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+// Boost.Units - A C++ library for zero-overhead dimensional analysis and
+// unit/quantity manipulation and conversion
+//
+// Copyright (C) 2003-2008 Matthias Christian Schabel
+// Copyright (C) 2008 Steven Watanabe
+//
+// 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_CODATA_UNIVERSAL_CONSTANTS_HPP
+#define BOOST_UNITS_CODATA_UNIVERSAL_CONSTANTS_HPP
+
+#include <boost/units/static_constant.hpp>
+
+#include <boost/units/systems/detail/constants.hpp>
+#include <boost/units/systems/si/capacitance.hpp>
+#include <boost/units/systems/si/current.hpp>
+#include <boost/units/systems/si/energy.hpp>
+#include <boost/units/systems/si/force.hpp>
+#include <boost/units/systems/si/length.hpp>
+#include <boost/units/systems/si/mass.hpp>
+#include <boost/units/systems/si/resistance.hpp>
+#include <boost/units/systems/si/temperature.hpp>
+#include <boost/units/systems/si/time.hpp>
+#include <boost/units/systems/si/velocity.hpp>
+#include <boost/units/systems/si/volume.hpp>
+#include <boost/units/systems/si/codata/typedefs.hpp>
+
+/// \file
+/// CODATA recommended values of fundamental universal constants
+/// using CODATA 2006 values as of 2007/03/30
+
+namespace boost {
+
+namespace units {
+
+namespace si {
+
+namespace constants {
+
+namespace codata {
+
+/// CODATA recommended values of the fundamental physical constants: NIST SP 961
+
+// UNIVERSAL
+/// speed of light
+BOOST_UNITS_PHYSICAL_CONSTANT(c,quantity<velocity>,299792458.0*meters/second,0.0*meters/second);
+/// magnetic constant (exactly 4 pi x 10^(-7) - error is due to finite precision of pi)
+BOOST_UNITS_PHYSICAL_CONSTANT(mu_0,quantity<force_over_current_squared>,12.56637061435917295385057353311801153679e-7*newtons/ampere/ampere,0.0*newtons/ampere/ampere);
+/// electric constant
+BOOST_UNITS_PHYSICAL_CONSTANT(epsilon_0,quantity<capacitance_over_length>,8.854187817620389850536563031710750260608e-12*farad/meter,0.0*farad/meter);
+/// characteristic impedance of vacuum
+BOOST_UNITS_PHYSICAL_CONSTANT(Z_0,quantity<resistance>,376.7303134617706554681984004203193082686*ohm,0.0*ohm);
+/// Newtonian constant of gravitation
+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);
+/// Planck constant
+BOOST_UNITS_PHYSICAL_CONSTANT(h,quantity<energy_time>,6.62606896e-34*joule*seconds,3.3e-41*joule*seconds);
+/// Dirac constant
+BOOST_UNITS_PHYSICAL_CONSTANT(hbar,quantity<energy_time>,1.054571628e-34*joule*seconds,5.3e-42*joule*seconds);
+/// Planck mass
+BOOST_UNITS_PHYSICAL_CONSTANT(m_P,quantity<mass>,2.17644e-8*kilograms,1.1e-12*kilograms);
+/// Planck temperature
+BOOST_UNITS_PHYSICAL_CONSTANT(T_P,quantity<temperature>,1.416785e32*kelvin,7.1e27*kelvin);
+/// Planck length
+BOOST_UNITS_PHYSICAL_CONSTANT(l_P,quantity<length>,1.616252e-35*meters,8.1e-40*meters);
+/// Planck time
+BOOST_UNITS_PHYSICAL_CONSTANT(t_P,quantity<time>,5.39124e-44*seconds,2.7e-48*seconds);
+
+} // namespace codata
+
+} // namespace constants
+
+} // namespace si
+
+} // namespace units
+
+} // namespace boost
+
+#endif // BOOST_UNITS_CODATA_UNIVERSAL_CONSTANTS_HPP