[Bug c++/66839] New: g++ accepts NSDMI with -std=c++98 when the intializer is a macro defined in a standard header

[ensadc at mailnesia dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66839

            Bug ID: 66839
           Summary: g++ accepts NSDMI with -std=c++98 when the intializer
                    is a macro defined in a standard header
           Product: gcc
           Version: 4.9.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ensadc at mailnesia dot com
  Target Milestone: ---

The following code compiles with no warnings or errors even with `-std=c++98
-pedantic-errors` on.

====================

#include <stddef.h>
struct A {
    char* p = NULL;
};

int main() {}

====================

The following is corrctly rejected.

====================

#define NULL 0
struct A {
    char* p = NULL;
};

int main() {}

====================