/usr/include/CLHEP/GenericFunctions/PeriodicRectangular.hh is in libclhep-dev 2.1.4.1+dfsg-1.
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: PeriodicRectangular.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
//---------------------Rectangular------------------------------------------//
// //
// Class Exponential //
// Joe Boudreau, Petar Maksimovic, November 1999 //
// //
//--------------------------------------------------------------------------//
#ifndef PeriodicRectangular_h_
#define PeriodicRectangular_h_ 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
#include "CLHEP/GenericFunctions/Parameter.hh"
namespace Genfun {
/**
* @author
* @ingroup genfun
*/
class PeriodicRectangular : public AbsFunction {
FUNCTION_OBJECT_DEF(PeriodicRectangular)
public:
// Constructor
PeriodicRectangular();
// Copy constructor
PeriodicRectangular(const PeriodicRectangular &right);
// Destructor
virtual ~PeriodicRectangular();
// Retreive function value
virtual double operator ()(double argument) const;
virtual double operator ()(const Argument & arg) const {return operator() (arg[0]);}
// Get the position of the first discontinuity
Parameter & a();
// Get the position of the second discontinuity
Parameter & b();
// Get the value of the function at its top
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 PeriodicRectangular & operator=(const PeriodicRectangular &right);
// Here is the decay constant
Parameter _a;
Parameter _b;
Parameter _height;
};
} // namespace Genfun
#endif
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