766 lines
15 KiB
C
Executable File
766 lines
15 KiB
C
Executable File
/*************************************************************************
|
|
* *
|
|
* YAP Prolog %W% %G% *
|
|
* Yap Prolog was developed at NCCUP - Universidade do Porto *
|
|
* *
|
|
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
|
|
* *
|
|
**************************************************************************
|
|
* *
|
|
* File: TermExt.h *
|
|
* mods: *
|
|
* comments: Extensions to standard terms for YAP *
|
|
* version: $Id: TermExt.h,v 1.15 2008-03-25 22:03:13 vsc Exp $ *
|
|
*************************************************************************/
|
|
|
|
/**
|
|
|
|
@file TermExt.h
|
|
|
|
@page Extensions Extensions to Prolog
|
|
|
|
YAP includes a number of extensions over the original Prolog
|
|
language. Next, we discuss support to the most important ones.
|
|
|
|
|
|
*/
|
|
|
|
|
|
#ifdef USE_SYSTEM_MALLOC
|
|
#define SF_STORE (&(Yap_heap_regs->funcs))
|
|
#else
|
|
#define SF_STORE ((special_functors *)HEAP_INIT_BASE)
|
|
#endif
|
|
|
|
#ifdef USE_OFFSETS
|
|
#define AtomFoundVar ((Atom)(&(((special_functors *)(NULL))->AtFoundVar)))
|
|
#define AtomFreeTerm ((Atom)(&(((special_functors *)(NULL))->AtFreeTerm)))
|
|
#define AtomNil ((Atom)(&(((special_functors *)(NULL))->AtNil)))
|
|
#define AtomDot ((Atom)(&(((special_functors *)(NULL))->AtDot)))
|
|
#elif defined(THREADS)
|
|
#define AtomFoundVar AbsAtom(SF_STORE->AtFoundVar)
|
|
#define AtomFreeTerm AbsAtom(SF_STORE->AtFreeTerm)
|
|
#define AtomNil AbsAtom(SF_STORE->AtNil)
|
|
#define AtomDot AbsAtom(SF_STORE->AtDot)
|
|
#else
|
|
#define AtomFoundVar AbsAtom(&(SF_STORE->AtFoundVar))
|
|
#define AtomFreeTerm AbsAtom(&(SF_STORE->AtFreeTerm))
|
|
#define AtomNil AbsAtom(&(SF_STORE->AtNil))
|
|
#define AtomDot AbsAtom(&(SF_STORE->AtDot))
|
|
#endif
|
|
|
|
#define TermFoundVar MkAtomTerm(AtomFoundVar)
|
|
#define TermFreeTerm MkAtomTerm(AtomFreeTerm)
|
|
#define TermNil MkAtomTerm(AtomNil)
|
|
#define TermDot MkAtomTerm(AtomDot)
|
|
|
|
typedef enum
|
|
{
|
|
db_ref_e = sizeof (Functor *),
|
|
attvar_e = 2*sizeof (Functor *),
|
|
double_e = 3 * sizeof (Functor *),
|
|
long_int_e = 4 * sizeof (Functor *),
|
|
big_int_e = 5 * sizeof (Functor *),
|
|
string_e = 6 * sizeof (Functor *)
|
|
}
|
|
blob_type;
|
|
|
|
#define FunctorDBRef ((Functor)(db_ref_e))
|
|
#define FunctorAttVar ((Functor)(attvar_e))
|
|
#define FunctorDouble ((Functor)(double_e))
|
|
#define FunctorLongInt ((Functor)(long_int_e))
|
|
#define FunctorBigInt ((Functor)(big_int_e))
|
|
#define FunctorString ((Functor)(string_e))
|
|
#define EndSpecials (string_e+sizeof(Functor *))
|
|
|
|
#include "inline-only.h"
|
|
|
|
#define IsAttVar(pt) __IsAttVar((pt) PASS_REGS)
|
|
|
|
INLINE_ONLY inline EXTERN int __IsAttVar (CELL *pt USES_REGS);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
__IsAttVar (CELL *pt USES_REGS)
|
|
{
|
|
#ifdef YAP_H
|
|
return (pt)[-1] == (CELL)attvar_e
|
|
&& pt < HR;
|
|
#else
|
|
return (pt)[-1] == (CELL)attvar_e;
|
|
#endif
|
|
}
|
|
|
|
INLINE_ONLY inline EXTERN int GlobalIsAttVar (CELL *pt);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
GlobalIsAttVar (CELL *pt)
|
|
{
|
|
return (pt)[-1] == (CELL)attvar_e;
|
|
}
|
|
|
|
typedef enum
|
|
{
|
|
BIG_INT = 0x01,
|
|
BIG_RATIONAL = 0x02,
|
|
BIG_FLOAT = 0x04,
|
|
EMPTY_ARENA = 0x10,
|
|
ARRAY_INT = 0x21,
|
|
ARRAY_FLOAT = 0x22,
|
|
CLAUSE_LIST = 0x40,
|
|
EXTERNAL_BLOB = 0x100, /* generic data */
|
|
USER_BLOB_START = 0x1000, /* user defined blob */
|
|
USER_BLOB_END = 0x1100 /* end of user defined blob */
|
|
}
|
|
big_blob_type;
|
|
|
|
INLINE_ONLY inline EXTERN blob_type BlobOfFunctor (Functor f);
|
|
|
|
INLINE_ONLY inline EXTERN blob_type
|
|
BlobOfFunctor (Functor f)
|
|
{
|
|
return (blob_type) ((CELL)f);
|
|
}
|
|
|
|
typedef struct cp_frame {
|
|
CELL *start_cp;
|
|
CELL *end_cp;
|
|
CELL *to;
|
|
#ifdef RATIONAL_TREES
|
|
CELL oldv;
|
|
int ground;
|
|
#endif
|
|
} copy_frame;
|
|
|
|
|
|
#ifdef COROUTINING
|
|
|
|
typedef struct
|
|
{
|
|
/* what to do when someone tries to bind our term to someone else
|
|
in some predefined context */
|
|
void (*bind_op) (Term *, Term CACHE_TYPE);
|
|
/* what to do if someone wants to copy our constraint */
|
|
int (*copy_term_op) (CELL *, struct cp_frame **, CELL * CACHE_TYPE);
|
|
/* copy the constraint into a term and back */
|
|
Term (*to_term_op) (CELL *);
|
|
int (*term_to_op) (Term, Term CACHE_TYPE);
|
|
/* op called to do marking in GC */
|
|
void (*mark_op) (CELL *);
|
|
} ext_op;
|
|
|
|
/* known delays */
|
|
typedef enum
|
|
{
|
|
empty_ext = 0 * sizeof (ext_op), /* default op, this should never be called */
|
|
attvars_ext = 1 * sizeof (ext_op) /* support for attributed variables */
|
|
/* add your own extensions here */
|
|
/* keep this one */
|
|
}
|
|
exts;
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
#ifdef YAP_H
|
|
/* make sure that these data structures are the first thing to be allocated
|
|
in the heap when we start the system */
|
|
#ifdef THREADS
|
|
typedef struct special_functors_struct
|
|
{
|
|
AtomEntry *AtFoundVar;
|
|
AtomEntry *AtFreeTerm;
|
|
AtomEntry *AtNil;
|
|
AtomEntry *AtDot;
|
|
} special_functors;
|
|
#else
|
|
typedef struct special_functors_struct
|
|
{
|
|
AtomEntry AtFoundVar;
|
|
char AtFoundVarChars[8];
|
|
AtomEntry AtFreeTerm;
|
|
char AtFreeTermChars[8];
|
|
AtomEntry AtNil;
|
|
char AtNilChars[8];
|
|
AtomEntry AtDot;
|
|
char AtDotChars[8];
|
|
}
|
|
special_functors;
|
|
#endif
|
|
|
|
#endif /* YAP_H */
|
|
|
|
INLINE_ONLY inline EXTERN Float CpFloatUnaligned(CELL *ptr);
|
|
|
|
#define MkFloatTerm(fl) __MkFloatTerm((fl) PASS_REGS)
|
|
|
|
INLINE_ONLY inline EXTERN Term __MkFloatTerm (Float USES_REGS);
|
|
|
|
INLINE_ONLY inline EXTERN Float FloatOfTerm (Term t);
|
|
|
|
#if SIZEOF_DOUBLE == SIZEOF_INT_P
|
|
|
|
INLINE_ONLY inline EXTERN Term
|
|
__MkFloatTerm (Float dbl USES_REGS)
|
|
{
|
|
return (Term) ((HR[0] = (CELL) FunctorDouble, *(Float *) (HR + 1) =
|
|
dbl, HR[2] = EndSpecials, HR +=
|
|
3, AbsAppl (HR - 3)));
|
|
}
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Float
|
|
FloatOfTerm (Term t)
|
|
{
|
|
return (Float) (*(Float *) (RepAppl (t) + 1));
|
|
}
|
|
|
|
|
|
|
|
#define InitUnalignedFloat()
|
|
|
|
INLINE_ONLY inline EXTERN Float
|
|
CpFloatUnaligned(CELL *ptr)
|
|
{
|
|
return *((Float *)ptr);
|
|
}
|
|
|
|
#else
|
|
|
|
#if SIZEOF_DOUBLE == 2*SIZEOF_INT_P
|
|
|
|
#define DOUBLE_ALIGNED(ADDR) ((CELL)(ADDR) & 0x4)
|
|
|
|
INLINE_ONLY EXTERN inline void
|
|
AlignGlobalForDouble( USES_REGS1 );
|
|
|
|
INLINE_ONLY EXTERN inline void
|
|
AlignGlobalForDouble( USES_REGS1 )
|
|
{
|
|
/* Force Alignment for floats. Note that garbage collector may
|
|
break the alignment; */
|
|
if (!DOUBLE_ALIGNED(HR)) {
|
|
RESET_VARIABLE(HR);
|
|
HR++;
|
|
}
|
|
}
|
|
|
|
#ifdef i386
|
|
INLINE_ONLY inline EXTERN Float
|
|
CpFloatUnaligned (CELL * ptr)
|
|
{
|
|
return *((Float *) (ptr + 1));
|
|
}
|
|
|
|
#else
|
|
/* first, need to address the alignment problem */
|
|
INLINE_ONLY inline EXTERN Float
|
|
CpFloatUnaligned (CELL * ptr)
|
|
{
|
|
union
|
|
{
|
|
Float f;
|
|
CELL d[2];
|
|
} u;
|
|
u.d[0] = ptr[1];
|
|
u.d[1] = ptr[2];
|
|
return (u.f);
|
|
}
|
|
|
|
#endif
|
|
|
|
INLINE_ONLY inline EXTERN Term
|
|
__MkFloatTerm (Float dbl USES_REGS)
|
|
{
|
|
return (Term) ((AlignGlobalForDouble ( PASS_REGS1 ), HR[0] =
|
|
(CELL) FunctorDouble, *(Float *) (HR + 1) = dbl, HR[3] =
|
|
EndSpecials, HR +=
|
|
4, AbsAppl (HR - 4)));
|
|
}
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Float
|
|
FloatOfTerm (Term t)
|
|
{
|
|
return (Float) ((DOUBLE_ALIGNED (RepAppl (t)) ? *(Float *) (RepAppl (t) + 1)
|
|
: CpFloatUnaligned (RepAppl (t))));
|
|
}
|
|
|
|
|
|
/* no alignment problems for 64 bit machines */
|
|
#else
|
|
/* OOPS, YAP only understands Floats that are as large as cells or that
|
|
take two cells!!! */
|
|
|
|
OOPS
|
|
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef YAP_H
|
|
#include <stddef.h>
|
|
#endif
|
|
|
|
|
|
INLINE_ONLY inline EXTERN int IsFloatTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsFloatTerm (Term t)
|
|
{
|
|
return (int) (IsApplTerm (t) && FunctorOfTerm (t) == FunctorDouble);
|
|
}
|
|
|
|
|
|
/* extern Functor FunctorLongInt; */
|
|
|
|
#define MkLongIntTerm(i) __MkLongIntTerm((i) PASS_REGS)
|
|
|
|
INLINE_ONLY inline EXTERN Term __MkLongIntTerm (Int USES_REGS);
|
|
|
|
INLINE_ONLY inline EXTERN Term
|
|
__MkLongIntTerm (Int i USES_REGS)
|
|
{
|
|
HR[0] = (CELL) FunctorLongInt;
|
|
HR[1] = (CELL) (i);
|
|
HR[2] = EndSpecials;
|
|
HR += 3;
|
|
return AbsAppl(HR - 3);
|
|
}
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Int LongIntOfTerm (Term t);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
LongIntOfTerm (Term t)
|
|
{
|
|
return (Int) (RepAppl (t)[1]);
|
|
}
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN int IsLongIntTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsLongIntTerm (Term t)
|
|
{
|
|
return (int) (IsApplTerm (t) && FunctorOfTerm (t) == FunctorLongInt);
|
|
}
|
|
|
|
|
|
/****************************************************/
|
|
|
|
/*********** strings, coded as UTF-8 ****************/
|
|
|
|
#include <string.h>
|
|
|
|
/* extern Functor FunctorString; */
|
|
|
|
#define MkStringTerm(i) __MkStringTerm((i) PASS_REGS)
|
|
|
|
INLINE_ONLY inline EXTERN Term __MkStringTerm (const char *s USES_REGS);
|
|
|
|
INLINE_ONLY inline EXTERN Term
|
|
__MkStringTerm (const char *s USES_REGS)
|
|
{
|
|
Term t = AbsAppl(HR);
|
|
size_t sz = ALIGN_YAPTYPE(strlen(s)+1,CELL);
|
|
HR[0] = (CELL) FunctorString;
|
|
HR[1] = (CELL) sz;
|
|
strcpy((char *)(HR+2), s);
|
|
HR[2+sz] = EndSpecials;
|
|
HR += 3+sz;
|
|
return t;
|
|
}
|
|
|
|
|
|
INLINE_ONLY inline EXTERN const char *StringOfTerm (Term t);
|
|
|
|
INLINE_ONLY inline EXTERN const char *
|
|
StringOfTerm (Term t)
|
|
{
|
|
return (const char *) (RepAppl (t)+2);
|
|
}
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN int IsStringTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsStringTerm (Term t)
|
|
{
|
|
return (int) (IsApplTerm (t) && FunctorOfTerm (t) == FunctorString);
|
|
}
|
|
|
|
|
|
|
|
/****************************************************/
|
|
|
|
#ifdef USE_GMP
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <gmp.h>
|
|
|
|
#else
|
|
|
|
typedef UInt mp_limb_t;
|
|
|
|
typedef struct {
|
|
Int _mp_size, _mp_alloc;
|
|
mp_limb_t *_mp_d;
|
|
} MP_INT;
|
|
|
|
typedef struct {
|
|
MP_INT _mp_num;
|
|
MP_INT _mp_den;
|
|
} MP_RAT;
|
|
|
|
#endif
|
|
|
|
INLINE_ONLY inline EXTERN int IsBigIntTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsBigIntTerm (Term t)
|
|
{
|
|
return (int) (IsApplTerm (t) && FunctorOfTerm (t) == FunctorBigInt);
|
|
}
|
|
|
|
#ifdef USE_GMP
|
|
|
|
Term Yap_MkBigIntTerm(MP_INT *);
|
|
MP_INT *Yap_BigIntOfTerm(Term);
|
|
|
|
Term Yap_MkBigRatTerm(MP_RAT *);
|
|
MP_RAT *Yap_BigRatOfTerm(Term);
|
|
|
|
INLINE_ONLY inline EXTERN void MPZ_SET (mpz_t, MP_INT *);
|
|
|
|
INLINE_ONLY inline EXTERN void
|
|
MPZ_SET (mpz_t dest, MP_INT *src)
|
|
{
|
|
dest->_mp_size = src->_mp_size;
|
|
dest->_mp_alloc = src->_mp_alloc;
|
|
dest->_mp_d = src->_mp_d;
|
|
}
|
|
|
|
INLINE_ONLY inline EXTERN int IsLargeIntTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsLargeIntTerm (Term t)
|
|
{
|
|
return (int) (IsApplTerm (t)
|
|
&& ((FunctorOfTerm (t) <= FunctorBigInt)
|
|
&& (FunctorOfTerm (t) >= FunctorLongInt)));
|
|
}
|
|
|
|
|
|
INLINE_ONLY inline EXTERN UInt Yap_SizeOfBigInt (Term);
|
|
|
|
INLINE_ONLY inline EXTERN UInt
|
|
Yap_SizeOfBigInt (Term t)
|
|
{
|
|
CELL *pt = RepAppl(t)+1;
|
|
return 2+(sizeof(MP_INT)+
|
|
(((MP_INT *)pt)->_mp_alloc*sizeof(mp_limb_t)))/sizeof(CELL);
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN int IsLargeIntTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsLargeIntTerm (Term t)
|
|
{
|
|
return (int) (IsApplTerm (t) && FunctorOfTerm (t) == FunctorLongInt);
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
/* extern Functor FunctorLongInt; */
|
|
|
|
INLINE_ONLY inline EXTERN int IsLargeNumTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsLargeNumTerm (Term t)
|
|
{
|
|
return (int) (IsApplTerm (t)
|
|
&& ((FunctorOfTerm (t) <= FunctorBigInt)
|
|
&& (FunctorOfTerm (t) >= FunctorDouble)));
|
|
}
|
|
|
|
INLINE_ONLY inline EXTERN int IsExternalBlobTerm (Term, CELL);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsExternalBlobTerm (Term t, CELL tag)
|
|
{
|
|
return (int) (IsApplTerm (t) &&
|
|
FunctorOfTerm (t) == FunctorBigInt &&
|
|
RepAppl(t)[1] == tag);
|
|
}
|
|
|
|
INLINE_ONLY inline EXTERN void *ExternalBlobFromTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN void *
|
|
ExternalBlobFromTerm (Term t)
|
|
{
|
|
MP_INT *base = (MP_INT *)(RepAppl(t)+2);
|
|
return (void *) (base+1);
|
|
}
|
|
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN int IsNumTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
IsNumTerm (Term t)
|
|
{
|
|
return (int) ((IsIntTerm (t) || IsLargeNumTerm (t)));
|
|
}
|
|
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Int IsAtomicTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
IsAtomicTerm (Term t)
|
|
{
|
|
return (Int) (IsAtomOrIntTerm (t) || IsLargeNumTerm (t));
|
|
}
|
|
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Int IsExtensionFunctor (Functor);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
IsExtensionFunctor (Functor f)
|
|
{
|
|
return (Int) (f <= FunctorString);
|
|
}
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Int IsBlobFunctor (Functor);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
IsBlobFunctor (Functor f)
|
|
{
|
|
return (Int) ((f <= FunctorString && f >= FunctorDBRef));
|
|
}
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Int IsPrimitiveTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
IsPrimitiveTerm (Term t)
|
|
{
|
|
return (Int) ((IsAtomOrIntTerm (t)
|
|
|| (IsApplTerm (t) && IsBlobFunctor (FunctorOfTerm (t)))));
|
|
}
|
|
|
|
#ifdef TERM_EXTENSIONS
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Int IsAttachFunc (Functor);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
IsAttachFunc (Functor f)
|
|
{
|
|
return (Int) (FALSE);
|
|
}
|
|
|
|
|
|
|
|
#define IsAttachedTerm(t) __IsAttachedTerm(t PASS_REGS)
|
|
|
|
INLINE_ONLY inline EXTERN Int __IsAttachedTerm (Term USES_REGS);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
__IsAttachedTerm (Term t USES_REGS)
|
|
{
|
|
return (Int) ((IsVarTerm (t) && IsAttVar(VarOfTerm(t))));
|
|
}
|
|
|
|
INLINE_ONLY inline EXTERN Int GlobalIsAttachedTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
GlobalIsAttachedTerm (Term t)
|
|
{
|
|
return (Int) ((IsVarTerm (t) && GlobalIsAttVar(VarOfTerm(t))));
|
|
}
|
|
|
|
#define SafeIsAttachedTerm(t) __SafeIsAttachedTerm((t) PASS_REGS)
|
|
|
|
INLINE_ONLY inline EXTERN Int __SafeIsAttachedTerm (Term USES_REGS);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
__SafeIsAttachedTerm (Term t USES_REGS)
|
|
{
|
|
return (Int) (IsVarTerm (t) && IsAttVar(VarOfTerm(t)));
|
|
}
|
|
|
|
INLINE_ONLY inline EXTERN exts ExtFromCell (CELL *);
|
|
|
|
INLINE_ONLY inline EXTERN exts
|
|
ExtFromCell (CELL * pt)
|
|
{
|
|
return attvars_ext;
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Int IsAttachFunc (Functor);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
IsAttachFunc (Functor f)
|
|
{
|
|
return (Int) (FALSE);
|
|
}
|
|
|
|
|
|
|
|
|
|
INLINE_ONLY inline EXTERN Int IsAttachedTerm (Term);
|
|
|
|
INLINE_ONLY inline EXTERN Int
|
|
IsAttachedTerm (Term t)
|
|
{
|
|
return (Int) (FALSE);
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
INLINE_ONLY inline EXTERN Int Yap_BlobTag(Term t);
|
|
|
|
INLINE_ONLY inline EXTERN Int Yap_BlobTag(Term t)
|
|
{
|
|
CELL *pt = RepAppl(t);
|
|
|
|
return pt[1];
|
|
}
|
|
|
|
|
|
INLINE_ONLY inline EXTERN void *Yap_BlobInfo(Term t);
|
|
|
|
INLINE_ONLY inline EXTERN void *Yap_BlobInfo(Term t)
|
|
{
|
|
MP_INT *blobp;
|
|
CELL *pt = RepAppl(t);
|
|
|
|
blobp = (MP_INT *)(pt+2);
|
|
return (void *)(blobp+1);
|
|
}
|
|
|
|
#ifdef YAP_H
|
|
|
|
INLINE_ONLY inline EXTERN int unify_extension(Functor, CELL, CELL *, CELL);
|
|
|
|
EXTERN int unify_extension(Functor, CELL, CELL *, CELL);
|
|
|
|
int Yap_gmp_tcmp_big_big(Term, Term);
|
|
|
|
INLINE_ONLY inline EXTERN int
|
|
unify_extension (Functor f, CELL d0, CELL * pt0, CELL d1)
|
|
{
|
|
switch (BlobOfFunctor (f))
|
|
{
|
|
case db_ref_e:
|
|
return (d0 == d1);
|
|
case attvar_e:
|
|
return (d0 == d1);
|
|
case long_int_e:
|
|
return (pt0[1] == RepAppl (d1)[1]);
|
|
case string_e:
|
|
return strcmp( (char *)(pt0+2), (char *)(RepAppl (d1)+2) ) == 0;
|
|
case big_int_e:
|
|
#ifdef USE_GMP
|
|
return (Yap_gmp_tcmp_big_big(d0,d1) == 0);
|
|
#else
|
|
return d0 == d1;
|
|
#endif /* USE_GMP */
|
|
case double_e:
|
|
{
|
|
CELL *pt1 = RepAppl (d1);
|
|
return (pt0[1] == pt1[1]
|
|
#if SIZEOF_DOUBLE == 2*SIZEOF_INT_P
|
|
&& pt0[2] == pt1[2]
|
|
#endif
|
|
);
|
|
}
|
|
}
|
|
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_DOUBLE1 == 2*SIZEOF_INT_P
|
|
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);
|
|
}
|
|
|
|
static inline
|
|
CELL Yap_StringP_key(CELL *pt)
|
|
{
|
|
UInt n = pt[1], i;
|
|
CELL val = pt[2];
|
|
for (i=1; i<n; i++) {
|
|
val ^= pt[i+1];
|
|
}
|
|
return MkIntTerm(val & (MAX_ABS_INT-1));
|
|
}
|
|
|
|
static inline
|
|
CELL Yap_String_key(Term t)
|
|
{
|
|
return Yap_StringP_key(RepAppl(t)+1);
|
|
}
|
|
|
|
#endif
|