[erlang-questions] List comprehension puzzler
Richard A. O'Keefe
Thu Sep 22 03:07:41 CEST 2016
On 21/09/16 11:23 PM, wrote:
> I'd like to point out that it's straightforward to write
> > ...
> It's not much harder to write
> length_between([_|Xs], L, U) when L > 0 ->
> length_between(Xs, L-1, U-1);
> length_between(, L, U) ->
> L =< 0, 0 =< U;
> length_between(_, _, _) ->
The third clause was *meant* to be
length_between(, L, U)
when L =< 0, 0 =< U -> true;
Free code. Worth every mill.
Thanks to Fred Hébert for noticing this.
Too much coffee, too late at night, and too much
frustration with AirPort losing the signal every
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