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From: "Ken Thomas" <kst@ecs.soton.ac.uk>
Newsgroups: comp.lang.ada
References: <fe4bb2c2.0207220726.7502e4bd@posting.google.com>
Subject: Re: Providing C function With Argv
Date: Tue, 23 Jul 2002 09:14:21 +0100
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Take a look at the interface to TCL (tash802), there is a package "Cargv"
that does the job.
http://unicoi.kennesaw.edu/ase/ase02_02/bindings/tash/

Ken Thomas

"Jeff" <jeff.huter@bigfoot.com> wrote in message
news:fe4bb2c2.0207220726.7502e4bd@posting.google.com...
> I'm in the process of extending/porting a C program to Ada.  I have an
> Ada main program that needs to call a C function with the parameters
> int argc, char **argv.  With Ada.Command_Line, I've been able to pass
> the C function with int argc.  Using Interfaces.C.Strings, I have even
> been successful supplying a modified version of the C function with a
> Interfaces.C.Strings.chars_ptr to provide the function with a single
> string Argument.  However, I can't seem to figure out how to construct
> and pass the equivalent of a C char ** in order to pass all the
> arguments at once.  My guess is that I need to use
> Interfaces.C.Pointers to construct a Pointer to chars_ptr.  But I've
> had no luck with this approach.
>
> How does one pass a C function the eqivalent of char **?  Is there any
> easier way to accomplish this than to construct the char **argv from
> Ada.Command_Line.Argument?  Working code would be much appreciated
> since I'm rather new to Ada.