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#ifndef INCLUDED_NJN_UNIFORM
#define INCLUDED_NJN_UNIFORM
/* $Id: $
* ===========================================================================
*
* PUBLIC DOMAIN NOTICE
* National Center for Biotechnology Information
*
* This software/database is a "United States Government Work" under the
* terms of the United States Copyright Act. It was written as part of
* the author's offical duties as a United States Government employee and
* thus cannot be copyrighted. This software/database is freely available
* to the public for use. The National Library of Medicine and the U.S.
* Government have not placed any restriction on its use or reproduction.
*
* Although all reasonable efforts have been taken to ensure the accuracy
* and reliability of the software and data, the NLM and the U.S.
* Government do not and cannot warrant the performance or results that
* may be obtained by using this software or data. The NLM and the U.S.
* Government disclaim all warranties, express or implied, including
* warranties of performance, merchantability or fitness for any particular
* purpose.
*
* Please cite the author in any work or product based on this material.
*
* ===========================================================================*/
/*****************************************************************************
File name: njn_uniform.hpp
Author: John Spouge
Contents:
******************************************************************************/
#include "njn_random.hpp"
#include <assert.h>
namespace Njn {
namespace Uniform { // uniform distribution
template <typename T>
inline T variate (T a_ = static_cast <T> (0.0), T b_= static_cast <T> (1.0)); // returns uniform random variate [a_, b_)
template <typename T>
inline T standardVariate ();
//
// There are no more declarations beyond this point.
//
template <typename T>
T variate (T a_, T b_)
{
assert (a_ != b_);
//if (b_ < a_) std::swap <T> (a_, b_); // a_ < b_
if (b_ < a_) std::swap (a_, b_); // a_ < b_/*sls deleted <T>*/
long random = 0;
while ((random = Njn::Random::number ()) == 0x7fffffff);
return a_ + static_cast <T> ((b_ - a_) * static_cast <double> (Random::number ()) / static_cast <double> (0x7fffffff));
}
}
}
#endif //! INCLUDED
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