[erlang-questions] Function clause question

Camille Troillard tuscland@REDACTED
Fri Dec 26 01:17:35 CET 2008

Dear list,
I have a simple best practices question:
Is it better to write:

skip ([_H | _T] = Arg, Bin) ->
    skip_count (length (Arg) + 1, Bin);
skip (<<Arg/binary>>, Bin) ->
    skip_count (size (Arg), Bin).


skip (Arg, Bin) when is_list (Arg) ->
    skip_count (length (Arg) + 1, Bin);
skip (Arg, Bin) when is_binary (Arg) ->
    skip_count (size (Arg), Bin).

I would be in favor or the second case, but I wonder if the use of guards in
this case is a very good idea.

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