t_cbrt.c revision 272343
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 */ 41ATF_TC(cbrt_nan); 42ATF_TC_HEAD(cbrt_nan, tc) 43{ 44 atf_tc_set_md_var(tc, "descr", "Test cbrt(NaN) == NaN"); 45} 46 47ATF_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 55ATF_TC(cbrt_pow); 56ATF_TC_HEAD(cbrt_pow, tc) 57{ 58 atf_tc_set_md_var(tc, "descr", "Test cbrt(3) vs. pow(3)"); 59} 60 61ATF_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 79ATF_TC(cbrt_inf_neg); 80ATF_TC_HEAD(cbrt_inf_neg, tc) 81{ 82 atf_tc_set_md_var(tc, "descr", "Test cbrt(-Inf) == -Inf"); 83} 84 85ATF_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 94ATF_TC(cbrt_inf_pos); 95ATF_TC_HEAD(cbrt_inf_pos, tc) 96{ 97 atf_tc_set_md_var(tc, "descr", "Test cbrt(+Inf) == +Inf"); 98} 99 100ATF_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 109ATF_TC(cbrt_zero_neg); 110ATF_TC_HEAD(cbrt_zero_neg, tc) 111{ 112 atf_tc_set_md_var(tc, "descr", "Test cbrt(-0.0) == -0.0"); 113} 114 115ATF_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 124ATF_TC(cbrt_zero_pos); 125ATF_TC_HEAD(cbrt_zero_pos, tc) 126{ 127 atf_tc_set_md_var(tc, "descr", "Test cbrt(+0.0) == +0.0"); 128} 129 130ATF_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 */ 142ATF_TC(cbrtf_nan); 143ATF_TC_HEAD(cbrtf_nan, tc) 144{ 145 atf_tc_set_md_var(tc, "descr", "Test cbrtf(NaN) == NaN"); 146} 147 148ATF_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 156ATF_TC(cbrtf_powf); 157ATF_TC_HEAD(cbrtf_powf, tc) 158{ 159 atf_tc_set_md_var(tc, "descr", "Test cbrtf(3) vs. powf(3)"); 160} 161 162ATF_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 180ATF_TC(cbrtf_inf_neg); 181ATF_TC_HEAD(cbrtf_inf_neg, tc) 182{ 183 atf_tc_set_md_var(tc, "descr", "Test cbrtf(-Inf) == -Inf"); 184} 185 186ATF_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 195ATF_TC(cbrtf_inf_pos); 196ATF_TC_HEAD(cbrtf_inf_pos, tc) 197{ 198 atf_tc_set_md_var(tc, "descr", "Test cbrtf(+Inf) == +Inf"); 199} 200 201ATF_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 210ATF_TC(cbrtf_zero_neg); 211ATF_TC_HEAD(cbrtf_zero_neg, tc) 212{ 213 atf_tc_set_md_var(tc, "descr", "Test cbrtf(-0.0) == -0.0"); 214} 215 216ATF_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 225ATF_TC(cbrtf_zero_pos); 226ATF_TC_HEAD(cbrtf_zero_pos, tc) 227{ 228 atf_tc_set_md_var(tc, "descr", "Test cbrtf(+0.0) == +0.0"); 229} 230 231ATF_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/* 241 * cbrtl(3) 242 */ 243ATF_TC(cbrtl_nan); 244ATF_TC_HEAD(cbrtl_nan, tc) 245{ 246 atf_tc_set_md_var(tc, "descr", "Test cbrtl(NaN) == NaN"); 247} 248 249ATF_TC_BODY(cbrtl_nan, tc) 250{ 251 const long double x = 0.0L / 0.0L; 252 253 ATF_CHECK(isnan(x) != 0); 254 ATF_CHECK(isnan(cbrtl(x)) != 0); 255} 256 257ATF_TC(cbrtl_powl); 258ATF_TC_HEAD(cbrtl_powl, tc) 259{ 260 atf_tc_set_md_var(tc, "descr", "Test cbrtl(3) vs. powl(3)"); 261} 262 263ATF_TC_BODY(cbrtl_powl, tc) 264{ 265 const long double x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 }; 266 const long double eps = 1.0e-15; 267 long double y, z; 268 size_t i; 269 270 for (i = 0; i < __arraycount(x); i++) { 271 272 y = cbrtl(x[i]); 273 z = powl(x[i], 1.0 / 3.0); 274 275 if (fabsl(y - z) > eps * fabsl(1 + x[i])) 276 atf_tc_fail_nonfatal("cbrtl(%0.03Lf) != " 277 "powl(%0.03Lf, 1/3)\n", x[i], x[i]); 278 } 279} 280 281ATF_TC(cbrtl_inf_neg); 282ATF_TC_HEAD(cbrtl_inf_neg, tc) 283{ 284 atf_tc_set_md_var(tc, "descr", "Test cbrtl(-Inf) == -Inf"); 285} 286 287ATF_TC_BODY(cbrtl_inf_neg, tc) 288{ 289 const long double x = -1.0L / 0.0L; 290 long double y = cbrtl(x); 291 292 ATF_CHECK(isinf(y) != 0); 293 ATF_CHECK(signbit(y) != 0); 294} 295 296ATF_TC(cbrtl_inf_pos); 297ATF_TC_HEAD(cbrtl_inf_pos, tc) 298{ 299 atf_tc_set_md_var(tc, "descr", "Test cbrtl(+Inf) == +Inf"); 300} 301 302ATF_TC_BODY(cbrtl_inf_pos, tc) 303{ 304 const long double x = 1.0L / 0.0L; 305 long double y = cbrtl(x); 306 307 ATF_CHECK(isinf(y) != 0); 308 ATF_CHECK(signbit(y) == 0); 309} 310 311ATF_TC(cbrtl_zero_neg); 312ATF_TC_HEAD(cbrtl_zero_neg, tc) 313{ 314 atf_tc_set_md_var(tc, "descr", "Test cbrtl(-0.0) == -0.0"); 315} 316 317ATF_TC_BODY(cbrtl_zero_neg, tc) 318{ 319 const long double x = -0.0L; 320 long double y = cbrtl(x); 321 322 if (fabsl(y) > 0.0 || signbit(y) == 0) 323 atf_tc_fail_nonfatal("cbrtl(-0.0) != -0.0"); 324} 325 326ATF_TC(cbrtl_zero_pos); 327ATF_TC_HEAD(cbrtl_zero_pos, tc) 328{ 329 atf_tc_set_md_var(tc, "descr", "Test cbrtl(+0.0) == +0.0"); 330} 331 332ATF_TC_BODY(cbrtl_zero_pos, tc) 333{ 334 const long double x = 0.0L; 335 long double y = cbrtl(x); 336 337 if (fabsl(y) > 0.0 || signbit(y) != 0) 338 atf_tc_fail_nonfatal("cbrtl(+0.0) != +0.0"); 339} 340 341ATF_TP_ADD_TCS(tp) 342{ 343 344 ATF_TP_ADD_TC(tp, cbrt_nan); 345 ATF_TP_ADD_TC(tp, cbrt_pow); 346 ATF_TP_ADD_TC(tp, cbrt_inf_neg); 347 ATF_TP_ADD_TC(tp, cbrt_inf_pos); 348 ATF_TP_ADD_TC(tp, cbrt_zero_neg); 349 ATF_TP_ADD_TC(tp, cbrt_zero_pos); 350 351 ATF_TP_ADD_TC(tp, cbrtf_nan); 352 ATF_TP_ADD_TC(tp, cbrtf_powf); 353 ATF_TP_ADD_TC(tp, cbrtf_inf_neg); 354 ATF_TP_ADD_TC(tp, cbrtf_inf_pos); 355 ATF_TP_ADD_TC(tp, cbrtf_zero_neg); 356 ATF_TP_ADD_TC(tp, cbrtf_zero_pos); 357 358 ATF_TP_ADD_TC(tp, cbrtl_nan); 359 ATF_TP_ADD_TC(tp, cbrtl_powl); 360 ATF_TP_ADD_TC(tp, cbrtl_inf_neg); 361 ATF_TP_ADD_TC(tp, cbrtl_inf_pos); 362 ATF_TP_ADD_TC(tp, cbrtl_zero_neg); 363 ATF_TP_ADD_TC(tp, cbrtl_zero_pos); 364 365 return atf_no_error(); 366} 367