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/* ResidualVM - A 3D game interpreter
*
* ResidualVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef COMMON_FOREACH_H
#define COMMON_FOREACH_H
#include "common/scummsys.h"
#if __cplusplus < 201103L
namespace Common {
class _Foreach_Container_Base_ {
public:
_Foreach_Container_Base_() : brk(1) { }
mutable uint brk;
};
template<class T>
class _Foreach_Container_ : public _Foreach_Container_Base_ {
public:
_Foreach_Container_(const T &co) : i(co.begin()), e(co.end()) { }
void next() const {
++i;
brk = 1;
}
bool end() const { return i == e; }
mutable typename T::const_iterator i;
typename T::const_iterator e;
};
template<class T>
inline _Foreach_Container_<T> _Create_Foreach_Container_(const T &c) {
return _Foreach_Container_<T>(c);
}
template<class T>
inline const _Foreach_Container_<T> *_Get_Foreach_Container_(const _Foreach_Container_Base_ *c, const T &) {
return static_cast<const _Foreach_Container_<T> *>(c);
}
}
#define foreach(var, container) \
for (const Common::_Foreach_Container_Base_ &_FOREACH_CONTAINER_ = Common::_Create_Foreach_Container_(container);\
!Common::_Get_Foreach_Container_(&_FOREACH_CONTAINER_, container)->end(); \
Common::_Get_Foreach_Container_(&_FOREACH_CONTAINER_, container)->next()) \
for (var = *Common::_Get_Foreach_Container_(&_FOREACH_CONTAINER_, container)->i;\
_FOREACH_CONTAINER_.brk > 0; --_FOREACH_CONTAINER_.brk)
#else
#define foreach(var, container) for (var : container)
#endif
#endif
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