🚀 go-pugleaf

In article <dillon.6960@overload.Berkeley.CA.US> dillon@overload.Berkeley.CA.US (Matthew Dillon) writes:
>
>    It turns out that it is extremely easy to implement stack-based tags,
>    as someone on BIX pointed out to me.  Under 2.0, the Amiga.Lib already
>    has routines to do this for some commands.... for example,
>
>	OpenWindowTags()        -stack based tags method, tags are
>				 individual arguments to the routine
>
>	OpenWindowTagList()     -pointer to array of tags method, you
>				 pass a pointer to the tags array.

Stubs will eventually be added to amiga.lib for DOS and ASL varargs
functions, too.

>    One can easily implement one's own routine to convert a stack based
>    tags list into an array pointer tags list using VAR ARGS.  For
>    example, the implementation of SystemTags() would be:

Here's a simpler way, that doesn't use ANSI-varargs but is perfectly
valid given the Amiga stack conventions:

#include <utility/tagitem.h>

LONG SystemTags( UBYTE *command, Tag firsttag, ...)
{
    return( System( command, &firsttag ) );
}


>				    -Matt

     Peter
--
     Peter Cherna, Software Engineer, Commodore-Amiga, Inc.
     {uunet|rutgers}!cbmvax!peter    peter@cbmvax.cbm.commodore.com
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