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115 lines
1.6 KiB
C++
115 lines
1.6 KiB
C++
#ifndef FILE_STACK
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#define FILE_STACK
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/*****************************************************************************/
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/* File: stack.hh */
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/* Author: Wolfram Muehlhuber */
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/* Date: September 98 */
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/*****************************************************************************/
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/*
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Stack class, based on a resizable array
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*/
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// #include "array.hpp"
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namespace netgen
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{
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///
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template <class T> class STACK
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{
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public:
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///
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inline STACK (INDEX asize = 0, INDEX ainc = 0);
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///
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inline ~STACK ();
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///
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inline void Push (const T & el);
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///
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inline T & Pop ();
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///
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const inline T & Top () const;
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///
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inline int IsEmpty () const;
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///
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inline void MakeEmpty ();
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private:
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///
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Array<T> elems;
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///
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INDEX size;
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};
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/*
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Stack class, based on a resizable array
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*/
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template <class T>
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inline STACK<T> :: STACK (INDEX asize, INDEX ainc)
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: elems(asize, ainc)
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{
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size = 0;
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}
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template <class T>
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inline STACK<T> :: ~STACK ()
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{
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;
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}
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template <class T>
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inline void STACK<T> :: Push (const T & el)
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{
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if (size < elems.Size())
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elems.Elem(++size) = el;
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else
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{
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elems.Append(el);
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size++;
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}
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}
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template <class T>
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inline T & STACK<T> :: Pop ()
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{
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return elems.Elem(size--);
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}
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template <class T>
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const inline T & STACK<T> :: Top () const
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{
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return elems.Get(size);
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}
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template <class T>
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inline int STACK<T> :: IsEmpty () const
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{
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return (size == 0);
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}
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template <class T>
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inline void STACK<T> :: MakeEmpty ()
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{
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size = 0;
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}
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}
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#endif
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