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| author | Mark Dickinson <mdickinson@enthought.com> | 2011-11-19 17:58:15 (GMT) |
|---|---|---|
| committer | Mark Dickinson <mdickinson@enthought.com> | 2011-11-19 17:58:15 (GMT) |
| commit | b96172e2cfbbd047959cb8b2a5b84b0b32388842 (patch) | |
| tree | 86becc51a913d1aee9d93dd27e99f023c4c0faec /Modules | |
| parent | 895d181128c23982a71027fded204dc41b4e0e7d (diff) | |
| download | cpython-b96172e2cfbbd047959cb8b2a5b84b0b32388842.zip cpython-b96172e2cfbbd047959cb8b2a5b84b0b32388842.tar.gz cpython-b96172e2cfbbd047959cb8b2a5b84b0b32388842.tar.bz2 | |
Issue #9530: Fix undefined behaviour due to signed overflow in testcapi_long.h.
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/testcapi_long.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/Modules/testcapi_long.h b/Modules/testcapi_long.h index 5784452..6bddad7 100644 --- a/Modules/testcapi_long.h +++ b/Modules/testcapi_long.h @@ -33,8 +33,7 @@ TESTNAME(PyObject *error(const char*)) unsigned TYPENAME uin, uout; /* For 0, 1, 2 use base; for 3, 4, 5 use -base */ - uin = j < 3 ? base - : (unsigned TYPENAME)(-(TYPENAME)base); + uin = j < 3 ? base : 0U - base; /* For 0 & 3, subtract 1. * For 1 & 4, leave alone. |