
|
* typedef TMutableContainer<vector<string> > TMyCont;
|
|
* TMyCont _MyCont;
|
|
*
|
|
* public:
|
|
* // return the container with mutable item content but const item list
|
|
* const TMyCont getContainer() const { return _MyCont; };
|
|
* }
|
|
*
|
|
*/
|
|
template <class BaseContainer>
|
|
struct TMutableContainer : public BaseContainer
|
|
{
|
|
typename BaseContainer::iterator begin() const
|
|
{
|
|
return const_cast<BaseContainer*>(static_cast<const BaseContainer*>(this))->begin();
|
|
}
|
|
|
|
typename BaseContainer::iterator end() const
|
|
{
|
|
return const_cast<BaseContainer*>(static_cast<const BaseContainer*>(this))->end();
|
|
}
|
|
};
|
|
|
|
} // namespace NLMISC
|
|
|
|
#endif // NL_MUTABLE_CONTAINER_H
|