108 lines
3.7 KiB
VB.net
108 lines
3.7 KiB
VB.net
#Region "Microsoft.VisualBasic::86bf442bb41ea4eee0d47035b9175240, Microsoft.VisualBasic.Core\Language\Language\C\RandomNumbers.vb"
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' Author:
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'
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' asuka (amethyst.asuka@gcmodeller.org)
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' xie (genetics@smrucc.org)
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' xieguigang (xie.guigang@live.com)
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'
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' Copyright (c) 2018 GPL3 Licensed
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'
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'
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' GNU GENERAL PUBLIC LICENSE (GPL3)
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'
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'
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' This program is free software: you can redistribute it and/or modify
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' it under the terms of the GNU General Public License as published by
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' the Free Software Foundation, either version 3 of the License, or
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' (at your option) any later version.
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'
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' This program is distributed in the hope that it will be useful,
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' but WITHOUT ANY WARRANTY; without even the implied warranty of
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' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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' GNU General Public License for more details.
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'
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' You should have received a copy of the GNU General Public License
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' along with this program. If not, see <http://www.gnu.org/licenses/>.
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' /********************************************************************************/
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' Summaries:
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' Module RandomNumbers
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'
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' Constructor: (+1 Overloads) Sub New
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'
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' Function: rand, random
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'
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' Sub: randomize, srand
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'
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'
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' /********************************************************************************/
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#End Region
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'----------------------------------------------------------------------------------------
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' Copyright © 2006 - 2012 Tangible Software Solutions Inc.
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' This class can be used by anyone provided that the copyright notice remains intact.
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'
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' This class provides the ability to simulate the behavior of the C/C++ functions for
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' generating random numbers, using the .NET Framework System.Random class.
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' 'rand' converts to the parameterless overload of NextNumber
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' 'random' converts to the single-parameter overload of NextNumber
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' 'randomize' converts to the parameterless overload of Seed
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' 'srand' converts to the single-parameter overload of Seed
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'----------------------------------------------------------------------------------------
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Namespace Language.C
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''' <summary>
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''' This class provides the ability to simulate the behavior of the C/C++ functions for
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''' generating random numbers, using the .NET Framework <see cref="System.Random"/> class.
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'''
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''' + ``rand`` converts to the parameterless overload of NextNumber
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''' + ``random`` converts to the single-parameter overload of NextNumber
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''' + ``randomize`` converts to the parameterless overload of Seed
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''' + ``srand`` converts to the single-parameter overload of Seed
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''' </summary>
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Public Module RandomNumbers
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Dim r As Random
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Sub New()
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Call randomize()
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End Sub
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''' <summary>
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''' <see cref="System.Random.Next"/>.(线程安全的函数)
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''' </summary>
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''' <returns></returns>
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Public Function rand() As Integer
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SyncLock r
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Return r.[Next]()
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End SyncLock
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End Function
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''' <summary>
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''' <see cref="System.Random.Next(Integer)"/>.(线程安全的函数)
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''' </summary>
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''' <param name="ceiling"></param>
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''' <returns></returns>
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Public Function random(ceiling As Integer) As Integer
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SyncLock r
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Return r.[Next](ceiling)
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End SyncLock
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End Function
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Public Sub randomize()
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r = New Random(Now.Millisecond)
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End Sub
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Public Sub srand(seed__1 As Integer)
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r = New Random(seed__1)
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End Sub
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End Module
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End Namespace
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