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 11 #ifndef BOOST_UNIT_SYSTEMS_IMPERIAL_POUND_HPP_INCLUDED 12 #define BOOST_UNIT_SYSTEMS_IMPERIAL_POUND_HPP_INCLUDED 13 14 #include <string> 15 16 #include <boost/units/config.hpp> 17 #include <boost/units/base_unit.hpp> 18 #include <boost/units/physical_dimensions/mass.hpp> 19 #include <boost/units/base_units/cgs/gram.hpp> 20 #include <boost/units/conversion.hpp> 21 22 // can't define in terms of kilogram because it is a scaled_base_unit 23 //BOOST_UNITS_DEFINE_BASE_UNIT_WITH_CONVERSIONS(imperial, pound, "pound", "lb", 0.45359237, si::kilogram_base_unit, -302); // exact conversion 24 BOOST_UNITS_DEFINE_BASE_UNIT_WITH_CONVERSIONS(imperial, pound, "pound", "lb", 453.59237, cgs::gram_base_unit, -302); // exact conversion 25 26 #if BOOST_UNITS_HAS_BOOST_TYPEOF 27 28 #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP() 29 30 BOOST_TYPEOF_REGISTER_TYPE(boost::units::imperial::pound_base_unit) 31 32 #endif 33 34 #endif // BOOST_UNIT_SYSTEMS_IMPERIAL_POUND_HPP_INCLUDED 35