/usr/include/CLHEP/GenericFunctions/Rectangular.hh is in libclhep-dev 2.1.4.1-1.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// $Id: Rectangular.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
//---------------------Rectangular------------------------------------------//
// //
// Class Exponential //
// Joe Boudreau, Petar Maksimovic, November 1999 //
// //
//--------------------------------------------------------------------------//
#ifndef Rectangular_h
#define Rectangular_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
#include "CLHEP/GenericFunctions/Parameter.hh"
namespace Genfun {
/**
* @author
* @ingroup genfun
*/
class Rectangular : public AbsFunction {
FUNCTION_OBJECT_DEF(Rectangular)
public:
// Constructor
Rectangular();
// Copy constructor
Rectangular(const Rectangular &right);
// Destructor
virtual ~Rectangular();
// Retreive function value
virtual double operator ()(double argument) const;
virtual double operator ()(const Argument & a) const {return operator() (a[0]);}
// Get the position of the first discontinuity
const Parameter & x0() const;
Parameter & x0();
// Get the position of the second discontinuity
const Parameter & x1() const;
Parameter & x1();
// Get the value of the function at its baseline
const Parameter & baseline() const;
Parameter & baseline();
// Get the value of the function at its top
const Parameter & height() const;
Parameter & height();
// 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 an adjustable constant
const Rectangular & operator=(const Rectangular &right);
// Here is the decay constant
Parameter _x0;
Parameter _x1;
Parameter _baseline;
Parameter _height;
};
} // namespace Genfun
#endif
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