10-300u+10.0l gives erroneous result 4294967016.000000 (instead of -280.0) (in C) If I am not mistaken, binary - and + have the same precedence, left to right associativity.
10-300u correct yields -290, but 10-300u+10.0l = (10-300u)+10.0l gives incorrect result. I believe, if 10-300u=-290, then -290+10.0l gives -280.0l with arithmic promotion to long double. Also, -300u gives -300, yet (long double) (-300) gives 4294966996.000000 This does not seem a correct cast. -- Summary: Erroneous automatic typecasting (unsigned int -> long double) Product: gcc Version: 3.4.3 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: P dot Altena at amolf dot nl CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22079