[C언어 #39] 포인터 (pointer) 로 구조체(structure) 활용

c언어 포인터로 구조체 전달/활용

 

 

Pass structures using pointers

/* Passing structures using pointers */
#include <stdio.h>
 
// Structure vehicle
struct vehicle { int x, y; };
 
// Move vehicle
void move(struct vehicle *v, int vx, int vy) {
    v->x = v->x + vx;
    v->y = v->y + vy;
}
 
int main() {
    struct vehicle truckData = { 11, 27 };
    struct vehicle *truck = &truckData;
    printf("truckData - x: %d, y: %d\n", truckData.x, truckData.y);
    printf("truck - x: %d, y: %d\n", truck->x, truck->y);
 
    // Move and print result
    move(truck, 1, 3);    
    printf("truck - x: %d, y: %d\n", truck->x, truck->y);
}