Change some my_bool in C++ classes and a few functions to bool to detect wrong usage of bool/my_bool.

Fix some bugs where we stored values other than 0 or 1 in my_bool
Fixed some compiler warnings


client/mysql.cc:
  Changed interrupted_query from my_bool to int, as we stored 2 in it.
client/mysqladmin.cc:
  Changed return variable type to same type as function value type
client/mysqltest.cc:
  Changed 'found' to int as we store other values than 0 or 1 into it
  Changed type for parameter of set_reconnect() to match usage.
extra/libevent/evbuffer.c:
  Added __attribute__((unused))
extra/libevent/event.c:
  Added __attribute__((unused))
extra/libevent/signal.c:
  Added __attribute__((unused))
sql/event_data_objects.h:
  my_bool -> bool
sql/event_db_repository.cc:
  my_bool -> bool
sql/event_db_repository.h:
  my_bool -> bool
sql/event_parse_data.h:
  my_bool -> bool
sql/events.cc:
  my_bool -> bool
sql/events.h:
  my_bool -> bool
sql/field.cc:
  my_bool -> bool
sql/field.h:
  my_bool -> bool
sql/hash_filo.h:
  my_bool -> bool
sql/item.cc:
  my_bool -> bool
sql/item.h:
  my_bool -> bool
sql/item_cmpfunc.h:
  my_bool -> bool
  Changed result_for_null_param from my_bool to int as we stored -1 in it.
sql/item_func.cc:
  my_bool -> bool
  Modified udf wrapper functions so that the UDF functions would continue to use my_bool. (To keep compatibility with UDF:s)
sql/item_func.h:
  my_bool -> bool
sql/item_subselect.h:
  my_bool -> bool
sql/item_sum.cc:
  Modified udf wrapper functions so that the UDF functions would continue to use my_bool. (To keep compatibility with UDF:s)
sql/parse_file.h:
  my_bool -> bool
sql/rpl_mi.h:
  my_bool -> bool
sql/sp_rcontext.h:
  my_bool -> bool
sql/sql_analyse.h:
  my_bool -> bool
sql/sql_base.cc:
  Change some assignments so that we don't initialize bool variables with int's.
sql/sql_bitmap.h:
  my_bool -> bool
sql/sql_cache.cc:
  my_bool -> bool
sql/sql_cache.h:
  my_bool -> bool
sql/sql_class.h:
  my_bool -> bool
sql/sql_insert.cc:
  Change some assignments so that we don't initialize bool variables with int's.
sql/sql_prepare.cc:
  my_bool -> bool
sql/table.h:
  my_bool -> bool
storage/maria/ma_check.c:
  Removed duplicate assignment
strings/decimal.c:
  Fixed wrong variable usage.
  Don't do complex arithmetic on bool when simple works.

1 files changed, 4 insertions, 3 deletions

diff --git a/strings/decimal.c b/strings/decimal.c
index 631750cf219..a1c02cb68bd 100644
--- a/strings/decimal.c
+++ b/strings/decimal.c
@@ -346,7 +346,7 @@ int decimal2string(decimal_t *from, char *to, int *to_len,
   char *s=to;
   dec1 *buf, *buf0=from->buf, tmp;
 
-  DBUG_ASSERT(*to_len >= 2+from->sign);
+  DBUG_ASSERT(*to_len >= 2+ (int) from->sign);
 
   /* removing leading zeroes */
   buf0= remove_leading_zeroes(from, &intg);
@@ -1801,7 +1801,8 @@ static int do_sub(decimal_t *from1, decimal_t *from2, decimal_t *to)
   int intg1=ROUND_UP(from1->intg), intg2=ROUND_UP(from2->intg),
       frac1=ROUND_UP(from1->frac), frac2=ROUND_UP(from2->frac);
   int frac0=max(frac1, frac2), error;
-  dec1 *buf1, *buf2, *buf0, *stop1, *stop2, *start1, *start2, carry=0;
+  dec1 *buf1, *buf2, *buf0, *stop1, *stop2, *start1, *start2;
+  my_bool carry=0;
 
   /* let carry:=1 if from2 > from1 */
   start1=buf1=from1->buf; stop1=buf1+intg1;
@@ -1869,7 +1870,7 @@ static int do_sub(decimal_t *from1, decimal_t *from2, decimal_t *to)
     swap_variables(dec1 *,start1, start2);
     swap_variables(int,intg1,intg2);
     swap_variables(int,frac1,frac2);
-    to->sign= 1 - to->sign;
+    to->sign= !to->sign;
   }
 
   FIX_INTG_FRAC_ERROR(to->len, intg1, frac0, error);