ref: 541539b33afc0c198e44ecce36b6b0f2030c6b3b
dir: /tests/cc/execute/0156-duff2.c/
/*
* Disgusting, no? But it compiles and runs just fine. I feel a
* combination of pride and revulsion at this discovery. If no one's
* thought of it before, I think I'll name it after myself. It amazes
* me that after 10 years of writing C there are still little corners
* that I haven't explored fully.
* - Tom Duff
*/
send(to, from, count)
register short *to, *from;
register count;
{
register 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);
}
}
int
main()
{
short a, b[40];
send(&a, b, 40);
return (a == b[39]) ? 0 : 1;
}