1 /* $NetBSD: t_cosh.c,v 1.4 2011/10/18 14:16:42 jruoho 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_cosh.c,v 1.4 2011/10/18 14:16:42 jruoho Exp $"); 33 34 #include <atf-c.h> 35 #include <math.h> 36 #include <stdio.h> 37 38 /* 39 * cosh(3) 40 */ 41 ATF_TC(cosh_def); 42 ATF_TC_HEAD(cosh_def, tc) 43 { 44 atf_tc_set_md_var(tc, "descr", "Test the definition of cosh(3)"); 45 } 46 47 ATF_TC_BODY(cosh_def, tc) 48 { 49 #ifndef __vax__ 50 const double x[] = { 0.005, 0.05, 0.0, 1.0, 10.0, 20.0 }; 51 const double eps = 1.0e-8; 52 double y, z; 53 size_t i; 54 55 for (i = 0; i < __arraycount(x); i++) { 56 57 y = cosh(x[i]); 58 z = (exp(x[i]) + exp(-x[i])) / 2; 59 60 (void)fprintf(stderr, 61 "cosh(%0.03f) = %f\n(exp(%0.03f) + " 62 "exp(-%0.03f)) / 2 = %f\n", x[i], y, x[i], x[i], z); 63 64 if (fabs(y - z) > eps) 65 atf_tc_fail_nonfatal("cosh(%0.03f) != %0.03f\n", 66 x[i], z); 67 } 68 #endif 69 } 70 71 ATF_TC(cosh_nan); 72 ATF_TC_HEAD(cosh_nan, tc) 73 { 74 atf_tc_set_md_var(tc, "descr", "Test cosh(NaN) == NaN"); 75 } 76 77 ATF_TC_BODY(cosh_nan, tc) 78 { 79 #ifndef __vax__ 80 const double x = 0.0L / 0.0L; 81 82 ATF_CHECK(isnan(x) != 0); 83 ATF_CHECK(isnan(cosh(x)) != 0); 84 #endif 85 } 86 87 ATF_TC(cosh_inf_neg); 88 ATF_TC_HEAD(cosh_inf_neg, tc) 89 { 90 atf_tc_set_md_var(tc, "descr", "Test cosh(-Inf) == +Inf"); 91 } 92 93 ATF_TC_BODY(cosh_inf_neg, tc) 94 { 95 #ifndef __vax__ 96 const double x = -1.0L / 0.0L; 97 double y = cosh(x); 98 99 ATF_CHECK(isinf(y) != 0); 100 ATF_CHECK(signbit(y) == 0); 101 #endif 102 } 103 104 ATF_TC(cosh_inf_pos); 105 ATF_TC_HEAD(cosh_inf_pos, tc) 106 { 107 atf_tc_set_md_var(tc, "descr", "Test cosh(+Inf) == +Inf"); 108 } 109 110 ATF_TC_BODY(cosh_inf_pos, tc) 111 { 112 #ifndef __vax__ 113 const double x = 1.0L / 0.0L; 114 double y = cosh(x); 115 116 ATF_CHECK(isinf(y) != 0); 117 ATF_CHECK(signbit(y) == 0); 118 #endif 119 } 120 121 ATF_TC(cosh_zero_neg); 122 ATF_TC_HEAD(cosh_zero_neg, tc) 123 { 124 atf_tc_set_md_var(tc, "descr", "Test cosh(-0.0) == 1.0"); 125 } 126 127 ATF_TC_BODY(cosh_zero_neg, tc) 128 { 129 #ifndef __vax__ 130 const double x = -0.0L; 131 132 if (cosh(x) != 1.0) 133 atf_tc_fail_nonfatal("cosh(-0.0) != 1.0"); 134 #endif 135 } 136 137 ATF_TC(cosh_zero_pos); 138 ATF_TC_HEAD(cosh_zero_pos, tc) 139 { 140 atf_tc_set_md_var(tc, "descr", "Test cosh(+0.0) == 1.0"); 141 } 142 143 ATF_TC_BODY(cosh_zero_pos, tc) 144 { 145 #ifndef __vax__ 146 const double x = 0.0L; 147 148 if (cosh(x) != 1.0) 149 atf_tc_fail_nonfatal("cosh(+0.0) != 1.0"); 150 #endif 151 } 152 153 /* 154 * coshf(3) 155 */ 156 ATF_TC(coshf_def); 157 ATF_TC_HEAD(coshf_def, tc) 158 { 159 atf_tc_set_md_var(tc, "descr", "Test the definition of coshf(3)"); 160 } 161 162 ATF_TC_BODY(coshf_def, tc) 163 { 164 #ifndef __vax__ 165 const double x[] = { 0.005, 0.05, 0.0, 1.0, 10.0, 20.0 }; 166 const float eps = 1.0e-3; 167 float y, z; 168 size_t i; 169 170 for (i = 0; i < __arraycount(x); i++) { 171 172 y = coshf(x[i]); 173 z = (expf(x[i]) + expf(-x[i])) / 2; 174 175 (void)fprintf(stderr, 176 "coshf(%0.03f) = %f\n(expf(%0.03f) + " 177 "expf(-%0.03f)) / 2 = %f\n", x[i], y, x[i], x[i], z); 178 179 if (fabsf(y - z) > eps) 180 atf_tc_fail_nonfatal("coshf(%0.03f) != %0.03f\n", 181 x[i], z); 182 } 183 #endif 184 } 185 186 ATF_TC(coshf_nan); 187 ATF_TC_HEAD(coshf_nan, tc) 188 { 189 atf_tc_set_md_var(tc, "descr", "Test coshf(NaN) == NaN"); 190 } 191 192 ATF_TC_BODY(coshf_nan, tc) 193 { 194 #ifndef __vax__ 195 const float x = 0.0L / 0.0L; 196 197 ATF_CHECK(isnan(x) != 0); 198 ATF_CHECK(isnan(coshf(x)) != 0); 199 #endif 200 } 201 202 ATF_TC(coshf_inf_neg); 203 ATF_TC_HEAD(coshf_inf_neg, tc) 204 { 205 atf_tc_set_md_var(tc, "descr", "Test coshf(-Inf) == +Inf"); 206 } 207 208 ATF_TC_BODY(coshf_inf_neg, tc) 209 { 210 #ifndef __vax__ 211 const float x = -1.0L / 0.0L; 212 float y = coshf(x); 213 214 ATF_CHECK(isinf(y) != 0); 215 ATF_CHECK(signbit(y) == 0); 216 #endif 217 } 218 219 ATF_TC(coshf_inf_pos); 220 ATF_TC_HEAD(coshf_inf_pos, tc) 221 { 222 atf_tc_set_md_var(tc, "descr", "Test coshf(+Inf) == +Inf"); 223 } 224 225 ATF_TC_BODY(coshf_inf_pos, tc) 226 { 227 #ifndef __vax__ 228 const float x = 1.0L / 0.0L; 229 float y = coshf(x); 230 231 ATF_CHECK(isinf(y) != 0); 232 ATF_CHECK(signbit(y) == 0); 233 #endif 234 } 235 236 ATF_TC(coshf_zero_neg); 237 ATF_TC_HEAD(coshf_zero_neg, tc) 238 { 239 atf_tc_set_md_var(tc, "descr", "Test coshf(-0.0) == 1.0"); 240 } 241 242 ATF_TC_BODY(coshf_zero_neg, tc) 243 { 244 #ifndef __vax__ 245 const float x = -0.0L; 246 247 if (coshf(x) != 1.0) 248 atf_tc_fail_nonfatal("coshf(-0.0) != 1.0"); 249 #endif 250 } 251 252 ATF_TC(coshf_zero_pos); 253 ATF_TC_HEAD(coshf_zero_pos, tc) 254 { 255 atf_tc_set_md_var(tc, "descr", "Test coshf(+0.0) == 1.0"); 256 } 257 258 ATF_TC_BODY(coshf_zero_pos, tc) 259 { 260 #ifndef __vax__ 261 const float x = 0.0L; 262 263 if (coshf(x) != 1.0) 264 atf_tc_fail_nonfatal("coshf(+0.0) != 1.0"); 265 #endif 266 } 267 268 ATF_TP_ADD_TCS(tp) 269 { 270 271 ATF_TP_ADD_TC(tp, cosh_def); 272 ATF_TP_ADD_TC(tp, cosh_nan); 273 ATF_TP_ADD_TC(tp, cosh_inf_neg); 274 ATF_TP_ADD_TC(tp, cosh_inf_pos); 275 ATF_TP_ADD_TC(tp, cosh_zero_neg); 276 ATF_TP_ADD_TC(tp, cosh_zero_pos); 277 278 ATF_TP_ADD_TC(tp, coshf_def); 279 ATF_TP_ADD_TC(tp, coshf_nan); 280 ATF_TP_ADD_TC(tp, coshf_inf_neg); 281 ATF_TP_ADD_TC(tp, coshf_inf_pos); 282 ATF_TP_ADD_TC(tp, coshf_zero_neg); 283 ATF_TP_ADD_TC(tp, coshf_zero_pos); 284 285 return atf_no_error(); 286 } 287