------- Comment #1 from pinskia at gcc dot gnu dot org 2006-12-18 09:39 ------- No, this is undefined code. since n is a signed type, and the starting n is 1 and it is only multiplied by 2, then it can only be postive and never equal to 0 because overflow for signed types is undefined.
-- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30245