On Fri, Feb 6, 2009 at 2:30 PM, Andrei Alexandrescu
<seewebsiteforem...@erdani.org> wrote:
> Walter Bright wrote:
>>
>> double euclideanDistance(Range)(Range a, Range b, double limit)
>> {
>> limit *= limit;
>> double result = 0;
>> for (; 1; a.next, b.next)
>> {
>> if (a.empty)
>> {
>> enforce(b.empty);
>> break;
>> }
>> enforce(!b.empty);
>> auto t = a.head - b.head;
>> result += t * t;
>> if (result >= limit) break;
>> }
>> return sqrt(result);
>> }
>
> Gotta give it to The Man!
>
> So after all I couldn't find a good use for goto.
Meh. I dislike seeing things like for(; 1; ) or while(true) in a loop
(unless it's something like a top level message processing loop or
such). At least in your goto version I know from a glance at the
for() part that at most we're going to iterate till the thing is
empty.
--bb
