1 /* $NetBSD: t_asin.c,v 1.3 2014/03/03 10:39:08 martin Exp $ */
2
3 /*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <atf-c.h>
33 #include <math.h>
34
35 static const struct {
36 double x;
37 double y;
38 } values[] = {
39 { -1.0, -M_PI / 2, },
40 { -0.9, -1.119769514998634, },
41 { -0.5, -M_PI / 6, },
42 { -0.1, -0.1001674211615598, },
43 { 0.1, 0.1001674211615598, },
44 { 0.5, M_PI / 6, },
45 { 0.9, 1.119769514998634, },
46 { 1.0, M_PI / 2, },
47 };
48
49 /*
50 * asin(3)
51 */
52 ATF_TC(asin_nan);
ATF_TC_HEAD(asin_nan,tc)53 ATF_TC_HEAD(asin_nan, tc)
54 {
55 atf_tc_set_md_var(tc, "descr", "Test asin(NaN) == NaN");
56 }
57
ATF_TC_BODY(asin_nan,tc)58 ATF_TC_BODY(asin_nan, tc)
59 {
60 const double x = 0.0L / 0.0L;
61
62 if (isnan(asin(x)) == 0)
63 atf_tc_fail_nonfatal("asin(NaN) != NaN");
64 }
65
66 ATF_TC(asin_inf_neg);
ATF_TC_HEAD(asin_inf_neg,tc)67 ATF_TC_HEAD(asin_inf_neg, tc)
68 {
69 atf_tc_set_md_var(tc, "descr", "Test asin(-Inf) == NaN");
70 }
71
ATF_TC_BODY(asin_inf_neg,tc)72 ATF_TC_BODY(asin_inf_neg, tc)
73 {
74 const double x = -1.0L / 0.0L;
75
76 if (isnan(asin(x)) == 0)
77 atf_tc_fail_nonfatal("asin(-Inf) != NaN");
78 }
79
80 ATF_TC(asin_inf_pos);
ATF_TC_HEAD(asin_inf_pos,tc)81 ATF_TC_HEAD(asin_inf_pos, tc)
82 {
83 atf_tc_set_md_var(tc, "descr", "Test asin(+Inf) == NaN");
84 }
85
ATF_TC_BODY(asin_inf_pos,tc)86 ATF_TC_BODY(asin_inf_pos, tc)
87 {
88 const double x = 1.0L / 0.0L;
89
90 if (isnan(asin(x)) == 0)
91 atf_tc_fail_nonfatal("asin(+Inf) != NaN");
92 }
93
94 ATF_TC(asin_range);
ATF_TC_HEAD(asin_range,tc)95 ATF_TC_HEAD(asin_range, tc)
96 {
97 atf_tc_set_md_var(tc, "descr", "Test asin(x) == NaN, x < -1, x > 1");
98 }
99
ATF_TC_BODY(asin_range,tc)100 ATF_TC_BODY(asin_range, tc)
101 {
102 const double x[] = { -1.1, -1.000000001, 1.1, 1.000000001 };
103 size_t i;
104
105 for (i = 0; i < __arraycount(x); i++) {
106
107 if (isnan(asin(x[i])) == 0)
108 atf_tc_fail_nonfatal("asin(%f) != NaN", x[i]);
109 }
110 }
111
112 ATF_TC(asin_inrange);
ATF_TC_HEAD(asin_inrange,tc)113 ATF_TC_HEAD(asin_inrange, tc)
114 {
115 atf_tc_set_md_var(tc, "descr", "Test asin(x) for some values");
116 }
117
ATF_TC_BODY(asin_inrange,tc)118 ATF_TC_BODY(asin_inrange, tc)
119 {
120 const double eps = 1.0e-15;
121 double y;
122 size_t i;
123
124 for (i = 0; i < __arraycount(values); i++) {
125 y = asin(values[i].x);
126 if (fabs(y - values[i].y) > eps)
127 atf_tc_fail_nonfatal("asin(%g) != %g",
128 values[i].x, values[i].y);
129 }
130 }
131
132 ATF_TC(asin_zero_neg);
ATF_TC_HEAD(asin_zero_neg,tc)133 ATF_TC_HEAD(asin_zero_neg, tc)
134 {
135 atf_tc_set_md_var(tc, "descr", "Test asin(-0.0) == -0.0");
136 }
137
ATF_TC_BODY(asin_zero_neg,tc)138 ATF_TC_BODY(asin_zero_neg, tc)
139 {
140 const double x = -0.0L;
141 double y = asin(x);
142
143 if (fabs(y) > 0.0 || signbit(y) == 0)
144 atf_tc_fail_nonfatal("asin(-0.0) != -0.0");
145 }
146
147 ATF_TC(asin_zero_pos);
ATF_TC_HEAD(asin_zero_pos,tc)148 ATF_TC_HEAD(asin_zero_pos, tc)
149 {
150 atf_tc_set_md_var(tc, "descr", "Test asin(+0.0) == +0.0");
151 }
152
ATF_TC_BODY(asin_zero_pos,tc)153 ATF_TC_BODY(asin_zero_pos, tc)
154 {
155 const double x = 0.0L;
156 double y = asin(x);
157
158 if (fabs(y) > 0.0 || signbit(y) != 0)
159 atf_tc_fail_nonfatal("asin(+0.0) != +0.0");
160 }
161
162 /*
163 * asinf(3)
164 */
165 ATF_TC(asinf_nan);
ATF_TC_HEAD(asinf_nan,tc)166 ATF_TC_HEAD(asinf_nan, tc)
167 {
168 atf_tc_set_md_var(tc, "descr", "Test asinf(NaN) == NaN");
169 }
170
ATF_TC_BODY(asinf_nan,tc)171 ATF_TC_BODY(asinf_nan, tc)
172 {
173 const float x = 0.0L / 0.0L;
174
175 if (isnan(asinf(x)) == 0)
176 atf_tc_fail_nonfatal("asinf(NaN) != NaN");
177 }
178
179 ATF_TC(asinf_inf_neg);
ATF_TC_HEAD(asinf_inf_neg,tc)180 ATF_TC_HEAD(asinf_inf_neg, tc)
181 {
182 atf_tc_set_md_var(tc, "descr", "Test asinf(-Inf) == NaN");
183 }
184
ATF_TC_BODY(asinf_inf_neg,tc)185 ATF_TC_BODY(asinf_inf_neg, tc)
186 {
187 const float x = -1.0L / 0.0L;
188
189 if (isnan(asinf(x)) == 0)
190 atf_tc_fail_nonfatal("asinf(-Inf) != NaN");
191 }
192
193 ATF_TC(asinf_inf_pos);
ATF_TC_HEAD(asinf_inf_pos,tc)194 ATF_TC_HEAD(asinf_inf_pos, tc)
195 {
196 atf_tc_set_md_var(tc, "descr", "Test asinf(+Inf) == NaN");
197 }
198
ATF_TC_BODY(asinf_inf_pos,tc)199 ATF_TC_BODY(asinf_inf_pos, tc)
200 {
201 const float x = 1.0L / 0.0L;
202
203 if (isnan(asinf(x)) == 0)
204 atf_tc_fail_nonfatal("asinf(+Inf) != NaN");
205 }
206
207 ATF_TC(asinf_range);
ATF_TC_HEAD(asinf_range,tc)208 ATF_TC_HEAD(asinf_range, tc)
209 {
210 atf_tc_set_md_var(tc, "descr", "Test asinf(x) == NaN, x < -1, x > 1");
211 }
212
ATF_TC_BODY(asinf_range,tc)213 ATF_TC_BODY(asinf_range, tc)
214 {
215 const float x[] = { -1.1, -1.0000001, 1.1, 1.0000001 };
216 size_t i;
217
218 for (i = 0; i < __arraycount(x); i++) {
219
220 if (isnan(asinf(x[i])) == 0)
221 atf_tc_fail_nonfatal("asinf(%f) != NaN", x[i]);
222 }
223 }
224
225 ATF_TC(asinf_inrange);
ATF_TC_HEAD(asinf_inrange,tc)226 ATF_TC_HEAD(asinf_inrange, tc)
227 {
228 atf_tc_set_md_var(tc, "descr", "Test asinf(x) for some values");
229 }
230
ATF_TC_BODY(asinf_inrange,tc)231 ATF_TC_BODY(asinf_inrange, tc)
232 {
233 const float eps = 1.0e-6;
234 float x;
235 float y;
236 size_t i;
237
238 for (i = 0; i < __arraycount(values); i++) {
239 x = values[i].x;
240 y = values[i].y;
241 if (fabs(asinf(x) - y) > eps)
242 atf_tc_fail_nonfatal("asinf(%g) != %g", x, y);
243 }
244 }
245
246 ATF_TC(asinf_zero_neg);
ATF_TC_HEAD(asinf_zero_neg,tc)247 ATF_TC_HEAD(asinf_zero_neg, tc)
248 {
249 atf_tc_set_md_var(tc, "descr", "Test asinf(-0.0) == -0.0");
250 }
251
ATF_TC_BODY(asinf_zero_neg,tc)252 ATF_TC_BODY(asinf_zero_neg, tc)
253 {
254 const float x = -0.0L;
255 float y = asinf(x);
256
257 if (fabsf(y) > 0.0 || signbit(y) == 0)
258 atf_tc_fail_nonfatal("asinf(-0.0) != -0.0");
259 }
260
261 ATF_TC(asinf_zero_pos);
ATF_TC_HEAD(asinf_zero_pos,tc)262 ATF_TC_HEAD(asinf_zero_pos, tc)
263 {
264 atf_tc_set_md_var(tc, "descr", "Test asinf(+0.0) == +0.0");
265 }
266
ATF_TC_BODY(asinf_zero_pos,tc)267 ATF_TC_BODY(asinf_zero_pos, tc)
268 {
269 const float x = 0.0L;
270 float y = asinf(x);
271
272 if (fabsf(y) > 0.0 || signbit(y) != 0)
273 atf_tc_fail_nonfatal("asinf(+0.0) != +0.0");
274 }
275
ATF_TP_ADD_TCS(tp)276 ATF_TP_ADD_TCS(tp)
277 {
278
279 ATF_TP_ADD_TC(tp, asin_nan);
280 ATF_TP_ADD_TC(tp, asin_inf_neg);
281 ATF_TP_ADD_TC(tp, asin_inf_pos);
282 ATF_TP_ADD_TC(tp, asin_range);
283 ATF_TP_ADD_TC(tp, asin_inrange);
284 ATF_TP_ADD_TC(tp, asin_zero_neg);
285 ATF_TP_ADD_TC(tp, asin_zero_pos);
286
287 ATF_TP_ADD_TC(tp, asinf_nan);
288 ATF_TP_ADD_TC(tp, asinf_inf_neg);
289 ATF_TP_ADD_TC(tp, asinf_inf_pos);
290 ATF_TP_ADD_TC(tp, asinf_range);
291 ATF_TP_ADD_TC(tp, asinf_inrange);
292 ATF_TP_ADD_TC(tp, asinf_zero_neg);
293 ATF_TP_ADD_TC(tp, asinf_zero_pos);
294
295 return atf_no_error();
296 }
297