Internal binary representation

[James Hague]

I've read "Protocol Programming in Erlang Using Binaries," the experimental
prototype for Erlang's upcoming enhancements to binaries.  In this doc,
there's an explanation of how binaries are represented internally.  My
question:  Is this similar to how binaries are currently implemented or
simply how the prototype worked?

Mostly, I'm curious how expensive split_binary is.  I know it returns two
new binaries in addition to the original, but is that done on a logical
level or does it copy the data?

James

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