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Re: [Bug-apl] using c libs in apl?

From: Xiao-Yong Jin
Subject: Re: [Bug-apl] using c libs in apl?
Date: Tue, 7 Feb 2017 11:30:59 -0600

It would be nice if one doesn't need to write wrappers and the APL system can 
do the
structure conversions within the APL interpreter.  In J, you can dlopen a 
and pass J values directly without writing and compiling C, see


and the relevant code is at


It would simplify using external libraries a lot.

> On Feb 4, 2017, at 7:38 AM, Juergen Sauermann <address@hidden> wrote:
> Hi,
> yes there is: native functions. You can load shared libraries and ⎕FX 
> functions in
> them to be called from APL code. The src/native directory contains a few 
> templates
> that you can use as a starting point and to call your favourite library from 
> them.
> Of course you need to provide wrappers from/to APL values to/from the data
> structures expected or produced by the libraries.
> Coming back to your other problems, if you do not like the terminal I/O of 
> GNU APL, then
> you can write your own one and call libapl from it. I have extended libapl 
> recently, giving
> you the full functionality of GNU APL without the specific ways how it 
> handles terminal IO.
> /// Jürgen
> On 02/04/2017 02:52 AM, address@hidden wrote:
>> is there method for loading a c lib and using it in apl ?  cdecl?   like 
>> this in fpc?
>> ftp://ftp.freepascal.org/fpc/docs-pdf/CinFreePascal.pdf

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