module Integer_desc:Exports asig..end
hash and cmp function for Mapred_sorters.generic_sorter.
      The functions are defined so that the records are sorted in an
      descending way by key. The key is interpreted as integer (digits
      0 to 9, possibly prefixed by + or -). Characters violating the
      integer syntax are silently ignored. (Note that the integer range
      is not restricted!)val hash : string -> int -> int -> intval cmp : string -> int -> int -> string -> int -> int -> int