diff options
Diffstat (limited to 'src/include/port/pg_bitutils.h')
| -rw-r--r-- | src/include/port/pg_bitutils.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/include/port/pg_bitutils.h b/src/include/port/pg_bitutils.h new file mode 100644 index 00000000000..148c5550573 --- /dev/null +++ b/src/include/port/pg_bitutils.h @@ -0,0 +1,26 @@ +/*------------------------------------------------------------------------ - + * + * pg_bitutils.h + * miscellaneous functions for bit-wise operations. + * + * + * Portions Copyright(c) 2019, PostgreSQL Global Development Group + * + * src/include/port/pg_bitutils.h + * + *------------------------------------------------------------------------ - + */ + +#ifndef PG_BITUTILS_H +#define PG_BITUTILS_H + +extern int (*pg_popcount32) (uint32 word); +extern int (*pg_popcount64) (uint64 word); +extern int (*pg_rightmost_one32) (uint32 word); +extern int (*pg_rightmost_one64) (uint64 word); +extern int (*pg_leftmost_one32) (uint32 word); +extern int (*pg_leftmost_one64) (uint64 word); + +extern uint64 pg_popcount(const char *buf, int bytes); + +#endif /* PG_BITUTILS_H */ |