| 12345678910111213141516171819202122232425262728 | //  (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)//// The aim of this header is just to include <cmath> but to do// so in a way that does not result in recursive inclusion of// the Boost TR1 components if boost/tr1/tr1/cmath is in the// include search path.  We have to do this to avoid circular// dependencies://#ifndef BOOST_CONFIG_CMATH#  define BOOST_CONFIG_CMATH#  ifndef BOOST_TR1_NO_RECURSION#     define BOOST_TR1_NO_RECURSION#     define BOOST_CONFIG_NO_CMATH_RECURSION#  endif#  include <cmath>#  ifdef BOOST_CONFIG_NO_CMATH_RECURSION#     undef BOOST_TR1_NO_RECURSION#     undef BOOST_CONFIG_NO_CMATH_RECURSION#  endif#endif
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