Stack Implementation using Array

stack_array.c

#include <stdio.h>
#include <stdlib.h>
#include "stack_array.h"

void Initialize()
{
  top = 0;
}

int Empty()
{
  return top == 0;
}

int Full()
{
  return top == MAX_STACK_SIZE;
}

void Push(stack_t stack, data_t data)
{
  if(Full()) {
    printf("Stack Overflow.\n");
  } else {
    stack[top++] = data;
  }
}

data_t Pop(stack_t stack)
{
  if(Empty()) {
    printf("Stack Underflow.\n");
    exit(0);
  } else {
    return stack[--top];
  }
}

stack_array.h

#ifndef STACK_ARRAY_H
#define STACK_ARRAY_H

#define MAX_ARRAY_SIZE ...

typedef ... data_t;

// define stack_t: array_type has element data_t
typedef data_t stack_t[MAX_STACK_SIZE];

int top;

void Initialize();
int Empty();
int Full();
void Push(stack_t stack, data_t data);
data_t Pop(stack_t stack);

#endif