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-rw-r--r--sql/my_decimal.cc12
1 files changed, 7 insertions, 5 deletions
diff --git a/sql/my_decimal.cc b/sql/my_decimal.cc
index 72505054902..318cdfd10c4 100644
--- a/sql/my_decimal.cc
+++ b/sql/my_decimal.cc
@@ -13,6 +13,7 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+#include <my_global.h>
#include "sql_priv.h"
#include <time.h>
@@ -98,10 +99,11 @@ int my_decimal2string(uint mask, const my_decimal *d,
UNSIGNED. Hence the buffer for a ZEROFILLed value is the length
the user requested, plus one for a possible decimal point, plus
one if the user only wanted decimal places, but we force a leading
- zero on them. Because the type is implicitly UNSIGNED, we do not
- need to reserve a character for the sign. For all other cases,
- fixed_prec will be 0, and my_decimal_string_length() will be called
- instead to calculate the required size of the buffer.
+ zero on them, plus one for the '\0' terminator. Because the type
+ is implicitly UNSIGNED, we do not need to reserve a character for
+ the sign. For all other cases, fixed_prec will be 0, and
+ my_decimal_string_length() will be called instead to calculate the
+ required size of the buffer.
*/
int length= (fixed_prec
? (fixed_prec + ((fixed_prec == fixed_dec) ? 1 : 0) + 1)
@@ -331,7 +333,7 @@ print_decimal_buff(const my_decimal *dec, const uchar* ptr, int length)
const char *dbug_decimal_as_string(char *buff, const my_decimal *val)
{
- int length= DECIMAL_MAX_STR_LENGTH;
+ int length= DECIMAL_MAX_STR_LENGTH + 1; /* minimum size for buff */
if (!val)
return "NULL";
(void)decimal2string((decimal_t*) val, buff, &length, 0,0,0);