Legal binary syntax?

Inswitch Solutions - Erlang Evaluation <>
Tue Dec 31 10:29:44 CET 2002

Is this a legal binary syntax:

<<Len:16/unsigned, Id1:16/unsigned, Id2:16/unsigned, Pdu:Len/binary>> = Bytes,
where Bytes is a binary.

I received "Len unbound" error message.
If assignment is left to right why does this happen ?

Eduardo Figoli
INSwitch Solutions

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