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7f918cf1 CE |
1 | (* Copyright (C) 1999-2006 Henry Cejtin, Matthew Fluet, Suresh |
2 | * Jagannathan, and Stephen Weeks. | |
3 | * Copyright (C) 1997-2000 NEC Research Institute. | |
4 | * | |
5 | * MLton is released under a BSD-style license. | |
6 | * See the file MLton-LICENSE for details. | |
7 | *) | |
8 | ||
9 | functor StringComparisons (type t | |
10 | val compare: t * t -> order) = | |
11 | struct | |
12 | fun < (x, y) = | |
13 | (case compare (x, y) of | |
14 | LESS => true | |
15 | | _ => false) | |
16 | fun <= (x, y) = | |
17 | (case compare (x, y) of | |
18 | GREATER => false | |
19 | | _ => true) | |
20 | fun > (x, y) = | |
21 | (case compare (x, y) of | |
22 | GREATER => true | |
23 | | _ => false) | |
24 | fun >= (x, y) = | |
25 | (case compare (x, y) of | |
26 | LESS => false | |
27 | | _ => true) | |
28 | end |