ef2-sdk/dlls/game/stack.h
2003-11-05 00:00:00 +00:00

139 lines
2.2 KiB
C++

//-----------------------------------------------------------------------------
//
// $Logfile:: /Code/DLLs/game/stack.h $
// $Revision:: 3 $
// $Author:: Steven $
// $Date:: 10/13/03 8:54a $
//
// Copyright (C) 1997 by Ritual Entertainment, Inc.
// All rights reserved.
//
// This source is may not be distributed and/or modified without
// expressly written permission by Ritual Entertainment, Inc.
//
//
// DESCRIPTION:
// Generic Stack object.
//
#ifndef __STACK_H__
#define __STACK_H__
#include "g_local.h"
#include "class.h"
template <class Type>
class StackNode : public Class
{
public:
Type data;
StackNode *next;
StackNode( Type d );
};
template <class Type>
inline StackNode<Type>::StackNode( Type d ) : data( d )
{
next = NULL;
}
template <class Type>
class Stack : public Class
{
private:
StackNode<Type> *head;
public:
Stack();
~Stack<Type>();
void Clear( void );
qboolean Empty( void );
void Push( Type data );
Type Pop( void );
};
template <class Type>
inline Stack<Type>::Stack()
{
head = NULL;
}
template <class Type>
inline Stack<Type>::~Stack<Type>()
{
Clear();
}
template <class Type>
inline void Stack<Type>::Clear
(
void
)
{
while( !Empty() )
{
Pop();
}
}
template <class Type>
inline qboolean Stack<Type>::Empty
(
void
)
{
if ( head == NULL )
{
return true;
}
return false;
}
template <class Type>
inline void Stack<Type>::Push
(
Type data
)
{
StackNode<Type> *tmp;
tmp = new StackNode<Type>( data );
if ( !tmp )
{
assert( NULL );
gi.Error( ERR_DROP, "Stack::Push : Out of memory" );
}
tmp->next = head;
head = tmp;
}
template <class Type>
inline Type Stack<Type>::Pop
(
void
)
{
Type ret;
StackNode<Type> *node;
if ( !head )
{
return NULL;
}
node = head;
ret = node->data;
head = node->next;
delete node;
return ret;
}
#endif /* stack.h */