Calling a function more than once

Question

So I'm programming a PIC using a CCS compliler. I'm using timer interrupt and this interrupt calls a function, called chronometer, that I wrote twice. This is how it goes

void timer2_isr()
{
   j++;
   l++;
   z++;
   if (j==1)
   {
      timero=1;
      btndly=1;
      j=0;
   }
   user1= chronometer(x, l);
   user2= chronometer(pad.deger, z);
}

This function returns a struct and takes 2 integers as an argument. It works fine, when I just call the function once. However when, as in this case, I call the function twice, user2 is just equal to whatever user1 is and the code is not even working correctly. Any idea why?

chrono chronometer(int enable, int milicounter)
{
   chrono time;
   if(enable==1 && milicounter>=25)       // Eğer kronometre aktif haldeyse
      {
         milicounter=0;
         time.sec++;
         if(time.sec==60)
         {
            time.sec=0;
            time.min++;
         }
         if(time.min==60)
         {
            time.min=0;
            time.hour++;
         }
         if(time.hour==24)
            time.hour=0;
      }
   return time;
}

Answer 1

似乎您开始使用time struct而不重置其成员，从而导致了意外的结果..即使以某种方式进行了初始化..它没有引用输入参数，所以显然结果将是相同的。