[erlang-questions] bit-level binaries

Francesco Pierfederici <>
Tue May 8 20:27:47 CEST 2007


Hi,

I can confirm that bitlevel binaries do indeed work on R11B-4 (haven't
tried any other release). As Bob said, you need to compile using the
bitlevel_binaries option.

Cheers,
Francesco



On 5/8/07, Bob Ippolito <> wrote:
> On 5/8/07, Waldemar Rachwal <> wrote:
> > It was mentioned a few months ago (I missed the thread) that a
> > bit-level binaries (augmented perhaps by binary comprehensions) might
> > come with a next release. I guess such a big feature should come with
> > a major release, but when it could happen then (I haven't figured out
> > the cycle of B-0's)?
> >
> > (I admit SMP is very cool these days, but the slides from '05 EUC
> > http://www.erlang.se/euc/05/1640PerKostis.pdf still impress me a lot).
>
> I believe that bit-level binaries were introduced in R11B-3 with shell
> support in R11B-4. From my notes it requires some compiler directives:
>
> -compile([binary_comprehension, bitlevel_binaries]).
>
> I haven't tried it yet...
>
> -bob
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