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