bit_len) /* Pointer to the first byte containing bit string data */ #define VARBITS(PTR) (((VarBit *) (PTR))->bit_dat) /* Number of bytes in the data section of a bit string */ #define VARBITBYTES(PTR) (VARSIZE(PTR) - VARHDRSZ - VARBITHDRSZ) /* Padding of the bit string at the end (in bits) */ #define VARBITPAD(PTR) (VARBITBYTES(PTR)*BITS_PER_BYTE - VARBITLEN(PTR)) /* Number of bytes needed to store a bit string of a given length */ #define VARBITTOTALLEN(BITLEN) (((BITLEN) + BITS_PER_BYTE-1)/BITS_PER_BYTE + \ VARHDRSZ + VARBITHDRSZ) /* * Maximum number of bits. Several code sites assume no overflow from * computing bitlen + X; VARBITTOTALLEN() has the largest such X. */ #define VARBITMAXLEN (INT_MAX - BITS_PER_BYTE + 1) /* pointer beyond the end of the bit string (like end() in STL containers) */ #define VARBITEND(PTR) (((bits8 *) (PTR)) + VARSIZE(PTR)) /* Mask that will cover exactly one byte, i.e. BITS_PER_BYTE bits */ #define BITMASK 0xFF extern Datum bit_in(PG_FUNCTION_ARGS); extern Datum bit_out(PG_FUNCTION_ARGS); extern Datum bit_recv(PG_FUNCTION_ARGS); extern Datum bit_send(PG_FUNCTION_ARGS); extern Datum bittypmodin(PG_FUNCTION_ARGS); extern Datum bittypmodout(PG_FUNCTION_ARGS); extern Datum varbit_in(PG_FUNCTION_ARGS); extern Datum varbit_out(PG_FUNCTION_ARGS); extern Datum varbit_recv(PG_FUNCTION_ARGS); extern Datum varbit_send(PG_FUNCTION_ARGS); extern Datum varbittypmodin(PG_FUNCTION_ARGS); extern Datum varbittypmodout(PG_FUNCTION_ARGS); extern Datum bit(PG_FUNCTION_ARGS); extern Datum varbit_transform(PG_FUNCTION_ARGS); extern Datum varbit(PG_FUNCTION_ARGS); extern Datum biteq(PG_FUNCTION_ARGS); extern Datum bitne(PG_FUNCTION_ARGS); extern Datum bitlt(PG_FUNCTION_ARGS); extern Datum bitle(PG_FUNCTION_ARGS); extern Datum bitgt(PG_FUNCTION_ARGS); extern Datum bitge(PG_FUNCTION_ARGS); extern Datum bitcmp(PG_FUNCTION_ARGS); /* avoid the names bitand and bitor, since they are C++ keywords */ extern Datum bit_and(PG_FUNCTION_ARGS); extern Datum bit_or(PG_FUNCTION_ARGS); extern Datum bitxor(PG_FUNCTION_ARGS); extern Datum bitnot(PG_FUNCTION_ARGS); extern Datum bitshiftleft(PG_FUNCTION_ARGS); extern Datum bitshiftright(PG_FUNCTION_ARGS); extern Datum bitcat(PG_FUNCTION_ARGS); extern Datum bitsubstr(PG_FUNCTION_ARGS); extern Datum bitsubstr_no_len(PG_FUNCTION_ARGS); extern Datum bitoverlay(PG_FUNCTION_ARGS); extern Datum bitoverlay_no_len(PG_FUNCTION_ARGS); extern Datum bitlength(PG_FUNCTION_ARGS); extern Datum bitoctetlength(PG_FUNCTION_ARGS); extern Datum bitfromint4(PG_FUNCTION_ARGS); extern Datum bittoint4(PG_FUNCTION_ARGS); extern Datum bitfromint8(PG_FUNCTION_ARGS); extern Datum bittoint8(PG_FUNCTION_ARGS); extern Datum bitposition(PG_FUNCTION_ARGS); extern Datum bitsetbit(PG_FUNCTION_ARGS); extern Datum bitgetbit(PG_FUNCTION_ARGS); #endif