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Bug with stream implementation


From: Daniel Savard
Subject: Bug with stream implementation
Date: Sat, 05 Nov 2005 22:17:27 -0000

Seems there is a bug with the streams implementation. I am newbie to
both gnu-prolog and prolog, I am trying to save a knowledge base using
the following fragment of code. This code is working properly with
swi-prolog-lite, but not with gnu-prolog. Only the write statement
produce some output in the file.

consult('toto.pl').
open('bozo.pl',write,Fic),set_output(Fic),write(':-
dynamic(kb/2).'),nl,listing(kb),flush_output(Fic),close(Fic).

Assume the output file is bozo.pl and the knowledge base is kb and in
file toto.pl.

I tried as well this way with the same result, working fine with
swi-prolog-lite:

consult('toto.pl').
tell('bozo.pl'),write(':- dynamic(kb/2).'),nl,listing(kb),told.

I am running gnu-prolog 1.2.16 with Linux kernel 2.6.13.

TIA,

Daniel Savard

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