1012146c28
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@270 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
437 lines
8.8 KiB
C
437 lines
8.8 KiB
C
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*************************************************************************
|
|
* *
|
|
* 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 1.7 2002-01-05 04:04:14 vsc Exp $ *
|
|
*************************************************************************/
|
|
|
|
#if USE_OFFSETS
|
|
#define AtomFoundVar ((Atom)(&(((special_functors *)(NULL))->AtFoundVar)))
|
|
#define AtomNil ((Atom)(&(((special_functors *)(NULL))->AtNil)))
|
|
#define AtomDot ((Atom)(&(((special_functors *)(NULL))->AtDot)))
|
|
#else
|
|
#define AtomFoundVar AbsAtom(&(SF_STORE->AtFoundVar))
|
|
#define AtomNil AbsAtom(&(SF_STORE->AtNil))
|
|
#define AtomDot AbsAtom(&(SF_STORE->AtDot))
|
|
#endif
|
|
|
|
#define TermFoundVar MkAtomTerm(AtomFoundVar)
|
|
#define TermNil MkAtomTerm(AtomNil)
|
|
#define TermDot MkAtomTerm(AtomDot)
|
|
|
|
#ifdef IN_SECOND_QUADRANT
|
|
typedef enum {
|
|
db_ref_e = sizeof(Functor *)|RBIT,
|
|
long_int_e = 2*sizeof(Functor *)|RBIT,
|
|
#ifdef USE_GMP
|
|
big_int_e = 3*sizeof(Functor *)|RBIT,
|
|
double_e = 4*sizeof(Functor *)|RBIT
|
|
#else
|
|
double_e = 3*sizeof(Functor *)|RBIT
|
|
#endif
|
|
} blob_type;
|
|
#else
|
|
typedef enum {
|
|
db_ref_e = sizeof(Functor *),
|
|
long_int_e = 2*sizeof(Functor *),
|
|
#ifdef USE_GMP
|
|
big_int_e = 3*sizeof(Functor *),
|
|
double_e = 4*sizeof(Functor *)
|
|
#else
|
|
double_e = 3*sizeof(Functor *)
|
|
#endif
|
|
} blob_type;
|
|
#endif
|
|
|
|
#define FunctorDBRef ((Functor)(db_ref_e))
|
|
#define FunctorLongInt ((Functor)(long_int_e))
|
|
#ifdef USE_GMP
|
|
#define FunctorBigInt ((Functor)(big_int_e))
|
|
#endif
|
|
#define FunctorDouble ((Functor)(double_e))
|
|
#define EndSpecials (double_e)
|
|
|
|
|
|
inline EXTERN blob_type BlobOfFunctor(Functor f);
|
|
|
|
inline EXTERN blob_type BlobOfFunctor(Functor f)
|
|
{
|
|
return (blob_type) ((CELL)f);
|
|
}
|
|
|
|
|
|
|
|
#define SF_STORE ((special_functors *)HEAP_INIT_BASE)
|
|
|
|
#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);
|
|
/* what to do if someone wants to copy our constraint */
|
|
int (*copy_term_op)(CELL *, CELL ***, CELL *);
|
|
/* copy the constraint into a term and back */
|
|
Term (*to_term_op)(CELL *);
|
|
int (*term_to_op)(Term, Term);
|
|
/* 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 */
|
|
susp_ext = 1*sizeof(ext_op), /* support for delayable goals */
|
|
attvars_ext = 2*sizeof(ext_op), /* support for attributed variables */
|
|
/* add your own extensions here */
|
|
/* keep this one */
|
|
} exts;
|
|
|
|
|
|
/* array with the ops for your favourite extensions */
|
|
extern ext_op attas[attvars_ext+1];
|
|
|
|
#endif
|
|
|
|
/* make sure that these data structures are the first thing to be allocated
|
|
in the heap when we start the system */
|
|
typedef struct special_functors_struct
|
|
{
|
|
AtomEntry AtFoundVar;
|
|
char AtFoundVarChars[8];
|
|
AtomEntry AtNil;
|
|
char AtNilChars[8];
|
|
AtomEntry AtDot;
|
|
char AtDotChars[8];
|
|
}
|
|
special_functors;
|
|
|
|
#if SIZEOF_DOUBLE == SIZEOF_LONG_INT
|
|
|
|
inline EXTERN Term MkFloatTerm(Float);
|
|
|
|
inline EXTERN Term MkFloatTerm(Float dbl)
|
|
{
|
|
return (Term) ((H[0] = (CELL)FunctorDouble, *(Float *)(H+1) = dbl, H[2]=((2*sizeof(CELL)+EndSpecials)|MBIT),H+=3,AbsAppl(H-3)));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Float FloatOfTerm(Term t);
|
|
|
|
inline EXTERN Float FloatOfTerm(Term t)
|
|
{
|
|
return (Float) (*(Float *)(RepAppl(t)+1));
|
|
}
|
|
|
|
|
|
|
|
#define InitUnalignedFloat()
|
|
|
|
#else
|
|
|
|
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
|
|
|
|
#ifdef i386X
|
|
#define DOUBLE_ALIGNED(ADDR) TRUE
|
|
#else
|
|
/* first, need to address the alignment problem */
|
|
#define DOUBLE_ALIGNED(ADDR) ((CELL)(ADDR) & 0x4)
|
|
#endif
|
|
|
|
inline EXTERN Float STD_PROTO(CpFloatUnaligned,(CELL *));
|
|
|
|
|
|
inline EXTERN void STD_PROTO(AlignGlobalForDouble,(void));
|
|
|
|
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);
|
|
}
|
|
|
|
|
|
inline EXTERN Term MkFloatTerm(Float);
|
|
|
|
inline EXTERN Term MkFloatTerm(Float dbl)
|
|
{
|
|
return (Term) ((AlignGlobalForDouble(), H[0] = (CELL)FunctorDouble, *(Float *)(H+1) = dbl, H[3]=((3*sizeof(CELL)+EndSpecials)|MBIT), H+=4, AbsAppl(H-4)));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Float FloatOfTerm(Term t);
|
|
|
|
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!!! */
|
|
#endif
|
|
#endif
|
|
|
|
|
|
inline EXTERN int IsFloatTerm(Term);
|
|
|
|
inline EXTERN int IsFloatTerm(Term t)
|
|
{
|
|
return (int) (IsApplTerm(t) && FunctorOfTerm(t) == FunctorDouble);
|
|
}
|
|
|
|
|
|
|
|
|
|
/* extern Functor FunctorLongInt; */
|
|
|
|
inline EXTERN Term MkLongIntTerm(Int);
|
|
|
|
inline EXTERN Term MkLongIntTerm(Int i)
|
|
{
|
|
return (Term) ((H[0] = (CELL)FunctorLongInt,H[1] = (CELL)(i),H[2]=((2*sizeof(CELL)+EndSpecials)|MBIT),H+=3,AbsAppl(H-3)));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Int LongIntOfTerm(Term t);
|
|
|
|
inline EXTERN Int LongIntOfTerm(Term t)
|
|
{
|
|
return (Int) (RepAppl(t)[1]);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN int IsLongIntTerm(Term);
|
|
|
|
inline EXTERN int IsLongIntTerm(Term t)
|
|
{
|
|
return (int) (IsApplTerm(t) && FunctorOfTerm(t) == FunctorLongInt);
|
|
}
|
|
|
|
|
|
|
|
|
|
#ifdef USE_GMP
|
|
#include <stdio.h>
|
|
#include <gmp.h>
|
|
|
|
|
|
MP_INT *STD_PROTO(PreAllocBigNum,(void));
|
|
MP_INT *STD_PROTO(InitBigNum,(Int));
|
|
Term STD_PROTO(MkBigIntTerm, (MP_INT *));
|
|
MP_INT *STD_PROTO(BigIntOfTerm, (Term));
|
|
void STD_PROTO(CleanBigNum,(void));
|
|
|
|
|
|
inline EXTERN int IsBigIntTerm(Term);
|
|
|
|
inline EXTERN int IsBigIntTerm(Term t)
|
|
{
|
|
return (int) (IsApplTerm(t) && FunctorOfTerm(t) == FunctorBigInt);
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN int IsLargeIntTerm(Term);
|
|
|
|
inline EXTERN int IsLargeIntTerm(Term t)
|
|
{
|
|
return (int) (IsApplTerm(t) && ((FunctorOfTerm(t) <= FunctorBigInt) && (FunctorOfTerm(t) >= FunctorLongInt)));
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
inline EXTERN int IsBigIntTerm(Term);
|
|
|
|
inline EXTERN int IsBigIntTerm(Term t)
|
|
{
|
|
return (int) (FALSE);
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN int IsLargeIntTerm(Term);
|
|
|
|
inline EXTERN int IsLargeIntTerm(Term t)
|
|
{
|
|
return (int) (IsApplTerm(t) && FunctorOfTerm(t) == FunctorLongInt);
|
|
}
|
|
|
|
|
|
|
|
#endif
|
|
|
|
/* extern Functor FunctorLongInt; */
|
|
|
|
inline EXTERN int IsLargeNumTerm(Term);
|
|
|
|
inline EXTERN int IsLargeNumTerm(Term t)
|
|
{
|
|
return (int) (IsApplTerm(t) && ((FunctorOfTerm(t) <= FunctorDouble) && (FunctorOfTerm(t) >= FunctorLongInt)));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN int IsNumTerm(Term);
|
|
|
|
inline EXTERN int IsNumTerm(Term t)
|
|
{
|
|
return (int) ((IsIntTerm(t) || IsLargeNumTerm(t)));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Int IsAtomicTerm(Term);
|
|
|
|
inline EXTERN Int IsAtomicTerm(Term t)
|
|
{
|
|
return (Int) (IsAtomOrIntTerm(t) || IsLargeNumTerm(t));
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Int IsExtensionFunctor(Functor);
|
|
|
|
inline EXTERN Int IsExtensionFunctor(Functor f)
|
|
{
|
|
return (Int) (f <= FunctorDouble);
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Int IsBlobFunctor(Functor);
|
|
|
|
inline EXTERN Int IsBlobFunctor(Functor f)
|
|
{
|
|
return (Int) ((f <= FunctorDouble && f >= FunctorDBRef));
|
|
}
|
|
|
|
|
|
|
|
inline EXTERN Int IsPrimitiveTerm(Term);
|
|
|
|
inline EXTERN Int IsPrimitiveTerm(Term t)
|
|
{
|
|
return (Int) ((IsAtomOrIntTerm(t) || (IsApplTerm(t) && IsBlobFunctor(FunctorOfTerm(t)))));
|
|
}
|
|
|
|
|
|
|
|
#ifdef TERM_EXTENSIONS
|
|
|
|
|
|
inline EXTERN Int IsAttachFunc(Functor);
|
|
|
|
inline EXTERN Int IsAttachFunc(Functor f)
|
|
{
|
|
return (Int) (FALSE);
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Int IsAttachedTerm(Term);
|
|
|
|
inline EXTERN Int IsAttachedTerm(Term t)
|
|
{
|
|
return (Int) ((IsVarTerm(t) && VarOfTerm(t) < H0) );
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN exts ExtFromCell(CELL *);
|
|
|
|
inline EXTERN exts ExtFromCell(CELL * pt)
|
|
{
|
|
return (exts) (pt[1]);
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
|
|
inline EXTERN Int IsAttachFunc(Functor);
|
|
|
|
inline EXTERN Int IsAttachFunc(Functor f)
|
|
{
|
|
return (Int) (FALSE);
|
|
}
|
|
|
|
|
|
|
|
|
|
inline EXTERN Int IsAttachedTerm(Term);
|
|
|
|
inline EXTERN Int IsAttachedTerm(Term t)
|
|
{
|
|
return (Int) (FALSE);
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif
|
|
|
|
EXTERN int STD_PROTO(unify_extension,(Functor, CELL, CELL *, CELL));
|
|
|
|
inline EXTERN int
|
|
unify_extension(Functor f, CELL d0, CELL *pt0, CELL d1)
|
|
{
|
|
switch(BlobOfFunctor(f)) {
|
|
case db_ref_e:
|
|
return (d0 == d1);
|
|
case long_int_e:
|
|
return(pt0[1] == RepAppl(d1)[1]);
|
|
#ifdef USE_GMP
|
|
case big_int_e:
|
|
return (mpz_cmp(BigIntOfTerm(d0),BigIntOfTerm(d1)) == 0);
|
|
#endif /* USE_GMP */
|
|
case double_e:
|
|
{
|
|
CELL *pt1 = RepAppl(d1);
|
|
return (pt0[1] == pt1[1]
|
|
#if SIZEOF_DOUBLE == 2*SIZEOF_LONG_INT
|
|
&& pt0[2] == pt1[2]
|
|
#endif
|
|
);
|
|
}
|
|
}
|
|
return(FALSE);
|
|
}
|
|
|