#include <stdio.h>

// Assuming this is aligned itself on a 4 byte boundary
struct pizza_t {
    char size[10];      //offset  
    int price_cents;    //offset  
};

struct pizza_t pizza_options[3] = {
    {"small", 300},
    {"medium", 550},
    {"large", 800}
};

void print_pizza_t(struct pizza_t *pizza);
void increase_price(struct pizza_t *pizza, int increase_cents);


int main(void) {
    printf("The available pizza options are:\n");
    
    int i = 0;
main_loop:
    if ( i >= 3 ) goto main_loop_end;
    struct pizza_t *pizza_ptr = &pizza_options[i];
    increase_price(pizza_ptr, 100);
    print_pizza_t(pizza_ptr);
    i = i + 1;
    goto main_loop;
main_loop_end:
    return 0;
}

void print_pizza_t(struct pizza_t *pizza) {
    printf("Size: ");
    printf("%s", pizza->size);
    printf(", price: ");
    printf("%d",pizza->price_cents);
    printf(" cents\n");
}

void increase_price(struct pizza_t *pizza, int increase_cents) {
    pizza->price_cents =  pizza->price_cents + increase_cents;
}