[erlang-bugs] erl_interface: badarg on specific inputs

Björn-Egil Dahlberg <>
Mon May 11 12:23:38 CEST 2009


Hi Davide,

I want to thank you for taking your time to point out some problems with 
erl_interface and say that I agree with you that its Howto/Tutorial 
needs some sort of overhaul and additions.

I will take a look at your repo and your suggestions.

Regards,
Björn-Egil
Erlang/OTP



Davide Marquês wrote:
> Hi all,
> 
> I hope I'm not abusing this mailing list with this email. I posted the 
> problem
> earlier today on erlang-questions:
> http://www.erlang.org/pipermail/erlang-questions/2009-May/043577.html
> but I'm guessing there aren't many erl_interface [on windows] users.
> Since this might be a bug here goes...
> 
> Under certain inputs my basic port programs are simply breaking:
> 
> 4> echo:echo("aaa aaaaaa").
> 
> sending to port: {echo,{"aaa aaaaaa"}}
> 
> =ERROR REPORT==== 4-May-2009::16:11:15 ===
> catch: error:badarg
> 
> This might be simply due to bad coding on my part but I've tried to keep it
> simple to rule that out. I was able to replicate the problem with 
> erl_interface-3.6.1
> (.lib that come with the binary windows distribution; a MSVC build; and 
> a MinGW build)
> and erl_interface-3.5.9 (MinGW build only).
> 
> The [failing] code is available here:
> http://github.com/davide/erl_interface-examples/tree/master
> A sure way to get the echo program to fail is: echo:echo("New Folder").
> 
> I'm welcoming any feedback! Even if it's just to point out that I'm 
> doing something
> really dumb (I can live with that). :)
> 
> On a side note, on the docs folder I documented my experience of trying
> (and failing) to build erlang on Windows (using Visual C++ 2008 Express 
> Edition).
> As the details might be revelant to other users please consider updating
> README.WIN32 to get it into a step-by-step/How-To style 
> <http://github.com/davide/erl_interface-examples/blob/1443a11bd6aa5aa4b6030c9fec1d6c4ff360dd57/doc/Building%20erlang%20on%20Windows.txt>.
> 
> Cheers,
> :Davide
> 
> 
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