EvtItgPtrFunction.cc

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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 "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; }
}