time.h
#ifndef _TIMER_H
#define _TIMER_H

#include <windows.h>

#define get_tick() GetTickCount();
#define diff_tick(t1, t2) ((unsigned long)((t2) - (t1)));
#define diff_second(t1, t2) ((float)((t2) - (t1)) / CLK_TCK);

#endif


int main(void)
{
        unsigned long t1, t2, tTotal;

        t1 = get_tick();
        t2 = get_tick();

        tTotal = diff_tick(t1, t2);
        printf(\"Minus methods : GCD of %d and %d is %d. in %lu ticks \\n\", u, v, gcd, tTotal);  <<-- 이건 잘 됩니다.

--------------------------------------------------------------------------------------------
        printf(\"Minus methods : GCD of %d and %d is %d. in %lu ticks \\n\", u, v, gcd, diff_tick(t1, t2)); <-- 이건 안됨 ㅠ

        return 0;
}

C:\\_Source Code C algorithm\\002. biosTimer\\biosTimer\\biosTimer.c(35) : error C2143: syntax error : missing \')\' before \';\'
C:\\_Source Code C algorithm\\002. biosTimer\\biosTimer\\biosTimer.c(35) : error C2059: syntax error : \')\'

왜 안될까요 ..ㅠㅠ