| // 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 test_absolute.cpp |
| |
| \details |
| Test absolute units. |
| |
| Output: |
| @verbatim |
| @endverbatim |
| **/ |
| |
| #include <boost/units/quantity.hpp> |
| #include <boost/units/absolute.hpp> |
| #include <boost/units/unit.hpp> |
| #include <boost/units/make_system.hpp> |
| #include <boost/units/physical_dimensions.hpp> |
| #include <boost/units/base_units/si/kelvin.hpp> |
| #include <boost/units/base_units/temperature/celsius.hpp> |
| #include <boost/units/base_units/temperature/fahrenheit.hpp> |
| |
| #include <iostream> |
| |
| #include <boost/test/minimal.hpp> |
| |
| #define BOOST_UNITS_CHECK_CLOSE(a, b) (BOOST_CHECK((std::abs((a) - (b)) < .0000001))) |
| |
| namespace bu = boost::units; |
| using bu::si::kelvin_base_unit; |
| using bu::temperature::celsius_base_unit; |
| using bu::temperature::fahrenheit_base_unit; |
| |
| typedef bu::unit<bu::temperature_dimension,bu::make_system<kelvin_base_unit>::type> kelvin_type; |
| |
| typedef bu::unit<bu::temperature_dimension,bu::make_system<celsius_base_unit>::type> celsius_type; |
| |
| typedef bu::unit<bu::temperature_dimension,bu::make_system<fahrenheit_base_unit>::type> fahrenheit_type; |
| |
| int test_main(int,char *[]) |
| { |
| bu::quantity<bu::absolute<fahrenheit_type> > q1(212.0 * bu::absolute<fahrenheit_type>()); |
| bu::quantity<bu::absolute<celsius_type> > q2(0.0 * bu::absolute<celsius_type>()); |
| bu::quantity<bu::absolute<fahrenheit_type> > q3(q2); |
| bu::quantity<fahrenheit_type> q4(q1 - q3); |
| |
| BOOST_UNITS_CHECK_CLOSE(q4.value(), 180.0); |
| |
| bu::quantity<bu::absolute<kelvin_type> > q5(static_cast<bu::quantity<kelvin_type> >(q4) + static_cast<bu::quantity<bu::absolute<kelvin_type> > >(q2)); |
| |
| BOOST_UNITS_CHECK_CLOSE(q5.value(), 373.15); |
| |
| bu::quantity<bu::absolute<fahrenheit_type> > q6(q5); |
| |
| BOOST_UNITS_CHECK_CLOSE(q6.value(), 212.0); |
| |
| return(0); |
| } |