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/*
* The ManaVerse Client
* Copyright (C) 2015-2019 The ManaPlus Developers
*
* This file is part of The ManaVerse Client.
*
* 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
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef RESOURCES_MSTACK_H
#define RESOURCES_MSTACK_H
#include "logger.h"
#include "localconsts.h"
template<typename T>
struct MStack final
{
constexpr2 explicit MStack(const size_t maxSize) :
mStack(new T[maxSize]),
mMaxSize(maxSize),
mPointer(mStack - 1),
mStartPointer(mStack - 1),
mEndPointer(mStack + maxSize - 1)
{
}
~MStack()
{
delete [] mStack;
}
A_DELETE_COPY(MStack)
T &push()
{
if (mPointer == mEndPointer)
{
logger->log("error: max stack size reached");
return *mPointer;
}
return *(++mPointer);
}
T &getPop()
{
return *(mPointer--);
}
const T &getPopConst()
{
return *(mPointer--);
}
void pop()
{
mPointer --;
}
T &top() const
{
return *mPointer;
}
const T &topConst() const
{
return *mPointer;
}
void clear()
{
mPointer = mStack - 1;
}
bool empty() const
{
return mPointer == mStartPointer;
}
T *mStack;
size_t mMaxSize;
T *mPointer;
const T *const mStartPointer;
const T *const mEndPointer;
};
#endif // RESOURCES_MSTACK_H
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