dafyddcrosby · December 20, 2015 09:49
diff --git a/pass-by-ref.c b/pass-by-ref.c
 #include <stdio.h>

 void square(int *num) {
 	*num *= *num;
 }

 int main() {
 	int x = 4;
 	square(&x);
 	printf("%d\n", x);
 	return 0;
 }
	#include <stdio.h>

	void square(int *num) {
	num = *num;
	}

	int main() {
	int x = 4;
	square(&x);
	printf("%d\n", x);
	return 0;
	}