/usr/include/CLHEP/GenericFunctions/F1D.hh is in libclhep-dev 2.1.4.1-1.2.
This file is owned by root:root, with mode 0o644.
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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 | // -*- C++ -*------------------------------------------------------
//
// This class is an adaptor from any function (double *f)(double x)
// of one real variable, to generic functions. This allows one
// to plot, differentiate, sum, compose, etc, any standard C or
// C++ math function by converting it to a Generic Function.
//
// Joe Boudreau October 2012
//-----------------------------------------------------
#ifndef F1D_h
#define F1D_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
namespace Genfun {
/**
* @author
* @ingroup genfun
*/
class F1D : public AbsFunction {
typedef double (*FcnPtr)(double);
FUNCTION_OBJECT_DEF(F1D)
public:
// Constructor
F1D(FcnPtr fcn):p(fcn){};
// Destructor
virtual ~F1D(){};
// Copy constructor
F1D(const F1D &right):AbsFunction(),p(right.p){};
// Retreive function value
virtual double operator ()(double x) const {
return (*p)(x);
}
virtual double operator ()(const Argument & a) const {return operator() (a[0]);}
private:
// It is illegal to assign a F1D
const F1D & operator=(const F1D &right);
// Data:
FcnPtr p;
};
FUNCTION_OBJECT_IMP(F1D)
} // namespace Genfun
#endif
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