text: // Boost.Units - A C++ library for zero-overhead dimensional analysis and
  // unit/quantity manipulation and conversion
  //
  // Copyright (C) 2003-2008 Matthias Christian Schabel
  // Copyright (C) 2007-2008 Steven Watanabe
  //
  // Distributed under 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)
  
  #ifndef BOOST_UNITS_REDUCE_UNIT_HPP_INCLUDED
  #define BOOST_UNITS_REDUCE_UNIT_HPP_INCLUDED
  
  /// \file
  /// \brief Returns a unique type for every unit.
  
  namespace boost {
  namespace units {
  
  #ifdef BOOST_UNITS_DOXYGEN
  
  /// Returns a unique type for every unit.
  template<class Unit>
  struct reduce_unit {
      typedef detail::unspecified type;
  };
  
  #else
  
  // default implementation: return Unit unchanged.
  template<class Unit>
  struct reduce_unit {
      typedef Unit type;
  };
  
  #endif
  
  }
  }
  
  #endif
  