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gerrit-public.fairphone.software / platform / external / compiler-rt / 0797ff48ae6a585382b6ff8bda98dfa72874e4d0 / . / test / Unit / powidf2_test.c
blob: 2abc84de767651841b253ef747dd72196b68f904 [file] [log] [blame]
Daniel Dunbarb3a69012009-06-26 16:47:03 +0000[diff] [blame]1//===-- powidf2_test.cpp - Test __powidf2 ---------------------------------===//
2//
3// The LLVM Compiler Infrastructure
4//
Howard Hinnant9ad441f2010-11-16 22:13:33 +0000[diff] [blame]5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
Daniel Dunbarb3a69012009-06-26 16:47:03 +0000[diff] [blame]7//
8//===----------------------------------------------------------------------===//
9//
10// This file tests __powidf2 for the compiler_rt library.
11//
12//===----------------------------------------------------------------------===//
13
14#include "int_lib.h"
15#include <stdio.h>
16#include <math.h>
17
18// Returns: a ^ b
19
20double __powidf2(double a, si_int b);
21
22int test__powidf2(double a, si_int b, double expected)
23{
24 double x = __powidf2(a, b);
25 int correct = (x == expected) && (signbit(x) == signbit(expected));
26 if (!correct)
27 printf("error in __powidf2(%f, %d) = %f, expected %f\n",
28 a, b, x, expected);
29 return !correct;
30}
31
32int main()
33{
34 if (test__powidf2(0, 0, 1))
35 return 1;
36 if (test__powidf2(1, 0, 1))
37 return 1;
38 if (test__powidf2(1.5, 0, 1))
39 return 1;
40 if (test__powidf2(2, 0, 1))
41 return 1;
42 if (test__powidf2(INFINITY, 0, 1))
43 return 1;
44
45 if (test__powidf2(-0., 0, 1))
46 return 1;
47 if (test__powidf2(-1, 0, 1))
48 return 1;
49 if (test__powidf2(-1.5, 0, 1))
50 return 1;
51 if (test__powidf2(-2, 0, 1))
52 return 1;
53 if (test__powidf2(-INFINITY, 0, 1))
54 return 1;
55
56 if (test__powidf2(0, 1, 0))
57 return 1;
58 if (test__powidf2(0, 2, 0))
59 return 1;
60 if (test__powidf2(0, 3, 0))
61 return 1;
62 if (test__powidf2(0, 4, 0))
63 return 1;
64 if (test__powidf2(0, 0x7FFFFFFE, 0))
65 return 1;
66 if (test__powidf2(0, 0x7FFFFFFF, 0))
67 return 1;
68
69 if (test__powidf2(-0., 1, -0.))
70 return 1;
71 if (test__powidf2(-0., 2, 0))
72 return 1;
73 if (test__powidf2(-0., 3, -0.))
74 return 1;
75 if (test__powidf2(-0., 4, 0))
76 return 1;
77 if (test__powidf2(-0., 0x7FFFFFFE, 0))
78 return 1;
79 if (test__powidf2(-0., 0x7FFFFFFF, -0.))
80 return 1;
81
82 if (test__powidf2(1, 1, 1))
83 return 1;
84 if (test__powidf2(1, 2, 1))
85 return 1;
86 if (test__powidf2(1, 3, 1))
87 return 1;
88 if (test__powidf2(1, 4, 1))
89 return 1;
90 if (test__powidf2(1, 0x7FFFFFFE, 1))
91 return 1;
92 if (test__powidf2(1, 0x7FFFFFFF, 1))
93 return 1;
94
95 if (test__powidf2(INFINITY, 1, INFINITY))
96 return 1;
97 if (test__powidf2(INFINITY, 2, INFINITY))
98 return 1;
99 if (test__powidf2(INFINITY, 3, INFINITY))
100 return 1;
101 if (test__powidf2(INFINITY, 4, INFINITY))
102 return 1;
103 if (test__powidf2(INFINITY, 0x7FFFFFFE, INFINITY))
104 return 1;
105 if (test__powidf2(INFINITY, 0x7FFFFFFF, INFINITY))
106 return 1;
107
108 if (test__powidf2(-INFINITY, 1, -INFINITY))
109 return 1;
110 if (test__powidf2(-INFINITY, 2, INFINITY))
111 return 1;
112 if (test__powidf2(-INFINITY, 3, -INFINITY))
113 return 1;
114 if (test__powidf2(-INFINITY, 4, INFINITY))
115 return 1;
116 if (test__powidf2(-INFINITY, 0x7FFFFFFE, INFINITY))
117 return 1;
118 if (test__powidf2(-INFINITY, 0x7FFFFFFF, -INFINITY))
119 return 1;
120
121 if (test__powidf2(0, -1, INFINITY))
122 return 1;
123 if (test__powidf2(0, -2, INFINITY))
124 return 1;
125 if (test__powidf2(0, -3, INFINITY))
126 return 1;
127 if (test__powidf2(0, -4, INFINITY))
128 return 1;
129 if (test__powidf2(0, 0x80000002, INFINITY))
130 return 1;
131 if (test__powidf2(0, 0x80000001, INFINITY))
132 return 1;
133 if (test__powidf2(0, 0x80000000, INFINITY))
134 return 1;
135
136 if (test__powidf2(-0., -1, -INFINITY))
137 return 1;
138 if (test__powidf2(-0., -2, INFINITY))
139 return 1;
140 if (test__powidf2(-0., -3, -INFINITY))
141 return 1;
142 if (test__powidf2(-0., -4, INFINITY))
143 return 1;
144 if (test__powidf2(-0., 0x80000002, INFINITY))
145 return 1;
146 if (test__powidf2(-0., 0x80000001, -INFINITY))
147 return 1;
148 if (test__powidf2(-0., 0x80000000, INFINITY))
149 return 1;
150
151 if (test__powidf2(1, -1, 1))
152 return 1;
153 if (test__powidf2(1, -2, 1))
154 return 1;
155 if (test__powidf2(1, -3, 1))
156 return 1;
157 if (test__powidf2(1, -4, 1))
158 return 1;
159 if (test__powidf2(1, 0x80000002, 1))
160 return 1;
161 if (test__powidf2(1, 0x80000001, 1))
162 return 1;
163 if (test__powidf2(1, 0x80000000, 1))
164 return 1;
165
166 if (test__powidf2(INFINITY, -1, 0))
167 return 1;
168 if (test__powidf2(INFINITY, -2, 0))
169 return 1;
170 if (test__powidf2(INFINITY, -3, 0))
171 return 1;
172 if (test__powidf2(INFINITY, -4, 0))
173 return 1;
174 if (test__powidf2(INFINITY, 0x80000002, 0))
175 return 1;
176 if (test__powidf2(INFINITY, 0x80000001, 0))
177 return 1;
178 if (test__powidf2(INFINITY, 0x80000000, 0))
179 return 1;
180
181 if (test__powidf2(-INFINITY, -1, -0.))
182 return 1;
183 if (test__powidf2(-INFINITY, -2, 0))
184 return 1;
185 if (test__powidf2(-INFINITY, -3, -0.))
186 return 1;
187 if (test__powidf2(-INFINITY, -4, 0))
188 return 1;
189 if (test__powidf2(-INFINITY, 0x80000002, 0))
190 return 1;
191 if (test__powidf2(-INFINITY, 0x80000001, -0.))
192 return 1;
193 if (test__powidf2(-INFINITY, 0x80000000, 0))
194 return 1;
195
196 if (test__powidf2(2, 10, 1024.))
197 return 1;
198 if (test__powidf2(-2, 10, 1024.))
199 return 1;
200 if (test__powidf2(2, -10, 1/1024.))
201 return 1;
202 if (test__powidf2(-2, -10, 1/1024.))
203 return 1;
204
205 if (test__powidf2(2, 19, 524288.))
206 return 1;
207 if (test__powidf2(-2, 19, -524288.))
208 return 1;
209 if (test__powidf2(2, -19, 1/524288.))
210 return 1;
211 if (test__powidf2(-2, -19, -1/524288.))
212 return 1;
213
214 if (test__powidf2(2, 31, 2147483648.))
215 return 1;
216 if (test__powidf2(-2, 31, -2147483648.))
217 return 1;
218 if (test__powidf2(2, -31, 1/2147483648.))
219 return 1;
220 if (test__powidf2(-2, -31, -1/2147483648.))
221 return 1;
222
223 return 0;
224}