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

#define log_int(n) printf("%s == %d\n", #n, n)
#define log_long(n) printf("%s == %ld\n", #n, n)

struct Point { // 8+ bytes
    int x; // 4 bytes
    int y; // 4 bytes
};

struct Point multiply_point(struct Point point, int multiplier) {
    point.x *= multiplier;
    point.y *= multiplier;
    return point;
}

int main(int argc, char* argv[]) {
    // GOOD code quality: the best way to initialize a struct
    struct Point p1 = { .y = 5, .x = 7 };

    log_int(p1.x);
    log_int(p1.y);
    log_long(sizeof(p1));


    struct Point p2 = p1;
    log_int(p2.x);
    log_int(p2.y);
    p2.x = 10;
    log_int(p1.x);
    log_int(p2.x);

    struct Point p3 = multiply_point(p1, 10);
    log_int(p1.x);
    log_int(p1.y);
    log_int(p3.x);
    log_int(p3.y);

    return EXIT_SUCCESS;
}
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