working with binaries

[Christian S]

list_to_binary([A,B]) for concatenation.

As for sub binaries, I tend to use pattern matching.

1> A = <<"ABCDEFGHIJKLM">>.
<<65,66,67,68,69,70,71,72,73,74,75,76,77>>
2> <<_:5/binary,Sub:3/binary,_/binary>> = A.
<<65,66,67,68,69,70,71,72,73,74,75,76,77>>
3> Sub.
<<70,71,72>>

It would be interesting to hear comments on the pattern matching
approach. I tend to use the method to index individual bytes from
binaries too. Is it terribly inefficient or as low constant factor
O(1) as one can get?

On 7/11/06, Yani Dzhurov <Yani.Dzhurov@REDACTED> wrote:
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> Hi all,
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> Are there any more possible operations, except size, with binarites(<<…>>).
> I need such as appending binaries and getting sub-binaries.
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> I know I can get them by first converting to lists , operating with lists
> and then convert to binaries again, but is there a way to do it straight
> with binaries?
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> Thanx,
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> Jani
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