1// Boost.Units - A C++ library for zero-overhead dimensional analysis and
2// unit/quantity manipulation and conversion
3//
4// Copyright (C) 2003-2008 Matthias Christian Schabel
5// Copyright (C) 2008 Steven Watanabe
6//
7// Distributed under the Boost Software License, Version 1.0. (See
8// accompanying file LICENSE_1_0.txt or copy at
9// http://www.boost.org/LICENSE_1_0.txt)
10
11/**
12\file
13
14\brief test_implicit_conversion.cpp
15
16\details
17Test implicit conversions for quantity.
18
19Output:
20@verbatim
21@endverbatim
22**/
23
24#include <boost/core/lightweight_test.hpp>
25
26#include <boost/units/static_constant.hpp>
27#include <boost/units/quantity.hpp>
28#include <boost/units/systems/si.hpp>
29#include <boost/units/systems/cgs.hpp>
30
31namespace bu = boost::units;
32
33int main()
34{
35 //// si->si always true
36 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::length_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
37 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::mass_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
38 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::time_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
39 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::current_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
40 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::temperature_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
41 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::amount_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
42 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::luminous_intensity_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
43 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::plane_angle_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
44 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::solid_angle_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
45
46 //// cgs->cgs always true
47 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::length_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
48 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::mass_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
49 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::time_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
50 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::current_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
51 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::temperature_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
52 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::amount_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
53 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::luminous_intensity_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
54 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::plane_angle_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
55 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::solid_angle_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
56
57 //// si->cgs
58 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::length_base_dimension,bu::si::system_tag,bu::cgs::system_tag>::value == false));
59 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::mass_base_dimension,bu::si::system_tag,bu::cgs::system_tag>::value == false));
60 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::time_base_dimension,bu::si::system_tag,bu::cgs::system_tag>::value == true));
61
62 BOOST_TEST((bu::is_implicitly_convertible<bu::si::length,bu::cgs::length>::value == false));
63 BOOST_TEST((bu::is_implicitly_convertible<bu::si::mass,bu::cgs::mass>::value == false));
64 BOOST_TEST((bu::is_implicitly_convertible<bu::si::time,bu::cgs::time>::value == true));
65
66 BOOST_TEST((bu::is_implicitly_convertible<bu::si::acceleration,bu::cgs::acceleration>::value == false));
67 BOOST_TEST((bu::is_implicitly_convertible<bu::si::area,bu::cgs::area>::value == false));
68 BOOST_TEST((bu::is_implicitly_convertible<bu::si::energy,bu::cgs::energy>::value == false));
69 BOOST_TEST((bu::is_implicitly_convertible<bu::si::force,bu::cgs::force>::value == false));
70 BOOST_TEST((bu::is_implicitly_convertible<bu::si::frequency,bu::cgs::frequency>::value == true));
71 BOOST_TEST((bu::is_implicitly_convertible<bu::si::mass_density,bu::cgs::mass_density>::value == false));
72 BOOST_TEST((bu::is_implicitly_convertible<bu::si::momentum,bu::cgs::momentum>::value == false));
73 BOOST_TEST((bu::is_implicitly_convertible<bu::si::power,bu::cgs::power>::value == false));
74 BOOST_TEST((bu::is_implicitly_convertible<bu::si::pressure,bu::cgs::pressure>::value == false));
75 BOOST_TEST((bu::is_implicitly_convertible<bu::si::velocity,bu::cgs::velocity>::value == false));
76 BOOST_TEST((bu::is_implicitly_convertible<bu::si::wavenumber,bu::cgs::wavenumber>::value == false));
77
78 //// cgs->si
79 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::length_base_dimension,bu::cgs::system_tag,bu::si::system_tag>::value == false));
80 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::mass_base_dimension,bu::cgs::system_tag,bu::si::system_tag>::value == false));
81 //BOOST_TEST((bu::base_unit_is_implicitly_convertible<bu::time_base_dimension,bu::cgs::system_tag,bu::si::system_tag>::value == true));
82
83 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::length,bu::si::length>::value == false));
84 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::mass,bu::si::mass>::value == false));
85 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::time,bu::si::time>::value == true));
86
87 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::acceleration,bu::si::acceleration>::value == false));
88 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::area,bu::si::area>::value == false));
89 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::energy,bu::si::energy>::value == false));
90 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::force,bu::si::force>::value == false));
91 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::frequency,bu::si::frequency>::value == true));
92 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::mass_density,bu::si::mass_density>::value == false));
93 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::momentum,bu::si::momentum>::value == false));
94 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::power,bu::si::power>::value == false));
95 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::pressure,bu::si::pressure>::value == false));
96 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::velocity,bu::si::velocity>::value == false));
97 BOOST_TEST((bu::is_implicitly_convertible<bu::cgs::wavenumber,bu::si::wavenumber>::value == false));
98
99 BOOST_CONSTEXPR_OR_CONST bu::quantity<bu::si::time> S1(2.0*bu::si::seconds);
100 BOOST_CONSTEXPR_OR_CONST bu::quantity<bu::cgs::time> S2 = S1;
101
102 BOOST_TEST((S1.value() == S2.value()));
103
104 BOOST_CONSTEXPR_OR_CONST bu::quantity<bu::si::catalytic_activity> S3(2.0*bu::si::catalytic_activity());
105
106
107 BOOST_CONSTEXPR_OR_CONST bu::quantity<bu::cgs::time> C1(2.0*bu::cgs::seconds);
108 BOOST_CONSTEXPR_OR_CONST bu::quantity<bu::si::time> C2 = C1;
109
110 BOOST_TEST((C1.value() == C2.value()));
111
112 return boost::report_errors();
113}
114

source code of boost/libs/units/test/test_implicit_conversion.cpp