Merge branch 'master' of yap.dcc.fc.up.pt:yap-6

This commit is contained in:
Vítor Santos Costa 2010-05-19 17:17:47 +01:00
commit b0de1c597f
17 changed files with 129 additions and 168 deletions

View File

@ -9012,17 +9012,13 @@ Yap_absmi(int inp)
Op(index_blob, e);
PREG = NEXTOP(PREG, e);
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
I_R = MkIntTerm(SREG[0]^SREG[1]);
#else
I_R = MkIntTerm(SREG[0]);
#endif
I_R = Yap_DoubleP_key(SREG);
GONext();
ENDOp();
Op(index_long, e);
PREG = NEXTOP(PREG, e);
I_R = MkIntTerm(SREG[0] & (MAX_ABS_INT-1));
I_R = Yap_IntP_key(SREG);
GONext();
ENDOp();

105
C/index.c
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@ -1802,14 +1802,11 @@ add_arg_info(ClauseDef *clause, PredEntry *ap, UInt argno)
case _unify_bigint:
case _unify_l_bigint:
if (argno == 1) {
#ifdef USE_GMP
clause->Tag = AbsAppl((CELL *)FunctorBigInt);
#else
clause->Tag = AbsAppl((CELL *)FunctorLongInt);
#endif
clause->u.t_ptr = cl->u.oc.c;
return;
}
cl = NEXTOP(cl,oc);
argno--;
break;
case _unify_n_atoms:
@ -2714,7 +2711,7 @@ do_funcs(GroupDef *grp, Term t, struct intermediates *cint, UInt argno, int firs
if (IsExtensionFunctor(f)) {
if (f == FunctorDBRef)
ifs->u.Label = do_dbref_index(min, max, t, cint, argno, nxtlbl, first, clleft, top);
else if (f == FunctorLongInt)
else if (f == FunctorLongInt || f == FunctorBigInt)
ifs->u.Label = do_blob_index(min, max, t, cint, argno, nxtlbl, first, clleft, top, FALSE);
else
ifs->u.Label = do_blob_index(min, max, t, cint, argno, nxtlbl, first, clleft, top, TRUE);
@ -3238,15 +3235,9 @@ do_blob_index(ClauseDef *min, ClauseDef* max, Term t, struct intermediates *cint
if (cl->u.t_ptr == (CELL)NULL) { /* check whether it is a builtin */
cl->Tag = Zero;
} else if (blob) {
CELL *pt = RepAppl(cl->u.t_ptr);
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
cl->Tag = MkIntTerm(pt[1]^pt[2]);
#else
cl->Tag = MkIntTerm(pt[1]);
#endif
cl->Tag = Yap_Double_key(cl->u.t_ptr);
} else {
CELL *pt = RepAppl(cl->u.t_ptr);
cl->Tag = MkIntTerm((pt[1] & (MAX_ABS_INT-1)));
cl->Tag = Yap_Int_key(cl->u.t_ptr);
}
cl++;
}
@ -3498,24 +3489,13 @@ install_clause(ClauseDef *cls, PredEntry *ap, istack_entry *stack)
if (f == FunctorDBRef) {
if (cls->u.t_ptr != sp->extra) break;
} else if (f == FunctorDouble) {
CELL *pt = RepAppl(sp->extra);
if (cls->u.t_ptr) {
CELL *pt1 = RepAppl(cls->u.t_ptr);
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
Term t = MkIntTerm(pt[1]^pt[2]),
t1 = MkIntTerm(pt1[1]^pt1[2]);
#else
Term t = MkIntTerm(pt[1]),
t1 = MkIntTerm(pt1[1]);
#endif
if (t != t1) break;
}
if (cls->u.t_ptr &&
Yap_Double_key(sp->extra) != Yap_Double_key(cls->u.t_ptr))
break;
} else {
CELL *pt = RepAppl(sp->extra);
CELL *pt1 = RepAppl(cls->u.t_ptr);
Term t = MkIntTerm(pt[1] & (MAX_ABS_INT-1)),
t1 = MkIntTerm(pt1[1] & (MAX_ABS_INT-1));
if (t != t1) break;
if (cls->u.t_ptr &&
Yap_Int_key(sp->extra) != Yap_Int_key(cls->u.t_ptr))
break;
}
}
}
@ -3662,22 +3642,13 @@ install_log_upd_clause(ClauseDef *cls, PredEntry *ap, istack_entry *stack)
if (f == FunctorDBRef) {
if (cls->u.t_ptr != sp->extra) break;
} else if (f == FunctorDouble) {
CELL *pt = RepAppl(sp->extra);
CELL *pt1 = RepAppl(cls->u.t_ptr);
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
Term t = MkIntTerm(pt[1]^pt[2]),
t1 = MkIntTerm(pt1[1]^pt1[2]);
#else
Term t = MkIntTerm(pt[1]),
t1 = MkIntTerm(pt1[1]);
#endif
if (t != t1) break;
if (cls->u.t_ptr &&
Yap_Double_key(sp->extra) != Yap_Double_key(cls->u.t_ptr))
break;
} else {
CELL *pt = RepAppl(sp->extra);
CELL *pt1 = RepAppl(cls->u.t_ptr);
Term t = MkIntTerm(pt[1] & (MAX_ABS_INT-1)),
t1 = MkIntTerm(pt1[1] & (MAX_ABS_INT-1));
if (t != t1) break;
if (cls->u.t_ptr &&
Yap_Int_key(sp->extra) != Yap_Int_key(cls->u.t_ptr))
break;
}
}
}
@ -4109,17 +4080,13 @@ expand_index(struct intermediates *cint) {
ipc = NEXTOP(ipc,e);
break;
case _index_blob:
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
t = MkIntTerm(s_reg[0]^s_reg[1]);
#else
t = MkIntTerm(s_reg[0]);
#endif
t = Yap_DoubleP_key(s_reg);
sp[-1].extra = AbsAppl(s_reg-1);
s_reg = NULL;
ipc = NEXTOP(ipc,e);
break;
case _index_long:
t = MkIntTerm((s_reg[0] & (MAX_ABS_INT-1)));
t = Yap_IntP_key(s_reg);
sp[-1].extra = AbsAppl(s_reg-1);
s_reg = NULL;
ipc = NEXTOP(ipc,e);
@ -5935,21 +5902,11 @@ add_to_index(struct intermediates *cint, int first, path_stack_entry *sp, Clause
ipc = NEXTOP(ipc,e);
break;
case _index_blob:
{
CELL *pt = RepAppl(cls->u.t_ptr);
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
cls->Tag = MkIntTerm(pt[1]^pt[2]);
#else
cls->Tag = MkIntTerm(pt[1]);
#endif
}
cls->Tag = Yap_Double_key(cls->u.t_ptr);
ipc = NEXTOP(ipc,e);
break;
case _index_long:
{
CELL *pt = RepAppl(cls->u.t_ptr);
cls->Tag = MkIntTerm((pt[1] & (MAX_ABS_INT-1)));
}
cls->Tag = Yap_Int_key(cls->u.t_ptr);
ipc = NEXTOP(ipc,e);
break;
case _switch_on_cons:
@ -6436,21 +6393,11 @@ remove_from_index(PredEntry *ap, path_stack_entry *sp, ClauseDef *cls, yamop *bg
ipc = NEXTOP(ipc,e);
break;
case _index_blob:
{
CELL *pt = RepAppl(cls->u.t_ptr);
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
cls->Tag = MkIntTerm(pt[1]^pt[2]);
#else
cls->Tag = MkIntTerm(pt[1]);
#endif
}
cls->Tag = Yap_Double_key(cls->u.t_ptr);
ipc = NEXTOP(ipc,e);
break;
case _index_long:
{
CELL *pt = RepAppl(cls->u.t_ptr);
cls->Tag = MkIntTerm(pt[1] & (MAX_ABS_INT-1));
}
cls->Tag = Yap_Int_key(cls->u.t_ptr);
ipc = NEXTOP(ipc,e);
break;
case _switch_on_cons:
@ -7109,15 +7056,11 @@ Yap_FollowIndexingCode(PredEntry *ap, yamop *ipc, Term Terms[3], yamop *ap_pc, y
ipc = NEXTOP(ipc,e);
break;
case _index_blob:
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
t = MkIntTerm(s_reg[0]^s_reg[1]);
#else
t = MkIntTerm(s_reg[0]);
#endif
t = Yap_DoubleP_key(s_reg);
ipc = NEXTOP(ipc,e);
break;
case _index_long:
t = MkIntTerm(s_reg[0] & (MAX_ABS_INT-1));
t = Yap_IntP_key(s_reg);
ipc = NEXTOP(ipc,e);
break;
case _switch_on_cons:

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@ -172,7 +172,10 @@ low_level_trace(yap_low_level_port port, PredEntry *pred, CELL *args)
LOCK(Yap_heap_regs->low_level_trace_lock);
sc = Yap_heap_regs;
vsc_count++;
#ifdef THREADS
if (vsc_count == 7188) jmp_deb(1);
if (vsc_count < 7000)
return;
#ifdef THREADS
MY_ThreadHandle.thread_inst_count++;
#endif
#ifdef COMMENTED

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@ -551,3 +551,41 @@ unify_extension (Functor f, CELL d0, CELL * pt0, CELL d1)
}
return (FALSE);
}
static inline
CELL Yap_IntP_key(CELL *pt)
{
#ifdef USE_GMP
if (((Functor)pt[-1] == FunctorBigInt)) {
MP_INT *b1 = Yap_BigIntOfTerm(AbsAppl(pt-1));
/* first cell in program */
CELL val = ((CELL *)(b1+1))[0];
return MkIntTerm(val & (MAX_ABS_INT-1));
}
#endif
return MkIntTerm(pt[0] & (MAX_ABS_INT-1));
}
static inline
CELL Yap_Int_key(Term t)
{
return Yap_IntP_key(RepAppl(t)+1);
}
static inline
CELL Yap_DoubleP_key(CELL *pt)
{
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
CELL val = pt[0]^pt[1];
#else
CELL val = pt[0];
#endif
return MkIntTerm(val & (MAX_ABS_INT-1));
}
static inline
CELL Yap_Double_key(Term t)
{
return Yap_DoubleP_key(RepAppl(t)+1);
}

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@ -670,8 +670,12 @@
break;
case _get_bigint:
if (is_regcopy(myregs, nofregs, cl->u.xc.x)) {
clause->Tag = AbsAppl((CELL *)FunctorBigInt);
clause->u.t_ptr = (CELL)NULL;
if (IsApplTerm(cl->u.xc.c)) {
CELL *pt = RepAppl(cl->u.xc.c);
clause->Tag = AbsAppl((CELL *)pt[0]);
clause->u.t_ptr = cl->u.xc.c;
} else
clause->Tag = cl->u.xc.c;
return;
}
cl = NEXTOP(cl,xc);

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@ -567,8 +567,12 @@
break;
case _get_bigint:
if (iarg == cl->u.xc.x) {
clause->Tag = AbsAppl((CELL *)FunctorBigInt);
clause->u.t_ptr = (CELL)NULL;
if (IsApplTerm(cl->u.xc.c)) {
CELL *pt = RepAppl(cl->u.xc.c);
clause->Tag = AbsAppl((CELL *)pt[0]);
clause->u.t_ptr = cl->u.xc.c;
} else
clause->Tag = cl->u.xc.c;
return;
}
cl = NEXTOP(cl,xc);

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@ -37,7 +37,9 @@
#ifdef TABLING
static Int p_freeze_choice_point(void);
static Int p_wake_choice_point(void);
static Int p_abolish_all_frozen_choice_points(void);
static Int p_reset_frozen_choice_points(void);
static Int p_abolish_frozen_choice_points_until(void);
static Int p_abolish_frozen_choice_points_all(void);
static Int p_table(void);
static Int p_tabling_mode(void);
static Int p_abolish_table(void);
@ -122,7 +124,8 @@ void Yap_init_optyap_preds(void) {
#ifdef TABLING
Yap_InitCPred("freeze_choice_point", 1, p_freeze_choice_point, SafePredFlag|SyncPredFlag);
Yap_InitCPred("wake_choice_point", 1, p_wake_choice_point, SafePredFlag|SyncPredFlag);
Yap_InitCPred("abolish_all_frozen_choice_points", 0, p_abolish_all_frozen_choice_points, SafePredFlag|SyncPredFlag);
Yap_InitCPred("abolish_frozen_choice_points", 1, p_abolish_frozen_choice_points_until, SafePredFlag|SyncPredFlag);
Yap_InitCPred("abolish_frozen_choice_points", 0, p_abolish_frozen_choice_points_all, SafePredFlag|SyncPredFlag);
Yap_InitCPred("$c_table", 2, p_table, SafePredFlag|SyncPredFlag|HiddenPredFlag);
Yap_InitCPred("$c_tabling_mode", 3, p_tabling_mode, SafePredFlag|SyncPredFlag|HiddenPredFlag);
Yap_InitCPred("$c_abolish_table", 2, p_abolish_table, SafePredFlag|SyncPredFlag|HiddenPredFlag);
@ -170,32 +173,32 @@ void finish_yapor(void) {
#ifdef TABLING
static Int p_freeze_choice_point(void) {
Term term_arg, term_cp;
term_arg = Deref(ARG1);
if (IsVarTerm(term_arg)) {
choiceptr cp = freeze_current_cp();
term_cp = MkIntegerTerm((Int) cp);
return Yap_unify(ARG1, term_cp);
if (IsVarTerm(Deref(ARG1))) {
Int offset = freeze_current_cp();
return Yap_unify(ARG1, MkIntegerTerm(offset));
}
return (FALSE);
}
static Int p_wake_choice_point(void) {
Term term_arg;
term_arg = Deref(ARG1);
if (IsIntegerTerm(term_arg)) {
choiceptr cp = (choiceptr) IntegerOfTerm(term_arg);
resume_frozen_cp(cp);
}
Term term_offset = Deref(ARG1);
if (IsIntegerTerm(term_offset))
wake_frozen_cp(IntegerOfTerm(term_offset));
return (FALSE);
}
static Int p_abolish_all_frozen_choice_points(void) {
abolish_all_frozen_cps();
static Int p_abolish_frozen_choice_points_until(void) {
Term term_offset = Deref(ARG1);
if (IsIntegerTerm(term_offset))
abolish_frozen_cps_until(IntegerOfTerm(term_offset));
return (TRUE);
}
static Int p_abolish_frozen_choice_points_all(void) {
abolish_frozen_cps_all();
return (TRUE);
}

27
OPTYap/tab.macros.h Executable file → Normal file
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@ -21,9 +21,10 @@
#endif /* HAVE_STRING_H */
#include "opt.mavar.h"
static inline choiceptr freeze_current_cp(void);
static inline void resume_frozen_cp(choiceptr);
static inline void abolish_all_frozen_cps(void);
static inline Int freeze_current_cp(void);
static inline void wake_frozen_cp(Int);
static inline void abolish_frozen_cps_until(Int);
static inline void abolish_frozen_cps_all(void);
static inline void adjust_freeze_registers(void);
static inline void mark_as_completed(sg_fr_ptr);
static inline void unbind_variables(tr_fr_ptr, tr_fr_ptr);
@ -421,7 +422,7 @@ static inline tg_sol_fr_ptr CUT_prune_tg_solution_frames(tg_sol_fr_ptr, int);
** Inline funcions **
******************************/
static inline choiceptr freeze_current_cp(void) {
static inline Int freeze_current_cp(void) {
choiceptr freeze_cp = B;
B_FZ = freeze_cp;
@ -429,11 +430,13 @@ static inline choiceptr freeze_current_cp(void) {
TR_FZ = freeze_cp->cp_tr;
B = B->cp_b;
HB = B->cp_h;
return freeze_cp;
return (Yap_LocalBase - (ADDR)freeze_cp);
}
static inline void resume_frozen_cp(choiceptr frozen_cp) {
static inline void wake_frozen_cp(Int frozen_offset) {
choiceptr frozen_cp = (choiceptr)(Yap_LocalBase - frozen_offset);
restore_bindings(TR, frozen_cp->cp_tr);
B = frozen_cp;
TR = TR_FZ;
@ -442,7 +445,17 @@ static inline void resume_frozen_cp(choiceptr frozen_cp) {
}
static inline void abolish_all_frozen_cps(void) {
static inline void abolish_frozen_cps_until(Int frozen_offset) {
choiceptr frozen_cp = (choiceptr)(Yap_LocalBase - frozen_offset);
B_FZ = frozen_cp;
H_FZ = frozen_cp->cp_h;
TR_FZ = frozen_cp->cp_tr;
return;
}
static inline void abolish_frozen_cps_all(void) {
B_FZ = (choiceptr) Yap_LocalBase;
H_FZ = (CELL *) Yap_GlobalBase;
TR_FZ = (tr_fr_ptr) Yap_TrailBase;

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@ -17,6 +17,8 @@
<h2>Yap-6.0.6:</h2>
<ul>
<li> FIXED: fix problems in indexing compiled bignums (obs from Jos de
Roo), center hash computing code in TermExt.h.</li>
<li> FIXED: similar problem in unify_dbterm.</li>
<li> FIXED: bug in implementation of unify_bigint instruction (obs
from Jos de Roo).</li>

4
configure vendored
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@ -6590,7 +6590,7 @@ fi
LDFLAGS="-dynamic $LDFLAGS"
;;
x86*)
JAVALIBPATH="\$(LIBDIR)/libYap.so \$(YAPLIBDIR)/plstream.so $LIBS -L$JAVA_HOME/jre/lib/amd64 -L$JAVA_HOME/jre/lib/amd64/client -L$JAVA_HOME/jre/lib/amd64/server"
JAVALIBPATH="\$(DESTDIR)\$(LIBDIR)/libYap.so \$(DESTDIR)\$(YAPLIBDIR)/plstream.so $LIBS -L$JAVA_HOME/jre/lib/amd64 -L$JAVA_HOME/jre/lib/amd64/client -L$JAVA_HOME/jre/lib/amd64/server"
JAVAINCPATH="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux"
if test "$CC" != "lcc"
then
@ -6598,7 +6598,7 @@ fi
fi
;;
*)
JAVALIBPATH="\$(LIBDIR)/libYap.so \$(YAPLIBDIR)/plstream.so $LIBS $LIBS -L$JAVA_HOME/jre/lib/i386 -L$JAVA_HOME/jre/lib/i386/client -L$JAVA_HOME/jre/lib/i386/server"
JAVALIBPATH="\$(DESTDIR)\$(LIBDIR)/libYap.so \$(DESTDIR)\$(YAPLIBDIR)/plstream.so $LIBS $LIBS -L$JAVA_HOME/jre/lib/i386 -L$JAVA_HOME/jre/lib/i386/client -L$JAVA_HOME/jre/lib/i386/server"
JAVAINCPATH="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux"
if test "$CC" != "lcc"
then

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@ -810,7 +810,7 @@ case "$target_os" in
LDFLAGS="-dynamic $LDFLAGS"
;;
x86*)
JAVALIBPATH="\$(LIBDIR)/libYap.so \$(YAPLIBDIR)/plstream.so $LIBS -L$JAVA_HOME/jre/lib/amd64 -L$JAVA_HOME/jre/lib/amd64/client -L$JAVA_HOME/jre/lib/amd64/server"
JAVALIBPATH="\$(DESTDIR)\$(LIBDIR)/libYap.so \$(DESTDIR)\$(YAPLIBDIR)/plstream.so $LIBS -L$JAVA_HOME/jre/lib/amd64 -L$JAVA_HOME/jre/lib/amd64/client -L$JAVA_HOME/jre/lib/amd64/server"
JAVAINCPATH="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux"
if test "$CC" != "lcc"
then
@ -818,7 +818,7 @@ case "$target_os" in
fi
;;
*)
JAVALIBPATH="\$(LIBDIR)/libYap.so \$(YAPLIBDIR)/plstream.so $LIBS $LIBS -L$JAVA_HOME/jre/lib/i386 -L$JAVA_HOME/jre/lib/i386/client -L$JAVA_HOME/jre/lib/i386/server"
JAVALIBPATH="\$(DESTDIR)\$(LIBDIR)/libYap.so \$(DESTDIR)\$(YAPLIBDIR)/plstream.so $LIBS $LIBS -L$JAVA_HOME/jre/lib/i386 -L$JAVA_HOME/jre/lib/i386/client -L$JAVA_HOME/jre/lib/i386/server"
JAVAINCPATH="-I$JAVA_HOME/include -I$JAVA_HOME/include/linux"
if test "$CC" != "lcc"
then

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@ -850,7 +850,7 @@ opinfo("gl_void_vary",[bind("y","AbsPair(NULL)",workpc=currentop),new("y")]).
opinfo("get_struct",[bind("x","AbsAppl((CELL *)cl->u.xfa.f)",workpc=nextop)]).
opinfo("get_float",[bind("x","AbsAppl((CELL *)FunctorDouble)",t_ptr="d")]).
opinfo("get_longint",[bind("x","AbsAppl((CELL *)FunctorLongInt)",t_ptr="i")]).
opinfo("get_bigint",[bind("x","AbsAppl((CELL *)FunctorBigInt)",t_ptr=[])]).
opinfo("get_bigint",[bind("x","c",[])]).
opinfo("copy_idb_term",[logical]).
opinfo("unify_idb_term",[logical]).
opinfo("put_atom",[new("x")]).

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@ -2284,15 +2284,6 @@ extend(_G,[],[],CompSub,CompSub):-!.
extend(G,Cand,Not,CS,CSOut):-
extend_cycle(G,Cand,Not,CS,CSOut).
intersection([],_Y,[]).
intersection([H|T],Y,[H|Z]):-
member(H,Y),!,
intersection(T,Y,Z).
intersection([_H|T],Y,Z):-
intersection(T,Y,Z).
/* set(Par,Value) can be used to set the value of a parameter */
set(Parameter,Value):-
retract(setting(Parameter,_)),

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@ -283,7 +283,7 @@ get_prob(GL,AV,AVL,CVL,P):-
{G=goal with p([f,t],Table, Parents)},
append(AVL,CVL,Vars),
append(Vars,[G],Vars1),
clpbn:call_solver([G], Vars1),
clpbn:clpbn_run_solver([G], Vars1,_State),
clpbn_display:get_atts(G, [posterior(Vs,Vals,[_P0,P],AllDiffs)]).
lookup_gvars([],_AV,[],S,S).
@ -1166,15 +1166,6 @@ extend(_G,[],[],CompSub,CompSub):-!.
extend(G,Cand,Not,CS,CSOut):-
extend_cycle(G,Cand,Not,CS,CSOut).
intersection([],_Y,[]).
intersection([H|T],Y,[H|Z]):-
member(H,Y),!,
intersection(T,Y,Z).
intersection([_H|T],Y,Z):-
intersection(T,Y,Z).
/* set(Par,Value) can be used to set the value of a parameter */
set(Parameter,Value):-
retract(setting(Parameter,_)),

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@ -1465,15 +1465,6 @@ extend(_G,[],[],CompSub,CompSub):-!.
extend(G,Cand,Not,CS,CSOut):-
extend_cycle(G,Cand,Not,CS,CSOut).
intersection([],_Y,[]).
intersection([H|T],Y,[H|Z]):-
member(H,Y),!,
intersection(T,Y,Z).
intersection([_H|T],Y,Z):-
intersection(T,Y,Z).
/* set(Par,Value) can be used to set the value of a parameter */
set(Parameter,Value):-
retract(setting(Parameter,_)),

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@ -1521,15 +1521,6 @@ extend(_G,[],[],CompSub,CompSub):-!.
extend(G,Cand,Not,CS,CSOut):-
extend_cycle(G,Cand,Not,CS,CSOut).
intersection([],_Y,[]).
intersection([H|T],Y,[H|Z]):-
member(H,Y),!,
intersection(T,Y,Z).
intersection([_H|T],Y,Z):-
intersection(T,Y,Z).
/* set(Par,Value) can be used to set the value of a parameter */
set(Parameter,Value):-
retract(setting(Parameter,_)),

View File

@ -683,15 +683,6 @@ extend(_G,[],[],CompSub,CompSub):-!.
extend(G,Cand,Not,CS,CSOut):-
extend_cycle(G,Cand,Not,CS,CSOut).
intersection([],_Y,[]).
intersection([H|T],Y,[H|Z]):-
member(H,Y),!,
intersection(T,Y,Z).
intersection([_H|T],Y,Z):-
intersection(T,Y,Z).
convert_body((~ A & B),[\+ A|B1]):-!,
convert_body(B,B1).