static Int
p_create_thread( USES_REGS1 )
{
UInt ssize;
UInt tsize;
UInt sysize;
Term x2 = Deref(ARG2);
Term x3 = Deref(ARG3);
Term x4 = Deref(ARG4);
int new_worker_id = IntegerOfTerm(Deref(ARG7)),
owid = worker_id;
// fprintf(stderr," %d --> %d\n", worker_id, new_worker_id);
if (IsBigIntTerm(x2))
return FALSE;
if (IsBigIntTerm(x3))
return FALSE;
ssize = IntegerOfTerm(x2);
tsize = IntegerOfTerm(x3);
sysize = IntegerOfTerm(x4);
/* UInt systemsize = IntegerOfTerm(Deref(ARG4)); */
if (new_worker_id == -1) {
/* YAP ERROR */
return FALSE;
}
/* make sure we can proceed */
if (!init_thread_engine(new_worker_id, ssize, tsize, sysize, &ARG1, &ARG5, &ARG6))
return FALSE;
//REMOTE_ThreadHandle(new_worker_id).pthread_handle = 0L;
REMOTE_ThreadHandle(new_worker_id).id = new_worker_id;
REMOTE_ThreadHandle(new_worker_id).ref_count = 1;
setup_engine(new_worker_id, FALSE);
if ((REMOTE_ThreadHandle(new_worker_id).ret = pthread_create(&REMOTE_ThreadHandle(new_worker_id).pthread_handle, NULL, thread_run, (void *)(&(REMOTE_ThreadHandle(new_worker_id).id)))) == 0) {
pthread_setspecific(Yap_yaamregs_key, (const void *)REMOTE_ThreadHandle(owid).current_yaam_regs);
/* wait until the client is initialised */
return TRUE;
}
pthread_setspecific(Yap_yaamregs_key, (const void *)REMOTE_ThreadHandle(owid).current_yaam_regs);
return FALSE;
}
static inline Float
get_float(Term t) {
if (IsFloatTerm(t)) {
return FloatOfTerm(t);
}
if (IsIntTerm(t)) {
return IntOfTerm(t);
}
if (IsLongIntTerm(t)) {
return LongIntOfTerm(t);
}
#ifdef USE_GMP
if (IsBigIntTerm(t)) {
return Yap_gmp_to_float(t);
}
#endif
return 0.0;
}
/// @memberof between/3
static Int
init_between( USES_REGS1 )
{
Term t1 = Deref(ARG1);
Term t2 = Deref(ARG2);
if (IsVarTerm(t1)) {
Yap_EvalError(INSTANTIATION_ERROR, t1, "between/3");
return FALSE;
}
if (IsVarTerm(t2)) {
Yap_EvalError(INSTANTIATION_ERROR, t1, "between/3");
return FALSE;
}
if (!IsIntegerTerm(t1) &&
!IsBigIntTerm(t1)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t1, "between/3");
return FALSE;
}
if (!IsIntegerTerm(t2) &&
!IsBigIntTerm(t2) &&
t2 != MkAtomTerm(AtomInf) &&
t2 != MkAtomTerm(AtomInfinity)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t2, "between/3");
return FALSE;
}
if (IsIntegerTerm(t1) && IsIntegerTerm(t2)) {
Int i1 = IntegerOfTerm(t1);
Int i2 = IntegerOfTerm(t2);
Term t3;
t3 = Deref(ARG3);
if (!IsVarTerm(t3)) {
if (!IsIntegerTerm(t3)) {
if (!IsBigIntTerm(t3)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t3, "between/3");
return FALSE;
}
cut_fail();
} else {
Int i3 = IntegerOfTerm(t3);
if (i3 >= i1 && i3 <= i2)
cut_succeed();
cut_fail();
}
}
if (i1 > i2) cut_fail();
if (i1 == i2) {
Yap_unify(ARG3, t1);
cut_succeed();
}
} else if (IsIntegerTerm(t1) && IsAtomTerm(t2)) {
Int i1 = IntegerOfTerm(t1);
Term t3;
t3 = Deref(ARG3);
if (!IsVarTerm(t3)) {
if (!IsIntegerTerm(t3)) {
if (!IsBigIntTerm(t3)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t3, "between/3");
return FALSE;
}
cut_fail();
} else {
Int i3 = IntegerOfTerm(t3);
if (i3 >= i1)
cut_succeed();
cut_fail();
}
}
} else {
Term t3 = Deref(ARG3);
Int cmp;
if (!IsVarTerm(t3)) {
if (!IsIntegerTerm(t3) && !IsBigIntTerm(t3)) {
Yap_EvalError(TYPE_ERROR_INTEGER, t3, "between/3");
return FALSE;
}
if (Yap_acmp(t3, t1 PASS_REGS) >= 0 && Yap_acmp(t2,t3 PASS_REGS) >= 0 && P != FAILCODE)
cut_succeed();
cut_fail();
}
cmp = Yap_acmp(t1, t2 PASS_REGS);
if (cmp > 0) cut_fail();
if (cmp == 0) {
Yap_unify(ARG3, t1);
cut_succeed();
}
}
EXTRA_CBACK_ARG(3,1) = t1;
EXTRA_CBACK_ARG(3,2) = t2;
return cont_between( PASS_REGS1 );
}
/// @memberof logsum/3
static Int
p_logsum( USES_REGS1 )
{ /* X is Y */
Term t1 = Deref(ARG1);
Term t2 = Deref(ARG2);
int done = FALSE;
Float f1, f2;
while (!done) {
if (IsFloatTerm(t1)) {
f1 = FloatOfTerm(t1);
done = TRUE;
} else if (IsIntegerTerm(t1)) {
f1 = IntegerOfTerm(t1);
done = TRUE;
#if USE_GMP
} else if (IsBigIntTerm(t1)) {
f1 = Yap_gmp_to_float(t1);
done = TRUE;
#endif
} else {
while (!(t1 = Eval(t1 PASS_REGS))) {
if (LOCAL_Error_TYPE == RESOURCE_ERROR_STACK) {
LOCAL_Error_TYPE = YAP_NO_ERROR;
if (!Yap_gcl(LOCAL_Error_Size, 1, ENV, CP)) {
Yap_EvalError(RESOURCE_ERROR_STACK, ARG2, LOCAL_ErrorMessage);
return FALSE;
}
} else {
Yap_EvalError(LOCAL_Error_TYPE, LOCAL_Error_Term, LOCAL_ErrorMessage);
return FALSE;
}
}
}
}
done = FALSE;
while (!done) {
if (IsFloatTerm(t2)) {
f2 = FloatOfTerm(t2);
done = TRUE;
} else if (IsIntegerTerm(t2)) {
f2 = IntegerOfTerm(t2);
done = TRUE;
#if USE_GMP
} else if (IsBigIntTerm(t2)) {
f2 = Yap_gmp_to_float(t2);
done = TRUE;
#endif
} else {
while (!(t2 = Eval(t2 PASS_REGS))) {
if (LOCAL_Error_TYPE == RESOURCE_ERROR_STACK) {
LOCAL_Error_TYPE = YAP_NO_ERROR;
if (!Yap_gcl(LOCAL_Error_Size, 2, ENV, CP)) {
Yap_EvalError(RESOURCE_ERROR_STACK, ARG2, LOCAL_ErrorMessage);
return FALSE;
}
} else {
Yap_EvalError(LOCAL_Error_TYPE, LOCAL_Error_Term, LOCAL_ErrorMessage);
return FALSE;
}
}
}
}
if (f1 >= f2) {
Float fi = exp(f2-f1);
return Yap_unify(ARG3,MkFloatTerm(f1+log(1+fi)));
} else {
Float fi = exp(f1-f2);
return Yap_unify(ARG3,MkFloatTerm(f2+log(1+fi)));
}
}
static Int a_cmp(Term t1, Term t2 USES_REGS) {
if (IsVarTerm(t1)) {
Yap_ArithError(INSTANTIATION_ERROR, t1,
"while doing arithmetic comparison");
}
if (IsVarTerm(t2)) {
Yap_ArithError(INSTANTIATION_ERROR, t2,
"while doing arithmetic comparison");
}
if (IsFloatTerm(t1) && IsFloatTerm(t2)) {
return flt_cmp(FloatOfTerm(t1) - FloatOfTerm(t2));
}
if (IsIntegerTerm(t1) && IsIntegerTerm(t2)) {
return int_cmp(IntegerOfTerm(t1) - IntegerOfTerm(t2));
}
t1 = Yap_Eval(t1);
if (!t1) {
return FALSE;
}
if (IsIntegerTerm(t1)) {
Int i1 = IntegerOfTerm(t1);
t2 = Yap_Eval(t2);
if (IsIntegerTerm(t2)) {
Int i2 = IntegerOfTerm(t2);
return int_cmp(i1 - i2);
} else if (IsFloatTerm(t2)) {
Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN
if (isnan(f2)) {
Yap_ArithError(EVALUATION_ERROR_UNDEFINED, t2,
"trying to evaluate nan");
}
#endif
return flt_cmp(i1 - f2);
#ifdef USE_GMP
} else if (IsBigIntTerm(t2)) {
return Yap_gmp_cmp_int_big(i1, t2);
#endif
} else {
return FALSE;
}
} else if (IsFloatTerm(t1)) {
Float f1 = FloatOfTerm(t1);
#if HAVE_ISNAN
if (isnan(f1)) {
Yap_ArithError(EVALUATION_ERROR_UNDEFINED, t1,
"trying to evaluate nan");
}
#endif
t2 = Yap_Eval(t2);
#if HAVE_ISNAN
if (isnan(f1))
return -1;
#endif
if (IsIntegerTerm(t2)) {
Int i2 = IntegerOfTerm(t2);
return flt_cmp(f1 - i2);
} else if (IsFloatTerm(t2)) {
Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN
if (isnan(f2)) {
Yap_ArithError(EVALUATION_ERROR_UNDEFINED, t2,
"trying to evaluate nan");
}
#endif
return flt_cmp(f1 - f2);
#ifdef USE_GMP
} else if (IsBigIntTerm(t2)) {
return Yap_gmp_cmp_float_big(f1, t2);
#endif
} else {
return FALSE;
}
#ifdef USE_GMP
} else if (IsBigIntTerm(t1)) {
{
t2 = Yap_Eval(t2);
if (IsIntegerTerm(t2)) {
return Yap_gmp_cmp_big_int(t1, IntegerOfTerm(t2));
} else if (IsFloatTerm(t2)) {
Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN
if (isnan(f2)) {
Yap_ArithError(EVALUATION_ERROR_UNDEFINED, t2,
"trying to evaluate nan");
}
#endif
return Yap_gmp_cmp_big_float(t1, f2);
} else if (IsBigIntTerm(t2)) {
return Yap_gmp_cmp_big_big(t1, t2);
} else {
return FALSE;
}
}
#endif
} else {
return FALSE;
}
}
inline static Int compare(Term t1, Term t2) /* compare terms t1 and t2 */
{
if (t1 == t2)
return 0;
if (IsVarTerm(t1)) {
if (IsVarTerm(t2))
return Signed(t1) - Signed(t2);
return -1;
} else if (IsVarTerm(t2)) {
/* get rid of variables */
return 1;
}
if (IsAtomOrIntTerm(t1)) {
if (IsAtomTerm(t1)) {
if (IsAtomTerm(t2))
return cmp_atoms(AtomOfTerm(t1), AtomOfTerm(t2));
if (IsPrimitiveTerm(t2))
return 1;
if (IsStringTerm(t2))
return 1;
return -1;
} else {
if (IsIntTerm(t2)) {
return IntOfTerm(t1) - IntOfTerm(t2);
}
if (IsApplTerm(t2)) {
Functor fun2 = FunctorOfTerm(t2);
switch ((CELL)fun2) {
case double_e:
return 1;
case long_int_e:
return IntOfTerm(t1) - LongIntOfTerm(t2);
#ifdef USE_GMP
case big_int_e:
return Yap_gmp_tcmp_int_big(IntOfTerm(t1), t2);
#endif
case db_ref_e:
return 1;
case string_e:
return -1;
}
}
return -1;
}
} else if (IsPairTerm(t1)) {
if (IsApplTerm(t2)) {
Functor f = FunctorOfTerm(t2);
if (IsExtensionFunctor(f))
return 1;
else {
if (f != FunctorDot)
return strcmp(".", RepAtom(NameOfFunctor(f))->StrOfAE);
else {
return compare_complex(RepPair(t1) - 1, RepPair(t1) + 1, RepAppl(t2));
}
}
}
if (IsPairTerm(t2)) {
return (
compare_complex(RepPair(t1) - 1, RepPair(t1) + 1, RepPair(t2) - 1));
} else
return 1;
} else {
/* compound term */
Functor fun1 = FunctorOfTerm(t1);
if (IsExtensionFunctor(fun1)) {
/* float, long, big, dbref */
switch ((CELL)fun1) {
case double_e: {
if (IsFloatTerm(t2))
return (rfloat(FloatOfTerm(t1) - FloatOfTerm(t2)));
if (IsRefTerm(t2))
return 1;
return -1;
}
case long_int_e: {
if (IsIntTerm(t2))
return LongIntOfTerm(t1) - IntOfTerm(t2);
if (IsFloatTerm(t2)) {
return 1;
}
if (IsLongIntTerm(t2))
return LongIntOfTerm(t1) - LongIntOfTerm(t2);
#ifdef USE_GMP
if (IsBigIntTerm(t2)) {
return Yap_gmp_tcmp_int_big(LongIntOfTerm(t1), t2);
}
#endif
if (IsRefTerm(t2))
return 1;
return -1;
}
#ifdef USE_GMP
case big_int_e: {
if (IsIntTerm(t2))
return Yap_gmp_tcmp_big_int(t1, IntOfTerm(t2));
if (IsFloatTerm(t2)) {
return 1;
}
if (IsLongIntTerm(t2))
return Yap_gmp_tcmp_big_int(t1, LongIntOfTerm(t2));
if (IsBigIntTerm(t2)) {
return Yap_gmp_tcmp_big_big(t1, t2);
}
if (IsRefTerm(t2))
return 1;
return -1;
}
#endif
case string_e: {
if (IsApplTerm(t2)) {
Functor fun2 = FunctorOfTerm(t2);
switch ((CELL)fun2) {
case double_e:
return 1;
case long_int_e:
return 1;
#ifdef USE_GMP
case big_int_e:
return 1;
#endif
case db_ref_e:
return 1;
case string_e:
return strcmp((char *)StringOfTerm(t1), (char *)StringOfTerm(t2));
}
return -1;
}
return -1;
}
case db_ref_e:
if (IsRefTerm(t2))
return Unsigned(RefOfTerm(t2)) - Unsigned(RefOfTerm(t1));
return -1;
}
}
if (!IsApplTerm(t2)) {
if (IsPairTerm(t2)) {
Int out;
Functor f = FunctorOfTerm(t1);
if (!(out = ArityOfFunctor(f)) - 2)
out = strcmp((char *)RepAtom(NameOfFunctor(f))->StrOfAE, ".");
return out;
}
return 1;
} else {
Functor fun2 = FunctorOfTerm(t2);
Int r;
if (IsExtensionFunctor(fun2)) {
return 1;
}
r = ArityOfFunctor(fun1) - ArityOfFunctor(fun2);
if (r)
return r;
r = cmp_atoms(NameOfFunctor(fun1), NameOfFunctor(fun2));
if (r)
return r;
else
return (compare_complex(RepAppl(t1), RepAppl(t1) + ArityOfFunctor(fun1),
RepAppl(t2)));
}
}
}
static Int compare_complex(register CELL *pt0, register CELL *pt0_end,
register CELL *pt1) {
CACHE_REGS
register CELL **to_visit = (CELL **)HR;
register Int out = 0;
loop:
while (pt0 < pt0_end) {
register CELL d0, d1;
++pt0;
++pt1;
d0 = Derefa(pt0);
d1 = Derefa(pt1);
if (IsVarTerm(d0)) {
if (IsVarTerm(d1)) {
out = Signed(d0) - Signed(d1);
if (out)
goto done;
} else {
out = -1;
goto done;
}
} else if (IsVarTerm(d1)) {
out = 1;
goto done;
} else {
if (d0 == d1)
continue;
else if (IsAtomTerm(d0)) {
if (IsAtomTerm(d1))
out = cmp_atoms(AtomOfTerm(d0), AtomOfTerm(d1));
else if (IsPrimitiveTerm(d1))
out = 1;
else
out = -1;
/* I know out must be != 0 */
goto done;
} else if (IsIntTerm(d0)) {
if (IsIntTerm(d1))
out = IntOfTerm(d0) - IntOfTerm(d1);
else if (IsFloatTerm(d1)) {
out = 1;
} else if (IsLongIntTerm(d1)) {
out = IntOfTerm(d0) - LongIntOfTerm(d1);
#ifdef USE_GMP
} else if (IsBigIntTerm(d1)) {
out = Yap_gmp_tcmp_int_big(IntOfTerm(d0), d1);
#endif
} else if (IsRefTerm(d1))
out = 1;
else
out = -1;
if (out != 0)
goto done;
} else if (IsFloatTerm(d0)) {
if (IsFloatTerm(d1)) {
out = rfloat(FloatOfTerm(d0) - FloatOfTerm(d1));
} else if (IsRefTerm(d1)) {
out = 1;
} else {
out = -1;
}
if (out != 0)
goto done;
} else if (IsStringTerm(d0)) {
if (IsStringTerm(d1)) {
out = strcmp((char *)StringOfTerm(d0), (char *)StringOfTerm(d1));
} else if (IsIntTerm(d1))
out = 1;
else if (IsFloatTerm(d1)) {
out = 1;
} else if (IsLongIntTerm(d1)) {
out = 1;
#ifdef USE_GMP
} else if (IsBigIntTerm(d1)) {
out = 1;
#endif
} else if (IsRefTerm(d1)) {
out = 1;
} else {
out = -1;
}
if (out != 0)
goto done;
} else if (IsLongIntTerm(d0)) {
if (IsIntTerm(d1))
out = LongIntOfTerm(d0) - IntOfTerm(d1);
else if (IsFloatTerm(d1)) {
out = 1;
} else if (IsLongIntTerm(d1)) {
out = LongIntOfTerm(d0) - LongIntOfTerm(d1);
#ifdef USE_GMP
} else if (IsBigIntTerm(d1)) {
out = Yap_gmp_tcmp_int_big(LongIntOfTerm(d0), d1);
#endif
} else if (IsRefTerm(d1)) {
out = 1;
} else {
out = -1;
}
if (out != 0)
goto done;
}
#ifdef USE_GMP
else if (IsBigIntTerm(d0)) {
if (IsIntTerm(d1)) {
out = Yap_gmp_tcmp_big_int(d0, IntOfTerm(d1));
} else if (IsFloatTerm(d1)) {
out = 1;
} else if (IsLongIntTerm(d1)) {
out = Yap_gmp_tcmp_big_int(d0, LongIntOfTerm(d1));
} else if (IsBigIntTerm(d1)) {
out = Yap_gmp_tcmp_big_big(d0, d1);
} else if (IsRefTerm(d1))
out = 1;
else
out = -1;
if (out != 0)
goto done;
}
#endif
else if (IsPairTerm(d0)) {
if (!IsPairTerm(d1)) {
if (IsApplTerm(d1)) {
Functor f = FunctorOfTerm(d1);
if (IsExtensionFunctor(f))
out = 1;
else if (!(out = 2 - ArityOfFunctor(f)))
out = strcmp(".", (char *)RepAtom(NameOfFunctor(f))->StrOfAE);
} else
out = 1;
goto done;
}
#ifdef RATIONAL_TREES
to_visit[0] = pt0;
to_visit[1] = pt0_end;
to_visit[2] = pt1;
to_visit[3] = (CELL *)*pt0;
to_visit += 4;
*pt0 = d1;
#else
/* store the terms to visit */
if (pt0 < pt0_end) {
to_visit[0] = pt0;
to_visit[1] = pt0_end;
to_visit[2] = pt1;
to_visit += 3;
}
#endif
pt0 = RepPair(d0) - 1;
pt0_end = RepPair(d0) + 1;
pt1 = RepPair(d1) - 1;
continue;
} else if (IsRefTerm(d0)) {
if (IsRefTerm(d1))
out = Unsigned(RefOfTerm(d1)) - Unsigned(RefOfTerm(d0));
else
out = -1;
goto done;
} else if (IsApplTerm(d0)) {
register Functor f;
register CELL *ap2, *ap3;
if (!IsApplTerm(d1)) {
out = 1;
goto done;
} else {
/* store the terms to visit */
Functor f2;
ap2 = RepAppl(d0);
ap3 = RepAppl(d1);
f = (Functor)(*ap2);
if (IsExtensionFunctor(f)) {
out = 1;
goto done;
}
f2 = (Functor)(*ap3);
if (IsExtensionFunctor(f2)) {
out = -1;
goto done;
}
/* compare functors */
if (f != (Functor)*ap3) {
if (!(out = ArityOfFunctor(f) - ArityOfFunctor(f2)))
out = cmp_atoms(NameOfFunctor(f), NameOfFunctor(f2));
goto done;
}
#ifdef RATIONAL_TREES
to_visit[0] = pt0;
to_visit[1] = pt0_end;
to_visit[2] = pt1;
to_visit[3] = (CELL *)*pt0;
to_visit += 4;
*pt0 = d1;
#else
/* store the terms to visit */
if (pt0 < pt0_end) {
to_visit[0] = pt0;
to_visit[1] = pt0_end;
to_visit[2] = pt1;
to_visit += 3;
}
#endif
d0 = ArityOfFunctor(f);
pt0 = ap2;
pt0_end = ap2 + d0;
pt1 = ap3;
continue;
}
}
}
}
/* Do we still have compound terms to visit */
if (to_visit > (CELL **)HR) {
#ifdef RATIONAL_TREES
to_visit -= 4;
pt0 = to_visit[0];
pt0_end = to_visit[1];
pt1 = to_visit[2];
*pt0 = (CELL)to_visit[3];
#else
to_visit -= 3;
pt0 = to_visit[0];
pt0_end = to_visit[1];
pt1 = to_visit[2];
#endif
goto loop;
}
done:
/* failure */
#ifdef RATIONAL_TREES
while (to_visit > (CELL **)HR) {
to_visit -= 4;
pt0 = to_visit[0];
pt0_end = to_visit[1];
pt1 = to_visit[2];
*pt0 = (CELL)to_visit[3];
}
#endif
return (out);
}
static inline Int
a_cmp(Term t1, Term t2)
{
ArithError = FALSE;
if (IsVarTerm(t1)) {
ArithError = TRUE;
Yap_Error(INSTANTIATION_ERROR, t1, "=:=/2");
return FALSE;
}
if (IsVarTerm(t2)) {
ArithError = TRUE;
Yap_Error(INSTANTIATION_ERROR, t2, "=:=/2");
return FALSE;
}
if (IsFloatTerm(t1) && IsFloatTerm(t2)) {
return flt_cmp(FloatOfTerm(t1)-FloatOfTerm(t2));
}
if (IsIntegerTerm(t1) && IsIntegerTerm(t2)) {
return int_cmp(IntegerOfTerm(t1)-IntegerOfTerm(t2));
}
t1 = Yap_Eval(t1);
if (!t1) {
return FALSE;
}
if (IsIntegerTerm(t1)) {
Int i1 = IntegerOfTerm(t1);
t2 = Yap_Eval(t2);
if (IsIntegerTerm(t2)) {
Int i2 = IntegerOfTerm(t2);
return int_cmp(i1-i2);
} else if (IsFloatTerm(t2)) {
Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN
if (isnan(f2)) {
Yap_Error_TYPE = EVALUATION_ERROR_UNDEFINED;
Yap_Error_Term = t2;
Yap_ErrorMessage = "trying to evaluate nan";
ArithError = TRUE;
}
#endif
return flt_cmp(i1-f2);
#ifdef USE_GMP
} else if (IsBigIntTerm(t2)) {
return Yap_gmp_cmp_int_big(i1,t2);
#endif
} else {
return FALSE;
}
} else if (IsFloatTerm(t1)) {
Float f1 = FloatOfTerm(t1);
#if HAVE_ISNAN
if (isnan(f1)) {
Yap_Error_TYPE = EVALUATION_ERROR_UNDEFINED;
Yap_Error_Term = t1;
Yap_ErrorMessage = "trying to evaluate nan";
ArithError = TRUE;
}
#endif
t2 = Yap_Eval(t2);
#if HAVE_ISNAN
if (isnan(f1))
return -1;
#endif
if (IsIntegerTerm(t2)) {
Int i2 = IntegerOfTerm(t2);
return flt_cmp(f1-i2);
} else if (IsFloatTerm(t2)) {
Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN
if (isnan(f2)) {
Yap_Error_TYPE = EVALUATION_ERROR_UNDEFINED;
Yap_Error_Term = t2;
Yap_ErrorMessage = "trying to evaluate nan";
ArithError = TRUE;
}
#endif
return flt_cmp(f1-f2);
#ifdef USE_GMP
} else if (IsBigIntTerm(t2)) {
return Yap_gmp_cmp_float_big(f1,t2);
#endif
} else {
return FALSE;
}
#ifdef USE_GMP
} else if (IsBigIntTerm(t1)) {
{
t2 = Yap_Eval(t2);
if (IsIntegerTerm(t2)) {
return Yap_gmp_cmp_big_int(t1, IntegerOfTerm(t2));
} else if (IsFloatTerm(t2)) {
Float f2 = FloatOfTerm(t2);
#if HAVE_ISNAN
if (isnan(f2)) {
Yap_Error_TYPE = EVALUATION_ERROR_UNDEFINED;
Yap_Error_Term = t2;
Yap_ErrorMessage = "trying to evaluate nan";
ArithError = TRUE;
}
#endif
return Yap_gmp_cmp_big_float(t1, f2);
} else if (IsBigIntTerm(t2)) {
return Yap_gmp_cmp_big_big(t1, t2);
} else {
return FALSE;
}
}
#endif
} else {
return FALSE;
}
}