BYVoid · September 21, 2012 10:06
diff --git a/func.c b/func.c
 int buf = 0;

 void func() {
  buf = 2;
  /* Do something else */
 }
diff --git a/main.c b/main.c
 #include <stdio.h>

 int buf;
 void func();

 int main() {
  buf = 1;
  func();
  printf("%d\n", buf);
  return 0;
 }
	#include <stdio.h>

	int buf;
	void func();

	int main() {
	buf = 1;
	func();
	printf("%d\n", buf);
	return 0;
	}