text: //  (C) Copyright John Maddock 2005.
  //  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 <complex> but to do
  // so in a way that does not result in recursive inclusion of
  // the Boost TR1 components if boost/tr1/tr1/complex is in the
  // include search path.  We have to do this to avoid circular
  // dependencies:
  //
  
  #ifndef BOOST_CONFIG_COMPLEX
  #  define BOOST_CONFIG_COMPLEX
  
  #  ifndef BOOST_TR1_NO_RECURSION
  #     define BOOST_TR1_NO_RECURSION
  #     define BOOST_CONFIG_NO_COMPLEX_RECURSION
  #  endif
  
  #  include <complex>
  
  #  ifdef BOOST_CONFIG_NO_COMPLEX_RECURSION
  #     undef BOOST_TR1_NO_RECURSION
  #     undef BOOST_CONFIG_NO_COMPLEX_RECURSION
  #  endif
  
  #endif
  