74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
#include <stdlib.h>
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#include <ctype.h>
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#include <errno.h>
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#include <float.h> /* faked on sunos4 */
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#include <math.h>
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#include "postgres.h"
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#ifdef HAVE_LIMITS_H
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#include <limits.h>
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#ifndef MAXINT
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#define MAXINT INT_MAX
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#endif
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#else
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#ifdef HAVE_VALUES_H
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#include <values.h>
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#endif
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#endif
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#include "fmgr.h"
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#include "utils/timestamp.h"
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#include "utils/builtins.h"
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#define HEXDIG(z) (z)<10 ? ((z)+'0') : ((z)-10+'A')
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/* Modeled on struct varlena from postgres.h, bu data type is bits8 */
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struct varbita
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{
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int32 vl_len;
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bits8 vl_dat[1];
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};
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#define BITSPERBYTE 8
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#define VARBITHDRSZ sizeof(int32)
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/* Number of bits in this bit string */
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#define VARBITLEN(PTR) (((struct varbita *)VARDATA(PTR))->vl_len)
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/* Pointer tp the first byte containing bit string data */
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#define VARBITS(PTR) (((struct varbita *)VARDATA(PTR))->vl_dat)
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/* Number of bytes in the data section of a bit string */
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#define VARBITBYTES(PTR) (VARSIZE(PTR) - VARHDRSZ - VARBITHDRSZ)
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/* Padding of the bit string at the end */
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#define VARBITPAD(PTR) (VARBITBYTES(PTR)*BITSPERBYTE - VARBITLEN(PTR))
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/* Number of bytes needed to store a bit string of a given length */
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#define VARBITDATALEN(BITLEN) (BITLEN/BITSPERBYTE + \
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(BITLEN%BITSPERBYTE > 0 ? 1 : 0) + \
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VARHDRSZ + VARBITHDRSZ)
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/* pointer beyond the end of the bit string (like end() in STL containers) */
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#define VARBITEND(PTR) ((bits8 *) (PTR + VARSIZE(PTR)))
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/* Mask that will cover exactly one byte, i.e. BITSPERBYTE bits */
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#define BITMASK 0xFF
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#define BITHIGH 0x80
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bits8 *zpbitin(char *s, int dummy, int32 atttypmod);
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char *zpbitout(bits8 *s);
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char *zpbitsout(bits8 *s);
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bits8 *varbitin(char *s, int dummy, int32 atttypmod);
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bool biteq(bits8 *arg1, bits8 *arg2);
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bool bitne(bits8 *arg1, bits8 *arg2);
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bool bitge(bits8 *arg1, bits8 *arg2);
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bool bitgt(bits8 *arg1, bits8 *arg2);
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bool bitle(bits8 *arg1, bits8 *arg2);
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bool bitlt(bits8 *arg1, bits8 *arg2);
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int bitcmp(bits8 *arg1, bits8 *arg2);
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bits8 *bitand(bits8 *arg1, bits8 *arg2);
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bits8 *bitor(bits8 *arg1, bits8 *arg2);
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bits8 *bitxor(bits8 *arg1, bits8 *arg2);
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bits8 *bitnot(bits8 *arg);
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bits8 *bitshiftright(bits8 *arg, int shft);
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bits8 *bitshiftleft(bits8 *arg, int shft);
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bits8 *bitcat(bits8 *arg1, bits8 *arg2);
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bits8 *bitsubstr(bits8 *arg, int32 s, int32 l);
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