(* Copyright (C) 1999-2006 Henry Cejtin, Matthew Fluet, Suresh * Jagannathan, and Stephen Weeks. * Copyright (C) 1997-2000 NEC Research Institute. * * MLton is released under a BSD-style license. * See the file MLton-LICENSE for details. *) functor StringComparisons (type t val compare: t * t -> order) = struct fun < (x, y) = (case compare (x, y) of LESS => true | _ => false) fun <= (x, y) = (case compare (x, y) of GREATER => false | _ => true) fun > (x, y) = (case compare (x, y) of GREATER => true | _ => false) fun >= (x, y) = (case compare (x, y) of LESS => false | _ => true) end