Explanation, please!

[Daniel R. Levy]

< void send(int *to,int *from, int count) {
<    int n = (count + 7) / 8;
<    
<    switch(count % 8) {
<       case 0:  do { *to++ = *from++;
<       case 7:       *to++ = *from++;
<       case 6:       *to++ = *from++;
<       case 5:       *to++ = *from++;
<       case 4:       *to++ = *from++;
<       case 3:       *to++ = *from++;
<       case 2:       *to++ = *from++;
<       case 1:       *to++ = *from++;
<                } while (--n > 0);
<    }
< }

Question:  what if count==0?
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|------------Dan Levy------------|  THE OPINIONS EXPRESSED HEREIN ARE MINE ONLY
| Bell Labs Area 61 (R.I.P., TTY)|  AND ARE NOT TO BE IMPUTED TO AT&T.
|        Skokie, Illinois        | 
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