stack-example.c

#include <stdio.h>

#define MAX_STACK 64

typedef struct stack {
    int value[MAX_STACK];
    int size;
} Stack;

void push(Stack *s, int value);
int  pop(Stack *s);

int main(){
    Stack pilha = {.size = 0};

    push(&pilha, 25);
    push(&pilha, 32);

    printf("> %d\n", pop(&pilha));
    printf("> %d\n", pop(&pilha));
    
    return 0;
}

void push(Stack *s, int value){
    s->value[ s->size++ ] = value;
}

int pop(Stack *s){
    s->size--;
    return s->value[ s->size ];
}