On 21 November 2007 15:43, Samuel Thibault wrote: > Ok, so cygwin has it too. It's fixed in HEAD, see > http://www.nabble.com/-Bug-c-34130---New%3A-the-builtin-abs%28%29-gives-wrong- result-when-used-in-some-expression-tf4824981.html#a13808833
Now why didn't you just say "PR34130" in the first place? Yep, fixed on HEAD certainly wouldn't mean "fixed in a couple of years' old release version"! Interesting: http://gcc.gnu.org/viewcvs/trunk/gcc/fold-const.c?view=log&pathrev=130258 Revision 91373 - (view) (download) - [select for diffs] Modified Sat Nov 27 10:13:56 2004 UTC (2 years, 11 months ago) by jakub File length: 352911 byte(s) Diff to previous 91170 (colored) * fold-const.c (extract_muldiv_1) <case ABS_EXPR>: If ctype is unsigned and type signed, build ABS_EXPR with signed_type (ctype) and only afterwards convert to ctype. That's probably where it got introduced. I could always backport the fix to 3.4.4 and spin a fresh release, and to be fair, I wasn't planning to, but that's a scary enough bug that I feel like I want to. cheers, DaveK -- Can't think of a witty .sigline today.... -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
