1/* $NetBSD: t_sinh.c,v 1.7 2018/11/07 03:59:36 riastradh 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#include <sys/cdefs.h>
32__RCSID("$NetBSD: t_sinh.c,v 1.7 2018/11/07 03:59:36 riastradh Exp $");
33
34#include <atf-c.h>
35#include <float.h>
36#include <math.h>
37#include <stdio.h>
38
39static const struct {
40	double x;
41	double y;
42} values[] = {
43	{ -10,   -11013.232874703393, },
44	{ -2,    -3.626860407847019, },
45	{ -1,    -1.1752011936438014, },
46	{ -0.05, -0.050020835937655016, },
47	{ -0.001,-0.0010000001666666751, },
48	{  0.001, 0.0010000001666666751, },
49	{  0.05,  0.050020835937655016, },
50	{  1,     1.1752011936438014, },
51	{  2,     3.626860407847019, },
52	{  10,    11013.232874703393, },
53};
54
55/*
56 * sinh(3)
57 */
58ATF_TC(sinh_inrange);
59ATF_TC_HEAD(sinh_inrange, tc)
60{
61	atf_tc_set_md_var(tc, "descr", "sinh(x) for some values");
62}
63
64ATF_TC_BODY(sinh_inrange, tc)
65{
66	const double eps = DBL_EPSILON;
67	size_t i;
68
69	for (i = 0; i < __arraycount(values); i++) {
70		double x = values[i].x;
71		double sinh_x = values[i].y;
72
73		if (!(fabs((sinh(x) - sinh_x)/sinh_x) <= eps)) {
74			atf_tc_fail_nonfatal("sinh(%.17g) = %.17g != %.17g\n",
75			    x, sinh(x), sinh_x);
76		}
77	}
78}
79
80ATF_TC(sinh_nan);
81ATF_TC_HEAD(sinh_nan, tc)
82{
83	atf_tc_set_md_var(tc, "descr", "Test sinh(NaN) == NaN");
84}
85
86ATF_TC_BODY(sinh_nan, tc)
87{
88	const double x = 0.0L / 0.0L;
89
90	ATF_CHECK(isnan(x) != 0);
91	ATF_CHECK(isnan(sinh(x)) != 0);
92}
93
94ATF_TC(sinh_inf_neg);
95ATF_TC_HEAD(sinh_inf_neg, tc)
96{
97	atf_tc_set_md_var(tc, "descr", "Test sinh(-Inf) == -Inf");
98}
99
100ATF_TC_BODY(sinh_inf_neg, tc)
101{
102	const double x = -1.0L / 0.0L;
103	double y = sinh(x);
104
105	ATF_CHECK(isinf(y) != 0);
106	ATF_CHECK(signbit(y) != 0);
107}
108
109ATF_TC(sinh_inf_pos);
110ATF_TC_HEAD(sinh_inf_pos, tc)
111{
112	atf_tc_set_md_var(tc, "descr", "Test sinh(+Inf) == +Inf");
113}
114
115ATF_TC_BODY(sinh_inf_pos, tc)
116{
117	const double x = 1.0L / 0.0L;
118	double y = sinh(x);
119
120	ATF_CHECK(isinf(y) != 0);
121	ATF_CHECK(signbit(y) == 0);
122}
123
124ATF_TC(sinh_zero_neg);
125ATF_TC_HEAD(sinh_zero_neg, tc)
126{
127	atf_tc_set_md_var(tc, "descr", "Test sinh(-0.0) == -0.0");
128}
129
130ATF_TC_BODY(sinh_zero_neg, tc)
131{
132	const double x = -0.0L;
133	double y = sinh(x);
134
135	if (fabs(y) > 0.0 || signbit(y) == 0)
136		atf_tc_fail_nonfatal("sinh(-0.0) != -0.0");
137}
138
139ATF_TC(sinh_zero_pos);
140ATF_TC_HEAD(sinh_zero_pos, tc)
141{
142	atf_tc_set_md_var(tc, "descr", "Test sinh(+0.0) == +0.0");
143}
144
145ATF_TC_BODY(sinh_zero_pos, tc)
146{
147	const double x = 0.0L;
148	double y = sinh(x);
149
150	if (fabs(y) > 0.0 || signbit(y) != 0)
151		atf_tc_fail_nonfatal("sinh(+0.0) != +0.0");
152}
153
154/*
155 * sinhf(3)
156 */
157ATF_TC(sinhf_inrange);
158ATF_TC_HEAD(sinhf_inrange, tc)
159{
160	atf_tc_set_md_var(tc, "descr", "sinhf(x) for some values");
161}
162
163ATF_TC_BODY(sinhf_inrange, tc)
164{
165	const float eps = FLT_EPSILON;
166	size_t i;
167
168	for (i = 0; i < __arraycount(values); i++) {
169		float x = values[i].x;
170		float sinh_x = values[i].y;
171
172		if (!(fabsf((sinhf(x) - sinh_x)/sinh_x) <= eps)) {
173			atf_tc_fail_nonfatal("sinhf(%.8g) = %.8g != %.8g\n",
174			    (double)x, (double)sinhf(x), (double)sinh_x);
175		}
176	}
177}
178
179ATF_TC(sinhf_nan);
180ATF_TC_HEAD(sinhf_nan, tc)
181{
182	atf_tc_set_md_var(tc, "descr", "Test sinhf(NaN) == NaN");
183}
184
185ATF_TC_BODY(sinhf_nan, tc)
186{
187	const float x = 0.0L / 0.0L;
188
189	ATF_CHECK(isnan(x) != 0);
190	ATF_CHECK(isnan(sinhf(x)) != 0);
191}
192
193ATF_TC(sinhf_inf_neg);
194ATF_TC_HEAD(sinhf_inf_neg, tc)
195{
196	atf_tc_set_md_var(tc, "descr", "Test sinhf(-Inf) == -Inf");
197}
198
199ATF_TC_BODY(sinhf_inf_neg, tc)
200{
201	const float x = -1.0L / 0.0L;
202	float y = sinhf(x);
203
204	ATF_CHECK(isinf(y) != 0);
205	ATF_CHECK(signbit(y) != 0);
206}
207
208ATF_TC(sinhf_inf_pos);
209ATF_TC_HEAD(sinhf_inf_pos, tc)
210{
211	atf_tc_set_md_var(tc, "descr", "Test sinhf(+Inf) == +Inf");
212}
213
214ATF_TC_BODY(sinhf_inf_pos, tc)
215{
216	const float x = 1.0L / 0.0L;
217	float y = sinhf(x);
218
219	ATF_CHECK(isinf(y) != 0);
220	ATF_CHECK(signbit(y) == 0);
221}
222
223ATF_TC(sinhf_zero_neg);
224ATF_TC_HEAD(sinhf_zero_neg, tc)
225{
226	atf_tc_set_md_var(tc, "descr", "Test sinhf(-0.0) == -0.0");
227}
228
229ATF_TC_BODY(sinhf_zero_neg, tc)
230{
231	const float x = -0.0L;
232	float y = sinhf(x);
233
234	if (fabsf(y) > 0.0 || signbit(y) == 0)
235		atf_tc_fail_nonfatal("sinhf(-0.0) != -0.0");
236}
237
238ATF_TC(sinhf_zero_pos);
239ATF_TC_HEAD(sinhf_zero_pos, tc)
240{
241	atf_tc_set_md_var(tc, "descr", "Test sinhf(+0.0) == +0.0");
242}
243
244ATF_TC_BODY(sinhf_zero_pos, tc)
245{
246	const float x = 0.0L;
247	float y = sinhf(x);
248
249	if (fabsf(y) > 0.0 || signbit(y) != 0)
250		atf_tc_fail_nonfatal("sinhf(+0.0) != +0.0");
251}
252
253ATF_TP_ADD_TCS(tp)
254{
255
256	ATF_TP_ADD_TC(tp, sinh_inrange);
257	ATF_TP_ADD_TC(tp, sinh_nan);
258	ATF_TP_ADD_TC(tp, sinh_inf_neg);
259	ATF_TP_ADD_TC(tp, sinh_inf_pos);
260	ATF_TP_ADD_TC(tp, sinh_zero_neg);
261	ATF_TP_ADD_TC(tp, sinh_zero_pos);
262
263	ATF_TP_ADD_TC(tp, sinhf_inrange);
264	ATF_TP_ADD_TC(tp, sinhf_nan);
265	ATF_TP_ADD_TC(tp, sinhf_inf_neg);
266	ATF_TP_ADD_TC(tp, sinhf_inf_pos);
267	ATF_TP_ADD_TC(tp, sinhf_zero_neg);
268	ATF_TP_ADD_TC(tp, sinhf_zero_pos);
269
270	return atf_no_error();
271}
272