ceph/src/boost/libs/units/include/boost/units/systems/information/prefixes.hpp

   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