NAME
        MaxCli -- returns the highest CLI process number possibly in use (V36)

   SYNOPSIS
        number = MaxCli()
        D0

        long maxcli(void)

   FUNCTION
        Returns the highest CLI number that may be in use.  CLI numbers are
        reused, and are usually as small as possible.  To find all CLIs, scan
        using findcliproc() from 1 to maxcli().  the number returned by
        MaxCli() may change as processes are created and destroyed.

   RESULT
        number - The highest CLI number that _may_ be in use.

   SEE ALSO
        findcliproc(), cli()