C 的 time1(&t1), time2(t1, &dt)

cpp 代碼

// file: sj02.h

void time1(int *t1);
void time2(int t1, double *dt);
// ----------------------------------------------

void time1(int *t1)
{
    struct _timeb timebuffer;
    _ftime( &timebuffer );

    *t1= timebuffer.time + 8L*60*60;
    (*t1)%= (1L*24*60*60);
    *t1= (*t1)*1000L + timebuffer.millitm;
}// end time1()
// ----------------------------------------------

void time2(int t1, double *dt)
{
    // get t2
    int t2;
    time1(&t2);
    // ----------------------------------------------

    *dt= (t2 - t1)/1000.0;

    // dt must >= 0.0
    if ((*dt) < 0.0) {
        (*dt)+= 1.0*24.0*60.0*60.0;
    }
}// end time2()
// ----------------------------------------------