Update of /cvsroot/boost-sandbox/boost-sandbox/libs/units/example
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv1588
Added Files:
unit_example_22.cpp
Log Message:
miscellaneous examples demonstrating questions arising during Boost review
--- NEW FILE: unit_example_22.cpp ---
// mcs::units - A C++ library for zero-overhead dimensional analysis and
// unit/quantity manipulation and conversion
//
// Copyright (C) 2003-2007 Matthias Christian Schabel
// Copyright (C) 2007 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 unit_example_22.cpp
\detailed Another example of defining units.
Output:
@verbatim
//[unit_example_22_output
kg s^(-3) K^(-1)
kg s^(-3) K^(-1)
1 kg s^(-3) K^(-1)
//]
@endverbatim
**/
/*
#include <iostream>
#include <boost/units/io.hpp>
#include <boost/units/unit.hpp>
#include <boost/units/quantity.hpp>
#include <boost/units/systems/si.hpp>
using namespace boost::units;
using namespace boost::units::SI;
typedef quantity<power> power_t;
typedef quantity<area> area_t;
typedef quantity<temperature> temp_diff_t;
typedef typeof(watts/kelvin/pow<2>(meter)) heat_transfer_coefficient_unit_type;
typedef quantity<heat_transfer_coefficient_unit_type> heat_transfer_coefficient_t;
int main()
{
const heat_transfer_coefficient_t watts_per_square_meter_per_kelvin = 1.0*watts/square_meter/kelvin;
std::cout << watts/kelvin/pow<2>(meter) << std::endl;
std::cout << heat_transfer_coefficient_unit_type() << std::endl
<< watts_per_square_meter_per_kelvin << std::endl
<< std::endl;
return 0;
}
*/
/*
#include <iostream>
#include <boost/numeric/ublas/vector.hpp>
//#include <boost/test/test_tools.hpp>
//#include <boost/test/floating_point_comparison.hpp>
#include <boost/units/io.hpp>
#include <boost/units/unit.hpp>
#include <boost/units/quantity.hpp>
#include <boost/units/systems/si.hpp>
using namespace boost::units;
using namespace boost::units::SI;
int main()
{
// quantity<SI::length> a,b;
//
// BOOST_CHECK_CLOSE(a.value(),b.value(),0.1);
//typedef double Type;
typedef quantity<SI::length> Type;
boost::numeric::ublas::vector<Type> v(3);
v *= 2.0;
//v*2.0;
return 0;
}
*/
/*
#include <iostream>
#include <boost/any.hpp>
#include <boost/numeric/ublas/vector.hpp>
#include <boost/units/io.hpp>
#include <boost/units/unit.hpp>
#include <boost/units/quantity.hpp>
#include <boost/units/systems/si.hpp>
using namespace boost::units;
using namespace boost::units::SI;
int main()
{
boost::numeric::ublas::vector<boost::any> v(3);
v(0) = boost::any(quantity<SI::length>(3.0*meters));
v(1) = boost::any(quantity<SI::mass>(3.0*kilograms));
v(2) = boost::any(quantity<SI::time>(3.0*seconds));
std::cout << boost::any_cast< quantity<SI::length> >(v(0)) << std::endl;
std::cout << boost::any_cast< quantity<SI::mass> >(v(1)) << std::endl;
std::cout << boost::any_cast< quantity<SI::time> >(v(2)) << std::endl;
std::cout << boost::any_cast< quantity<SI::mass> >(v(0)) << std::endl;
return 0;
}
*/
#include <iostream>
#include <boost/units/io.hpp>
#include <boost/units/systems/si.hpp>
#include <boost/units/systems/cgs.hpp>
#include <boost/units/systems/si/prefixes.hpp>
using namespace boost::units;
int main()
{
quantity<CGS::force> F0 = 20 * CGS::dyne;
quantity<SI::force> F1 = quantity_cast<SI::force>(F0);
quantity<SI::force> F2 = quantity_cast<SI::force>(20 * CGS::dyne);
quantity<SI::force> F3(F0);
// quantity<SI::force> F4 = F0;
quantity<SI::force> F5(20 * CGS::dyne);
// quantity<SI::force> F6 = 20 * CGS::dyne;
std::cout << F1 << std::endl
<< F2 << std::endl
<< F3 << std::endl
<< F5 << std::endl
<< std::endl;
quantity_reinterpret_cast<double&>(F1) = 1.5;
std::cout << F1 << std::endl;
return 0;
}
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