Check if Address is 16-Byte Aligned

Task

Implement the function is_aligned16

• Write a function that takes a void* pointer representing a memory address
• Return 1 if the address is aligned to a 16-byte boundary, 0 otherwise
  • The address is a multiple of 16

Function Signature

// Given a void* pointer, return 1 if the address is aligned to 16 bytes, else 0.
int is_aligned16(void* ptr);

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Example

0x0 1
0x11 0
0x20 1
0xff 0

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Code

#include <stdint.h>
 
int is_aligned16(void* ptr){
	uint64_t a = (uint64_t) ptr;
	return (a % 16 == 0) ? 1 : 0;
}