Pass by reference V.S. Pass by address

passing_params.c

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

static inline void printAddress(void** ptr_address) {
    printf("%p\n", *ptr_address);
}

static inline void destroy(void** ptr_address) {
    free(*ptr_address);
    *ptr_address = NULL;
}

static inline void printAddress0(void* ptr) {
    printf("%p\n", ptr);
}

static inline void destroy0(void* ptr) {
    free(ptr);
    ptr = NULL;
}


int main() {

    
    int* ptr = malloc(6 * sizeof(int));
    *ptr = 222;
    printf("%p\n", ptr);
    
    destroy(&ptr);
    
    printAddress(&ptr);
    printAddress0(ptr);
    
    printf("%i\n", *ptr);


    

    return 0;
}