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EvtItgPtrFunction.cpp
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EvtItgPtrFunction.cpp
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//--------------------------------------------------------------------------
//
// Copyright Information: See EvtGen/COPYRIGHT
//
// Environment:
// This software is part of the EvtGen package developed jointly
// for the BaBar and CLEO collaborations. If you use all or part
// of it, please give an appropriate acknowledgement.
//
// Module: EvtItgPtrFunction.hh
//
// Description:
// Class describing a function with one vector of coefficients. (Stolen and
// modified from the BaBar IntegrationUtils package - author: Phil Strother).
//
// Modification history:
//
// Jane Tinslay March 21, 2001 Module adapted for use in
// EvtGen
//
//------------------------------------------------------------------------
#include "EvtGenBase/EvtPatches.hh"
#include "EvtGenModels/EvtItgPtrFunction.hh"
//-------------
// C Headers --
//-------------
extern "C" {
}
//----------------
// Constructors --
//----------------
EvtItgPtrFunction::EvtItgPtrFunction( double (*theFunction)(double, const std::vector<double> &), double lowerRange, double upperRange, const std::vector<double> &coeffs1):
EvtItgAbsFunction(lowerRange, upperRange),
_myFunction(theFunction),
_coeffs1(coeffs1)
{}
//--------------
// Destructor --
//--------------
EvtItgPtrFunction::~EvtItgPtrFunction( )
{}
double
EvtItgPtrFunction::myFunction(double x) const{
return _myFunction(x, _coeffs1);
}
void
EvtItgPtrFunction::setCoeff(int vect, int which, double value)
{
if (vect == 1) _coeffs1[which] = value;
}
double
EvtItgPtrFunction::getCoeff(int vect, int which)
{
if (vect == 1) return _coeffs1[which];
else {return 0;}
}

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