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Fix for bug #30453: String not cast to int correctly.

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Problem:

my_strntoull10rnd_8bit() handled incorrectly cases when the input
string contains a decimal point and is long enough to overrun the
'unsigned long long' type. The position of the decimal point was not
taken into account which resulted in miscalculated numbers and
truncation to appropriate SQL data type limits.

Solution:

Fix my_strntoull10rnd_8bit() to take the position of a decimal point
into account in such cases.


mysql-test/r/insert.result:
  Added a test case for bug #30453.
mysql-test/t/insert.test:
  Added a test case for bug #30453.
strings/ctype-simple.c:
  In cases when the 'unsigned long long' type is overrun by the input
  string and a decimal point has occurred, adjust the 'shift' according to
  the position of the decimal point and skip all subsequent digits.
This commit is contained in:
unknown
2007-10-15 10:34:34 +04:00
parent 06e9aae707
commit 4eec3b087d
3 changed files with 38 additions and 5 deletions
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14
mysql-test/r/insert.result
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@@ -461,4 +461,18 @@ i
2
2
DROP TABLE t1, t2;
CREATE TABLE t1 (c1 INT NOT NULL);
INSERT INTO t1 VALUES(4188.32999999999992724042385816574096679687500),
('4188.32999999999992724042385816574096679687500'), (4188);
SELECT * FROM t1;
c1
4188
4188
4188
CREATE TABLE t2 (c1 BIGINT);
INSERT INTO t2 VALUES('15449237462.0000000000');
SELECT * FROM t2;
c1
15449237462
DROP TABLE t1, t2;
End of 5.0 tests.