I imagine a bitfield which does not specify 'signed' or 'unsigned'
will often be a bug in user code - maybe the programmer did not
know or did not remember that 'int i:3;' can be unsigned.
I suggest a warning for that in user code. Maybe included in
-Wextra, but I cannot guess how much such correct code is around.
The warning should be quiet about system headers, which may know
how the system compiler treats such bitfields.
--
Summary: Suggestion: -Wsignless-bitfields
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: h dot b dot furuseth at usit dot uio dot no
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40530
