Stack(Push+Pop+Print)

#define _CRT_SECURE_NO_WARNINGS
#define STACK_OVERFLOW -100
#define STACK_UNDERFLOW -101
#define STACKSIZE 5

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

struct Stack {
    float Array[STACKSIZE];
    int size;
};

void push(Stack *stack, float value);

void printStackValue(float value);

void printStack(const Stack *stack);

int pop(Stack *stack);


void main()
{
    Stack Stack;
    Stack.size = 0;
    push(&Stack, 3);
    printStack(&Stack);
    push(&Stack, 5);
    printStack(&Stack);
    push(&Stack, 7);
    printStack(&Stack);
    printf("%d\n", pop(&Stack));
    printStack(&Stack);
    printf("%d\n", pop(&Stack));
    printStack(&Stack);
    printf("%d\n", pop(&Stack));
    printStack(&Stack);
    system("pause");
}

void printStackValue(int value) {
    printf("%d", value);
}

void printStack(const Stack *stack) {
    int i;
    int len = stack->size - 1;
    printf("stack size = %d > \n", stack->size);
    for (i = 0; i < len; i++) {
        printStackValue(stack->Array[i]);
        printf(" | ");
    }
    if (stack->size != 0) {
        printStackValue(stack->Array[i]);
    }
    printf("\n");
}

int pop(Stack *stack) {
    if (stack->size == 0) {
        exit(STACK_UNDERFLOW);
    }
    stack->size--;
    return stack->Array[stack->size];
}

void push(Stack *stack, float value)
{
    if (stack->size >= STACKSIZE)
        exit(STACK_OVERFLOW);
    stack->Array[stack->size] = value;
    stack->size++;
}