1 /* Copyright (c) 2002,2003 CrystalClear Software, Inc.
2 * Use, modification and distribution is subject to the
3 * Boost Software License, Version 1.0. (See accompanying
4 * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
5 * Author: Jeff Garland, Bart Garst
6 */
7
8 #include "boost/date_time/int_adapter.hpp"
9 #include "testfrmwk.hpp"
10 #include "boost/cstdint.hpp"
11 #include <iostream>
12 #include <sstream>
13
14 template<typename int_type>
print()15 void print()
16 {
17 //MSVC 6 has problems with this, but it's not really important
18 //so we will just skip them....
19 #if (defined(BOOST_DATE_TIME_NO_LOCALE)) || (defined(BOOST_MSVC) && (_MSC_VER < 1300))
20
21 #else
22 std::cout << "min: " << (int_type::min)().as_number() << std::endl;
23 std::cout << "max: " << (int_type::max)().as_number() << std::endl;
24 std::cout << "neg_infin: " <<
25 int_type::neg_infinity().as_number() << std::endl;
26 std::cout << "pos_infin: " <<
27 int_type::pos_infinity().as_number() << std::endl;
28 std::cout << "not a number: " <<
29 int_type::not_a_number().as_number() << std::endl;
30 std::stringstream ss("");
31 std::string s("");
32 int_type i = int_type::neg_infinity();
33 ss << i;
34 s = "-infinity";
35 check("streaming -infinity", ss.str() == s);
36
37 i = int_type::pos_infinity();
38 ss.str("");
39 ss << i;
40 s = "+infinity";
41 check("streaming +infinity", ss.str() == s);
42
43 i = int_type::not_a_number();
44 ss.str("");
45 ss << i;
46 s = "not-a-number";
47 check("streaming nan", ss.str() == s);
48
49 i = 12;
50 ss.str("");
51 ss << i;
52 s = "12";
53 check("streaming digits", ss.str() == s);
54 #endif
55 }
56
57
58 template<typename int_type>
test_int()59 void test_int()
60 {
61 int_type i = int_type::neg_infinity();
62
63 check("is infinity", i.is_infinity());
64 check("is special_value (neg_inf)", i.is_special());
65 check("as_special convert", boost::date_time::neg_infin == i.as_special() );
66 check("as_special convert", boost::date_time::neg_infin == int_type::to_special(i.as_number()) );
67 int_type h = int_type::neg_infinity();
68 i = int_type::pos_infinity();
69 check("is infinity", i.is_infinity());
70 check("as_special convert", boost::date_time::pos_infin == i.as_special() );
71 check("infinity less", h < i);
72 check("infinity less", h < 0);
73 check("infinity greater", i > h);
74 check("infinity greater", i > 0);
75 h = int_type::not_a_number();
76 check("nan less", !(h < 0));
77 check("nan greater", !(h > 0));
78 check("nan equal", h == int_type::not_a_number());
79 i = 1;
80 check("is infinity", !i.is_infinity());
81 int_type j = int_type::neg_infinity();
82 check("infinity less", j < i);
83 check("infinity less", !(j < j));
84 check("infinity greater", (i > j));
85 check("infinity equal", !(j == i));
86 check("infinity equal", j == j);
87 check("infinity equal", !(j == 0));
88 check("infinity not equal", j != 0);
89
90 int_type k = 1;
91 check("as_special convert", boost::date_time::not_special == k.as_special() );
92 check("equal", i == k);
93 check("infinity not equal", i != int_type::neg_infinity());
94 check("infinity not equal", i != int_type::pos_infinity());
95 int_type l = i + int_type::pos_infinity();
96 check("is special_value (pos_inf)", l.is_special());
97 check("add infinity" , l == int_type::pos_infinity());
98 { // limiting the scope for these tests was easier than recalculating l
99 int_type m = i - int_type::pos_infinity();
100 check("value - +infinity", m == int_type::neg_infinity());
101 m = i + int_type::neg_infinity();
102 check("value + -infinity", m == int_type::neg_infinity());
103 }
104 check("inf - inf = nan", (l - l) == int_type::not_a_number());
105 check("-inf + inf = nan", (j + l) == int_type::not_a_number());
106 check("add 2", (i + 2) == 3);
107 i = int_type::not_a_number();
108 check("+inf * integer", (l * 2) == l);
109 check("+inf / integer", (l / 2) == l);
110 check("+inf % -integer", (l % -2) == j);
111 check("+inf % integer", (l % 2) == l);
112 check("+inf / -integer", (l / -2) == j);
113 check("+inf * -integer", (l * -2) == j);
114 check("+inf * -inf", (l * j) == j);
115 check("+inf / +inf", (l / l) == i);
116 check("+inf % +inf", (l % l) == i);
117 check("+inf * zero", (l * 0) == i);
118 check("is special_value (nan)", i.is_special());
119 check("as_special convert", boost::date_time::not_a_date_time == i.as_special() );
120 check("add not a number", (i + 2) == int_type::not_a_number());
121 check("sub not a number", (i - 2) == int_type::not_a_number());
122 check("sub from infin", (l - 2) == int_type::pos_infinity());
123 i = 5;
124 h = 3;
125 check("add zero ", (i + 0) == 5);
126 check("sub from 5-2 ", (i - 2) == 3);
127 check("remainder from 5/2 ", (i % 2) == 1);
128 check("remainder from 5/3 ", (i % h) == 2);
129 // std::cout << i.as_number() << std::endl;
130 check("from special ",
131 int_type::from_special(boost::date_time::pos_infin) == int_type::pos_infinity());
132 check("from special ",
133 int_type::from_special(boost::date_time::neg_infin) == int_type::neg_infinity());
134 check("from special ",
135 int_type::from_special(boost::date_time::not_a_date_time) == int_type::not_a_number());
136 check("from special ",
137 int_type::from_special(boost::date_time::min_date_time) == (int_type::min)());
138 check("from special ",
139 int_type::from_special(boost::date_time::max_date_time) == (int_type::max)());
140 }
141
142 int
main()143 main()
144 {
145 using namespace boost::date_time;
146
147 print< int_adapter<unsigned long> >();
148 test_int< int_adapter<unsigned long> >();
149 print< int_adapter<long> >();
150 test_int< int_adapter<long> >();
151 print< int_adapter<boost::int64_t> >();
152 test_int< int_adapter<boost::int64_t> >();
153
154
155 return printTestStats();
156
157 }
158
159