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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)
- /**
- \file
-
- \brief conversion_factor.cpp
- \details An example of using conversion_factor.
- Output:
- @verbatim
- //[conversion_factor_output
- 1e-005
- 100
- 1e-005
- 100
- 0.01
- //]
- @endverbatim
- **/
- #include <iostream>
- #include <boost/units/cmath.hpp>
- #include <boost/units/io.hpp>
- #include <boost/units/quantity.hpp>
- #include <boost/units/systems/cgs/acceleration.hpp>
- #include <boost/units/systems/si/acceleration.hpp>
- #include <boost/units/systems/si/force.hpp>
- #include <boost/units/systems/cgs/force.hpp>
- #include <boost/units/systems/si/mass.hpp>
- #include <boost/units/systems/cgs/mass.hpp>
- #include <boost/units/systems/si/momentum.hpp>
- #include <boost/units/systems/cgs/momentum.hpp>
- int main()
- {
- using namespace boost;
- using namespace boost::units;
- //[conversion_factor_snippet_1
-
- double dyne_to_newton =
- conversion_factor(cgs::dyne,si::newton);
- std::cout << dyne_to_newton << std::endl;
- double force_over_mass_conversion =
- conversion_factor(si::newton/si::kilogram,cgs::dyne/cgs::gram);
- std::cout << force_over_mass_conversion << std::endl;
- double momentum_conversion =
- conversion_factor(cgs::momentum(),si::momentum());
- std::cout << momentum_conversion << std::endl;
- double momentum_over_mass_conversion =
- conversion_factor(si::momentum()/si::mass(),cgs::momentum()/cgs::gram);
- std::cout << momentum_over_mass_conversion << std::endl;
- double acceleration_conversion =
- conversion_factor(cgs::gal,si::meter_per_second_squared);
- std::cout << acceleration_conversion << std::endl;
-
- //]
- return 0;
- }
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