Question

How to use void pointers in C

Answer 1

#include <stdio.h>
 
void printBytes(void *arr, int n) {
    for (int i = 0; i < n; i++) {
        printf("%02x ", ((char*)arr)[i]);
    }
}
 
    
int main() {
    int arr[] = { 15, 31, 32, 92 };
     
    printBytes(arr, 4 * sizeof(int));
 
    return 0;
}
     
     
          
/*
run:
       
0f 00 00 00 1f 00 00 00 20 00 00 00 5c 00 00 00 
    
*/

 

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