yard.hpp 1.0 KB

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  1. // Boost.Units - A C++ library for zero-overhead dimensional analysis and
  2. // unit/quantity manipulation and conversion
  3. //
  4. // Copyright (C) 2003-2008 Matthias Christian Schabel
  5. // Copyright (C) 2007-2008 Steven Watanabe
  6. //
  7. // Distributed under the Boost Software License, Version 1.0. (See
  8. // accompanying file LICENSE_1_0.txt or copy at
  9. // http://www.boost.org/LICENSE_1_0.txt)
  10. #ifndef BOOST_UNITS_SYSTEMS_US_YARD_BASE_UNIT_HPP
  11. #define BOOST_UNITS_SYSTEMS_US_YARD_BASE_UNIT_HPP
  12. #include <string>
  13. #include <boost/units/config.hpp>
  14. #include <boost/units/base_unit.hpp>
  15. #include <boost/units/physical_dimensions/length.hpp>
  16. #include <boost/units/base_units/si/meter.hpp>
  17. #include <boost/units/conversion.hpp>
  18. BOOST_UNITS_DEFINE_BASE_UNIT_WITH_CONVERSIONS(us, yard, "yard", "yd", 0.9144, si::meter_base_unit, -501); // exact conversion
  19. #if BOOST_UNITS_HAS_BOOST_TYPEOF
  20. #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
  21. BOOST_TYPEOF_REGISTER_TYPE(boost::units::us::yard_base_unit)
  22. #endif
  23. #endif // BOOST_UNITS_SYSTEMS_US_YARD_BASE_UNIT_HPP