/sys$common/syshlp/helplib.hlb CC, Messages, UNINIT3  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        Variable "<var>"<declared in> is fetched but not
                initialized<inlineinfo>.  And there may be other such
                fetches of this field that have not been reported in
                this compilation.

 Description    The specified member of a struct variable has been
                used without being set.  This might not have been
                what you intended.  The algorithms that detect this
                situation only report it once for a given field, and
                not necessarily at the first use of the uninitialized
                value.

 User Action    Provide the struct member with a value before the
                variable is used.  If you only provide a value for
                the use reported here, you may find that when you
                recompile your program another uninitialized use is
                detected.  It is best to initialize variables as
                close as possible to the point of declaration.