/usr/include/CLHEP/GenericFunctions/Variable.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.
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 58 59 60 61 62 63 64 65 66 | // -*- C++ -*-
// $Id: Variable.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
//----------------------X------------ --------------------------------------//
// //
// Class Variable //
// Joe Boudreau, Petar Maksimovic, Nov. 1999 //
// //
// Variable is a function that returns the variable itself. //
//--------------------------------------------------------------------------//
#ifndef Variable_h
#define Variable_h 1
#include "CLHEP/GenericFunctions/AbsFunction.hh"
namespace Genfun {
/**
* @author
* @ingroup genfun
*/
class Variable : public AbsFunction {
FUNCTION_OBJECT_DEF(Variable)
public:
// Constructor
Variable(unsigned int selectionIndex=0,
unsigned int dimensionality=1);
// Copy constructor
Variable(const Variable &right);
// Destructor
virtual ~Variable();
// Retrieve function value
virtual double operator ()(double argument) const;
virtual double operator ()(const Argument & a) const;
// Get the dimensionality, as specified in the constructor:
virtual unsigned int dimensionality() const ;
// Get the selectionIndex:
unsigned int index() 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 fixed constant
const Variable & operator=(const Variable &right);
// The selection index is used to select a particular element from
// the argument. By default it is zero.....
unsigned int _selectionIndex;
// The dimensionality, length of the argument list:
unsigned int _dimensionality;
};
} // namespace Genfun
#endif
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