[erlang-questions] Proposal for is_iolist/1 guard

Robert Virding <>
Tue May 26 15:50:40 CEST 2009


Unfortunately not, as an iolist can also be a nested list strucure
containing bytes/characters and binaries.

Robert

2009/5/26 Oscar Hellström <>

> Hi Maxim,
>
> Wouldn't is_list(X); is_binary(X) be enough?
>
> Maxim Treskin wrote:
> > Hello
> >
> > I see, erlang does not have is_iolist/1 guard, while iolist() type
> > used in some places in OTP (i.e. ports interaction).
> > Is it possible to add this BIF?
> >
> > Thank you.
> >
> > --
> > Maxim Treskin
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > erlang-questions mailing list
> > 
> > http://www.erlang.org/mailman/listinfo/erlang-questions
> Best regards
>
> --
> Oscar Hellström, 
> Office: +44 20 7655 0337
> Mobile: +44 798 45 44 773
> Erlang Training and Consulting Ltd
> http://www.erlang-consulting.com/
>
> _______________________________________________
> erlang-questions mailing list
> 
> http://www.erlang.org/mailman/listinfo/erlang-questions
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20090526/72f09cd3/attachment.html>


More information about the erlang-questions mailing list