This file is indexed.

/usr/include/eigen3/Eigen/Eigenvalues is in libeigen3-dev 3.2.0-8.

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
#ifndef EIGEN_EIGENVALUES_MODULE_H
#define EIGEN_EIGENVALUES_MODULE_H

#include "Core"

#include "src/Core/util/DisableStupidWarnings.h"

#include "Cholesky"
#include "Jacobi"
#include "Householder"
#include "LU"
#include "Geometry"

/** \defgroup Eigenvalues_Module Eigenvalues module
  *
  *
  *
  * This module mainly provides various eigenvalue solvers.
  * This module also provides some MatrixBase methods, including:
  *  - MatrixBase::eigenvalues(),
  *  - MatrixBase::operatorNorm()
  *
  * \code
  * #include <Eigen/Eigenvalues>
  * \endcode
  */

#include "src/Eigenvalues/Tridiagonalization.h"
#include "src/Eigenvalues/RealSchur.h"
#include "src/Eigenvalues/EigenSolver.h"
#include "src/Eigenvalues/SelfAdjointEigenSolver.h"
#include "src/Eigenvalues/GeneralizedSelfAdjointEigenSolver.h"
#include "src/Eigenvalues/HessenbergDecomposition.h"
#include "src/Eigenvalues/ComplexSchur.h"
#include "src/Eigenvalues/ComplexEigenSolver.h"
#include "src/Eigenvalues/RealQZ.h"
#include "src/Eigenvalues/GeneralizedEigenSolver.h"
#include "src/Eigenvalues/MatrixBaseEigenvalues.h"
#ifdef EIGEN_USE_LAPACKE
#include "src/Eigenvalues/RealSchur_MKL.h"
#include "src/Eigenvalues/ComplexSchur_MKL.h"
#include "src/Eigenvalues/SelfAdjointEigenSolver_MKL.h"
#endif

#include "src/Core/util/ReenableStupidWarnings.h"

#endif // EIGEN_EIGENVALUES_MODULE_H
/* vim: set filetype=cpp et sw=2 ts=2 ai: */