/usr/include/ns3.26/ns3/math.h is in libns3-dev 3.26+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 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* 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
*
*
* FreeBSD log2 patch from graphviz port to FreeBSD 9, courtesy of
* Christoph Moench-Tegeder <cmt@burggraben.net>
*/
// It is recommended to include this header instead of <math.h> or
// <cmath> whenever the log2(x) function is needed. See bug 1467.
#ifndef MATH_H
#define MATH_H
/**
* \file
* \ingroup core
* Custom version of log2() to deal with \bugid{1467}.
*/
#include <cmath>
#ifdef __FreeBSD__
#if __FreeBSD_version <= 704101 || \
(__FreeBSD_version >= 800000 && __FreeBSD_version < 802502) || \
(__FreeBSD_version >= 900000 && __FreeBSD_version < 900027)
#define log2(x) (std::log(x) / M_LN2)
#endif /* __FreeBSD_version */
#endif /* __FreeBSD__ */
#endif /* MATH_H */
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