1 | #Region "Microsoft.VisualBasic::0e217d850406a5e9fbd43243f8f810c4, Microsoft.VisualBasic.Core\Language\Language\C\RandomNumbers.vb" |
2 | |
3 | ' Author: |
4 | ' |
5 | ' asuka (amethyst.asuka@gcmodeller.org) |
6 | ' xie (genetics@smrucc.org) |
7 | ' xieguigang (xie.guigang@live.com) |
8 | ' |
9 | ' Copyright (c) 2018 GPL3 Licensed |
10 | ' |
11 | ' |
12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
13 | ' |
14 | ' |
15 | ' This program is free software: you can redistribute it and/or modify |
16 | ' it under the terms of the GNU General Public License as published by |
17 | ' the Free Software Foundation, either version 3 of the License, or |
18 | ' (at your option) any later version. |
19 | ' |
20 | ' This program is distributed in the hope that it will be useful, |
21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
23 | ' GNU General Public License for more details. |
24 | ' |
25 | ' You should have received a copy of the GNU General Public License |
26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
27 | |
28 | |
29 | |
30 | ' /********************************************************************************/ |
31 | |
32 | ' Summaries: |
33 | |
34 | ' Module RandomNumbers |
35 | ' |
36 | ' Constructor: (+1 Overloads) Sub New |
37 | ' |
38 | ' Function: rand, random |
39 | ' |
40 | ' Sub: randomize, srand |
41 | ' |
42 | ' |
43 | ' /********************************************************************************/ |
44 | |
45 | #End Region |
46 | |
47 | '---------------------------------------------------------------------------------------- |
48 | ' Copyright © 2006 - 2012 Tangible Software Solutions Inc. |
49 | ' This class can be used by anyone provided that the copyright notice remains intact. |
50 | ' ' This class provides the ability to simulate the behavior of the C/C++ functions for |
51 | ' generating random numbers, using the .NET Framework System.Random class. |
52 | ' 'rand' converts to the parameterless overload of NextNumber |
53 | ' 'random' converts to the single-parameter overload of NextNumber |
54 | ' 'randomize' converts to the parameterless overload of Seed |
55 | ' 'srand' converts to the single-parameter overload of Seed |
56 | '---------------------------------------------------------------------------------------- |
57 | |
58 | Namespace Language.C |
59 | |
60 | ''' <summary> |
61 | ''' This class provides the ability to simulate the behavior of the C/C++ functions for |
62 | ''' generating random numbers, using the .NET Framework <see cref="System.Random"/> class. |
63 | ''' |
64 | ''' + ``rand`` converts to the parameterless overload of NextNumber |
65 | ''' + ``random`` converts to the single-parameter overload of NextNumber |
66 | ''' + ``randomize`` converts to the parameterless overload of Seed |
67 | ''' + ``srand`` converts to the single-parameter overload of Seed |
68 | ''' </summary> |
69 | Public Module RandomNumbers |
70 | |
71 | Dim r As Random |
72 | |
73 | Sub New() |
74 | Call randomize() |
75 | End Sub |
76 | |
77 | ''' <summary> |
78 | ''' <see cref="System.Random.Next"/>.(线程安全的函数) |
79 | ''' </summary> |
80 | ''' <returns></returns> |
81 | Public Function rand() As Integer |
82 | SyncLock r |
83 | Return r.[Next]() |
84 | End SyncLock |
85 | End Function |
86 | |
87 | ''' <summary> |
88 | ''' <see cref="System.Random.Next(Integer)"/>.(线程安全的函数) |
89 | ''' </summary> |
90 | ''' <param name="ceiling"></param> |
91 | ''' <returns></returns> |
92 | Public Function random(ceiling As Integer) As Integer |
93 | SyncLock r |
94 | Return r.[Next](ceiling) |
95 | End SyncLock |
96 | End Function |
97 | |
98 | Public Sub randomize() |
99 | r = New Random(Now.Millisecond) |
100 | End Sub |
101 | |
102 | Public Sub srand(seed__1 As Integer) |
103 | r = New Random(seed__1) |
104 | End Sub |
105 | End Module |
106 | End Namespace |