base_units/metric/angstrom.hpp

0001 // Boost.Units - A C++ library for zero-overhead dimensional analysis and
0002 // unit/quantity manipulation and conversion
0003 //
0004 // Copyright (C) 2003-2008 Matthias Christian Schabel
0005 // Copyright (C) 2007-2008 Steven Watanabe
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See
0008 // accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010
0011 #ifndef BOOST_UNIT_SYSTEMS_METRIC_ANGSTROM_HPP_INCLUDED
0012 #define BOOST_UNIT_SYSTEMS_METRIC_ANGSTROM_HPP_INCLUDED
0013
0014 #include <boost/units/scaled_base_unit.hpp>
0015 #include <boost/units/static_rational.hpp>
0016 #include <boost/units/scale.hpp>
0017 #include <boost/units/units_fwd.hpp>
0018 #include <boost/units/base_units/si/meter.hpp>
0019
0020 namespace boost {
0021 namespace units {
0022 namespace metric {
0023
0024 typedef scaled_base_unit<boost::units::si::meter_base_unit, scale<10, static_rational<-10> > > angstrom_base_unit;
0025
0026 }
0027
0028 template<>
0029 struct base_unit_info<metric::angstrom_base_unit> {
0030     static BOOST_CONSTEXPR const char* name()   { return("angstrom"); }
0031     static BOOST_CONSTEXPR const char* symbol() { return("A"); }
0032 };
0033
0034 }
0035 }
0036
0037 #endif // BOOST_UNIT_SYSTEMS_METRIC_ANGSTROM_HPP_INCLUDED