77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
// Boost.Units - A C++ library for zero-overhead dimensional analysis and
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// unit/quantity manipulation and conversion
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//
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// Copyright (C) 2003-2008 Matthias Christian Schabel
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// Copyright (C) 2008 Steven Watanabe
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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/**
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\file
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\brief conversion_factor.cpp
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\details An example of using conversion_factor.
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Output:
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@verbatim
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//[conversion_factor_output
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1e-005
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100
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1e-005
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100
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0.01
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//]
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@endverbatim
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**/
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#include <iostream>
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#include <boost/units/cmath.hpp>
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#include <boost/units/io.hpp>
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#include <boost/units/quantity.hpp>
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#include <boost/units/systems/cgs/acceleration.hpp>
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#include <boost/units/systems/si/acceleration.hpp>
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#include <boost/units/systems/si/force.hpp>
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#include <boost/units/systems/cgs/force.hpp>
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#include <boost/units/systems/si/mass.hpp>
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#include <boost/units/systems/cgs/mass.hpp>
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#include <boost/units/systems/si/momentum.hpp>
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#include <boost/units/systems/cgs/momentum.hpp>
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int main()
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{
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using namespace boost;
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using namespace boost::units;
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//[conversion_factor_snippet_1
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double dyne_to_newton =
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conversion_factor(cgs::dyne,si::newton);
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std::cout << dyne_to_newton << std::endl;
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double force_over_mass_conversion =
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conversion_factor(si::newton/si::kilogram,cgs::dyne/cgs::gram);
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std::cout << force_over_mass_conversion << std::endl;
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double momentum_conversion =
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conversion_factor(cgs::momentum(),si::momentum());
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std::cout << momentum_conversion << std::endl;
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double momentum_over_mass_conversion =
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conversion_factor(si::momentum()/si::mass(),cgs::momentum()/cgs::gram);
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std::cout << momentum_over_mass_conversion << std::endl;
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double acceleration_conversion =
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conversion_factor(cgs::gal,si::meter_per_second_squared);
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std::cout << acceleration_conversion << std::endl;
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//]
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return 0;
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}
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