| commit | b96172e2cfbbd047959cb8b2a5b84b0b32388842 | [log] [tgz] |
|---|---|---|
| author | Mark Dickinson <mdickinson@enthought.com> | Sat Nov 19 17:58:15 2011 +0000 |
| committer | Mark Dickinson <mdickinson@enthought.com> | Sat Nov 19 17:58:15 2011 +0000 |
| tree | 86becc51a913d1aee9d93dd27e99f023c4c0faec | |
| parent | 895d181128c23982a71027fded204dc41b4e0e7d [diff] [blame] |
Issue #9530: Fix undefined behaviour due to signed overflow in testcapi_long.h.
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 @@ 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.