http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54014
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-18 12:21:06 UTC --- (In reply to comment #2) > I do not agree. > abs(-2147483648) returns -2147483648. > > May be is odd but is how the implementation of abs works. Isn't it? abs(-2147483648) invokes undefined behavior, similar to -(-2147483648), according to the C standard.
