[erlang-questions] missing function

French, Mike <>
Tue Dec 23 14:00:14 CET 2008


string:chr ?

Mike

> -----Original Message-----
> From: 
> [mailto:]On Behalf Of 
> Serge Aleynikov
> Sent: 23 December 2008 12:39
> To: Robert Virding
> Cc: 
> Subject: Re: [erlang-questions] missing function
> 
> 
> There's been a discussion about very same subject in this thread:
> 
> http://www.erlang.org/pipermail/erlang-questions/2008-November
> /040189.html
> 
> I also hope OTP folks can include it in the lists module.
> 
> Serge
> 
> Robert Virding wrote:
> > There are two points about your question:
> > 
> > 1. It is not strange that you cannot find such a function, 
> it does not exist
> > in the libraries. :-)
> > 
> > 2. It may also be strange that one does not exist, but so 
> far no one has
> > seen a need to add it to lists where it would belong.
> > 
> > Robert
> > 
> > 2008/12/23 Maxim Treskin <>
> > 
> >> Hello
> >>
> >> I can't find standard function which returns position of 
> element in list
> >> like:
> >>
> >> num(El, List) ->
> >>     num(El, List, 1).
> >>
> >> num(_, [], _) -> {error, not_found};
> >> num(El, [H|T], Acc) ->
> >>     case H of
> >>         El -> Acc;
> >>         _ -> num(El, T, Acc+1)
> >>     end.
> >>
> >> I think it strange. Can you clarify this point?
> >>
> >> Thank you.
> >>
> >> --
> >> Maxim Treskin
> >>
> >> _______________________________________________
> >> erlang-questions mailing list
> >> 
> >> http://www.erlang.org/mailman/listinfo/erlang-questions
> >>
> > 
> > 
> > 
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