VMS Help CC, Messages, UNINIT4  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        Byte offsets <start> to <end> of "<var>"<declared in>
                are 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 byte offsets of a variable have 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 full variable with values 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.