grain.hpp 1.1 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_UNIT_BASE_UNITS_US_GRAIN_HPP_INCLUDED
  11. #define BOOST_UNIT_BASE_UNITS_US_GRAIN_HPP_INCLUDED
  12. #include <boost/units/scaled_base_unit.hpp>
  13. #include <boost/units/static_rational.hpp>
  14. #include <boost/units/scale.hpp>
  15. #include <boost/units/base_units/us/pound.hpp>
  16. namespace boost {
  17. namespace units {
  18. namespace us {
  19. typedef scaled_base_unit<pound_base_unit, scale<7000, static_rational<-1> > > grain_base_unit;
  20. } // namespace us
  21. template<>
  22. struct base_unit_info<us::grain_base_unit> {
  23. static BOOST_CONSTEXPR const char* name() { return("grain"); }
  24. static BOOST_CONSTEXPR const char* symbol() { return("gr"); }
  25. };
  26. } // namespace units
  27. } // namespace boost
  28. #endif // BOOST_UNIT_BASE_UNITS_US_GRAIN_HPP_INCLUDED