VMS Help TCPIP Services, Programming Interfaces, RPC XDR Routines, xdr_vector  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Serializes and deserializes the elements of a fixed-length array
    (known as a vector).
    Format
      #include  <tcpip$rpcxdr.h>
      bool_t  xdr_vector(XDR *xdrs, char **vecpp, u_int elnum, u_int
              elsize, xdrproc_t elproc);

1 - Arguments

 xdrs
    A pointer to an XDR stream handle created by one of the XDR
    stream handle creation routines.
 vecpp
    A pointer to a pointer to the array.
 elnum
    The number of elements in the array.
 elsize
    The size, in bytes, of each element.
 elproc
    The XDR routine to handle each element.

2 - Description

    A routine that calls elproc to prepare the elements of an array
    for XDR messages.

3 - Return Values

    TRUE               Indicates success.
    FALSE              Indicates failure.