> Otherwise, you would start getting negative numbers
> after a bit.

BB>    Fair enough, but I would rather not evaluate 
BB>sqrt(INT_MAX) each time through the loop, so for the price 
BB>of one more stacked identifier - const int top:-

BB>#include
BB>#include
BB>int main(void)
BB>{   int n;
BB>    const int top=(int)sqrt(INT_MAX);
BB>    for(n = 0; n     return 0;
BB>}

That bring up an interesting point.  It is such a common thing to 
compare the loop counter to a result involving the loop counter in some 
sort of function

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