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my_strtod fixes:

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sigsegv protection (exp overflow)
don't return inf!
use errno=EOVERFLOW to signal an overflow (as my_strntod uses errno anyway)
if errno will be too slow, my_strtod can be changed to return overflow status in a parameter (like my_strntod does)
This commit is contained in:
serg@serg.mylan
2004-03-14 17:25:20 +01:00
parent 42c19ada56
commit ded8fa56eb
4 changed files with 16 additions and 13 deletions
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10
mysql-test/r/insert.result
View File

@ -169,7 +169,6 @@ set @value= "1e+1111111111a";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double ' at row 1
Warning 1265 Data truncated for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1265 Data truncated for column 'f_double_7_2 ' at row 1
@ -177,7 +176,6 @@ Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1265 Data truncated for column 'f_float_4_3 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
Warning 1265 Data truncated for column 'f_double_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_u ' at row 1
Warning 1265 Data truncated for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1265 Data truncated for column 'f_double_15_1_u ' at row 1
@ -199,7 +197,6 @@ set @value= "-1e+1111111111a";
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1265 Data truncated for column 'f_double ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double ' at row 1
Warning 1265 Data truncated for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1265 Data truncated for column 'f_double_7_2 ' at row 1
@ -228,17 +225,15 @@ f_float_3_1_u 0.0
set @value= 1e+1111111111;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Data truncated, out of range for column 'f_double ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 6
original_value inf
original_value 1.7976931348623e+308
f_double 1.79769313486232e+308
f_float 3.40282e+38
f_double_7_2 99999.99
@ -250,7 +245,6 @@ f_float_3_1_u 99.9
set @value= -1e+1111111111;
insert into t1 values(null,@value,@value,@value,@value,@value,@value,@value,@value,@value);
Warnings:
Warning 1264 Data truncated, out of range for column 'f_double ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float ' at row 1
Warning 1264 Data truncated, out of range for column 'f_double_7_2 ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_4_3 ' at row 1
@ -260,7 +254,7 @@ Warning 1264 Data truncated, out of range for column 'f_double_15_1_u ' at row 1
Warning 1264 Data truncated, out of range for column 'f_float_3_1_u ' at row 1
select * from t1 where `number `=last_insert_id();
number 7
original_value -inf
original_value -1.7976931348623e+308
f_double -1.79769313486232e+308
f_float -3.40282e+38
f_double_7_2 -99999.99

2
mysql-test/r/mysqldump.result
View File

@ -46,8 +46,6 @@ UNLOCK TABLES;
DROP TABLE t1;
CREATE TABLE t1 (a double);
INSERT INTO t1 VALUES (-9e999999);
Warnings:
Warning 1264 Data truncated, out of range for column 'a' at row 1
/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT, CHARACTER_SET_CLIENT=utf8 */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;