This file is indexed.

/usr/include/CLHEP/GenericFunctions/FunctionComposition.hh is in libclhep-dev 2.1.4.1-1.1.

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
// -*- 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