d79dd807e6
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1744 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
45 lines
857 B
Plaintext
45 lines
857 B
Plaintext
=================================================================
|
|
Logtalk - Object oriented extension to Prolog
|
|
Release 2.29.1
|
|
|
|
Copyright (c) 1998-2006 Paulo Moura. All Rights Reserved.
|
|
=================================================================
|
|
|
|
|
|
% start by loading the loading the example:
|
|
|
|
| ?- logtalk_load(nondet(loader)).
|
|
...
|
|
|
|
|
|
% make a threaded call with a non-deterministic goal:
|
|
|
|
| ?- threaded_call(lists::member(X, [1,2,3])).
|
|
|
|
X = _G189
|
|
yes
|
|
|
|
% retrieve through backtracking all solutions for the non-deterministic goal:
|
|
|
|
| ?- threaded_exit(lists::member(X, [1,2,3])).
|
|
|
|
X = 1 ;
|
|
X = 2 ;
|
|
X = 3 ;
|
|
no
|
|
|
|
|
|
% make a threaded call by commiting to the first solution found:
|
|
|
|
| ?- threaded_once(lists::member(X, [1,2,3])).
|
|
|
|
X = _G189
|
|
yes
|
|
|
|
% retrieve through backtracking the goal solution:
|
|
|
|
| ?- threaded_exit(lists::member(X, [1,2,3])).
|
|
|
|
X = 1 ;
|
|
no
|