This file is indexed.

/usr/include/libcoyotl/cmwc4096.h is in libcoyotl-dev 3.1.0-6.

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
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
//---------------------------------------------------------------------
//  Algorithmic Conjurings @ http://www.coyotegulch.com
//
//  cmwc4096.cpp (libcoyotl)
//
//  The cmwc4096 class encapsulates a complimentary-multiply-with-carry
//  algorithm for psuedorandom number generation, as suggested by George 
//  Marsaglia.
//---------------------------------------------------------------------
//
//  Copyright 1990-2005 Scott Robert Ladd
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//  
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//  
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the
//      Free Software Foundation, Inc.
//      59 Temple Place - Suite 330
//      Boston, MA 02111-1307, USA.
//
//-----------------------------------------------------------------------
//
//  For more information on this software package, please visit
//  Scott's web site, Coyote Gulch Productions, at:
//
//      http://www.coyotegulch.com
//  
//-----------------------------------------------------------------------

#if !defined(LIBCOYOTL_CMWC4096_H)
#define LIBCOYOTL_CMWC4096_H

#include "prng.h"

namespace libcoyotl
{
    //! Implements CMWC4096, a peudorandom number generator
    /*!
        The cmwc4096 class encapsulates a complimentary-multiply-with-carry
        algorithm for psuedorandom number generation, as suggested by George 
        Marsaglia.
    */
    class cmwc4096 : public prng
    {
    private:
        // Period parameters
        static const size_t N = 4096;

        // Working storage
        uint32_t m_q[N];
        uint32_t m_carry;
        int      m_index;

    public:
        //! Default constructor, reading seed from/dev/urandom or the time.
        /*!
            The constructor initializes the prng seed from either the time
            or some stochastic source such as /dev/random or /dev/urandom.
        */
        cmwc4096();

        //! Default constructor, with optional seed.
        /*!
            The constructor uses an explicit value for the seed.
            \param seed - Seed value used to "start" or seed the generator
        */
        cmwc4096(uint32_t seed);

        //! Initializes the generator with "seed"
        /*!
            Resets the generator using the provided seed value.
            \param seed - Seed value used to "start" or seed the generator
        */
        virtual void init(uint32_t seed);

    private:
        //! Initializes the generator with "seed"
        /*!
            Initializes internal tables based on the current seed value.
            \param seed - Seed value used to "start" or seed the generator
        */
        void init_helper();

    public:
        //!  Get the next integer
        /*!
            Returns the next uint32_t in sequence.
            \return A pseudorandom uint32_t value
        */
        virtual uint32_t get_rand();
    };

} // end namespace libcoyotl

#endif