I am stuck doing something which I thought was going to be simple, but now I am
not sure if it is possible.
Let's say I have a predicate like so.
something(X):-
write(X), nl.
And I use op/3 like so
op(1150, fx, something).
I expect that I can now use this as a new directive such as
:-something(abc).
But this does not work. I simply get an error
warning: unknown directive (something)/1 - maybe use initialization/1 -
directive ignored
Of course using
:-initialization(something(abc)).
will work.
Is it simply not possible to define a new directive in GNU Prolog? Or am I
making an error somewhere?
