1 /* $NetBSD: t_cbrt.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 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: t_cbrt.c,v 1.3 2014/03/03 10:39:08 martin Exp $"); 33 34 #include <atf-c.h> 35 #include <math.h> 36 #include <stdio.h> 37 38 /* 39 * cbrt(3) 40 */ 41 ATF_TC(cbrt_nan); 42 ATF_TC_HEAD(cbrt_nan, tc) 43 { 44 atf_tc_set_md_var(tc, "descr", "Test cbrt(NaN) == NaN"); 45 } 46 47 ATF_TC_BODY(cbrt_nan, tc) 48 { 49 const double x = 0.0L / 0.0L; 50 51 ATF_CHECK(isnan(x) != 0); 52 ATF_CHECK(isnan(cbrt(x)) != 0); 53 } 54 55 ATF_TC(cbrt_pow); 56 ATF_TC_HEAD(cbrt_pow, tc) 57 { 58 atf_tc_set_md_var(tc, "descr", "Test cbrt(3) vs. pow(3)"); 59 } 60 61 ATF_TC_BODY(cbrt_pow, tc) 62 { 63 const double x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 }; 64 const double eps = 1.0e-14; 65 double y, z; 66 size_t i; 67 68 for (i = 0; i < __arraycount(x); i++) { 69 70 y = cbrt(x[i]); 71 z = pow(x[i], 1.0 / 3.0); 72 73 if (fabs(y - z) > eps) 74 atf_tc_fail_nonfatal("cbrt(%0.03f) != " 75 "pow(%0.03f, 1/3)\n", x[i], x[i]); 76 } 77 } 78 79 ATF_TC(cbrt_inf_neg); 80 ATF_TC_HEAD(cbrt_inf_neg, tc) 81 { 82 atf_tc_set_md_var(tc, "descr", "Test cbrt(-Inf) == -Inf"); 83 } 84 85 ATF_TC_BODY(cbrt_inf_neg, tc) 86 { 87 const double x = -1.0L / 0.0L; 88 double y = cbrt(x); 89 90 ATF_CHECK(isinf(y) != 0); 91 ATF_CHECK(signbit(y) != 0); 92 } 93 94 ATF_TC(cbrt_inf_pos); 95 ATF_TC_HEAD(cbrt_inf_pos, tc) 96 { 97 atf_tc_set_md_var(tc, "descr", "Test cbrt(+Inf) == +Inf"); 98 } 99 100 ATF_TC_BODY(cbrt_inf_pos, tc) 101 { 102 const double x = 1.0L / 0.0L; 103 double y = cbrt(x); 104 105 ATF_CHECK(isinf(y) != 0); 106 ATF_CHECK(signbit(y) == 0); 107 } 108 109 ATF_TC(cbrt_zero_neg); 110 ATF_TC_HEAD(cbrt_zero_neg, tc) 111 { 112 atf_tc_set_md_var(tc, "descr", "Test cbrt(-0.0) == -0.0"); 113 } 114 115 ATF_TC_BODY(cbrt_zero_neg, tc) 116 { 117 const double x = -0.0L; 118 double y = cbrt(x); 119 120 if (fabs(y) > 0.0 || signbit(y) == 0) 121 atf_tc_fail_nonfatal("cbrt(-0.0) != -0.0"); 122 } 123 124 ATF_TC(cbrt_zero_pos); 125 ATF_TC_HEAD(cbrt_zero_pos, tc) 126 { 127 atf_tc_set_md_var(tc, "descr", "Test cbrt(+0.0) == +0.0"); 128 } 129 130 ATF_TC_BODY(cbrt_zero_pos, tc) 131 { 132 const double x = 0.0L; 133 double y = cbrt(x); 134 135 if (fabs(y) > 0.0 || signbit(y) != 0) 136 atf_tc_fail_nonfatal("cbrt(+0.0) != +0.0"); 137 } 138 139 /* 140 * cbrtf(3) 141 */ 142 ATF_TC(cbrtf_nan); 143 ATF_TC_HEAD(cbrtf_nan, tc) 144 { 145 atf_tc_set_md_var(tc, "descr", "Test cbrtf(NaN) == NaN"); 146 } 147 148 ATF_TC_BODY(cbrtf_nan, tc) 149 { 150 const float x = 0.0L / 0.0L; 151 152 ATF_CHECK(isnan(x) != 0); 153 ATF_CHECK(isnan(cbrtf(x)) != 0); 154 } 155 156 ATF_TC(cbrtf_powf); 157 ATF_TC_HEAD(cbrtf_powf, tc) 158 { 159 atf_tc_set_md_var(tc, "descr", "Test cbrtf(3) vs. powf(3)"); 160 } 161 162 ATF_TC_BODY(cbrtf_powf, tc) 163 { 164 const float x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 }; 165 const float eps = 1.0e-5; 166 float y, z; 167 size_t i; 168 169 for (i = 0; i < __arraycount(x); i++) { 170 171 y = cbrtf(x[i]); 172 z = powf(x[i], 1.0 / 3.0); 173 174 if (fabsf(y - z) > eps) 175 atf_tc_fail_nonfatal("cbrtf(%0.03f) != " 176 "powf(%0.03f, 1/3)\n", x[i], x[i]); 177 } 178 } 179 180 ATF_TC(cbrtf_inf_neg); 181 ATF_TC_HEAD(cbrtf_inf_neg, tc) 182 { 183 atf_tc_set_md_var(tc, "descr", "Test cbrtf(-Inf) == -Inf"); 184 } 185 186 ATF_TC_BODY(cbrtf_inf_neg, tc) 187 { 188 const float x = -1.0L / 0.0L; 189 float y = cbrtf(x); 190 191 ATF_CHECK(isinf(y) != 0); 192 ATF_CHECK(signbit(y) != 0); 193 } 194 195 ATF_TC(cbrtf_inf_pos); 196 ATF_TC_HEAD(cbrtf_inf_pos, tc) 197 { 198 atf_tc_set_md_var(tc, "descr", "Test cbrtf(+Inf) == +Inf"); 199 } 200 201 ATF_TC_BODY(cbrtf_inf_pos, tc) 202 { 203 const float x = 1.0L / 0.0L; 204 float y = cbrtf(x); 205 206 ATF_CHECK(isinf(y) != 0); 207 ATF_CHECK(signbit(y) == 0); 208 } 209 210 ATF_TC(cbrtf_zero_neg); 211 ATF_TC_HEAD(cbrtf_zero_neg, tc) 212 { 213 atf_tc_set_md_var(tc, "descr", "Test cbrtf(-0.0) == -0.0"); 214 } 215 216 ATF_TC_BODY(cbrtf_zero_neg, tc) 217 { 218 const float x = -0.0L; 219 float y = cbrtf(x); 220 221 if (fabsf(y) > 0.0 || signbit(y) == 0) 222 atf_tc_fail_nonfatal("cbrtf(-0.0) != -0.0"); 223 } 224 225 ATF_TC(cbrtf_zero_pos); 226 ATF_TC_HEAD(cbrtf_zero_pos, tc) 227 { 228 atf_tc_set_md_var(tc, "descr", "Test cbrtf(+0.0) == +0.0"); 229 } 230 231 ATF_TC_BODY(cbrtf_zero_pos, tc) 232 { 233 const float x = 0.0L; 234 float y = cbrtf(x); 235 236 if (fabsf(y) > 0.0 || signbit(y) != 0) 237 atf_tc_fail_nonfatal("cbrtf(+0.0) != +0.0"); 238 } 239 240 #if !defined(__FreeBSD__) || LDBL_PREC != 53 241 /* 242 * cbrtl(3) 243 */ 244 ATF_TC(cbrtl_nan); 245 ATF_TC_HEAD(cbrtl_nan, tc) 246 { 247 atf_tc_set_md_var(tc, "descr", "Test cbrtl(NaN) == NaN"); 248 } 249 250 ATF_TC_BODY(cbrtl_nan, tc) 251 { 252 const long double x = 0.0L / 0.0L; 253 254 ATF_CHECK(isnan(x) != 0); 255 ATF_CHECK(isnan(cbrtl(x)) != 0); 256 } 257 258 ATF_TC(cbrtl_powl); 259 ATF_TC_HEAD(cbrtl_powl, tc) 260 { 261 atf_tc_set_md_var(tc, "descr", "Test cbrtl(3) vs. powl(3)"); 262 } 263 264 ATF_TC_BODY(cbrtl_powl, tc) 265 { 266 const long double x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 }; 267 const long double eps = 1.0e-15; 268 long double y, z; 269 size_t i; 270 271 #if defined(__amd64__) && defined(__clang__) && __clang_major__ >= 7 && \ 272 __FreeBSD_cc_version < 1300002 273 atf_tc_expect_fail("test fails with clang 7+ - bug 234040"); 274 #endif 275 276 for (i = 0; i < __arraycount(x); i++) { 277 278 y = cbrtl(x[i]); 279 #ifdef __FreeBSD__ 280 z = powl(x[i], (long double)1.0 / 3.0); 281 #else 282 z = powl(x[i], 1.0 / 3.0); 283 #endif 284 285 if (fabsl(y - z) > eps * fabsl(1 + x[i])) 286 atf_tc_fail_nonfatal("cbrtl(%0.03Lf) != " 287 "powl(%0.03Lf, 1/3)\n", x[i], x[i]); 288 } 289 } 290 291 ATF_TC(cbrtl_inf_neg); 292 ATF_TC_HEAD(cbrtl_inf_neg, tc) 293 { 294 atf_tc_set_md_var(tc, "descr", "Test cbrtl(-Inf) == -Inf"); 295 } 296 297 ATF_TC_BODY(cbrtl_inf_neg, tc) 298 { 299 const long double x = -1.0L / 0.0L; 300 long double y = cbrtl(x); 301 302 ATF_CHECK(isinf(y) != 0); 303 ATF_CHECK(signbit(y) != 0); 304 } 305 306 ATF_TC(cbrtl_inf_pos); 307 ATF_TC_HEAD(cbrtl_inf_pos, tc) 308 { 309 atf_tc_set_md_var(tc, "descr", "Test cbrtl(+Inf) == +Inf"); 310 } 311 312 ATF_TC_BODY(cbrtl_inf_pos, tc) 313 { 314 const long double x = 1.0L / 0.0L; 315 long double y = cbrtl(x); 316 317 ATF_CHECK(isinf(y) != 0); 318 ATF_CHECK(signbit(y) == 0); 319 } 320 321 ATF_TC(cbrtl_zero_neg); 322 ATF_TC_HEAD(cbrtl_zero_neg, tc) 323 { 324 atf_tc_set_md_var(tc, "descr", "Test cbrtl(-0.0) == -0.0"); 325 } 326 327 ATF_TC_BODY(cbrtl_zero_neg, tc) 328 { 329 const long double x = -0.0L; 330 long double y = cbrtl(x); 331 332 if (fabsl(y) > 0.0 || signbit(y) == 0) 333 atf_tc_fail_nonfatal("cbrtl(-0.0) != -0.0"); 334 } 335 336 ATF_TC(cbrtl_zero_pos); 337 ATF_TC_HEAD(cbrtl_zero_pos, tc) 338 { 339 atf_tc_set_md_var(tc, "descr", "Test cbrtl(+0.0) == +0.0"); 340 } 341 342 ATF_TC_BODY(cbrtl_zero_pos, tc) 343 { 344 const long double x = 0.0L; 345 long double y = cbrtl(x); 346 347 if (fabsl(y) > 0.0 || signbit(y) != 0) 348 atf_tc_fail_nonfatal("cbrtl(+0.0) != +0.0"); 349 } 350 #endif 351 352 ATF_TP_ADD_TCS(tp) 353 { 354 355 ATF_TP_ADD_TC(tp, cbrt_nan); 356 ATF_TP_ADD_TC(tp, cbrt_pow); 357 ATF_TP_ADD_TC(tp, cbrt_inf_neg); 358 ATF_TP_ADD_TC(tp, cbrt_inf_pos); 359 ATF_TP_ADD_TC(tp, cbrt_zero_neg); 360 ATF_TP_ADD_TC(tp, cbrt_zero_pos); 361 362 ATF_TP_ADD_TC(tp, cbrtf_nan); 363 ATF_TP_ADD_TC(tp, cbrtf_powf); 364 ATF_TP_ADD_TC(tp, cbrtf_inf_neg); 365 ATF_TP_ADD_TC(tp, cbrtf_inf_pos); 366 ATF_TP_ADD_TC(tp, cbrtf_zero_neg); 367 ATF_TP_ADD_TC(tp, cbrtf_zero_pos); 368 369 #if !defined(__FreeBSD__) || LDBL_PREC != 53 370 ATF_TP_ADD_TC(tp, cbrtl_nan); 371 ATF_TP_ADD_TC(tp, cbrtl_powl); 372 ATF_TP_ADD_TC(tp, cbrtl_inf_neg); 373 ATF_TP_ADD_TC(tp, cbrtl_inf_pos); 374 ATF_TP_ADD_TC(tp, cbrtl_zero_neg); 375 ATF_TP_ADD_TC(tp, cbrtl_zero_pos); 376 #endif 377 378 return atf_no_error(); 379 } 380