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
17 Test implicit conversions for quantity.
18 
19 Output:
20 @verbatim
21 @endverbatim
22 **/
23 
24 #include <boost/test/minimal.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 
31 namespace bu = boost::units;
32 
test_main(int,char * [])33 int test_main(int,char *[])
34 {
35     //// si->si always true
36     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::length_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
37     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::mass_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
38     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::time_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
39     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::current_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
40     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::temperature_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
41     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::amount_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
42     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::luminous_intensity_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
43     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::plane_angle_base_dimension,bu::si::system_tag,bu::si::system_tag>::value == true));
44     //BOOST_CHECK((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_CHECK((bu::base_unit_is_implicitly_convertible<bu::length_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
48     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::mass_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
49     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::time_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
50     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::current_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
51     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::temperature_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
52     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::amount_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
53     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::luminous_intensity_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
54     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::plane_angle_base_dimension,bu::cgs::system_tag,bu::cgs::system_tag>::value == true));
55     //BOOST_CHECK((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_CHECK((bu::base_unit_is_implicitly_convertible<bu::length_base_dimension,bu::si::system_tag,bu::cgs::system_tag>::value == false));
59     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::mass_base_dimension,bu::si::system_tag,bu::cgs::system_tag>::value == false));
60     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::time_base_dimension,bu::si::system_tag,bu::cgs::system_tag>::value == true));
61 
62     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::length,bu::cgs::length>::value == false));
63     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::mass,bu::cgs::mass>::value == false));
64     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::time,bu::cgs::time>::value == true));
65 
66     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::acceleration,bu::cgs::acceleration>::value == false));
67     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::area,bu::cgs::area>::value == false));
68     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::energy,bu::cgs::energy>::value == false));
69     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::force,bu::cgs::force>::value == false));
70     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::frequency,bu::cgs::frequency>::value == true));
71     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::mass_density,bu::cgs::mass_density>::value == false));
72     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::momentum,bu::cgs::momentum>::value == false));
73     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::power,bu::cgs::power>::value == false));
74     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::pressure,bu::cgs::pressure>::value == false));
75     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::velocity,bu::cgs::velocity>::value == false));
76     BOOST_CHECK((bu::is_implicitly_convertible<bu::si::wavenumber,bu::cgs::wavenumber>::value == false));
77 
78     //// cgs->si
79     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::length_base_dimension,bu::cgs::system_tag,bu::si::system_tag>::value == false));
80     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::mass_base_dimension,bu::cgs::system_tag,bu::si::system_tag>::value == false));
81     //BOOST_CHECK((bu::base_unit_is_implicitly_convertible<bu::time_base_dimension,bu::cgs::system_tag,bu::si::system_tag>::value == true));
82 
83     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::length,bu::si::length>::value == false));
84     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::mass,bu::si::mass>::value == false));
85     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::time,bu::si::time>::value == true));
86 
87     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::acceleration,bu::si::acceleration>::value == false));
88     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::area,bu::si::area>::value == false));
89     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::energy,bu::si::energy>::value == false));
90     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::force,bu::si::force>::value == false));
91     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::frequency,bu::si::frequency>::value == true));
92     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::mass_density,bu::si::mass_density>::value == false));
93     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::momentum,bu::si::momentum>::value == false));
94     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::power,bu::si::power>::value == false));
95     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::pressure,bu::si::pressure>::value == false));
96     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::velocity,bu::si::velocity>::value == false));
97     BOOST_CHECK((bu::is_implicitly_convertible<bu::cgs::wavenumber,bu::si::wavenumber>::value == false));
98 
99     const bu::quantity<bu::si::time>    S1(2.0*bu::si::seconds);
100     const bu::quantity<bu::cgs::time>   S2 = S1;
101 
102     BOOST_CHECK((S1.value() == S2.value()));
103 
104     const bu::quantity<bu::si::catalytic_activity>  S3(2.0*bu::si::catalytic_activity());
105 
106 
107     const bu::quantity<bu::cgs::time>   C1(2.0*bu::cgs::seconds);
108     const bu::quantity<bu::si::time>    C2 = C1;
109 
110     BOOST_CHECK((C1.value() == C2.value()));
111 
112     return 0;
113 }
114