NAME
        VFWritef - write a BCPL formatted string to a file (buffered) (V36)

   SYNOPSIS
        count = VFWritef(fh, fmt, argv)
        D0               D1  D2    D3

        long vfwritef(bptr, strptr, long *)

        count = FWritef(fh, fmt, ...)

        long fwritef(bptr, strptr, ...)

   FUNCTION
        Writes the formatted string and values to the specified file.  This
        routine is assumed to handle all internal buffering so that the
        formatting string and resultant formatted values can be arbitrarily
        long.  The formats are in BCPL form.  This routine is buffered.

        Supported formats are:  (Note x is in base 36!)
                %S  - string (CSTR)
                %Tx - writes a left-justified string in a field at least
                      x bytes long.
                %C  - writes a single character
                %Ox - writes a number in octal, maximum x characters wide
                %Xx - writes a number in hex, maximum x characters wide
                %Ix - writes a number in decimal, maximum x characters wide
                %N  - writes a number in decimal, any length
                %Ux - writes an unsigned number, maximum x characters wide
                %$  - ignore parameter

        Note: 'x' above is actually the character value - '0'.

   INPUTS
        fh    - filehandle to write to
        fmt   - BCPL style formatting string
        argv  - Pointer to array of formatting values

   RESULT
        count - Number of bytes written or -1 for error

   BUGS
        As of V37, VFWritef() does NOT return a valid return value.  In
        order to reduce possible errors, the prototypes supplied for the
        system as of V37 have it typed as VOID.

   SEE ALSO
        vfprintf(), vfprintf(), fputc()