Chris@16: // Boost.Units - A C++ library for zero-overhead dimensional analysis and 
Chris@16: // unit/quantity manipulation and conversion
Chris@16: //
Chris@16: // Copyright (C) 2003-2008 Matthias Christian Schabel
Chris@16: // Copyright (C) 2007-2008 Steven Watanabe
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_UNITS_SI_PREFIXES_HPP
Chris@16: #define BOOST_UNITS_SI_PREFIXES_HPP
Chris@16: 
Chris@16: #include <boost/units/static_constant.hpp>
Chris@16: 
Chris@16: #include <boost/units/make_scaled_unit.hpp>
Chris@16: #include <boost/units/systems/si/dimensionless.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: 
Chris@16: namespace units { 
Chris@16: 
Chris@16: namespace si {
Chris@16: 
Chris@16: #define BOOST_UNITS_METRIC_PREFIX(exponent, name)                                                       \
Chris@16:     typedef make_scaled_unit<dimensionless, scale<10, static_rational<exponent> > >::type name ## _type;\
Chris@16:     BOOST_UNITS_STATIC_CONSTANT(name, name ## _type)
Chris@16: 
Chris@16: BOOST_UNITS_METRIC_PREFIX(-24, yocto);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-21, zepto);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-18, atto);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-15, femto);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-12, pico);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-9, nano);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-6, micro);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-3, milli);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-2, centi);
Chris@16: BOOST_UNITS_METRIC_PREFIX(-1, deci);
Chris@16: BOOST_UNITS_METRIC_PREFIX(1, deka);
Chris@16: BOOST_UNITS_METRIC_PREFIX(2, hecto);
Chris@16: BOOST_UNITS_METRIC_PREFIX(3, kilo);
Chris@16: BOOST_UNITS_METRIC_PREFIX(6, mega);
Chris@16: BOOST_UNITS_METRIC_PREFIX(9, giga);
Chris@16: BOOST_UNITS_METRIC_PREFIX(12, tera);
Chris@16: BOOST_UNITS_METRIC_PREFIX(15, peta);
Chris@16: BOOST_UNITS_METRIC_PREFIX(18, exa);
Chris@16: BOOST_UNITS_METRIC_PREFIX(21, zetta);
Chris@16: BOOST_UNITS_METRIC_PREFIX(24, yotta);
Chris@16: 
Chris@16: /*BOOST_UNITS_STATIC_CONSTANT(yocto,long double) = (1e-24);       ///< metric prefix for 1.0e-24
Chris@16: BOOST_UNITS_STATIC_CONSTANT(zepto,long double) = (1e-21);       ///< metric prefix for 1.0e-21
Chris@16: BOOST_UNITS_STATIC_CONSTANT(atto,long double) = (1e-18);        ///< metric prefix for 1.0e-18
Chris@16: BOOST_UNITS_STATIC_CONSTANT(femto,long double) = (1e-15);       ///< metric prefix for 1.0e-15
Chris@16: BOOST_UNITS_STATIC_CONSTANT(pico,long double) = (1e-12);        ///< metric prefix for 1.0e-12
Chris@16: BOOST_UNITS_STATIC_CONSTANT(nano,long double) = (1e-9);         ///< metric prefix for 1.0e-9
Chris@16: BOOST_UNITS_STATIC_CONSTANT(micro,long double) = (1e-6);        ///< metric prefix for 1.0e-6
Chris@16: BOOST_UNITS_STATIC_CONSTANT(milli,long double) = (1e-3);        ///< metric prefix for 1.0e-3
Chris@16: BOOST_UNITS_STATIC_CONSTANT(centi,long double) = (1e-2);        ///< metric prefix for 1.0e-2
Chris@16: BOOST_UNITS_STATIC_CONSTANT(deci,long double) = (1e-1);         ///< metric prefix for 1.0e-1
Chris@16: BOOST_UNITS_STATIC_CONSTANT(deka,long double) = (1e1);          ///< metric prefix for 1.0e+1
Chris@16: BOOST_UNITS_STATIC_CONSTANT(hecto,long double) = (1e2);         ///< metric prefix for 1.0e+2
Chris@16: BOOST_UNITS_STATIC_CONSTANT(kilo,long double) = (1e3);          ///< metric prefix for 1.0e+3
Chris@16: BOOST_UNITS_STATIC_CONSTANT(mega,long double) = (1e6);          ///< metric prefix for 1.0e+6
Chris@16: BOOST_UNITS_STATIC_CONSTANT(giga,long double) = (1e9);          ///< metric prefix for 1.0e+9
Chris@16: BOOST_UNITS_STATIC_CONSTANT(tera,long double) = (1e12);         ///< metric prefix for 1.0e+12
Chris@16: BOOST_UNITS_STATIC_CONSTANT(peta,long double) = (1e15);         ///< metric prefix for 1.0e+15
Chris@16: BOOST_UNITS_STATIC_CONSTANT(exa,long double) = (1e18);          ///< metric prefix for 1.0e+18
Chris@16: BOOST_UNITS_STATIC_CONSTANT(zetta,long double) = (1e21);        ///< metric prefix for 1.0e+21
Chris@16: BOOST_UNITS_STATIC_CONSTANT(yotta,long double) = (1e24);        ///< metric prefix for 1.0e+24 */ 
Chris@16: 
Chris@16: } // namespace si
Chris@16: 
Chris@16: } // namespace units
Chris@16: 
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif // BOOST_UNITS_SI_PREFIXES_HPP