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| author | unknown <mkindahl@dl145h.mysql.com> | 2007-12-19 18:51:46 +0100 |
|---|---|---|
| committer | unknown <mkindahl@dl145h.mysql.com> | 2007-12-19 18:51:46 +0100 |
| commit | 047ec78f2c0cddb8761641a54aea73a79253fb2d (patch) | |
| tree | b4347d5d5af8e563fdef89ebf94232b92415803c /include | |
| parent | 7213ca204dc3d10f751ca2507321eede1238d6cb (diff) | |
| parent | 267b00d6820504f9db735593e144b274bfc073a4 (diff) | |
| download | mariadb-git-047ec78f2c0cddb8761641a54aea73a79253fb2d.tar.gz | |
Merge dl145h.mysql.com:/data0/mkindahl/mysql-5.1-rpl
into dl145h.mysql.com:/data0/mkindahl/mysql-5.1-rpl-merge
mysql-test/include/have_multi_ndb.inc:
Auto merged
mysql-test/lib/mtr_cases.pl:
Auto merged
mysql-test/lib/mtr_report.pl:
Auto merged
mysql-test/suite/binlog/r/binlog_stm_blackhole.result:
Auto merged
mysql-test/suite/rpl_ndb/r/rpl_row_basic_7ndb.result:
Auto merged
mysql-test/suite/rpl_ndb/t/disabled.def:
Auto merged
sql/ha_ndbcluster_binlog.cc:
Auto merged
sql/log.cc:
Auto merged
sql/log_event_old.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/rpl_rli.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/set_var.h:
Auto merged
sql/slave.cc:
Auto merged
sql/sql_binlog.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_string.cc:
Auto merged
mysql-test/Makefile.am:
SCCS merged
mysql-test/mysql-test-run.pl:
Manual merge.
mysql-test/suite/binlog/t/disabled.def:
Manual merge.
mysql-test/suite/rpl/r/rpl_row_tabledefs_2myisam.result:
Manual merge.
mysql-test/suite/rpl/r/rpl_row_tabledefs_3innodb.result:
Manual merge.
sql/log_event.cc:
Manual merge.
,
Diffstat (limited to 'include')
| -rw-r--r-- | include/my_bitmap.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/my_bitmap.h b/include/my_bitmap.h index ab69b2d671d..78642df3362 100644 --- a/include/my_bitmap.h +++ b/include/my_bitmap.h @@ -159,6 +159,22 @@ static inline my_bool bitmap_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2) #define bitmap_set_all(MAP) \ (memset((MAP)->bitmap, 0xFF, 4*no_words_in_map((MAP)))) +/** + check, set and clear a bit of interest of an integer. + + If the bit is out of range @retval -1. Otherwise + bit_is_set @return 0 or 1 reflecting the bit is set or not; + bit_do_set @return 1 (bit is set 1) + bit_do_clear @return 0 (bit is cleared to 0) +*/ + +#define bit_is_set(I,B) (sizeof(I) * CHAR_BIT > (B) ? \ + (((I) & (ULL(1) << (B))) == 0 ? 0 : 1) : -1) +#define bit_do_set(I,B) (sizeof(I) * CHAR_BIT > (B) ? \ + ((I) |= (ULL(1) << (B)), 1) : -1) +#define bit_do_clear(I,B) (sizeof(I) * CHAR_BIT > (B) ? \ + ((I) &= ~(ULL(1) << (B)), 0) : -1) + #ifdef __cplusplus } #endif |