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get rid of unnecessary ^ in setof 

Found bug in comparisons


git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1442 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
This commit is contained in:
vsc 2005-11-05 03:02:33 +00:00
parent e7b84f7a13
commit 7aef2d7426
3 changed files with 31 additions and 19 deletions
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9
C/absmi.c
View File

@ -10,8 +10,11 @@
* *
* File: absmi.c *
* comments: Portable abstract machine interpreter *
* Last rev: $Date: 2005-11-04 15:39:14 $,$Author: vsc $ *
* Last rev: $Date: 2005-11-05 03:02:33 $,$Author: vsc $ *
* $Log: not supported by cvs2svn $
* Revision 1.181 2005/11/04 15:39:14 vsc
* absmi should PREG, never P!!
*
* Revision 1.180 2005/10/28 17:38:49 vsc
* sveral updates
*
@ -10119,6 +10122,7 @@ Yap_absmi(int inp)
BEGP(pt0);
deref_body(d0, pt0, call_bfunc_xx_unk, call_bfunc_xx_nvar);
d1 = Deref(d1);
goto exec_bin_cmp_xx;
ENDP(pt0);
@ -10191,6 +10195,7 @@ Yap_absmi(int inp)
BEGP(pt0);
deref_body(d0, pt0, call_bfunc_yx_unk, call_bfunc_yx_nvar);
d1 = Deref(d1);
goto exec_bin_cmp_yx;
ENDP(pt0);
@ -10263,6 +10268,7 @@ Yap_absmi(int inp)
BEGP(pt0);
deref_body(d0, pt0, call_bfunc_xy_unk, call_bfunc_xy_nvar);
d1 = Deref(d1);
goto exec_bin_cmp_xy;
ENDP(pt0);
@ -10338,6 +10344,7 @@ Yap_absmi(int inp)
BEGP(pt0);
deref_body(d0, pt0, call_bfunc_yy_unk, call_bfunc_yy_nvar);
d1 = Deref(d1);
goto exec_bin_cmp_yy;
ENDP(pt0);

3
changes-5.1.html
View File

@ -16,6 +16,9 @@
<h2>Yap-5.1.0:</h2>
<ul>
<li> FIXED: if first argument was unbound, comparisons might be
called with second argument undereferenced!! </li>
<li> FIXED: strip ^ before doing execute in setof or bagof. </li>
<li> FIXED: use CONST declarations in interface (thanks to Roberto Bagnara). </li>
<li> FIXED: absmi should consult PREG, not P. </li>
<li> FIXED: bad init in tabling code. </li>

38
pl/setof.yap
View File

@ -114,13 +114,13 @@ bagof(Template, Generator, Bag) :-
'$bagof'(Template, Generator, Bag) :-
'$check_list_for_bags'(Bag, bagof(Template, Generator, Bag)),
'$variables_in_term'(Template, [], TemplateV),
'$excess_vars'(Generator, TemplateV, [], FreeVars),
'$excess_vars'(Generator, StrippedGenerator, TemplateV, [], FreeVars),
FreeVars \== [],
!,
'$variables_in_term'(FreeVars, [], LFreeVars),
Key =.. ['$'|LFreeVars],
'$init_db_queue'(Ref),
'$findall_with_common_vars'(Key-Template, Generator, Ref, Bags0),
'$findall_with_common_vars'(Key-Template, StrippedGenerator, Ref, Bags0),
'$keysort'(Bags0, Bags),
'$pick'(Bags, Key, Bag).
% or we just have a list of answers
@ -155,38 +155,40 @@ bagof(Template, Generator, Bag) :-
%
% Detect free variables in the source term
%
'$excess_vars'(V, X, L0, L) :-
'$excess_vars'(V, V, X, L0, L) :-
var(V),
!,
( '$doesnt_include'(X, V) -> L = [V|L0]
; L = L0
).
'$excess_vars'(A, _, L, L) :-
'$excess_vars'(A, A, _, L, L) :-
atomic(A), !.
'$excess_vars'(X^P, Y, L0, L) :- !,
'$excess_vars'(X^P, NP, Y, L0, L) :- !,
'$variables_in_term'(X+Y, [], NY),
'$excess_vars'(P, NY, L0, L).
'$excess_vars'(setof(X,P,S), Y, L0, L) :- !,
'$excess_vars'(P, NP, NY, L0, L).
'$excess_vars'(setof(X,P,S), setof(X,P,S), Y, L0, L) :- !,
'$variables_in_term'(X+Y, [], NY),
'$excess_vars'((P,S), NY, L0, L).
'$excess_vars'(bagof(X,P,S), Y, L0, L) :- !,
'$excess_vars'((P,S), _, NY, L0, L).
'$excess_vars'(bagof(X,P,S), bagof(X,P,S), Y, L0, L) :- !,
'$variables_in_term'(X+Y, [], NY),
'$excess_vars'((P,S), NY, L0, L).
'$excess_vars'(findall(_,_,S), Y, L0, L) :- !,
'$excess_vars'((P,S), _, NY, L0, L).
'$excess_vars'(findall(X,P,S), findall(X,P,S), Y, L0, L) :- !,
'$excess_vars'(S, Y, L0, L).
'$excess_vars'(findall(_,_,_,S), Y, L0, L) :- !,
'$excess_vars'(S, Y, L0, L).
'$excess_vars'(\+_, _, L0, LF) :- !,
'$excess_vars'(findall(X,P,S0,S), (X,P,S0,S), Y, L0, L) :- !,
'$excess_vars'(S, _, Y, L0, L).
'$excess_vars'(\+G, \+G, _, L0, LF) :- !,
L0 = LF.
'$excess_vars'(_:G, Y, L0, LF) :- !,
'$excess_vars'(G, Y, L0, LF).
'$excess_vars'(T, X, L0, L) :-
'$excess_vars'(_:M:G, M:NG, Y, L0, LF) :- !,
'$excess_vars'(G, NG, Y, L0, LF).
'$excess_vars'(M:G, M:NG, Y, L0, LF) :- !,
'$excess_vars'(G, NG, Y, L0, LF).
'$excess_vars'(T, T, X, L0, L) :-
T =.. [_|LArgs],
'$recurse_for_excess_vars'(LArgs, X, L0, L).
'$recurse_for_excess_vars'([], _, L, L).
'$recurse_for_excess_vars'([T1|LArgs], X, L0, L) :-
'$excess_vars'(T1, X, L0, L1),
'$excess_vars'(T1, _, X, L0, L1),
'$recurse_for_excess_vars'(LArgs, X, L1, L).
'$doesnt_include'([], _).