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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkMersenneTwisterRandomVariateGenerator.cxx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "itkMersenneTwisterRandomVariateGenerator.h"
namespace itk {
namespace Statistics {
MersenneTwisterRandomVariateGenerator::Pointer MersenneTwisterRandomVariateGenerator::m_Instance = 0;
/**
* This just calls GetInstance
*/
MersenneTwisterRandomVariateGenerator::Pointer
MersenneTwisterRandomVariateGenerator::New()
{
return GetInstance();
}
/**
* Return the single instance of the MersenneTwisterRandomVariateGenerator
*/
MersenneTwisterRandomVariateGenerator::Pointer
MersenneTwisterRandomVariateGenerator
::GetInstance()
{
if ( !MersenneTwisterRandomVariateGenerator::m_Instance )
{
// Try the factory first
MersenneTwisterRandomVariateGenerator::m_Instance = ObjectFactory<Self>::Create();
// if the factory did not provide one, then create it here
if( ! MersenneTwisterRandomVariateGenerator::m_Instance )
{
MersenneTwisterRandomVariateGenerator::m_Instance = new MersenneTwisterRandomVariateGenerator;
// Remove extra reference from construction.
MersenneTwisterRandomVariateGenerator::m_Instance->UnRegister();
}
}
/**
* return the instance
*/
return MersenneTwisterRandomVariateGenerator::m_Instance;
}
}
}
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