varbit.h File Reference

#include <limits.h>
#include "fmgr.h"

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Data Structures
struct	VarBit

Macros
#define	PG_GETARG_VARBIT_P(n)   DatumGetVarBitP(PG_GETARG_DATUM(n))
#define	PG_GETARG_VARBIT_P_COPY(n)   DatumGetVarBitPCopy(PG_GETARG_DATUM(n))
#define	PG_RETURN_VARBIT_P(x)   return VarBitPGetDatum(x)
#define	VARBITHDRSZ   sizeof(int32)
#define	VARBITLEN(PTR)   (((VarBit *) (PTR))->bit_len)
#define	VARBITS(PTR)   (((VarBit *) (PTR))->bit_dat)
#define	VARBITBYTES(PTR)   (VARSIZE(PTR) - VARHDRSZ - VARBITHDRSZ)
#define	VARBITPAD(PTR)   (VARBITBYTES(PTR)*BITS_PER_BYTE - VARBITLEN(PTR))
#define	VARBITTOTALLEN(BITLEN)
#define	VARBITMAXLEN   (INT_MAX - BITS_PER_BYTE + 1)
#define	VARBITEND(PTR)   (((bits8 *) (PTR)) + VARSIZE(PTR))
#define	BITMASK   0xFF

Functions
static VarBit *	DatumGetVarBitP (Datum X)
static VarBit *	DatumGetVarBitPCopy (Datum X)
static Datum	VarBitPGetDatum (const VarBit *X)

Macro Definition Documentation

BITMASK

#define BITMASK   0xFF

Definition at line 87 of file varbit.h.

PG_GETARG_VARBIT_P

#define PG_GETARG_VARBIT_P

(

n

)

DatumGetVarBitP(PG_GETARG_DATUM(n))

Definition at line 62 of file varbit.h.

PG_GETARG_VARBIT_P_COPY

#define PG_GETARG_VARBIT_P_COPY

(

n

)

DatumGetVarBitPCopy(PG_GETARG_DATUM(n))

Definition at line 63 of file varbit.h.

PG_RETURN_VARBIT_P

#define PG_RETURN_VARBIT_P

(

x

)

return VarBitPGetDatum(x)

Definition at line 64 of file varbit.h.

VARBITBYTES

#define VARBITBYTES

(

PTR

)

(VARSIZE(PTR) - VARHDRSZ - VARBITHDRSZ)

Definition at line 73 of file varbit.h.

VARBITEND

#define VARBITEND

(

PTR

)

(((bits8 *) (PTR)) + VARSIZE(PTR))

Definition at line 85 of file varbit.h.

VARBITHDRSZ

#define VARBITHDRSZ   sizeof(int32)

Definition at line 67 of file varbit.h.

VARBITLEN

#define VARBITLEN

(

PTR

)

(((VarBit *) (PTR))->bit_len)

Definition at line 69 of file varbit.h.

VARBITMAXLEN

#define VARBITMAXLEN   (INT_MAX - BITS_PER_BYTE + 1)

Definition at line 83 of file varbit.h.

VARBITPAD

#define VARBITPAD

(

PTR

)

(VARBITBYTES(PTR)*BITS_PER_BYTE - VARBITLEN(PTR))

Definition at line 75 of file varbit.h.

VARBITS

#define VARBITS

(

PTR

)

(((VarBit *) (PTR))->bit_dat)

Definition at line 71 of file varbit.h.

VARBITTOTALLEN

#define VARBITTOTALLEN

(

BITLEN

)

Value:

                                 (((BITLEN) + BITS_PER_BYTE-1)/BITS_PER_BYTE + \
                                 VARHDRSZ + VARBITHDRSZ)

Definition at line 77 of file varbit.h.

Function Documentation

DatumGetVarBitP()

static VarBit* DatumGetVarBitP ( Datum  X )

inlinestatic

Definition at line 45 of file varbit.h.

{
    return (VarBit *) PG_DETOAST_DATUM(X);
}

References PG_DETOAST_DATUM.

DatumGetVarBitPCopy()

static VarBit* DatumGetVarBitPCopy ( Datum  X )

inlinestatic

Definition at line 51 of file varbit.h.

{
    return (VarBit *) PG_DETOAST_DATUM_COPY(X);
}

References PG_DETOAST_DATUM_COPY.

VarBitPGetDatum()

static Datum VarBitPGetDatum ( const VarBit *  X )

inlinestatic

Definition at line 57 of file varbit.h.

{
    return PointerGetDatum(X);
}

References PointerGetDatum().

Referenced by bitshiftleft(), and bitshiftright().