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Bug#12537160 ASSERTION FAILED: STOP0 <= &TO->BUF[TO->LEN] WITH LARGE NUMBER.

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Turns out the DBUG_ASSERT added by fix for Bug#11792200 was overly pessimistic:
'stop0' is used in the main loop of do_div_mod, but we only dereference 'buf0'
for div operations, not for mod.


mysql-test/r/func_math.result:
  New test case.
mysql-test/t/func_math.test:
  New test case.
strings/decimal.c:
  Move DBUG_ASSERT down to where we actually dereference the loop pointer.
This commit is contained in:
Tor Didriksen
2011-07-18 09:47:39 +02:00
parent 2d76226f06
commit 1a02a37243
3 changed files with 24 additions and 1 deletions
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10
mysql-test/r/func_math.result
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@ -699,3 +699,13 @@ select (1.175494351E-37 div 1.7976931348623157E+308);
0
Warnings:
Warning 1292 Truncated incorrect DECIMAL value: ''
#
# Bug#12537160 ASSERTION FAILED:
# STOP0 <= &TO->BUF[TO->LEN] WITH LARGE NUMBER.
#
select 999999999999999999999999999999999999999999999999999999999999999999999999999999999 % 0.1 as foo;
foo
0.0
select 999999999999999999999999999999999999999999999999999999999999999999999999999999999 % 0.0 as foo;
foo
NULL