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Issue #9530: Fix undefined behaviour due to signed overflow in testcapi_long.h.

This commit is contained in:
Mark Dickinson 2011-11-19 17:58:15 +00:00
parent 895d181128
commit b96172e2cf
1 changed files with 1 additions and 2 deletions
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3
Modules/testcapi_long.h
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@ -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.