[erlang-questions] Bit String Comprehension Question

[David Mercer]

My question, however, is regarding bit string comprehension, not list
comprehension.  Please advise.  Thank-you.

> -----Original Message-----
> From: Grasl Christoph [mailto:C.Grasl@REDACTED]
> Sent: Tuesday, September 09, 2008 09:55
> To: dmercer@REDACTED; erlang-questions@REDACTED
> Subject: AW: [erlang-questions] Bit String Comprehension Question
> 
> Dear, David
> 
> [Bin || Bin <- [<<3:5>>] ].
> 
> works fine..
> 
> the syntactical notation for a list comprehension needs to be in '[' & ]'
> whereas you have used the binary/bitstring syntax to 'bracket' your
> comprehension
> together with the '||', which is typically a list-comp.
> could be mistaken, but it looks like u'r mixing up to notations..
> 
> Cheers,
> 
> Christoph Grasl
> Embedded Software Entwickler
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> -----Ursprüngliche Nachricht-----
> Von: erlang-questions-bounces@REDACTED im Auftrag von David Mercer
> Gesendet: Di 09.09.2008 16:18
> An: 'erlang-questions'
> Betreff: [erlang-questions] Bit String Comprehension Question
> 
> Why does the bit-string comprehension #133 below work whereas #134 is a
> syntax error?
> 
> 
> 
> 133> << <<X:N>> || {X,N} <- [{3,5}] >>.
> 
> 
> <<3:5>>
> 
> 134> << Bin || Bin <- [<<3:5>>] >>.
> 
> * 1: syntax error before: '||'
> 
> 
> 
> Please advise.  Thank-you.
> 
> 
> 
> David Mercer
> 
> 
> 
> 
>