1 // Boost.Units - A C++ library for zero-overhead dimensional analysis and 2 // unit/quantity manipulation and conversion 3 // 4 // Copyright (C) 2014 Erik Erlandson 5 // 6 // Distributed under the Boost Software License, Version 1.0. (See 7 // accompanying file LICENSE_1_0.txt or copy at 8 // http://www.boost.org/LICENSE_1_0.txt) 9 10 #ifndef BOOST_UNITS_SYSTEMS_INFORMATION_PREFIXES_HPP_INCLUDED 11 #define BOOST_UNITS_SYSTEMS_INFORMATION_PREFIXES_HPP_INCLUDED 12 13 #include <boost/units/make_scaled_unit.hpp> 14 #include <boost/units/static_rational.hpp> 15 #include <boost/units/scale.hpp> 16 17 #include <boost/units/systems/information/byte.hpp> 18 19 #define BOOST_UNITS_INFOSYS_PREFIX(exponent, name) \ 20 typedef make_scaled_unit<dimensionless, scale<2, static_rational<exponent> > >::type name ## _pf_type; \ 21 BOOST_UNITS_STATIC_CONSTANT(name, name ## _pf_type) 22 23 namespace boost { 24 namespace units { 25 namespace information { 26 27 // Note, these are defined (somewhat arbitrarily) against the 'byte' system. 28 // They work smoothly with bit_information, nat_information, etc, so it is 29 // transparent to the user. 30 BOOST_UNITS_INFOSYS_PREFIX(10, kibi); 31 BOOST_UNITS_INFOSYS_PREFIX(20, mebi); 32 BOOST_UNITS_INFOSYS_PREFIX(30, gibi); 33 BOOST_UNITS_INFOSYS_PREFIX(40, tebi); 34 BOOST_UNITS_INFOSYS_PREFIX(50, pebi); 35 BOOST_UNITS_INFOSYS_PREFIX(60, exbi); 36 BOOST_UNITS_INFOSYS_PREFIX(70, zebi); 37 BOOST_UNITS_INFOSYS_PREFIX(80, yobi); 38 39 } // namespace information 40 } // namespace units 41 } // namespace boost 42 43 #undef BOOST_UNITS_INFOSYS_PREFIX 44 45 #endif // BOOST_UNITS_SYSTEMS_INFORMATION_PREFIXES_HPP_INCLUDED 46