Hi Salva,

It's true I am.

Can I just clarify something? Whan I *first* call prolog, the prolog engine is loaded in a second thread, so I don't need to consult the file again. Once i_prolog.pl is loaded, it stays loaded and the engine stays running until the application ends? Is that right? I had been assuming that once I exited the module all the variables cleared themselves, because thgey were out of scope. I get the feeling that this is not true. So the only reason for calling consult @files again is if the files change for any reason, eg if I dynamically alter i_prolog.pl. Have I got that right?

Thanks for your patient and expert help, it's truly invaluable.

Regards

Steve

In reply to Re^4: YASWI "Prolog System Error: Thread 1" by Steve_BZ
in thread YASWI "Prolog System Error: Thread 1" by Steve_BZ

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