Problem with bit syntax compilation
Jouni.Ryno@REDACTED
Jouni.Ryno@REDACTED
Mon Apr 16 21:30:43 CEST 2001
> "Jouni Ryno" <jouni.ryno@REDACTED> writes:
>
> > error(Test) ->
> > if
> > Test == 1 ->
> > Problem = 1;
> > Test == 2 ->
> > Problem = 2
> > end,
> > Dummy = 1,
> > OKbin = <<Test:7, Dummy:9>>, % used only to prove, that it works
> > normally
> > MyBin = [<<Test:7, Problem:9>>, OKbin].
> >
> > I get compilation error from erlc test.erl (eshell V5.0.2
>
> Although it does look like a bug, you missed the warning:
>
> /tmp/test.erl:12: Warning: variable 'Problem' exported from 'if' (line 4)
>
I do NOT get the warning ! Hmm, do you get the warning, if you add the
fallback
true ->
Problem = 3 % default
??
But the following does make it work, even in my real life case !
Thanks !
> So instead try:
>
> ,----
> | error(Test) ->
> | Problem = if
> | Test == 1 ->
> | 1;
> | Test == 2 ->
> | 2
> | end,
> | Dummy = 1,
> | OKbin = <<Test:7, Dummy:9>>,
> | MyBin = [<<Test:7, Problem:9>>, OKbin].
> `----
>
>
> Regards,
> --Daniel
>
> --
> Daniel Neri
> dne@REDACTED
Jouni Rynö mailto://Jouni.Ryno@fmi.fi/
http://www.geo.fmi.fi/~ryno/
Finnish Meteorological Institute http://www.fmi.fi/
Geophysical Research http://www.geo.fmi.fi/
P.O.BOX 503 Tel (+358)-9-19294656
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"It's just zeros and ones, it cannot be hard"
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