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EvtIntervalFlatPdf.cpp
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EvtIntervalFlatPdf.cpp
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/***********************************************************************
* Copyright 1998-2020 CERN for the benefit of the EvtGen authors *
* *
* This file is part of EvtGen. *
* *
* EvtGen is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* EvtGen is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with EvtGen. If not, see <https://www.gnu.org/licenses/>. *
***********************************************************************/
#include "EvtGenBase/EvtIntervalFlatPdf.hh"
#include "EvtGenBase/EvtPatches.hh"
#include "EvtGenBase/EvtRandom.hh"
#include <assert.h>
EvtIntervalFlatPdf::EvtIntervalFlatPdf( double min, double max ) :
EvtPdf<EvtPoint1D>(), _min( min ), _max( max )
{
assert( max >= min );
}
EvtIntervalFlatPdf::EvtIntervalFlatPdf( const EvtIntervalFlatPdf& other ) :
EvtPdf<EvtPoint1D>( other ), _min( other._min ), _max( other._max )
{
}
EvtPdf<EvtPoint1D>* EvtIntervalFlatPdf::clone() const
{
return new EvtIntervalFlatPdf( *this );
}
double EvtIntervalFlatPdf::pdf( const EvtPoint1D& ) const
{
return 1.;
}
EvtValError EvtIntervalFlatPdf::compute_integral() const
{
return EvtValError( _max - _min, 0. );
}
EvtPoint1D EvtIntervalFlatPdf::randomPoint()
{
return EvtPoint1D( _min, _max, EvtRandom::Flat( _min, _max ) );
}

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