1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// 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
\detailed
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);
}
|
