blob: 2a75d68923a604c042121fbba6043f6685503808 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-04, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
** $Id$
\* */
package scala;
/** A trait for totally ordered data.
*/
trait Ordered[+a] {
/** Result of comparing `this' with operand `that'.
* returns `x' where
* <code>x < 0</code> iff <code>this < that</code>
* <code>x == 0</code> iff <code>this == that</code>
* <code>x > 0</code> iff <code>this > that</code>
*/
def compareTo [b >: a <% Ordered[b]](that: b): int;
def < [b >: a <% Ordered[b]](that: b): boolean = (this compareTo that) < 0;
def > [b >: a <% Ordered[b]](that: b): boolean = (this compareTo that) > 0;
def <= [b >: a <% Ordered[b]](that: b): boolean = (this compareTo that) <= 0;
def >= [b >: a <% Ordered[b]](that: b): boolean = (this compareTo that) >= 0;
}
|
