|Subject:||Re: Compiling the PRESS program|
|Date:||Mon, 10 Sep 2012 19:29:55 +0200|
I don't know this program but it seems pretty old. Meanwhile an ISO standard has been published.
asserta is not a directive so you cannot write:
instead you have to write:
But there are surely many other incompatibilities...
Le 08/09/2012 13:50, Gustra a écrit :Ce message a ete verifie par MailScanner
I am looking for a symbolic equation solver and I am trying to compile the
PRESS program (PRolog Equation Solving System) written by Leon Sterling et
al. I have downloaded the source from
http://dream.inf.ed.ac.uk/software/press/ and thought I'd have a go at it.
My Prolog is very rusty (about 15 years :-), so this will almost be like
starting from scratch...
According to the PRESS README, it seems the program is compiled into an
executable form using a compile() directive, but gprolog doesn't make it
that far. I promptly ran into errors at the very beginning:
/tmp/press-src/pressdir/pressjunk$ cat pload
/tmp/press-src/pressdir/pressjunk$ prolog < pload
GNU Prolog 1.3.0
By Daniel Diaz
Copyright (C) 1999-2007 Daniel Diaz
compiling /tmp/press-src/pressdir/pressjunk/filin.pl for byte code...
/tmp/press-src/pressdir/pressjunk/filin.pl:9: warning: unknown directive
asserta/1 - maybe use initialization/1 - directive ignored
<...and so on for every asserta>
and the offending lines look like this:
9 :- asserta(library_directory('/tmp/press-src/util')).
What troubles me is that the asserta/1 clause is listed in the gprolog
manual as built-in, so what do I need to do to make it available?
There are other errors reported by gprolog (eg syntax errors), but I will
attack them one at a time.
If it so happens that somebody is aware of a gprolog (or swi-prolog for
matter) working implementation of PRESS, then I would be delighted to
abandon this endeavour :-).
pour des virus ou des polluriels et rien de
suspect n'a ete trouve.
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