/usr/include/CLHEP/GenericFunctions/FunctionComposition.hh is in libclhep-dev 2.1.4.1-1.1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | // -*- C++ -*-
// $Id: FunctionComposition.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
//--------------------------FunctionComposition-----------------------------//
// //
// FunctionComposition, result of composition of two functions. //
// Joe Boudreau, Petar Maksimovic, November 1999 //
// //
//--------------------------------------------------------------------------//
#ifndef FunctionComposition_h
#define FunctionComposition_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
namespace Genfun {
/**
* @author
* @ingroup genfun
*/
class FunctionComposition : public AbsFunction {
FUNCTION_OBJECT_DEF(FunctionComposition)
public:
// Constructor
FunctionComposition(const AbsFunction *arg1, const AbsFunction *arg2);
// Copy constructor
FunctionComposition(const FunctionComposition &right);
// Destructor
virtual ~FunctionComposition();
// Retreive function value
virtual double operator ()(double argument) const;
virtual double operator ()(const Argument & a) const;
// Dimensionality
virtual unsigned int dimensionality() const;
// Derivative.
Derivative partial (unsigned int) const;
// Does this function have an analytic derivative?
virtual bool hasAnalyticDerivative() const {return true;}
private:
// It is illegal to assign a FunctionComposition
const FunctionComposition & operator=(const FunctionComposition &right);
const AbsFunction *_arg1;
const AbsFunction *_arg2;
};
} // namespace Genfun
#endif
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