/usr/include/boost/tr1/tr1/cmath is in libboost1.49-dev 1.49.0-3.2.
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 | //  (C) Copyright John Maddock 2008.
//  Use, modification and distribution are subject to the
//  Boost Software License, Version 1.0. (See accompanying file
//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#if !defined(BOOST_TR1_CMATH_INCLUDED) || defined(BOOST_TR1_NO_RECURSION)
#ifndef BOOST_TR1_CMATH_INCLUDED
#  define BOOST_TR1_CMATH_INCLUDED
#endif
#  ifdef BOOST_TR1_NO_CMATH_RECURSION2
#     define BOOST_TR1_NO_CMATH_RECURSION3
#  elif defined(BOOST_TR1_NO_CMATH_RECURSION)
#     define BOOST_TR1_NO_CMATH_RECURSION2
#  elif !defined(BOOST_TR1_NO_RECURSION)
#     define BOOST_TR1_NO_RECURSION
#     define BOOST_TR1_NO_CMATH_RECURSION
#  endif
#  include <boost/tr1/detail/config_all.hpp>
#  if defined(BOOST_HAS_INCLUDE_NEXT) && !defined(BOOST_TR1_DISABLE_INCLUDE_NEXT)
#     include_next <cmath>
#  else
#     include BOOST_TR1_STD_CHEADER(cmath)
#  endif
#ifdef BOOST_TR1_NO_CMATH_RECURSION3
#  undef BOOST_TR1_NO_CMATH_RECURSION3
#elif defined(BOOST_TR1_NO_CMATH_RECURSION2)
#  undef BOOST_TR1_NO_CMATH_RECURSION2
#elif defined(BOOST_TR1_NO_CMATH_RECURSION)
#     undef BOOST_TR1_NO_RECURSION
#     undef BOOST_TR1_NO_CMATH_RECURSION
#  endif
#endif
#if !defined(BOOST_TR1_FULL_CMATH_INCLUDED) && !defined(BOOST_TR1_NO_RECURSION)
#  define BOOST_TR1_FULL_CMATH_INCLUDED
#  define BOOST_TR1_NO_RECURSION
#  include <boost/tr1/cmath.hpp>
#  undef BOOST_TR1_NO_RECURSION
#endif
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