The following expression violates the syntax but is not diagnosed and rejected with -pedantic-errors, for C90 or C99:
extern int x;
#if #foo
#endif
--
Summary: Invalid syntax in PP expressions not diagnosed in strict
mode
Product: gcc
Version: 4.1.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: preprocessor
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: neil at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35312
