cf_id

    OpenVMS usage:identifier
    type:         longword integer (unsigned)
    access:       modify
    mechanism:    by reference
    Address of a longword used by NCS to identify a conversion
    function. The calling program must ensure that the longword
    contains 0 before invoking the NCS$GET_CF routine because the
    routine stores a nonzero value in the longword. The nonzero value
    identifies the conversion function. All subsequent calls to the
    NCS$CONVERT routine and the call to the NCS$END_CF routine to
    terminate the conversion function pass the longword identifier.
    When it completes the conversion, the NCS$END_CF routine releases
    the memory used to store the conversion function and sets the
    value of the longword identifier to 0.

    The conversion function identifier enhances modular programming
    and permits concurrent use of multiple conversion functions
    within a program.

    The calling program should not attempt to interpret the contents
    of the longword identifier.

    The cf_id argument is required.

 cfname

    OpenVMS usage:char_string
    type:         character string
    access:       read only
    mechanism:    by descriptor
    Name of the conversion function being retrieved.

 librar

    OpenVMS usage:char_string
    type:         character string
    access:       read only
    mechanism:    by descriptor
    Name of the library where the conversion function is stored.