/************************************************************************* * * * YAP Prolog * * * * Yap Prolog was developed at NCCUP - Universidade do Porto * * * * Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 * * * ************************************************************************** * * * File: stdpreds.c * * Last rev: * * mods: * * comments: General-purpose C implemented system predicates * * * *************************************************************************/ #ifdef SCCS static char SccsId[] = "%W% %G%"; #endif /* * This file includes the definition of a miscellania of standard predicates * for yap refering to: Consulting, Executing a C predicate from call, * Comparisons (both general and numeric), Structure manipulation, Direct * access to atoms and predicates, Basic support for the debugger * * It also includes a table where all C-predicates are initializated * */ #include "Yap.h" #include "Yatom.h" #include "Heap.h" #include "eval.h" #include "yapio.h" #include #if HAVE_STRING_H #include #endif #ifdef LOW_PROF #include #include #include #endif STD_PROTO(static Int p_setval, (void)); STD_PROTO(static Int p_value, (void)); STD_PROTO(static Int p_values, (void)); STD_PROTO(static Int p_flipflop, (void)); STD_PROTO(static Int p_setflop, (void)); #ifdef undefined STD_PROTO(static CODEADDR *FindAtom, (CODEADDR, int *)); #endif /* undefined */ STD_PROTO(static Int p_opdec, (void)); STD_PROTO(static Term get_num, (char *)); STD_PROTO(static Int p_name, (void)); STD_PROTO(static Int p_atom_chars, (void)); STD_PROTO(static Int p_atom_codes, (void)); STD_PROTO(static Int p_atom_length, (void)); STD_PROTO(static Int p_atom_split, (void)); STD_PROTO(static Int p_number_chars, (void)); STD_PROTO(static Int p_number_codes, (void)); STD_PROTO(static Int p_univ, (void)); STD_PROTO(static Int p_abort, (void)); STD_PROTO(static Int p_halt, (void)); STD_PROTO(static Int p_halt0, (void)); STD_PROTO(static Int init_current_atom, (void)); STD_PROTO(static Int cont_current_atom, (void)); STD_PROTO(static Int init_current_predicate, (void)); STD_PROTO(static Int cont_current_predicate, (void)); STD_PROTO(static Int init_current_predicate_for_atom, (void)); STD_PROTO(static Int cont_current_predicate_for_atom, (void)); STD_PROTO(static OpEntry *NextOp, (OpEntry *)); STD_PROTO(static Int init_current_op, (void)); STD_PROTO(static Int cont_current_op, (void)); #ifdef DEBUG STD_PROTO(static Int p_debug, (void)); #endif STD_PROTO(static Int p_flags, (void)); STD_PROTO(static int AlreadyHidden, (char *)); STD_PROTO(static Int p_hide, (void)); STD_PROTO(static Int p_hidden, (void)); STD_PROTO(static Int p_unhide, (void)); STD_PROTO(static Int TrailMax, (void)); STD_PROTO(static Int GlobalMax, (void)); STD_PROTO(static Int LocalMax, (void)); STD_PROTO(static Int p_statistics_heap_max, (void)); STD_PROTO(static Int p_statistics_global_max, (void)); STD_PROTO(static Int p_statistics_local_max, (void)); STD_PROTO(static Int p_statistics_heap_info, (void)); STD_PROTO(static Int p_statistics_stacks_info, (void)); STD_PROTO(static Int p_statistics_trail_info, (void)); STD_PROTO(static Term mk_argc_list, (void)); STD_PROTO(static Int p_argv, (void)); STD_PROTO(static Int p_cputime, (void)); STD_PROTO(static Int p_runtime, (void)); STD_PROTO(static Int p_walltime, (void)); STD_PROTO(static Int p_access_yap_flags, (void)); STD_PROTO(static Int p_set_yap_flags, (void)); #ifdef LOW_PROF STD_PROTO(static Int useprof, (void)); STD_PROTO(static Int useprof0, (void)); STD_PROTO(static Int profres, (void)); STD_PROTO(static Int profres2, (void)); #define TIMER_DEFAULT 1000 typedef struct prof_files { FILE *f_prof, *f_preds; } prof_files_struct; void Yap_inform_profiler_of_clause(yamop *code_start, yamop *code_end, PredEntry *pe) { /* I can only open once, otherwise I'll have heaps of trouble whenever Yap changes directory */ ProfPreds++; if (FPreds != NULL) { fprintf(FPreds,"+%p %p %p %uld\n",code_start,code_end, pe, ProfCalls); } } static void prof_alrm(int signo) { ProfCalls++; fprintf(FProf,"%p\n", P); return; } static Int set_prof_timer(int msec) { static int n=-1; struct itimerval t; if (msec==0 || n>0) { setitimer(ITIMER_PROF,NULL,NULL); n=0; return TRUE; } if (signal(SIGPROF,prof_alrm) == SIG_ERR) { return FALSE; } n=1; t.it_interval.tv_sec=0; t.it_interval.tv_usec=msec; t.it_value.tv_sec=0; t.it_value.tv_usec=msec; setitimer(ITIMER_PROF,&t,NULL); return(TRUE); } static void start_profilers(void) { ProfCalls = 0L; if (FPreds == NULL) { FPreds=fopen("PROFPREDS","w+"); } if (FPreds == NULL) return; Yap_dump_code_area_for_profiler(); if (FProf != NULL) { /* close previous profiling session */ fclose(FProf); } FProf=fopen("PROFILING","w+"); if (FProf==NULL) { return; } ProfilerOn = TRUE; } static Int useprof(void) { Term p; p=Deref(ARG1); start_profilers(); return (set_prof_timer(IntOfTerm(p))); } static Int useprof0(void) { start_profilers(); return(set_prof_timer(TIMER_DEFAULT)); } typedef struct clause_entry { yamop *beg, *end; PredEntry *pp; UInt pcs; UInt ts, tf; /* start end timestamp towards retracts, eventually */ } clauseentry; static int cl_cmp(const void *c1, const void *c2) { const clauseentry *cl1 = (const clauseentry *)c1; const clauseentry *cl2 = (const clauseentry *)c2; if (cl1->beg > cl2->beg) return 1; if (cl1->beg < cl2->beg) return -1; return 0; } static int p_cmp(const void *c1, const void *c2) { const clauseentry *cl1 = (const clauseentry *)c1; const clauseentry *cl2 = (const clauseentry *)c2; if (cl1->pp > cl2->pp) return 1; if (cl1->pp < cl2->pp) return -1; return 0; } static void search_pc_pred(yamop *pc_ptr,clauseentry *beg, clauseentry *end) { /* binary search, dynamic clauses not supported yet */ Int i, j, f, l; f = 0; l = (end-beg); i = l/2; while (TRUE) { if (beg[i].beg > pc_ptr) { l = i-1; if (l < f) { printf("Could not find %p\n", pc_ptr); return; } j = i; i = (f+l)/2; } else if (beg[i].end < pc_ptr) { f = i+1; if (f > l) { printf("Could not find %p\n", pc_ptr); return; } i = (f+l)/2; } else if (beg[i].beg <= pc_ptr && beg[i].end >= pc_ptr) { beg[i].pcs++; return; } else { printf("Could not find %p\n", pc_ptr); return; } } } static int showprofres(int tipo) { clauseentry *pr = (clauseentry *)TR, *t; UInt i = ProfPreds; if (FPreds == NULL || FProf == NULL) return FALSE; (void)fseek(FPreds, 0L, SEEK_SET); while (i) { if (fscanf(FPreds,"+%p %p %p %uld\n",&(pr->beg),&(pr->end),&(pr->pp),&(pr->ts)) == 0){ /* error */ return FALSE; } pr->pcs = 0L; pr++; if (pr > (clauseentry *)Yap_TrailTop - 1024) { Yap_growtrail(64 * 1024L); } i--; } /* so that we can write again */ (void)fseek(FPreds, 0L, SEEK_END); qsort((void *)TR, ProfPreds, sizeof(clauseentry), cl_cmp); (void)fseek(FProf, 0L, SEEK_SET); for (; i < ProfCalls; i++) { yamop *pc_ptr; if (fscanf(FProf,"%p\n",&pc_ptr) == 0){ /* error */ return FALSE; } search_pc_pred(pc_ptr,(clauseentry *)TR,pr); } (void)fseek(FProf, 0L, SEEK_END); qsort((void *)TR, ProfPreds, sizeof(clauseentry), p_cmp); t = (clauseentry *)TR; while (t < pr) { UInt calls = t->pcs; PredEntry *myp = t->pp; t++; while (t->pp == myp) { calls += t->pcs; t++; } if (calls) { if (myp->ArityOfPE) { printf("%s:%s/%d -> %uld\n", RepAtom(AtomOfTerm(myp->ModuleOfPred))->StrOfAE, RepAtom(NameOfFunctor(myp->FunctorOfPred))->StrOfAE, myp->ArityOfPE, calls); } else { printf("%s:%s -> %uld\n", RepAtom(AtomOfTerm(myp->ModuleOfPred))->StrOfAE, RepAtom((Atom)(myp->FunctorOfPred))->StrOfAE, calls); } } } return TRUE; } static Int profres(void) { return showprofres(0); } static Int profres2(void) { return showprofres(1); } #endif /* LOW_PROF */ static Int p_setval(void) { /* '$set_value'(+Atom,+Atomic) */ Term t1 = Deref(ARG1), t2 = Deref(ARG2); if (!IsVarTerm(t1) && IsAtomTerm(t1) && (!IsVarTerm(t2) && (IsAtomTerm(t2) || IsNumTerm(t2)))) { Yap_PutValue(AtomOfTerm(t1), t2); return (TRUE); } return (FALSE); } static Int p_value(void) { /* '$get_value'(+Atom,?Val) */ Term t1 = Deref(ARG1); if (IsVarTerm(t1)) { Yap_Error(INSTANTIATION_ERROR,t1,"get_value/2"); return (FALSE); } if (!IsAtomTerm(t1)) { Yap_Error(TYPE_ERROR_ATOM,t1,"get_value/2"); return (FALSE); } return (Yap_unify_constant(ARG2, Yap_GetValue(AtomOfTerm(t1)))); } static Int p_values(void) { /* '$values'(Atom,Old,New) */ Term t1 = Deref(ARG1), t3 = Deref(ARG3); if (IsVarTerm(t1)) { Yap_Error(INSTANTIATION_ERROR,t1,"set_value/2"); return (FALSE); } if (!IsAtomTerm(t1)) { Yap_Error(TYPE_ERROR_ATOM,t1,"set_value/2"); return (FALSE); } if (!Yap_unify_constant(ARG2, Yap_GetValue(AtomOfTerm(t1)))) return (FALSE); if (!IsVarTerm(t3)) { if (IsAtomTerm(t3) || IsNumTerm(t3)) { Yap_PutValue(AtomOfTerm(t1), t3); } else return (FALSE); } return (TRUE); } static Int p_flipflop(void) { /* '$flipflop' */ return ((int) (FlipFlop = (1 - FlipFlop))); } static Int p_setflop(void) { /* '$setflop'(N) */ Term t = Deref(ARG1); if (IsIntTerm(t)) { FlipFlop = IntOfTerm(t) & 1; return (TRUE); } return (FALSE); } inline static void do_signal(yap_signals sig) { LOCK(SignalLock); CreepFlag = Unsigned(LCL0); ActiveSignals |= sig; UNLOCK(SignalLock); } static Int p_creep(void) { Atom at; PredEntry *pred; at = Yap_FullLookupAtom("$creep"); pred = RepPredProp(PredPropByFunc(Yap_MkFunctor(at, 1),0)); CreepCode = pred; yap_flags[SPY_CREEP_FLAG] = TRUE; do_signal(YAP_CREEP_SIGNAL); FlipFlop = 0; return TRUE; } static Int p_stop_creep(void) { LOCK(SignalLock); CreepFlag = CalculateStackGap(); UNLOCK(SignalLock); return TRUE; } void Yap_signal(yap_signals sig) { do_signal(sig); } #ifdef undefined /* * Returns where some particular piece of code is, it may take its time but * then you only need it while creeping, so why bother ? */ static CODEADDR * FindAtom(codeToFind, arity) CODEADDR codeToFind; unsigned int *arityp; { Atom a; int i; for (i = 0; i < AtomHashTableSize; ++i) { READ_LOCK(HashChain[i].AeRWLock); a = HashChain[i].Entry; READ_UNLOCK(HashChain[i].AeRWLock); while (a != NIL) { register PredEntry *pp; AtomEntry *ae = RepAtom(a); READ_LOCK(ae->ARWLock); pp = RepPredProp(RepAtom(a)->PropsOfAE); while (!EndOfPAEntr(pp) && ((pp->KindOfPE & 0x8000) || (pp->CodeOfPred != codeToFind))) pp = RepPredProp(pp->NextOfPE); if (pp != NIL) { CODEADDR *out; READ_LOCK(pp->PRWLock); out = &(pp->CodeOfPred) *arityp = pp->ArityOfPE; READ_UNLOCK(pp->PRWLock); READ_UNLOCK(ae->ARWLock); return (out); } a = RepAtom(a)->NextOfAE; READ_UNLOCK(ae->ARWLock); } } *arityp = 0; return (0); } /* * This is called when you want to creep a C-predicate or a predicate written * in assembly */ CELL FindWhatCreep(toCreep) CELL toCreep; { unsigned int arity; Atom at; CODEADDR *place; if (toCreep > 64) { /* written in C */ int i; place = FindAtom((CODEADDR) toCreep, &arity); *--ASP = Unsigned(P); *--ASP = N = arity; for (i = 1; i <= arity; ++i) *--ASP = X[i]; /* P = CellPtr(CCREEPCODE); */ return (Unsigned(place)); } } #endif /* undefined */ static Int p_opdec(void) { /* '$opdec'(p,type,atom) */ /* we know the arguments are integer, atom, atom */ Term p = Deref(ARG1), t = Deref(ARG2), at = Deref(ARG3); return (Yap_OpDec((int) IntOfTerm(p), RepAtom(AtomOfTerm(t))->StrOfAE, AtomOfTerm(at))); } #ifdef NO_STRTOD #if HAVE_CTYPE_H #include #endif double strtod(s, pe) char *s, **pe; { double r = atof(s); *pe = s; while (*s == ' ') ++s; if (*s == '+' || *s == '-') ++s; if (!isdigit(*s)) return (r); while (isdigit(*s)) ++s; if (*s == '.') ++s; while (isdigit(*s)) ++s; if (*s == 'e' || *s == 'E') ++s; if (*s == '+' || *s == '-') ++s; while (isdigit(*s)) ++s; *pe = s; return (r); } #else #include #endif static char *cur_char_ptr; static int get_char_from_string(int s) { if (cur_char_ptr[0] == '\0') return(-1); cur_char_ptr++; return((int)(cur_char_ptr[-1])); } static Term get_num(char *t) { Term out; cur_char_ptr = t; out = Yap_scan_num(get_char_from_string); /* not ever iso */ if (out == TermNil && yap_flags[LANGUAGE_MODE_FLAG] != 1) { int sign = 1; if (t[0] == '+') { t++; } if (t[0] == '-') { t++; sign = -1; } if(strcmp(t,"inf") == 0) { Term ta[1]; ta[0] = MkAtomTerm(Yap_LookupAtom("inf")); if (sign > 0) { return(Yap_MkApplTerm(Yap_MkFunctor(AtomPlus, 1), 1, ta)); } return(Yap_MkApplTerm(Yap_MkFunctor(AtomMinus, 1), 1, ta)); } if(strcmp(t,"nan") == 0) { Term ta[1]; ta[0] = MkAtomTerm(Yap_LookupAtom("nan")); if (sign > 0) { return(Yap_MkApplTerm(Yap_MkFunctor(AtomPlus, 1), 1, ta)); } return(Yap_MkApplTerm(Yap_MkFunctor(AtomMinus, 1), 1, ta)); } } if (cur_char_ptr[0] == '\0') return(out); else return(TermNil); } static Int runtime(void) { return(Yap_cputime()-Yap_total_gc_time()-Yap_total_stack_shift_time()); } Int last_gc_time = 0; Int last_ss_time = 0; /* $runtime(-SinceInterval,-SinceStart) */ static Int p_runtime(void) { Int now, interval, gc_time, ss_time; Yap_cputime_interval(&now, &interval); gc_time = Yap_total_gc_time(); ss_time = Yap_total_stack_shift_time(); now -= gc_time+ss_time; interval -= (gc_time-last_gc_time)+(ss_time-last_ss_time); last_gc_time = gc_time; last_ss_time = ss_time; return( Yap_unify_constant(ARG1, MkIntegerTerm(now)) && Yap_unify_constant(ARG2, MkIntegerTerm(interval)) ); } /* $cputime(-SinceInterval,-SinceStart) */ static Int p_cputime(void) { Int now, interval; Yap_cputime_interval(&now, &interval); return( Yap_unify_constant(ARG1, MkIntegerTerm(now)) && Yap_unify_constant(ARG2, MkIntegerTerm(interval)) ); } static Int p_walltime(void) { Int now, interval; Yap_walltime_interval(&now, &interval); return( Yap_unify_constant(ARG1, MkIntegerTerm(now)) && Yap_unify_constant(ARG2, MkIntegerTerm(interval)) ); } static Int p_char_code(void) { Int t0 = Deref(ARG1); if (IsVarTerm(t0)) { Term t1 = Deref(ARG2); if (IsVarTerm(t1)) { Yap_Error(INSTANTIATION_ERROR,t0,"char_code/2"); return(FALSE); } else if (!IsIntegerTerm(t1)) { Yap_Error(TYPE_ERROR_INTEGER,t1,"char_code/2"); return(FALSE); } else { Int code = IntegerOfTerm(t1); char codes[2]; Term tout; if (code < 0 || code > 256) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,t1,"char_code/2"); return(FALSE); } codes[0] = code; codes[1] = '\0'; tout = MkAtomTerm(Yap_LookupAtom(codes)); return(Yap_unify(ARG1,tout)); } } else if (!IsAtomTerm(t0)) { Yap_Error(TYPE_ERROR_CHARACTER,t0,"char_code/2"); return(FALSE); } else { char *c = RepAtom(AtomOfTerm(t0))->StrOfAE; if (c[1] != '\0') { Yap_Error(TYPE_ERROR_CHARACTER,t0,"char_code/2"); return(FALSE); } return(Yap_unify(ARG2,MkIntTerm((Int)(c[0])))); } } static Int p_name(void) { /* name(?Atomic,?String) */ char *String, *s; /* alloc temp space on trail */ Term t, NewT, AtomNameT = Deref(ARG1); ARG2 = Deref(ARG2); if (!IsVarTerm(AtomNameT)) { if (IsAtomTerm(AtomNameT)) { s = RepAtom(AtomOfTerm(AtomNameT))->StrOfAE; NewT = Yap_StringToList(s); if (!IsVarTerm(ARG2) && !IsPairTerm(ARG2)) { Yap_Error(TYPE_ERROR_LIST,ARG2, "name/2"); return(FALSE); } return (Yap_unify(NewT, ARG2)); } else if (IsIntTerm(AtomNameT)) { char *String = Yap_PreAllocCodeSpace(); #if SHORT_INTS sprintf(String, "%ld", IntOfTerm(AtomNameT)); #else sprintf(String, "%d", IntOfTerm(AtomNameT)); #endif NewT = Yap_StringToList(String); if (!IsVarTerm(ARG2) && !IsPairTerm(ARG2)) { Yap_Error(TYPE_ERROR_LIST,ARG2,"name/2"); return(FALSE); } return (Yap_unify(NewT, ARG2)); } else if (IsFloatTerm(AtomNameT)) { char *String = Yap_PreAllocCodeSpace(); sprintf(String, "%f", FloatOfTerm(AtomNameT)); NewT = Yap_StringToList(String); if (!IsVarTerm(ARG2) && !IsPairTerm(ARG2)) { Yap_Error(TYPE_ERROR_LIST,ARG2,"name/2"); return(FALSE); } return (Yap_unify(NewT, ARG2)); } else if (IsLongIntTerm(AtomNameT)) { char *String = Yap_PreAllocCodeSpace(); #if SHORT_INTS sprintf(String, "%ld", LongIntOfTerm(AtomNameT)); #else sprintf(String, "%d", LongIntOfTerm(AtomNameT)); #endif NewT = Yap_StringToList(String); if (!IsVarTerm(ARG2) && !IsPairTerm(ARG2)) { Yap_Error(TYPE_ERROR_LIST,ARG2,"name/2"); return(FALSE); } return (Yap_unify(NewT, ARG2)); } else { Yap_Error(TYPE_ERROR_ATOMIC,AtomNameT,"name/2"); return(FALSE); } } t = ARG2; s = String = ((AtomEntry *)Yap_PreAllocCodeSpace())->StrOfAE; if (!IsVarTerm(t) && t == MkAtomTerm(AtomNil)) { return (Yap_unify_constant(ARG1, MkAtomTerm(Yap_LookupAtom("")))); } while (!IsVarTerm(t) && IsPairTerm(t)) { Term Head; Int i; Head = HeadOfTerm(t); if (IsVarTerm(Head)) { Yap_Error(INSTANTIATION_ERROR,Head,"name/2"); return(FALSE); } if (!IsIntTerm(Head)) { Yap_Error(TYPE_ERROR_INTEGER,Head,"name/2"); return(FALSE); } i = IntOfTerm(Head); if (i < 0 || i > 255) { if (i<0) Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO,Head,"name/2"); return(FALSE); } if (s+1 == (char *)AuxSp) { char *nString; *H++ = t; nString = ((AtomEntry *)Yap_ExpandPreAllocCodeSpace(0))->StrOfAE; t = *--H; s = nString+(s-String); String = nString; } *s++ = i; t = TailOfTerm(t); } *s = '\0'; if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR,t,"name/2"); return(FALSE); } if (IsAtomTerm(t) && AtomOfTerm(t) == AtomNil) { if ((NewT = get_num(String)) == TermNil) { NewT = MkAtomTerm(Yap_LookupAtom(String)); } return (Yap_unify_constant(ARG1, NewT)); } else { Yap_Error(TYPE_ERROR_LIST,t,"name/2"); return(FALSE); } } static Int p_atom_chars(void) { Term t1 = Deref(ARG1); if (!IsVarTerm(t1)) { Term NewT; if (!IsAtomTerm(t1)) { Yap_Error(TYPE_ERROR_ATOM, t1, "atom_chars/2"); return(FALSE); } if (yap_flags[YAP_TO_CHARS_FLAG] == QUINTUS_TO_CHARS) { NewT = Yap_StringToList(RepAtom(AtomOfTerm(t1))->StrOfAE); } else { NewT = Yap_StringToListOfAtoms(RepAtom(AtomOfTerm(t1))->StrOfAE); } return (Yap_unify(NewT, ARG2)); } else { /* ARG1 unbound */ char *String = ((AtomEntry *)Yap_PreAllocCodeSpace())->StrOfAE; /* alloc temp space on trail */ register Term t = Deref(ARG2); register char *s = String; if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR, t1, "atom_chars/2"); return(FALSE); } if (t == TermNil) { return (Yap_unify_constant(t1, MkAtomTerm(Yap_LookupAtom("")))); } if (!IsPairTerm(t)) { Yap_Error(TYPE_ERROR_LIST, t, "atom_chars/2"); return(FALSE); } if (yap_flags[YAP_TO_CHARS_FLAG] == QUINTUS_TO_CHARS) { while (t != TermNil) { register Term Head; register Int i; Head = HeadOfTerm(t); if (IsVarTerm(Head)) { Yap_Error(INSTANTIATION_ERROR,Head,"atom_chars/2"); return(FALSE); } else if (!IsIntTerm(Head)) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,Head,"atom_chars/2"); return(FALSE); } i = IntOfTerm(Head); if (i < 0 || i > 255) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,Head,"atom_chars/2"); return(FALSE); } if (s+1 == (char *)AuxSp) { char *nString; *H++ = t; nString = ((AtomEntry *)Yap_ExpandPreAllocCodeSpace(0))->StrOfAE; t = *--H; s = nString+(s-String); String = nString; } *s++ = i; t = TailOfTerm(t); if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR,t,"atom_chars/2"); return(FALSE); } else if (!IsPairTerm(t) && t != TermNil) { Yap_Error(TYPE_ERROR_LIST, t, "atom_chars/2"); return(FALSE); } } } else { /* ISO Prolog Mode */ while (t != TermNil) { register Term Head; register char *is; Head = HeadOfTerm(t); if (IsVarTerm(Head)) { Yap_Error(INSTANTIATION_ERROR,Head,"atom_chars/2"); return(FALSE); } else if (!IsAtomTerm(Head)) { Yap_Error(TYPE_ERROR_CHARACTER,Head,"atom_chars/2"); return(FALSE); } is = RepAtom(AtomOfTerm(Head))->StrOfAE; if (is[1] != '\0') { Yap_Error(TYPE_ERROR_CHARACTER,Head,"atom_chars/2"); return(FALSE); } if (s+1 == (char *)AuxSp) { char *nString; *H++ = t; nString = ((AtomEntry *)Yap_ExpandPreAllocCodeSpace(0))->StrOfAE; t = *--H; s = nString+(s-String); String = nString; } *s++ = is[0]; t = TailOfTerm(t); if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR,t,"atom_chars/2"); return(FALSE); } else if (!IsPairTerm(t) && t != TermNil) { Yap_Error(TYPE_ERROR_LIST, t, "atom_chars/2"); return(FALSE); } } } *s++ = '\0'; return (Yap_unify_constant(ARG1, MkAtomTerm(Yap_LookupAtom(String)))); } } static Int p_atom_concat(void) { Term t1 = Deref(ARG1); char *cptr = ((AtomEntry *)Yap_PreAllocCodeSpace())->StrOfAE, *cpt0; char *top = (char *)AuxSp; char *atom_str; UInt sz; restart: cpt0 = cptr; /* we need to have a list */ if (IsVarTerm(t1)) { Yap_ReleasePreAllocCodeSpace((ADDR)cpt0); Yap_Error(INSTANTIATION_ERROR, ARG1, "atom_concat/2"); return(FALSE); } while (IsPairTerm(t1)) { Term thead = HeadOfTerm(t1); if (IsVarTerm(thead)) { Yap_ReleasePreAllocCodeSpace((ADDR)cpt0); Yap_Error(INSTANTIATION_ERROR, ARG1, "atom_concat/2"); return(FALSE); } if (!IsAtomTerm(thead)) { Yap_ReleasePreAllocCodeSpace((ADDR)cpt0); Yap_Error(TYPE_ERROR_ATOM, ARG1, "atom_concat/2"); return(FALSE); } atom_str = RepAtom(AtomOfTerm(thead))->StrOfAE; /* check for overflows */ sz = strlen(atom_str); if (cptr+sz >= top-1024) { Yap_ReleasePreAllocCodeSpace((ADDR)cpt0); if (!Yap_growheap(FALSE, sz+1024, NULL)) { Yap_Error(SYSTEM_ERROR, TermNil, Yap_ErrorMessage); return(FALSE); } goto restart; } memcpy((void *)cptr, (void *)atom_str, sz); cptr += sz; t1 = TailOfTerm(t1); if (IsVarTerm(t1)) { Yap_ReleasePreAllocCodeSpace((ADDR)cpt0); Yap_Error(INSTANTIATION_ERROR, ARG1, "atom_concat/2"); return(FALSE); } } if (t1 == TermNil) { Term tout; cptr[0] = '\0'; tout = MkAtomTerm(Yap_LookupAtom(cpt0)); Yap_ReleasePreAllocCodeSpace((ADDR)cpt0); return(Yap_unify(ARG2, tout)); } Yap_ReleasePreAllocCodeSpace((ADDR)cpt0); Yap_Error(TYPE_ERROR_LIST, ARG1, "atom_concat/2"); return(FALSE); } static Int p_atom_codes(void) { Term t1 = Deref(ARG1); if (!IsVarTerm(t1)) { Term NewT; if (!IsAtomTerm(t1)) { Yap_Error(TYPE_ERROR_ATOM, t1, "atom_codes/2"); return(FALSE); } NewT = Yap_StringToList(RepAtom(AtomOfTerm(t1))->StrOfAE); return (Yap_unify(NewT, ARG2)); } else { /* ARG1 unbound */ char *String = ((AtomEntry *)Yap_PreAllocCodeSpace())->StrOfAE; register Term t = Deref(ARG2); register char *s = String; if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR, t1, "atom_codes/2"); return(FALSE); } if (t == TermNil) { return (Yap_unify_constant(t1, MkAtomTerm(Yap_LookupAtom("")))); } if (!IsPairTerm(t)) { Yap_Error(TYPE_ERROR_LIST, t, "atom_codes/2"); return(FALSE); } while (t != TermNil) { register Term Head; register Int i; Head = HeadOfTerm(t); if (IsVarTerm(Head)) { Yap_Error(INSTANTIATION_ERROR,Head,"atom_codes/2"); return(FALSE); } else if (!IsIntTerm(Head)) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,Head,"atom_codes/2"); return(FALSE); } i = IntOfTerm(Head); if (i < 0 || i > 255) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,Head,"atom_codes/2"); return(FALSE); } if (s+1 == (char *)AuxSp) { char *nString; *H++ = t; nString = ((AtomEntry *)Yap_ExpandPreAllocCodeSpace(0))->StrOfAE; t = *--H; s = nString+(s-String); String = nString; } *s++ = i; t = TailOfTerm(t); if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR,t,"atom_codes/2"); return(FALSE); } else if (!IsPairTerm(t) && t != TermNil) { Yap_Error(TYPE_ERROR_LIST, t, "atom_codes/2"); return(FALSE); } } *s++ = '\0'; return (Yap_unify_constant(ARG1, MkAtomTerm(Yap_LookupAtom(String)))); } } static Int p_atom_length(void) { Term t1 = Deref(ARG1); Term t2 = Deref(ARG2); Int len; if (IsVarTerm(t1)) { Yap_Error(INSTANTIATION_ERROR, t1, "atom_length/2"); return(FALSE); } if (!IsAtomTerm(t1)) { Yap_Error(TYPE_ERROR_ATOM, t1, "atom_length/2"); return(FALSE); } if (!IsVarTerm(t2)) { if (!IsIntTerm(t2)) { Yap_Error(TYPE_ERROR_INTEGER, t2, "atom_length/2"); return(FALSE); } if ((len = IntOfTerm(t2)) < 0) { Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, t2, "atom_length/2"); return(FALSE); } return((Int)strlen(RepAtom(AtomOfTerm(t1))->StrOfAE) == len); } else { Term tj = MkIntTerm(strlen(RepAtom(AtomOfTerm(t1))->StrOfAE)); return(Yap_unify_constant(t2,tj)); } } /* split an atom into two sub-atoms */ static Int p_atom_split(void) { Term t1 = Deref(ARG1); Term t2 = Deref(ARG2); Int len; char *s, *s1; int i; Term to1, to2; s1 = (char *)H; if (IsVarTerm(t1)) { Yap_Error(INSTANTIATION_ERROR, t1, "$atom_split/4"); return(FALSE); } if (!IsAtomTerm(t1)) { Yap_Error(TYPE_ERROR_ATOM, t1, "$atom_split/4"); return(FALSE); } if (IsVarTerm(t2)) { Yap_Error(INSTANTIATION_ERROR, t2, "$atom_split/4"); return(FALSE); } if (!IsIntTerm(t2)) { Yap_Error(TYPE_ERROR_INTEGER, t2, "$atom_split/4"); return(FALSE); } if ((len = IntOfTerm(t2)) < 0) { Yap_Error(DOMAIN_ERROR_NOT_LESS_THAN_ZERO, t2, "$atom_split/4"); return(FALSE); } s = RepAtom(AtomOfTerm(t1))->StrOfAE; if (len > (Int)strlen(s)) return(FALSE); for (i = 0; i< len; i++) { if (s1 > (char *)LCL0-1024) Yap_Error(SYSTEM_ERROR,t1,"$atom_split/4"); s1[i] = s[i]; } s1[len] = '\0'; to1 = MkAtomTerm(Yap_LookupAtom(s1)); to2 = MkAtomTerm(Yap_LookupAtom(s+len)); return(Yap_unify_constant(ARG3,to1) && Yap_unify_constant(ARG4,to2)); } static Term gen_syntax_error(char *s) { Term ts[6], ti[2]; ti[0] = ARG1; ti[1] = ARG2; ts[0] = Yap_MkApplTerm(Yap_MkFunctor(Yap_LookupAtom(s),2),2,ti); ts[1] = ts[4] = ts[5] = MkIntTerm(0); ts[2] = MkAtomTerm(Yap_LookupAtom("number syntax")); ts[3] = TermNil; return(Yap_MkApplTerm(Yap_MkFunctor(Yap_LookupAtom("syntax_error"),6),6,ts)); } static Int p_number_chars(void) { char *String; /* alloc temp space on Trail */ register Term t = Deref(ARG2), t1 = Deref(ARG1); Term NewT; register char *s; String = Yap_PreAllocCodeSpace(); if (IsNonVarTerm(t1)) { Term NewT; if (!IsNumTerm(t1)) { Yap_Error(TYPE_ERROR_NUMBER, t1, "number_chars/2"); return(FALSE); } else if (IsIntTerm(t1)) { #if SHORT_INTS sprintf(String, "%ld", IntOfTerm(t1)); #else sprintf(String, "%d", IntOfTerm(t1)); #endif if (yap_flags[YAP_TO_CHARS_FLAG] == QUINTUS_TO_CHARS) { NewT = Yap_StringToList(String); } else { NewT = Yap_StringToListOfAtoms(String); } return (Yap_unify(NewT, ARG2)); } else if (IsFloatTerm(t1)) { sprintf(String, "%f", FloatOfTerm(t1)); if (yap_flags[YAP_TO_CHARS_FLAG] == QUINTUS_TO_CHARS) { NewT = Yap_StringToList(String); } else { NewT = Yap_StringToListOfAtoms(String); } return (Yap_unify(NewT, ARG2)); } else if (IsLongIntTerm(t1)) { #if SHORT_INTS sprintf(String, "%ld", LongIntOfTerm(t1)); #else sprintf(String, "%d", LongIntOfTerm(t1)); #endif if (yap_flags[YAP_TO_CHARS_FLAG] == QUINTUS_TO_CHARS) { NewT = Yap_StringToList(String); } else { NewT = Yap_StringToListOfAtoms(String); } return (Yap_unify(NewT, ARG2)); #if USE_GMP } else if (IsBigIntTerm(t1)) { mpz_get_str(String, 10, Yap_BigIntOfTerm(t1)); if (yap_flags[YAP_TO_CHARS_FLAG] == QUINTUS_TO_CHARS) { NewT = Yap_StringToList(String); } else { NewT = Yap_StringToListOfAtoms(String); } return (Yap_unify(NewT, ARG2)); #endif } } if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR, t1, "number_chars/2"); return(FALSE); } if (!IsPairTerm(t) && t != TermNil) { Yap_Error(TYPE_ERROR_LIST, t, "number_chars/2"); return(FALSE); } s = String; if (yap_flags[YAP_TO_CHARS_FLAG] == QUINTUS_TO_CHARS) { while (t != TermNil) { register Term Head; register Int i; Head = HeadOfTerm(t); if (IsVarTerm(Head)) { Yap_Error(INSTANTIATION_ERROR,Head,"number_chars/2"); return(FALSE); } else if (!IsIntTerm(Head)) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,Head,"number_chars/2"); return(FALSE); } i = IntOfTerm(Head); if (i < 0 || i > 255) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,Head,"number_chars/2"); return(FALSE); } if (s+1 == (char *)AuxSp) { char *nString; *H++ = t; nString = Yap_ExpandPreAllocCodeSpace(0); t = *--H; s = nString+(s-String); String = nString; } *s++ = i; t = TailOfTerm(t); if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR,t,"number_chars/2"); return(FALSE); } else if (!IsPairTerm(t) && t != TermNil) { Yap_Error(TYPE_ERROR_LIST, t, "number_chars/2"); return(FALSE); } } } else { /* ISO code */ while (t != TermNil) { register Term Head; register char *is; Head = HeadOfTerm(t); if (IsVarTerm(Head)) { Yap_Error(INSTANTIATION_ERROR,Head,"number_chars/2"); return(FALSE); } else if (!IsAtomTerm(Head)) { Yap_Error(TYPE_ERROR_CHARACTER,Head,"number_chars/2"); return(FALSE); } is = RepAtom(AtomOfTerm(Head))->StrOfAE; if (is[1] != '\0') { Yap_Error(TYPE_ERROR_CHARACTER,Head,"number_chars/2"); return(FALSE); } if (s+1 == (char *)AuxSp) { char *nString; *H++ = t; nString = Yap_ExpandPreAllocCodeSpace(0); t = *--H; s = nString+(s-String); String = nString; } *s++ = is[0]; t = TailOfTerm(t); if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR,t,"number_chars/2"); return(FALSE); } else if (!IsPairTerm(t) && t != TermNil) { Yap_Error(TYPE_ERROR_LIST, t, "number_chars/2"); return(FALSE); } } } *s++ = '\0'; if ((NewT = get_num(String)) == TermNil) { Yap_Error(SYNTAX_ERROR, gen_syntax_error("number_chars"), "while scanning %s", String); return (FALSE); } return (Yap_unify(ARG1, NewT)); } static Int p_number_atom(void) { char *String; /* alloc temp space on Trail */ register Term t = Deref(ARG2), t1 = Deref(ARG1); Term NewT; register char *s; s = String = ((AtomEntry *)Yap_PreAllocCodeSpace())->StrOfAE; if (IsNonVarTerm(t1)) { if (IsIntTerm(t1)) { Term NewT; #if SHORT_INTS sprintf(String, "%ld", IntOfTerm(t1)); #else sprintf(String, "%d", IntOfTerm(t1)); #endif NewT = MkAtomTerm(Yap_LookupAtom(String)); return (Yap_unify(NewT, ARG2)); } else if (IsFloatTerm(t1)) { Term NewT; sprintf(String, "%f", FloatOfTerm(t1)); NewT = MkAtomTerm(Yap_LookupAtom(String)); return (Yap_unify(NewT, ARG2)); } else if (IsLongIntTerm(t1)) { Term NewT; #if SHORT_INTS sprintf(String, "%ld", LongIntOfTerm(t1)); #else sprintf(String, "%d", LongIntOfTerm(t1)); #endif NewT = MkAtomTerm(Yap_LookupAtom(String)); return (Yap_unify(NewT, ARG2)); #if USE_GMP } else if (IsBigIntTerm(t1)) { Term NewT; mpz_get_str(String, 10, Yap_BigIntOfTerm(t1)); NewT = MkAtomTerm(Yap_LookupAtom(String)); return (Yap_unify(NewT, ARG2)); #endif } else { Yap_Error(TYPE_ERROR_NUMBER, t1, "number_atom/2"); return(FALSE); } } if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR, t, "number_chars/2"); return(FALSE); } if (!IsAtomTerm(t)) { Yap_Error(TYPE_ERROR_LIST, t, "number_atom/2"); return(FALSE); } s = RepAtom(AtomOfTerm(t))->StrOfAE; if ((NewT = get_num(s)) == TermNil) { Yap_Error(SYNTAX_ERROR, gen_syntax_error("number_atom"), "while scanning %s", s); return (FALSE); } return (Yap_unify(ARG1, NewT)); } static Int p_number_codes(void) { char *String; /* alloc temp space on Trail */ register Term t = Deref(ARG2), t1 = Deref(ARG1); Term NewT; register char *s; String = Yap_PreAllocCodeSpace(); if (IsNonVarTerm(t1)) { if (IsIntTerm(t1)) { #if SHORT_INTS sprintf(String, "%ld", IntOfTerm(t1)); #else sprintf(String, "%d", IntOfTerm(t1)); #endif NewT = Yap_StringToList(String); return (Yap_unify(NewT, ARG2)); } else if (IsFloatTerm(t1)) { sprintf(String, "%f", FloatOfTerm(t1)); NewT = Yap_StringToList(String); return (Yap_unify(NewT, ARG2)); } else if (IsLongIntTerm(t1)) { #if SHORT_INTS sprintf(String, "%ld", LongIntOfTerm(t1)); #else sprintf(String, "%d", LongIntOfTerm(t1)); #endif NewT = Yap_StringToList(String); return (Yap_unify(NewT, ARG2)); #if USE_GMP } else if (IsBigIntTerm(t1)) { mpz_get_str(String, 10, Yap_BigIntOfTerm(t1)); NewT = Yap_StringToList(String); return (Yap_unify(NewT, ARG2)); #endif } else { Yap_Error(TYPE_ERROR_NUMBER, t1, "number_codes/2"); return(FALSE); } } if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR, t, "number_codes/2"); } if (!IsPairTerm(t) && t != TermNil) { Yap_Error(TYPE_ERROR_LIST, t, "number_codes/2"); return(FALSE); } s = String; /* alloc temp space on Trail */ while (t != TermNil) { register Term Head; register Int i; Head = HeadOfTerm(t); if (IsVarTerm(Head)) { Yap_Error(INSTANTIATION_ERROR,Head,"number_codes/2"); return(FALSE); } else if (!IsIntTerm(Head)) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,Head,"number_codes/2"); return(FALSE); } i = IntOfTerm(Head); if (i < 0 || i > 255) { Yap_Error(REPRESENTATION_ERROR_CHARACTER_CODE,Head,"number_codes/2"); return(FALSE); } if (s+1 == (char *)AuxSp) { char *nString; *H++ = t; nString = Yap_ExpandPreAllocCodeSpace(0); t = *--H; s = nString+(s-String); String = nString; } *s++ = i; t = TailOfTerm(t); if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR,t,"number_codes/2"); return(FALSE); } else if (!IsPairTerm(t) && t != TermNil) { Yap_Error(TYPE_ERROR_LIST, t, "number_codes/2"); return(FALSE); } } *s++ = '\0'; if ((NewT = get_num(String)) == TermNil) { Yap_Error(SYNTAX_ERROR, gen_syntax_error("number_codes"), "while scanning %s", String); return (FALSE); } return (Yap_unify(ARG1, NewT)); } static Int p_univ(void) { /* A =.. L */ unsigned int arity; register Term tin; Term twork, t2; Atom at; tin = Deref(ARG1); t2 = Deref(ARG2); if (IsVarTerm(tin)) { /* we need to have a list */ Term *Ar; if (IsVarTerm(t2)) { Yap_Error(INSTANTIATION_ERROR, t2, "(=..)/2"); return(FALSE); } if (!IsPairTerm(t2)) { if (t2 == TermNil) Yap_Error(DOMAIN_ERROR_NON_EMPTY_LIST, t2, "(=..)/2"); else Yap_Error(TYPE_ERROR_LIST, ARG2, "(=..)/2"); return (FALSE); } twork = HeadOfTerm(t2); if (IsVarTerm(twork)) { Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2"); return(FALSE); } if (IsNumTerm(twork)) { Term tt = TailOfTerm(t2); if (IsVarTerm(tt) || tt != MkAtomTerm(AtomNil)) { Yap_Error(TYPE_ERROR_ATOM, twork, "(=..)/2"); return (FALSE); } return (Yap_unify_constant(ARG1, twork)); } if (!IsAtomTerm(twork)) { Yap_Error(TYPE_ERROR_ATOM, twork, "(=..)/2"); return (FALSE); } at = AtomOfTerm(twork); twork = TailOfTerm(t2); if (IsVarTerm(twork)) { Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2"); return(FALSE); } else if (!IsPairTerm(twork)) { if (twork != TermNil) { Yap_Error(TYPE_ERROR_LIST, ARG2, "(=..)/2"); return(FALSE); } return (Yap_unify_constant(ARG1, MkAtomTerm(at))); } build_compound: /* build the term directly on the heap */ Ar = H; H++; while (!IsVarTerm(twork) && IsPairTerm(twork)) { *H++ = HeadOfTerm(twork); if (H > ASP - 1024) { /* restore space */ H = Ar; if (!Yap_gc(2, ENV, P)) { Yap_Error(OUT_OF_STACK_ERROR, TermNil, Yap_ErrorMessage); return(FALSE); } twork = TailOfTerm(Deref(ARG2)); goto build_compound; } twork = TailOfTerm(twork); } if (IsVarTerm(twork)) { Yap_Error(INSTANTIATION_ERROR, twork, "(=..)/2"); return(FALSE); } if (twork != TermNil) { Yap_Error(TYPE_ERROR_LIST, ARG2, "(=..)/2"); return (FALSE); } #ifdef SFUNC DOES_NOT_WORK(); { SFEntry *pe = (SFEntry *) Yap_GetAProp(at, SFProperty); if (pe) twork = MkSFTerm(Yap_MkFunctor(at, SFArity), arity, CellPtr(TR), pe->NilValue); else twork = Yap_MkApplTerm(Yap_MkFunctor(at, arity), arity, CellPtr(TR)); } #else arity = H-Ar-1; if (at == AtomDot && arity == 2) { Ar[0] = Ar[1]; Ar[1] = Ar[2]; H --; twork = AbsPair(Ar); } else { *Ar = (CELL)(Yap_MkFunctor(at, arity)); twork = AbsAppl(Ar); } #endif return (Yap_unify(ARG1, twork)); } if (IsAtomicTerm(tin)) { twork = MkPairTerm(tin, MkAtomTerm(AtomNil)); return (Yap_unify(twork, ARG2)); } if (IsRefTerm(tin)) return (FALSE); if (IsApplTerm(tin)) { Functor fun = FunctorOfTerm(tin); arity = ArityOfFunctor(fun); at = NameOfFunctor(fun); #ifdef SFUNC if (arity == SFArity) { CELL *p = CellPtr(TR); CELL *q = ArgsOfSFTerm(tin); int argno = 1; while (*q) { while (*q > argno++) *p++ = MkVarTerm(); ++q; *p++ = Deref(*q++); } twork = Yap_ArrayToList(CellPtr(TR), argno - 1); while (IsIntTerm(twork)) { if (!Yap_gc(2, ENV, P)) { Yap_Error(OUT_OF_STACK_ERROR, TermNil, Yap_ErrorMessage); return(FALSE); } twork = Yap_ArrayToList(CellPtr(TR), argno - 1); } } else #endif { while (H+arity*2 > ASP-1024) { if (!Yap_gc(2, ENV, P)) { Yap_Error(OUT_OF_STACK_ERROR, TermNil, Yap_ErrorMessage); return(FALSE); } tin = Deref(ARG1); } twork = Yap_ArrayToList(RepAppl(tin) + 1, arity); } } else { /* We found a list */ at = AtomDot; twork = Yap_ArrayToList(RepPair(tin), 2); } twork = MkPairTerm(MkAtomTerm(at), twork); return (Yap_unify(ARG2, twork)); } static Int p_abort(void) { /* abort */ /* make sure we won't go creeping around */ Yap_Error(PURE_ABORT, TermNil, ""); return(FALSE); } static Int p_halt(void) { /* halt */ Term t = Deref(ARG1); Int out; if (IsVarTerm(t)) { Yap_Error(INSTANTIATION_ERROR,t,"halt/1"); return(FALSE); } if (!IsIntegerTerm(t)) { Yap_Error(TYPE_ERROR_INTEGER,t,"halt/1"); return(FALSE); } out = IntegerOfTerm(t); if (yap_flags[HALT_AFTER_CONSULT_FLAG]) { Yap_exit(out); } else { fprintf(Yap_stderr, "\n\n[ Prolog execution halted ]\n"); Yap_exit(out); } return (TRUE); } static Int p_halt0(void) { /* halt */ if (yap_flags[HALT_AFTER_CONSULT_FLAG]) { Yap_exit(0); } else { fprintf(Yap_stderr, "\n\n[ Prolog execution halted ]\n"); Yap_exit(0); } return (TRUE); } static Int cont_current_atom(void) { Atom catom; Int i = IntOfTerm(EXTRA_CBACK_ARG(1,2)); AtomEntry *ap; /* nasty hack for gcc on hpux */ /* protect current hash table line */ if (IsAtomTerm(EXTRA_CBACK_ARG(1,1))) catom = AtomOfTerm(EXTRA_CBACK_ARG(1,1)); else catom = NIL; if (catom == NIL){ i++; /* move away from current hash table line */ while (i < AtomHashTableSize) { READ_LOCK(HashChain[i].AERWLock); catom = HashChain[i].Entry; if (catom != NIL) { break; } READ_UNLOCK(HashChain[i].AERWLock); i++; } if (i == AtomHashTableSize) { cut_fail(); } else { READ_UNLOCK(HashChain[i].AERWLock); } } ap = RepAtom(catom); if (Yap_unify_constant(ARG1, MkAtomTerm(catom))) { if (ap->NextOfAE == NIL) { i++; while (i < AtomHashTableSize) { READ_LOCK(HashChain[i].AERWLock); catom = HashChain[i].Entry; READ_UNLOCK(HashChain[i].AERWLock); if (catom != NIL) { break; } i++; } if (i == AtomHashTableSize) { cut_succeed(); } else { EXTRA_CBACK_ARG(1,1) = MkAtomTerm(catom); } } else { READ_LOCK(ap->ARWLock); EXTRA_CBACK_ARG(1,1) = MkAtomTerm(ap->NextOfAE); READ_UNLOCK(ap->ARWLock); } EXTRA_CBACK_ARG(1,2) = MkIntTerm(i); return(TRUE); } else { return(FALSE); } } static Int init_current_atom(void) { /* current_atom(?Atom) */ Term t1 = Deref(ARG1); if (!IsVarTerm(t1)) { if (IsAtomTerm(t1)) cut_succeed(); else cut_fail(); } READ_LOCK(HashChain[0].AERWLock); if (HashChain[0].Entry != NIL) { EXTRA_CBACK_ARG(1,1) = MkAtomTerm(HashChain[0].Entry); } else { EXTRA_CBACK_ARG(1,1) = MkIntTerm(0); } READ_UNLOCK(HashChain[0].AERWLock); EXTRA_CBACK_ARG(1,2) = MkIntTerm(0); return (cont_current_atom()); } static Int cont_current_predicate(void) { PredEntry *pp = (PredEntry *)IntegerOfTerm(EXTRA_CBACK_ARG(3,1)); UInt Arity; Term name; while (pp != NULL) { if (pp->PredFlags & HiddenPredFlag) pp = pp->NextPredOfModule; else break; } if (pp == NULL) cut_fail(); EXTRA_CBACK_ARG(3,1) = (CELL)MkIntegerTerm((Int)(pp->NextPredOfModule)); if (pp->FunctorOfPred == FunctorModule) return(FALSE); if (pp->ModuleOfPred != IDB_MODULE) { Arity = pp->ArityOfPE; if (Arity) name = MkAtomTerm(NameOfFunctor(pp->FunctorOfPred)); else name = MkAtomTerm((Atom)pp->FunctorOfPred); } else { if (pp->PredFlags & NumberDBPredFlag) { name = MkIntegerTerm(pp->src.IndxId); Arity = 0; } else if (pp->PredFlags & AtomDBPredFlag) { name = MkAtomTerm((Atom)pp->FunctorOfPred); Arity = 0; } else { Functor f = pp->FunctorOfPred; name = MkAtomTerm(NameOfFunctor(f)); Arity = ArityOfFunctor(f); } } return (Yap_unify(ARG2,name) && Yap_unify(ARG3, MkIntegerTerm((Int)Arity))); } static Int init_current_predicate(void) { Term t1 = Deref(ARG1); if (IsVarTerm(t1) || !IsAtomTerm(t1)) cut_fail(); EXTRA_CBACK_ARG(3,1) = t1; return (cont_current_predicate()); } static Int cont_current_predicate_for_atom(void) { Prop pf = (Prop)IntegerOfTerm(EXTRA_CBACK_ARG(3,1)); Term mod = Deref(ARG2); while (pf != NIL) { FunctorEntry *pp = RepFunctorProp(pf); if (IsFunctorProperty(pp->KindOfPE)) { Prop p0 = pp->PropsOfFE; while (p0) { PredEntry *p = RepPredProp(p0); if (p->ModuleOfPred == mod || p->ModuleOfPred == 0) { /* we found the predicate */ EXTRA_CBACK_ARG(3,1) = (CELL)MkIntegerTerm((Int)(pp->NextOfPE)); return(Yap_unify(ARG3,Yap_MkNewApplTerm(p->FunctorOfPred,p->ArityOfPE))); } p0 = p->NextOfPE; } } else if (pp->KindOfPE == PEProp) { PredEntry *pe = RepPredProp(pf); if (pe->ModuleOfPred == mod || pe->ModuleOfPred == 0) { /* we found the predicate */ EXTRA_CBACK_ARG(3,1) = (CELL)MkIntegerTerm((Int)(pp->NextOfPE)); return(Yap_unify(ARG3,MkAtomTerm((Atom)(pe->FunctorOfPred)))); } } pf = pp->NextOfPE; } cut_fail(); } static Int init_current_predicate_for_atom(void) { Term t1 = Deref(ARG1); if (IsVarTerm(t1) || !IsAtomTerm(t1)) cut_fail(); EXTRA_CBACK_ARG(3,1) = MkIntegerTerm((Int)RepAtom(AtomOfTerm(t1))->PropsOfAE); return (cont_current_predicate_for_atom()); } static OpEntry * NextOp(OpEntry *pp) { while (!EndOfPAEntr(pp) && pp->KindOfPE != OpProperty) pp = RepOpProp(pp->NextOfPE); return (pp); } static Int cont_current_op(void) { int prio; Atom a = AtomOfTerm(EXTRA_CBACK_ARG(3,1)); Int i = IntOfTerm(EXTRA_CBACK_ARG(3,2)); Int fix = IntOfTerm(EXTRA_CBACK_ARG(3,3)); Term TType; OpEntry *pp = NIL; /* fix hp gcc bug */ AtomEntry *at = RepAtom(a); if (fix > 3) { a = AtomOfTerm(Deref(ARG3)); READ_LOCK(RepAtom(a)->ARWLock); if (EndOfPAEntr(pp = NextOp(RepOpProp(RepAtom(a)->PropsOfAE)))) { READ_UNLOCK(RepAtom(a)->ARWLock); cut_fail(); } READ_LOCK(pp->OpRWLock); READ_UNLOCK(RepAtom(a)->ARWLock); if (fix == 4 && pp->Prefix == 0) fix = 5; if (fix == 5 && pp->Posfix == 0) fix = 6; if (fix == 6 && pp->Infix == 0) cut_fail(); TType = MkAtomTerm(Yap_GetOp(pp, &prio, (int) (fix - 4))); fix++; if (fix == 5 && pp->Posfix == 0) fix = 6; if (fix == 6 && pp->Infix == 0) fix = 7; READ_UNLOCK(pp->OpRWLock); EXTRA_CBACK_ARG(3,3) = (CELL) MkIntTerm(fix); if (fix < 7) return (Yap_unify_constant(ARG1, MkIntTerm(prio)) && Yap_unify_constant(ARG2, TType)); if (Yap_unify_constant(ARG1, MkIntTerm(prio)) && Yap_unify_constant(ARG2, TType)) cut_succeed(); else cut_fail(); } if (fix == 3) { do { if ((a = at->NextOfAE) == NIL) { i++; while (TRUE) { READ_LOCK(HashChain[i].AERWLock); a = HashChain[i].Entry; READ_UNLOCK(HashChain[i].AERWLock); if (a != NIL) { break; } i++; } if (i == AtomHashTableSize) cut_fail(); EXTRA_CBACK_ARG(3,2) = (CELL) MkIntTerm(i); } at = RepAtom(a); READ_LOCK(at->ARWLock); pp = NextOp(RepOpProp(at->PropsOfAE)); READ_UNLOCK(at->ARWLock); } while (EndOfPAEntr(pp)); fix = 0; EXTRA_CBACK_ARG(3,1) = (CELL) MkAtomTerm(a); } else { pp = NextOp(RepOpProp(at->PropsOfAE)); } READ_LOCK(pp->OpRWLock); if (fix == 0 && pp->Prefix == 0) fix = 1; if (fix == 1 && pp->Posfix == 0) fix = 2; TType = MkAtomTerm(Yap_GetOp(pp, &prio, (int) fix)); fix++; if (fix == 1 && pp->Posfix == 0) fix = 2; if (fix == 2 && pp->Infix == 0) fix = 3; READ_UNLOCK(pp->OpRWLock); EXTRA_CBACK_ARG(3,3) = (CELL) MkIntTerm(fix); return (Yap_unify_constant(ARG1, MkIntTerm(prio)) && Yap_unify_constant(ARG2, TType) && Yap_unify_constant(ARG3, MkAtomTerm(a))); } static Int init_current_op(void) { /* current_op(-Precedence,-Type,-Atom) */ Int i = 0; Atom a; Term tprio = Deref(ARG1); Term topsec = Deref(ARG2); Term top = Deref(ARG3); if (!IsVarTerm(tprio)) { Int prio; if (!IsIntTerm(tprio)) { Yap_Error(DOMAIN_ERROR_OPERATOR_PRIORITY,tprio,"current_op/3"); return(FALSE); } prio = IntOfTerm(tprio); if (prio < 1 || prio > 1200) { Yap_Error(DOMAIN_ERROR_OPERATOR_PRIORITY,tprio,"current_op/3"); return(FALSE); } } if (!IsVarTerm(topsec)) { char *opsec; if (!IsAtomTerm(topsec)) { Yap_Error(DOMAIN_ERROR_OPERATOR_SPECIFIER,topsec,"current_op/3"); return(FALSE); } opsec = RepAtom(AtomOfTerm(topsec))->StrOfAE; if (!Yap_IsOpType(opsec)) { Yap_Error(DOMAIN_ERROR_OPERATOR_SPECIFIER,topsec,"current_op/3"); return(FALSE); } } if (!IsVarTerm(top)) { if (!IsAtomTerm(top)) { Yap_Error(TYPE_ERROR_ATOM,top,"current_op/3"); return(FALSE); } } while (TRUE) { READ_LOCK(HashChain[i].AERWLock); a = HashChain[i].Entry; READ_UNLOCK(HashChain[i].AERWLock); if (a != NIL) { break; } i++; } EXTRA_CBACK_ARG(3,1) = (CELL) MkAtomTerm(a); EXTRA_CBACK_ARG(3,2) = (CELL) MkIntTerm(i); if (IsVarTerm(top)) EXTRA_CBACK_ARG(3,3) = (CELL) MkIntTerm(3); else if (IsAtomTerm(top)) EXTRA_CBACK_ARG(3,3) = (CELL) MkIntTerm(4); else cut_fail(); return (cont_current_op()); } #ifdef DEBUG static Int p_debug() { /* $debug(+Flag) */ int i = IntOfTerm(Deref(ARG1)); if (i >= 'a' && i <= 'z') Yap_Option[i - 96] = !Yap_Option[i - 96]; return (1); } #endif static Int p_flags(void) { /* $flags(+Functor,+Mod,?OldFlags,?NewFlags) */ PredEntry *pe; Int newFl; Term t1 = Deref(ARG1); Term mod = Deref(ARG2); if (IsVarTerm(mod) || !IsAtomTerm(mod)) { return(FALSE); } if (IsVarTerm(t1)) return (FALSE); if (IsAtomTerm(t1)) { pe = RepPredProp(PredPropByAtom(AtomOfTerm(t1), mod)); } else if (IsApplTerm(t1)) { Functor funt = FunctorOfTerm(t1); pe = RepPredProp(PredPropByFunc(funt, mod)); } else return (FALSE); if (EndOfPAEntr(pe)) return (FALSE); READ_LOCK(pe->PRWLock); if (!Yap_unify_constant(ARG3, MkIntegerTerm(pe->PredFlags))) { READ_UNLOCK(pe->PRWLock); return(FALSE); } ARG4 = Deref(ARG4); if (IsVarTerm(ARG4)) { READ_UNLOCK(pe->PRWLock); return (TRUE); } else if (!IsIntegerTerm(ARG4)) { union arith_ret v; if (Yap_Eval(ARG4, &v) == long_int_e) { newFl = v.Int; } else { READ_UNLOCK(pe->PRWLock); Yap_Error(TYPE_ERROR_INTEGER, ARG4, "flags"); return(FALSE); } } else newFl = IntegerOfTerm(ARG4); pe->PredFlags = (CELL)newFl; READ_UNLOCK(pe->PRWLock); return (TRUE); } static int AlreadyHidden(char *name) { AtomEntry *chain; READ_LOCK(INVISIBLECHAIN.AERWLock); chain = RepAtom(INVISIBLECHAIN.Entry); READ_UNLOCK(INVISIBLECHAIN.AERWLock); while (!EndOfPAEntr(chain) && strcmp(chain->StrOfAE, name) != 0) chain = RepAtom(chain->NextOfAE); if (EndOfPAEntr(chain)) return (FALSE); return (TRUE); } static Int p_hide(void) { /* hide(+Atom) */ Atom atomToInclude; Term t1 = Deref(ARG1); if (IsVarTerm(t1)) { Yap_Error(INSTANTIATION_ERROR,t1,"hide/1"); return(FALSE); } if (!IsAtomTerm(t1)) { Yap_Error(TYPE_ERROR_ATOM,t1,"hide/1"); return(FALSE); } atomToInclude = AtomOfTerm(t1); if (AlreadyHidden(RepAtom(atomToInclude)->StrOfAE)) { Yap_Error(SYSTEM_ERROR,t1,"an atom of name %s was already hidden", RepAtom(atomToInclude)->StrOfAE); return(FALSE); } Yap_ReleaseAtom(atomToInclude); WRITE_LOCK(INVISIBLECHAIN.AERWLock); WRITE_LOCK(RepAtom(atomToInclude)->ARWLock); RepAtom(atomToInclude)->NextOfAE = INVISIBLECHAIN.Entry; WRITE_UNLOCK(RepAtom(atomToInclude)->ARWLock); INVISIBLECHAIN.Entry = atomToInclude; WRITE_UNLOCK(INVISIBLECHAIN.AERWLock); return (TRUE); } static Int p_hidden(void) { /* '$hidden'(+F) */ Atom at; AtomEntry *chain; Term t1 = Deref(ARG1); if (IsVarTerm(t1)) return (FALSE); if (IsAtomTerm(t1)) at = AtomOfTerm(t1); else if (IsApplTerm(t1)) at = NameOfFunctor(FunctorOfTerm(t1)); else return (FALSE); READ_LOCK(INVISIBLECHAIN.AERWLock); chain = RepAtom(INVISIBLECHAIN.Entry); while (!EndOfPAEntr(chain) && AbsAtom(chain) != at) chain = RepAtom(chain->NextOfAE); READ_UNLOCK(INVISIBLECHAIN.AERWLock); if (EndOfPAEntr(chain)) return (FALSE); return (TRUE); } static Int p_unhide(void) { /* unhide(+Atom) */ AtomEntry *atom, *old, *chain; Term t1 = Deref(ARG1); if (IsVarTerm(t1)) { Yap_Error(INSTANTIATION_ERROR,t1,"unhide/1"); return(FALSE); } if (!IsAtomTerm(t1)) { Yap_Error(TYPE_ERROR_ATOM,t1,"unhide/1"); return(FALSE); } atom = RepAtom(AtomOfTerm(t1)); WRITE_LOCK(atom->ARWLock); if (atom->PropsOfAE != NIL) { Yap_Error(SYSTEM_ERROR,t1,"cannot unhide an atom in use"); return(FALSE); } WRITE_LOCK(INVISIBLECHAIN.AERWLock); chain = RepAtom(INVISIBLECHAIN.Entry); old = NIL; while (!EndOfPAEntr(chain) && strcmp(chain->StrOfAE, atom->StrOfAE) != 0) { old = chain; chain = RepAtom(chain->NextOfAE); } if (EndOfPAEntr(chain)) return (FALSE); atom->PropsOfAE = chain->PropsOfAE; if (old == NIL) INVISIBLECHAIN.Entry = chain->NextOfAE; else old->NextOfAE = chain->NextOfAE; WRITE_UNLOCK(INVISIBLECHAIN.AERWLock); WRITE_UNLOCK(atom->ARWLock); return (TRUE); } void Yap_show_statistics(void) { unsigned long int heap_space_taken = (unsigned long int)(Unsigned(HeapTop)-Unsigned(Yap_HeapBase)); double frag = (100.0*(heap_space_taken-HeapUsed))/heap_space_taken; fprintf(Yap_stderr, "Code Space: %ld (%ld bytes needed, %ld bytes used, fragmentation %.3f%%).\n", (unsigned long int)(Unsigned (H0) - Unsigned (Yap_HeapBase)), (unsigned long int)(Unsigned(HeapTop)-Unsigned(Yap_HeapBase)), (unsigned long int)(HeapUsed), frag); fprintf(Yap_stderr, "Stack Space: %ld (%ld for Global, %ld for local).\n", (unsigned long int)(sizeof(CELL)*(LCL0-H0)), (unsigned long int)(sizeof(CELL)*(H-H0)), (unsigned long int)(sizeof(CELL)*(LCL0-ASP))); fprintf(Yap_stderr, "Trail Space: %ld (%ld used).\n", (unsigned long int)(sizeof(tr_fr_ptr)*(Unsigned(Yap_TrailTop)-Unsigned(Yap_TrailBase))), (unsigned long int)(sizeof(tr_fr_ptr)*(Unsigned(TR)-Unsigned(Yap_TrailBase)))); fprintf(Yap_stderr, "Runtime: %lds.\n", (unsigned long int)(runtime ())); fprintf(Yap_stderr, "Cputime: %lds.\n", (unsigned long int)(Yap_cputime ())); fprintf(Yap_stderr, "Walltime: %lds.\n", (unsigned long int)(Yap_walltime ())); } static Int p_statistics_heap_max(void) { Term tmax = MkIntegerTerm(HeapMax); return(Yap_unify(tmax, ARG1)); } /* The results of the next routines are not to be trusted too */ /* much. Basically, any stack shifting will seriously confuse the */ /* results */ static Int TrailTide = -1, LocalTide = -1, GlobalTide = -1; /* maximum Trail usage */ static Int TrailMax(void) { Int i; Int TrWidth = Unsigned(Yap_TrailTop) - Unsigned(Yap_TrailBase); CELL *pt; if (TrailTide != TrWidth) { pt = (CELL *)TR; while (pt+2 < (CELL *)Yap_TrailTop) { if (pt[0] == 0 && pt[1] == 0 && pt[2] == 0) break; else pt++; } if (pt+2 < (CELL *)Yap_TrailTop) i = Unsigned(pt) - Unsigned(Yap_TrailBase); else i = TrWidth; } else return(TrWidth); if (TrailTide > i) i = TrailTide; else TrailTide = i; return(i); } static Int p_statistics_trail_max(void) { Term tmax = MkIntegerTerm(TrailMax()); return(Yap_unify(tmax, ARG1)); } /* maximum Global usage */ static Int GlobalMax(void) { Int i; Int StkWidth = Unsigned(LCL0) - Unsigned(H0); CELL *pt; if (GlobalTide != StkWidth) { pt = H; while (pt+2 < ASP) { if (pt[0] == 0 && pt[1] == 0 && pt[2] == 0) break; else pt++; } if (pt+2 < ASP) i = Unsigned(pt) - Unsigned(H0); else /* so that both Local and Global have reached maximum width */ GlobalTide = LocalTide = i = StkWidth; } else return(StkWidth); if (GlobalTide > i) i = GlobalTide; else GlobalTide = i; return(i); } static Int p_statistics_global_max(void) { Term tmax = MkIntegerTerm(GlobalMax()); return(Yap_unify(tmax, ARG1)); } static Int LocalMax(void) { Int i; Int StkWidth = Unsigned(LCL0) - Unsigned(H0); CELL *pt; if (LocalTide != StkWidth) { pt = LCL0; while (pt-3 > H) { if (pt[-1] == 0 && pt[-2] == 0 && pt[-3] == 0) break; else --pt; } if (pt-3 > H) i = Unsigned(LCL0) - Unsigned(pt); else /* so that both Local and Global have reached maximum width */ GlobalTide = LocalTide = i = StkWidth; } else return(StkWidth); if (LocalTide > i) i = LocalTide; else LocalTide = i; return(i); } static Int p_statistics_local_max(void) { Term tmax = MkIntegerTerm(LocalMax()); return(Yap_unify(tmax, ARG1)); } static Int p_statistics_heap_info(void) { Term tmax = MkIntegerTerm(Unsigned(H0) - Unsigned(Yap_HeapBase)); Term tusage = MkIntegerTerm(HeapUsed); return(Yap_unify(tmax, ARG1) && Yap_unify(tusage,ARG2)); } static Int p_statistics_stacks_info(void) { Term tmax = MkIntegerTerm(Unsigned(LCL0) - Unsigned(H0)); Term tgusage = MkIntegerTerm(Unsigned(H) - Unsigned(H0)); Term tlusage = MkIntegerTerm(Unsigned(LCL0) - Unsigned(ASP)); return(Yap_unify(tmax, ARG1) && Yap_unify(tgusage,ARG2) && Yap_unify(tlusage,ARG3)); } static Int p_statistics_trail_info(void) { Term tmax = MkIntegerTerm(Unsigned(Yap_TrailTop) - Unsigned(Yap_TrailBase)); Term tusage = MkIntegerTerm(Unsigned(TR) - Unsigned(Yap_TrailBase)); return(Yap_unify(tmax, ARG1) && Yap_unify(tusage,ARG2)); } static Term mk_argc_list(void) { int i =0; Term t = TermNil; while (i < Yap_argc) { char *arg = Yap_argv[i]; /* check for -L -- */ if (arg[0] == '-' && arg[1] == 'L') { arg += 2; while (*arg != '\0' && (*arg == ' ' || *arg == '\t')) arg++; if (*arg == '-' && arg[1] == '-' && arg[2] == '\0') { /* we found the separator */ int j; for (j = Yap_argc-1; j > i+1; --j) { t = MkPairTerm(MkAtomTerm(Yap_LookupAtom(Yap_argv[j])),t); } return(t); } } if (arg[0] == '-' && arg[1] == '-' && arg[2] == '\0') { /* we found the separator */ int j; for (j = Yap_argc-1; j > i; --j) { t = MkPairTerm(MkAtomTerm(Yap_LookupAtom(Yap_argv[j])),t); } return(t); } i++; } return(t); } static Int p_argv(void) { Term t = mk_argc_list(); return(Yap_unify(t, ARG1)); } static Int p_access_yap_flags(void) { Term tflag = Deref(ARG1); Int flag; Term tout; if (IsVarTerm(tflag)) { Yap_Error(INSTANTIATION_ERROR, tflag, "access_yap_flags/2"); return(FALSE); } if (!IsIntTerm(tflag)) { Yap_Error(TYPE_ERROR_INTEGER, tflag, "access_yap_flags/2"); return(FALSE); } flag = IntOfTerm(tflag); if (flag < 0 || flag > NUMBER_OF_YAP_FLAGS) { return(FALSE); } tout = MkIntegerTerm(yap_flags[flag]); return(Yap_unify(ARG2, tout)); } static Int p_host_type(void) { return(Yap_unify(ARG1,MkAtomTerm(Yap_LookupAtom(HOST_ALIAS)))); } static Int p_has_yap_or(void) { #ifdef YAPOR return(TRUE); #else return(FALSE); #endif } static Int p_set_yap_flags(void) { Term tflag = Deref(ARG1); Term tvalue = Deref(ARG2); Int flag, value; if (IsVarTerm(tflag)) { Yap_Error(INSTANTIATION_ERROR, tflag, "set_yap_flags/2"); return(FALSE); } if (!IsIntTerm(tflag)) { Yap_Error(TYPE_ERROR_INTEGER, tflag, "set_yap_flags/2"); return(FALSE); } flag = IntOfTerm(tflag); if (IsVarTerm(tvalue)) { Yap_Error(INSTANTIATION_ERROR, tvalue, "set_yap_flags/2"); return(FALSE); } if (!IsIntTerm(tvalue)) { Yap_Error(TYPE_ERROR_INTEGER, tvalue, "set_yap_flags/2"); return(FALSE); } value = IntOfTerm(tvalue); /* checking should have been performed */ switch(flag) { case CHAR_CONVERSION_FLAG: if (value != 0 && value != 1) return(FALSE); yap_flags[CHAR_CONVERSION_FLAG] = value; break; case YAP_DOUBLE_QUOTES_FLAG: if (value < 0 || value > 2) return(FALSE); yap_flags[YAP_DOUBLE_QUOTES_FLAG] = value; break; case YAP_TO_CHARS_FLAG: if (value != 0 && value != 1) return(FALSE); yap_flags[YAP_TO_CHARS_FLAG] = value; break; case LANGUAGE_MODE_FLAG: if (value < 0 || value > 2) return(FALSE); if (value == 1) { heap_regs->pred_meta_call = RepPredProp(PredPropByFunc(Yap_MkFunctor(AtomMetaCall,4),0)); } else { heap_regs->pred_meta_call = RepPredProp(PredPropByFunc(Yap_MkFunctor(AtomMetaCall,4),0)); } yap_flags[LANGUAGE_MODE_FLAG] = value; break; case STRICT_ISO_FLAG: if (value != 0 && value != 1) return(FALSE); yap_flags[STRICT_ISO_FLAG] = value; break; case SPY_CREEP_FLAG: if (value != 0 && value != 1) return(FALSE); yap_flags[SPY_CREEP_FLAG] = value; break; case SOURCE_MODE_FLAG: if (value != 0 && value != 1) return(FALSE); yap_flags[SOURCE_MODE_FLAG] = value; break; case CHARACTER_ESCAPE_FLAG: if (value != ISO_CHARACTER_ESCAPES && value != CPROLOG_CHARACTER_ESCAPES && value != SICSTUS_CHARACTER_ESCAPES) return(FALSE); yap_flags[CHARACTER_ESCAPE_FLAG] = value; break; case WRITE_QUOTED_STRING_FLAG: if (value != 0 && value != 1) return(FALSE); yap_flags[WRITE_QUOTED_STRING_FLAG] = value; break; case ALLOW_ASSERTING_STATIC_FLAG: if (value != 0 && value != 1) return(FALSE); yap_flags[ALLOW_ASSERTING_STATIC_FLAG] = value; break; case STACK_DUMP_ON_ERROR_FLAG: if (value != 0 && value != 1) return(FALSE); yap_flags[STACK_DUMP_ON_ERROR_FLAG] = value; break; case INDEXING_MODE_FLAG: if (value < INDEX_MODE_OFF || value > INDEX_MODE_MAX) return(FALSE); yap_flags[INDEXING_MODE_FLAG] = value; break; default: return(FALSE); } return(TRUE); } static Int p_lock_system(void) { LOCK(BGL); return TRUE; } static Int p_unlock_system(void) { UNLOCK(BGL); return TRUE; } #ifndef YAPOR static Int p_default_sequential(void) { return(TRUE); } #endif #ifdef DEBUG extern void DumpActiveGoals(void); static Int p_dump_active_goals(void) { DumpActiveGoals(); return(TRUE); } #endif #ifdef INES static Int p_euc_dist(void) { Term t1 = Deref(ARG1); Term t2 = Deref(ARG2); double d1 = (double)(IntegerOfTerm(ArgOfTerm(1,t1))-IntegerOfTerm(ArgOfTerm(1,t2))); double d2 = (double)(IntegerOfTerm(ArgOfTerm(2,t1))-IntegerOfTerm(ArgOfTerm(2,t2))); double d3 = (double)(IntegerOfTerm(ArgOfTerm(3,t1))-IntegerOfTerm(ArgOfTerm(3,t2))); Int result = (Int)sqrt(d1*d1+d2*d2+d3*d3); return(Yap_unify(ARG3,MkIntegerTerm(result))); } volatile int loop_counter = 0; static Int p_loop(void) { while (loop_counter == 0); return(TRUE); } #endif void Yap_InitBackCPreds(void) { Yap_InitCPredBack("$current_atom", 1, 2, init_current_atom, cont_current_atom, SafePredFlag|SyncPredFlag); Yap_InitCPredBack("$current_predicate", 3, 1, init_current_predicate, cont_current_predicate, SafePredFlag|SyncPredFlag); Yap_InitCPredBack("$current_predicate_for_atom", 3, 1, init_current_predicate_for_atom, cont_current_predicate_for_atom, SafePredFlag|SyncPredFlag); Yap_InitCPredBack("current_op", 3, 3, init_current_op, cont_current_op, SafePredFlag|SyncPredFlag); Yap_InitBackIO(); Yap_InitBackDB(); Yap_InitUserBacks(); } typedef void (*Proc)(void); Proc E_Modules[]= {/* init_fc,*/ (Proc) 0 }; void Yap_InitCPreds(void) { /* numerical comparison */ Yap_InitCPred("set_value", 2, p_setval, SafePredFlag|SyncPredFlag); Yap_InitCPred("get_value", 2, p_value, TestPredFlag|SafePredFlag|SyncPredFlag); Yap_InitCPred("$values", 3, p_values, SafePredFlag|SyncPredFlag); /* The flip-flop */ Yap_InitCPred("$flipflop", 0, p_flipflop, SafePredFlag|SyncPredFlag); Yap_InitCPred("$setflop", 1, p_setflop, SafePredFlag|SyncPredFlag); /* general purpose */ Yap_InitCPred("$opdec", 3, p_opdec, SafePredFlag|SyncPredFlag); Yap_InitCPred("name", 2, p_name, SafePredFlag); Yap_InitCPred("char_code", 2, p_char_code, SafePredFlag); Yap_InitCPred("atom_chars", 2, p_atom_chars, SafePredFlag); Yap_InitCPred("atom_codes", 2, p_atom_codes, SafePredFlag); Yap_InitCPred("atom_length", 2, p_atom_length, SafePredFlag); Yap_InitCPred("$atom_split", 4, p_atom_split, SafePredFlag); Yap_InitCPred("number_chars", 2, p_number_chars, SafePredFlag); Yap_InitCPred("number_atom", 2, p_number_atom, SafePredFlag); Yap_InitCPred("number_codes", 2, p_number_codes, SafePredFlag); Yap_InitCPred("atom_concat", 2, p_atom_concat, SafePredFlag); Yap_InitCPred("=..", 2, p_univ, 0); Yap_InitCPred("$statistics_trail_max", 1, p_statistics_trail_max, SafePredFlag|SyncPredFlag); Yap_InitCPred("$statistics_heap_max", 1, p_statistics_heap_max, SafePredFlag|SyncPredFlag); Yap_InitCPred("$statistics_global_max", 1, p_statistics_global_max, SafePredFlag|SyncPredFlag); Yap_InitCPred("$statistics_local_max", 1, p_statistics_local_max, SafePredFlag|SyncPredFlag); Yap_InitCPred("$statistics_heap_info", 2, p_statistics_heap_info, SafePredFlag|SyncPredFlag); Yap_InitCPred("$statistics_stacks_info", 3, p_statistics_stacks_info, SafePredFlag|SyncPredFlag); Yap_InitCPred("$statistics_trail_info", 2, p_statistics_trail_info, SafePredFlag|SyncPredFlag); Yap_InitCPred("$argv", 1, p_argv, SafePredFlag); Yap_InitCPred("$runtime", 2, p_runtime, SafePredFlag|SyncPredFlag); Yap_InitCPred("$cputime", 2, p_cputime, SafePredFlag|SyncPredFlag); Yap_InitCPred("$walltime", 2, p_walltime, SafePredFlag|SyncPredFlag); Yap_InitCPred("$access_yap_flags", 2, p_access_yap_flags, SafePredFlag); Yap_InitCPred("$set_yap_flags", 2, p_set_yap_flags, SafePredFlag|SyncPredFlag); Yap_InitCPred("abort", 0, p_abort, SyncPredFlag); Yap_InitCPred("halt", 1, p_halt, SyncPredFlag); Yap_InitCPred("halt", 0, p_halt0, SyncPredFlag); Yap_InitCPred("$host_type", 1, p_host_type, SyncPredFlag); Yap_InitCPred("$lock_system", 0, p_lock_system, SafePredFlag); Yap_InitCPred("$unlock_system", 0, p_unlock_system, SafePredFlag); /* basic predicates for the prolog machine tracer */ /* they are defined in analyst.c */ /* Basic predicates for the debugger */ Yap_InitCPred("$creep", 0, p_creep, SafePredFlag|SyncPredFlag); Yap_InitCPred("$stop_creep", 0, p_stop_creep, SafePredFlag|SyncPredFlag); #ifdef DEBUG Yap_InitCPred("$debug", 1, p_debug, SafePredFlag|SyncPredFlag); #endif /* Accessing and changing the flags for a predicate */ Yap_InitCPred("$flags", 4, p_flags, SafePredFlag|SyncPredFlag); /* hiding and unhiding some predicates */ Yap_InitCPred("hide", 1, p_hide, SafePredFlag|SyncPredFlag); Yap_InitCPred("unhide", 1, p_unhide, SafePredFlag|SyncPredFlag); Yap_InitCPred("$hidden", 1, p_hidden, SafePredFlag|SyncPredFlag); Yap_InitCPred("$has_yap_or", 0, p_has_yap_or, SafePredFlag|SyncPredFlag); #ifdef LOW_PROF Yap_InitCPred("useprof", 1, useprof, SafePredFlag); Yap_InitCPred("useprof", 0, useprof0, SafePredFlag); Yap_InitCPred("profres", 0, profres, SafePredFlag); Yap_InitCPred("profres2", 0, profres2, SafePredFlag); #endif #ifndef YAPOR Yap_InitCPred("$default_sequential", 1, p_default_sequential, SafePredFlag|SyncPredFlag); #endif #ifdef INES Yap_InitCPred("euc_dist", 3, p_euc_dist, SafePredFlag); Yap_InitCPred("loop", 0, p_loop, SafePredFlag); #endif #ifdef DEBUG Yap_InitCPred("dump_active_goals", 0, p_dump_active_goals, SafePredFlag|SyncPredFlag); #endif Yap_InitUnify(); Yap_InitInlines(); Yap_InitCdMgr(); Yap_InitExecFs(); Yap_InitIOPreds(); Yap_InitCmpPreds(); Yap_InitDBPreds(); Yap_InitBBPreds(); Yap_InitBigNums(); Yap_InitSysPreds(); Yap_InitSavePreds(); Yap_InitCoroutPreds(); Yap_InitArrayPreds(); Yap_InitLoadForeign(); Yap_InitModulesC(); Yap_InitUserCPreds(); Yap_InitUtilCPreds(); Yap_InitSortPreds(); Yap_InitMaVarCPreds(); #ifdef DEPTH_LIMIT Yap_InitItDeepenPreds(); #endif #ifdef ANALYST Yap_InitAnalystPreds(); #endif #ifdef LOW_LEVEL_TRACER Yap_InitLowLevelTrace(); #endif Yap_InitEval(); Yap_InitGrowPreds(); #if defined(YAPOR) || defined(TABLING) Yap_init_optyap_preds(); #endif /* YAPOR || TABLING */ #ifdef THREADS Yap_InitThreadPreds(); #endif /* ANALYST */ { void (*(*(p))) (void) = E_Modules; while (*p) (*(*p++)) (); } #if CAMACHO { extern void InitForeignPreds(void); Yap_InitForeignPreds(); } #endif #if APRIL { extern void init_ol(void), init_time(void); init_ol(); init_time(); } #endif }