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Diffstat (limited to 'boost/units/systems/information/prefixes.hpp')
| -rw-r--r-- | boost/units/systems/information/prefixes.hpp | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/boost/units/systems/information/prefixes.hpp b/boost/units/systems/information/prefixes.hpp new file mode 100644 index 0000000000..52b13618bf --- /dev/null +++ b/boost/units/systems/information/prefixes.hpp @@ -0,0 +1,43 @@ +// Boost.Units - A C++ library for zero-overhead dimensional analysis and +// unit/quantity manipulation and conversion +// +// Copyright (C) 2014 Erik Erlandson +// +// Distributed under the Boost Software License, Version 1.0. (See +// accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) + +#ifndef BOOST_UNITS_INFORMATION_PREFIXES_HPP +#define BOOST_UNITS_INFORMATION_PREFIXES_HPP + +#include <boost/units/make_scaled_unit.hpp> +#include <boost/units/static_rational.hpp> +#include <boost/units/scale.hpp> + +#include <boost/units/systems/information/byte.hpp> + +#define BOOST_UNITS_INFOSYS_PREFIX(exponent, name) \ + typedef make_scaled_unit<dimensionless, scale<2, static_rational<exponent> > >::type name ## _pf_type; \ + BOOST_UNITS_STATIC_CONSTANT(name, name ## _pf_type) + +namespace boost { +namespace units { +namespace information { + +// Note, these are defined (somewhat arbitrarily) against the 'byte' system. +// They work smoothly with bit_information, nat_information, etc, so it is +// transparent to the user. +BOOST_UNITS_INFOSYS_PREFIX(10, kibi); +BOOST_UNITS_INFOSYS_PREFIX(20, mebi); +BOOST_UNITS_INFOSYS_PREFIX(30, gibi); +BOOST_UNITS_INFOSYS_PREFIX(40, tebi); +BOOST_UNITS_INFOSYS_PREFIX(50, pebi); +BOOST_UNITS_INFOSYS_PREFIX(60, exbi); +BOOST_UNITS_INFOSYS_PREFIX(70, zebi); +BOOST_UNITS_INFOSYS_PREFIX(80, yobi); + +}}} + +#undef BOOST_UNITS_INFOSYS_PREFIX + +#endif |