ceph/src/boost/libs/units/include/boost/units/systems/si/codata/universal_constants.hpp

   1 // Boost.Units - A C++ library for zero-overhead dimensional analysis and
   2 // unit/quantity manipulation and conversion
   3 //
   4 // Copyright (C) 2003-2008 Matthias Christian Schabel
   5 // Copyright (C) 2008 Steven Watanabe
   6 //
   7 // Distributed under the Boost Software License, Version 1.0. (See
   8 // accompanying file LICENSE_1_0.txt or copy at
   9 // http://www.boost.org/LICENSE_1_0.txt)
  10
  11 #ifndef BOOST_UNITS_CODATA_UNIVERSAL_CONSTANTS_HPP
  12 #define BOOST_UNITS_CODATA_UNIVERSAL_CONSTANTS_HPP
  13
  14 #include <boost/units/quantity.hpp>
  15 #include <boost/units/static_constant.hpp>
  16
  17 #include <boost/units/systems/detail/constants.hpp>
  18 #include <boost/units/systems/si/capacitance.hpp>
  19 #include <boost/units/systems/si/current.hpp>
  20 #include <boost/units/systems/si/energy.hpp>
  21 #include <boost/units/systems/si/force.hpp>
  22 #include <boost/units/systems/si/length.hpp>
  23 #include <boost/units/systems/si/mass.hpp>
  24 #include <boost/units/systems/si/resistance.hpp>
  25 #include <boost/units/systems/si/temperature.hpp>
  26 #include <boost/units/systems/si/time.hpp>
  27 #include <boost/units/systems/si/velocity.hpp>
  28 #include <boost/units/systems/si/volume.hpp>
  29 #include <boost/units/systems/si/codata/typedefs.hpp>
  30
  31 /// \file
  32 /// CODATA recommended values of fundamental universal constants
  33 /// using CODATA 2006 values as of 2007/03/30
  34
  35 namespace boost {
  36
  37 namespace units {
  38
  39 namespace si {
  40
  41 namespace constants {
  42
  43 namespace codata {
  44
  45 /// CODATA recommended values of the fundamental physical constants: NIST SP 961
  46
  47 // UNIVERSAL
  48 /// speed of light
  49 BOOST_UNITS_PHYSICAL_CONSTANT(c,quantity<velocity>,299792458.0*meters/second,0.0*meters/second);
  50 /// magnetic constant (exactly 4 pi x 10^(-7) - error is due to finite precision of pi)
  51 BOOST_UNITS_PHYSICAL_CONSTANT(mu_0,quantity<force_over_current_squared>,12.56637061435917295385057353311801153679e-7*newtons/ampere/ampere,0.0*newtons/ampere/ampere);
  52 /// electric constant
  53 BOOST_UNITS_PHYSICAL_CONSTANT(epsilon_0,quantity<capacitance_over_length>,8.854187817620389850536563031710750260608e-12*farad/meter,0.0*farad/meter);
  54 /// characteristic impedance of vacuum
  55 BOOST_UNITS_PHYSICAL_CONSTANT(Z_0,quantity<resistance>,376.7303134617706554681984004203193082686*ohm,0.0*ohm);
  56 /// Newtonian constant of gravitation
  57 BOOST_UNITS_PHYSICAL_CONSTANT(G,quantity<volume_over_mass_time_squared>,6.67428e-11*cubic_meters/kilogram/second/second,6.7e-15*cubic_meters/kilogram/second/second);
  58 /// Planck constant
  59 BOOST_UNITS_PHYSICAL_CONSTANT(h,quantity<energy_time>,6.62606896e-34*joule*seconds,3.3e-41*joule*seconds);
  60 /// Dirac constant
  61 BOOST_UNITS_PHYSICAL_CONSTANT(hbar,quantity<energy_time>,1.054571628e-34*joule*seconds,5.3e-42*joule*seconds);
  62 /// Planck mass
  63 BOOST_UNITS_PHYSICAL_CONSTANT(m_P,quantity<mass>,2.17644e-8*kilograms,1.1e-12*kilograms);
  64 /// Planck temperature
  65 BOOST_UNITS_PHYSICAL_CONSTANT(T_P,quantity<temperature>,1.416785e32*kelvin,7.1e27*kelvin);
  66 /// Planck length
  67 BOOST_UNITS_PHYSICAL_CONSTANT(l_P,quantity<length>,1.616252e-35*meters,8.1e-40*meters);
  68 /// Planck time
  69 BOOST_UNITS_PHYSICAL_CONSTANT(t_P,quantity<time>,5.39124e-44*seconds,2.7e-48*seconds);
  70
  71 } // namespace codata
  72
  73 } // namespace constants
  74
  75 } // namespace si
  76
  77 } // namespace units
  78
  79 } // namespace boost
  80
  81 #endif // BOOST_UNITS_CODATA_UNIVERSAL_CONSTANTS_HPP