blob: 6591c70334c603a3c026b4f452eb932094f3d54c (
plain)
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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
//
// System.Collections.Comparer
//
// Author:
// Sergey Chaban (serge@wildwestsoftware.com)
//
using System;
using System.Collections;
namespace System.Collections {
[Serializable]
public sealed class Comparer : IComparer {
public static readonly Comparer Default;
// Class constructor
static Comparer ()
{
Default = new Comparer ();
}
// Public instance constructor
private Comparer ()
{
}
// IComparer
public int Compare (object a, object b)
{
if (a == b)
return 0;
else if (a == null)
return -1;
else if (b == null)
return 1;
else if (a is IComparable)
return (a as IComparable).CompareTo (b);
else if (b is IComparable)
return -(b as IComparable).CompareTo (a);
throw new ArgumentException ("Neither a nor b IComparable");
}
}
}
|
