amxmodx/amxmodx/CQueue.h
2014-08-04 13:18:19 -05:00

108 lines
1.5 KiB
C++
Executable File

// vim: set ts=4 sw=4 tw=99 noet:
//
// AMX Mod X, based on AMX Mod by Aleksander Naszko ("OLO").
// Copyright (C) The AMX Mod X Development Team.
//
// This software is licensed under the GNU General Public License, version 3 or higher.
// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
// https://alliedmods.net/amxmodx-license
//by David "BAILOPAN" Anderson
#ifndef _INCLUDE_CQUEUE_H
#define _INCLUDE_CQUEUE_H
template <class T>
class CQueue
{
public:
class CQueueItem
{
public:
CQueueItem(const T &i, CQueueItem *n)
{
item = i;
next = n;
}
CQueueItem *GetNext()
{
return next;
}
T & GetItem()
{
return item;
}
void SetNext(CQueueItem *n)
{
next = n;
}
private:
T item;
CQueueItem *next;
};
public:
CQueue()
{
mSize = 0;
mFirst = NULL;
mLast = NULL;
}
bool empty()
{
return ((mSize == 0) ? true : false);
}
void push(const T &v)
{
CQueueItem *p = new CQueueItem(v, NULL);
if (empty())
{
mFirst = p;
} else {
mLast->SetNext(p);
}
mLast = p;
mSize++;
}
void pop()
{
if (mFirst == mLast)
{
delete mFirst;
mFirst = NULL;
mLast = NULL;
} else {
CQueueItem *p = mFirst->GetNext();
delete mFirst;
mFirst = p;
}
mSize--;
}
T & front()
{
return mFirst->GetItem();
}
T & back()
{
return mLast->GetItem();
}
unsigned int size()
{
return mSize;
}
private:
CQueueItem *mFirst;
CQueueItem *mLast;
unsigned int mSize;
};
#endif //_INCLUDE_CQUEUE_H