Merge elkin@aelkin2.mysql.internal:MySQL/TEAM/FIXES/5.1/bug31609-conflict_detection

into  dl145j.mysql.com:/tmp/andrei/bug31552


mysql-test/extra/rpl_tests/rpl_row_basic.test:
  Auto merged
mysql-test/suite/rpl/r/rpl_row_basic_2myisam.result:
  Auto merged
mysql-test/suite/rpl/r/rpl_row_basic_3innodb.result:
  Auto merged
mysql-test/suite/rpl/r/rpl_row_tabledefs_2myisam.result:
  Auto merged
mysql-test/suite/rpl/r/rpl_row_tabledefs_3innodb.result:
  Auto merged
mysql-test/suite/rpl_ndb/r/rpl_row_basic_7ndb.result:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/set_var.h:
  Auto merged
sql/share/errmsg.txt:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/log_event.cc:
  manual merge

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