[LLVMbugs] [Bug 3939] New: CPP grammar violation not diagnosed

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=3939

           Summary: CPP grammar violation not diagnosed
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: NetBSD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: preprocessor
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: neil at daikokuya.co.uk
                CC: llvmbugs at cs.uiuc.edu


The following violates the CPP grammar with #elif.  (GCC was only recently
fixed to reject this).

extern int x;
#if 1
#elif
#endif


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