classification
Title: Integer overflow on hex()
Type: Stage: resolved
Components: Versions:
process
Status: closed Resolution: not a bug
Dependencies: Superseder:
Assigned To: Nosy List: pabstersac, ztane
Priority: normal Keywords:

Created on 2016-07-18 06:14 by pabstersac, last changed 2016-07-18 06:26 by serhiy.storchaka. This issue is now closed.

Messages (2)
msg270710 - (view) Author: pablo sacristan (pabstersac) Date: 2016-07-18 06:14
There is an integer overflow on hex() because python incorrectly checks the length of the value to return overflow message if it were too big.
hex(0xFFFFFFFFFFFFFFF+100000**8000000000)
That line will freeze python until you restart it, which is the same thing as crashing python.
Hope it helps ;)
msg270712 - (view) Author: Antti Haapala (ztane) * Date: 2016-07-18 06:22
Note that this has nothing to do with `hex()` function. The part that is problem here is 100000**8000000000, which takes ages to compute. You can interrupt it with Ctrl-C.
History
Date User Action Args
2016-07-18 06:26:15serhiy.storchakasetstatus: open -> closed
resolution: not a bug
stage: resolved
2016-07-18 06:22:06ztanesetnosy: + ztane
messages: + msg270712
2016-07-18 06:14:00pabstersaccreate