Hello,
The new SWI-prolog version 3.3.0 has changed the behaviour of
atom_chars/2
( and some others )
>From the new Manual:
atom_chars/2
This predicate is now ISO compliant and thus generates a list
of one-character atoms. The behaviour of the old predicate
is available in the ---also ISO compliant--- atom_codes/2
predicate.
Safest repair is a replacement of all atom_chars into atom_codes.
Are there plans to change / update the pillow library for SWI-Prolog ?
--
Regards
Uwe
Lesta(a)t-online.de