/sys$common/syshlp/helplib.hlb CC, Messages, NOBITFIELD  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> "<expression>" is a bitfield, but occurs in
                a context that precludes bitfields.

 Description    An expression that must not be a bitfield was a
                bitfield.  For example, the operand of the address-of
                operator must not be a bitfield.

 User Action    Modify the expression so that its type is not a
                bitfield type.