The code in c-lex.c that handles string concatenation allows weird,
and from what I can tell invalid, ObjC string concatentations.
In particular it allows any number of "@"s, and trailing "@"s.
E.g., it treats these as valid strings:
"foo" @@@@@ "bar"
@"foo" @@@@@
--
Summary: compiler accepts invalid string concatenation
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: objc
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tromey at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34033
