[Bug preprocessor/28388] New: stringify (#) operator broken

["sabre at nondot dot org" <gcc-bugzilla at gcc dot gnu dot org>]

GCC warns for:

#define A(b) #b
A(\ \\)

but not for:
#define A(b) #b
A(\`\\)

or seemingly any other character but space.  While "\ " is not a valid escape
in a string, neither is \` or \Z.  Either all or none should be warned about. 
Further, the string should not be chopped into the really illegal result:

"\ \"

Which is what A(\ \\) currently preprocesses to with -E.

-Chris


-- 
           Summary: stringify (#) operator broken
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: preprocessor
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sabre at nondot dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28388