First_dz/cStack.cpp

#include <iostream>
#include "cStack.h"

using namespace std;

cStack::cStack ()  {top = 0;}
cStack::~cStack () {
	//clean_stack ();
}

void cStack::push (double _var) {
	st [++top] = _var;
}

double cStack::pop () {
	
	double last_number = 9999999;
	last_number =  st [top];
	st [top] = 0;
	top--;
		
	return last_number;
}

int  cStack::stack_size () {
	return top;
}

void cStack::clean_stack () {
	for (int i = 0; i <  MAX_STACK_SIZE; i++) {
		st [i] = 0;
	}
	top = 0;
}


void cStack::show_stack () {
	
	cout << "top = " << top << endl;
	
	for (int i = 0; i < MAX_STACK_SIZE; i++ ) {
		cout << "st" << i << " " << st [i] << "  ";
	}
	cout << endl;
}