[erlang-questions] illegal guard expression with lists:nth
Roberto Ostinelli
roberto@REDACTED
Thu Jun 11 11:50:09 CEST 2009
hi bengt,
exactly, this is my point. i'm used therefore to nest everything in
case expressions, such as
case lists:nth(2,List) of
"test"
[...]
and this does work. thus am i missing a point why this shouldn't be
allowed in if expressions?
On 11/giu/09, at 11:48, Bengt Kleberg wrote:
> Greetings,
>
> Not all functions are allowed in a guard. I can not think of any
> function outside of the ones in the erlang module (like
> erlang:length/1)
> that are allowed.
>
>
> bengt
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