C++ stack!

stack.h

#ifndef STACK_H

#define STACK_H

class Stack{

private: //information hiding

int* pArr;

int  tos;

int  size;

public:

Stack(int size); //void initStack(int size);

~Stack(); //void cleanupStack();

void push(int data);

int pop();

};

#endif

stack.cpp

#include "stack.h"

#include <cassert>

Stack::Stack(int size)

{

//this-> pArr = (int*) malloc(sizeof(int)*size);

this-> pArr = new int[size];

assert( this->pArr );

this-> size = size;

this-> tos = 0;

}

Stack::~Stack()

{

//free( this->pArr );

delete [] this->pArr;

}

void Stack::push(int data)

{

assert( this->tos != this->size);

this->pArr[(this->tos)++] = data;

}

int Stack::pop()

{

assert( this->tos != 0 );

return this->pArr[--(this->tos)];

}