Binary parsing

[Garry Hodgson]

"Inswitch Solutions - Erlang Evaluation" <erlang@REDACTED> wrote:

> I have a C/C++ port which receives bytes to be parsed for a specific =
> protocol.
> The parsing could be done in C/C++ or I can forward the bytes to Erlang =
> and
> make the parsing here.
> What would be the best choice ?
depends what you care about.  in particular, there's a tradeoff in 
runtime vs. dev time.  i'd much rather write this in erlang.  the pattern matching
on binaries is *really* nice, and writing parsers in an FPL is much cleaner
than the c/c++ equivalent.

> By means of performance how is binary pattern matching in Erlang =
> compared to C/C++ code?

i'd expect the c/c++ to run faster, but have no data to base this on.

----
Garry Hodgson, Senior Hacker, AT&T Labs

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