Ticket #6752: test_cmath.cpp

File test_cmath.cpp, 6.2 KB (added by anonymous, 11 years ago)
Line 
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_units_1.cpp
15
16\details
17Test unit class.
18
19Output:
20@verbatim
21@endverbatim
22**/
23
24#include <limits>
25
26#include <boost/units/cmath.hpp>
27
28#include "test_header.hpp"
29
30namespace bu = boost::units;
31
32static volatile double zero = 0;
33
34int test_main(int,char *[])
35{
36 double inf = std::numeric_limits<double>::infinity(),
37 nan = 0.0/zero;
38
39 // default constructor
40 const bu::quantity<bu::energy> E1(0.0*bu::joules),
41 E2(inf*bu::joules),
42 E3(nan*bu::joules);
43
44 BOOST_CHECK((bu::isfinite)(E1) == true);
45 BOOST_CHECK((bu::isfinite)(E2) == false);
46 BOOST_CHECK((bu::isfinite)(E3) == false);
47
48 BOOST_CHECK((bu::isinf)(E1) == false);
49 BOOST_CHECK((bu::isinf)(E2) == true);
50 BOOST_CHECK((bu::isinf)(E3) == false);
51
52 BOOST_CHECK((bu::isnan)(E1) == false);
53 BOOST_CHECK((bu::isnan)(E2) == false);
54 BOOST_CHECK((bu::isnan)(E3) == true);
55
56 BOOST_CHECK((bu::isnormal)(E1) == false);
57 BOOST_CHECK((bu::isnormal)(E2) == false);
58 BOOST_CHECK((bu::isnormal)(E3) == false);
59
60 const bu::quantity<bu::energy> E4(-2.5*bu::joules),
61 E5(2.5*bu::joules);
62
63 BOOST_CHECK((bu::isgreater)(E4,E5) == false);
64 BOOST_CHECK((bu::isgreater)(E5,E4) == true);
65 BOOST_CHECK((bu::isgreater)(E4,E4) == false);
66 BOOST_CHECK((bu::isgreater)(E3,E4) == false);
67 BOOST_CHECK((bu::isgreater)(E4,E3) == false);
68
69 BOOST_CHECK((bu::isgreaterequal)(E4,E5) == false);
70 BOOST_CHECK((bu::isgreaterequal)(E5,E4) == true);
71 BOOST_CHECK((bu::isgreaterequal)(E4,E4) == true);
72 BOOST_CHECK((bu::isgreaterequal)(E3,E4) == false);
73 BOOST_CHECK((bu::isgreaterequal)(E4,E3) == false);
74
75 BOOST_CHECK((bu::isless)(E4,E5) == true);
76 BOOST_CHECK((bu::isless)(E5,E4) == false);
77 BOOST_CHECK((bu::isless)(E4,E4) == false);
78 BOOST_CHECK((bu::isless)(E3,E4) == false);
79 BOOST_CHECK((bu::isless)(E4,E3) == false);
80
81 BOOST_CHECK((bu::islessequal)(E4,E5) == true);
82 BOOST_CHECK((bu::islessequal)(E5,E4) == false);
83 BOOST_CHECK((bu::islessequal)(E4,E4) == true);
84 BOOST_CHECK((bu::islessequal)(E3,E4) == false);
85 BOOST_CHECK((bu::islessequal)(E4,E3) == false);
86
87 BOOST_CHECK((bu::islessgreater)(E4,E5) == true);
88 BOOST_CHECK((bu::islessgreater)(E5,E4) == true);
89 BOOST_CHECK((bu::islessgreater)(E4,E4) == false);
90 BOOST_CHECK((bu::islessgreater)(E3,E4) == false);
91 BOOST_CHECK((bu::islessgreater)(E4,E3) == false);
92
93 BOOST_CHECK((bu::isunordered)(E4,E5) == false);
94 BOOST_CHECK((bu::isunordered)(E5,E4) == false);
95 BOOST_CHECK((bu::isunordered)(E4,E4) == false);
96 BOOST_CHECK((bu::isunordered)(E3,E4) == true);
97 BOOST_CHECK((bu::isunordered)(E4,E3) == true);
98
99 BOOST_CHECK((bu::abs)(E4) == E5);
100 BOOST_CHECK((bu::ceil)(E4) == -2.0*bu::joules);
101 BOOST_CHECK((bu::copysign)(E4,E5) == E5);
102 BOOST_CHECK((bu::fabs)(E4) == E5);
103 BOOST_CHECK((bu::floor)(E4) == -3.0*bu::joules);
104 BOOST_CHECK((bu::fdim)(E4,E5) == 0.0*bu::joules);
105 BOOST_CHECK((bu::fdim)(E5,E4) == E5-E4);
106
107 const bu::quantity<bu::length> L1(3.0*bu::meters),
108 L2(4.0*bu::meters);
109 const bu::quantity<bu::area> A1(4.0*bu::square_meters),
110 A2(L1*L2+A1);
111 const bu::quantity<bu::volume> V1(8.0*bu::cubic_meters);
112
113#if 0
114 BOOST_CHECK((bu::fma)(L1,L2,A1) == A2);
115#endif
116
117 BOOST_CHECK((bu::fmax)(E4,E5) == E5);
118 BOOST_CHECK((bu::fmin)(E4,E5) == E4);
119
120 // need to test fpclassify
121
122 BOOST_CHECK(bu::hypot(L1,L2) == 5.0*bu::meters);
123
124#if 0
125
126// BOOST_CHECK(bu::llrint(E4).value() == bu::detail::llrint(E4.value()));
127// BOOST_CHECK(bu::llround(E4).value() == bu::detail::llround(E4.value()));
128 BOOST_CHECK((bu::nearbyint)(E4).value() == (bu::detail::nearbyint)(E4.value()));
129 BOOST_CHECK((bu::rint)(E4).value() == (bu::detail::rint)(E4.value()));
130
131#endif
132
133 BOOST_CHECK((bu::nextafter)(E4,E5).value() == (boost::math::nextafter)(E4.value(),E5.value()));
134 BOOST_CHECK((bu::nextafter)(E5,E4).value() == (boost::math::nextafter)(E5.value(),E4.value()));
135
136 BOOST_CHECK((bu::nexttoward)(E4,E5).value() == (boost::math::nextafter)(E4.value(),E5.value()));
137 BOOST_CHECK((bu::nexttoward)(E5,E4).value() == (boost::math::nextafter)(E5.value(),E4.value()));
138
139 BOOST_CHECK((bu::round)(E4 - 0.00000000001 * bu::joules) == -3.0*bu::joules);
140 BOOST_CHECK((bu::round)(E5 + 0.00000000001 * bu::joules) == 3.0*bu::joules);
141 BOOST_CHECK((bu::signbit)(E4) != 0);
142 BOOST_CHECK((bu::signbit)(E5) == 0);
143 BOOST_CHECK((bu::trunc)(E4) == -2.0*bu::joules);
144 BOOST_CHECK((bu::trunc)(E5) == 2.0*bu::joules);
145
146 BOOST_CHECK((bu::fmod)(E4,E5) == -0.0*bu::joules);
147
148 bu::quantity<bu::energy> pint;
149
150 BOOST_CHECK((bu::modf)(E4,&pint) == -0.5*bu::joules);
151 BOOST_CHECK(pint == -2.0*bu::joules);
152
153 int ex;
154 const bu::quantity<bu::energy> E6((bu::frexp)(E4,&ex));
155
156 BOOST_CHECK(E6 == -0.625*bu::joules);
157 BOOST_CHECK(ex == 2);
158 BOOST_CHECK((bu::ldexp)(E6,ex) == E4);
159
160 const bu::quantity<bu::dimensionless> E7(1.0);
161
162 BOOST_CHECK(bu::pow(E7,E7) == 1.0*1.0);
163
164 const bu::quantity<bu::dimensionless> E8((bu::exp)(E7));
165
166 BOOST_CHECK(std::abs(E8 - std::exp(1.0)) < .000001);
167 BOOST_CHECK(bu::log(E8) == E7);
168
169 const bu::quantity<bu::dimensionless> E9(100.0);
170
171 BOOST_CHECK(bu::log10(E9) == 2.0);
172
173 BOOST_CHECK(bu::sqrt(A1) == 2.0*bu::meters);
174
175 BOOST_CHECK(bu::cbrt(V1) == 2.0*bu::meters);
176
177 BOOST_CHECK(bu::min(L1,L2) == L1);
178
179 BOOST_CHECK(bu::max(L1,L2) == L2);
180
181 return 0;
182}