t_cbrt.c revision 1.1
1 /* $NetBSD: t_cbrt.c,v 1.1 2011/10/16 08:25:40 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_cbrt.c,v 1.1 2011/10/16 08:25:40 jruoho 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 #ifndef __vax__ 50 const double x = 0.0L / 0.0L; 51 52 ATF_CHECK(isnan(x) != 0); 53 ATF_CHECK(isnan(cbrt(x)) != 0); 54 #endif 55 } 56 57 ATF_TC(cbrt_pow); 58 ATF_TC_HEAD(cbrt_pow, tc) 59 { 60 atf_tc_set_md_var(tc, "descr", "Test cbrt(3) vs. pow(3)"); 61 } 62 63 ATF_TC_BODY(cbrt_pow, tc) 64 { 65 #ifndef __vax__ 66 const double x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 }; 67 const double eps = 1.0e-14; 68 double y, z; 69 size_t i; 70 71 for (i = 0; i < __arraycount(x); i++) { 72 73 y = cbrt(x[i]); 74 z = pow(x[i], 1.0 / 3.0); 75 76 if (fabs(y - z) > eps) 77 atf_tc_fail_nonfatal("cbrt(%0.03f) != " 78 "pow(%0.03f, 1/3)\n", x[i], x[i]); 79 } 80 #endif 81 } 82 83 ATF_TC(cbrt_inf_neg); 84 ATF_TC_HEAD(cbrt_inf_neg, tc) 85 { 86 atf_tc_set_md_var(tc, "descr", "Test cbrt(-Inf) == -Inf"); 87 } 88 89 ATF_TC_BODY(cbrt_inf_neg, tc) 90 { 91 #ifndef __vax__ 92 const double x = -1.0L / 0.0L; 93 double y = cbrt(x); 94 95 ATF_CHECK(isinf(y) != 0); 96 ATF_CHECK(signbit(y) != 0); 97 #endif 98 } 99 100 ATF_TC(cbrt_inf_pos); 101 ATF_TC_HEAD(cbrt_inf_pos, tc) 102 { 103 atf_tc_set_md_var(tc, "descr", "Test cbrt(+Inf) == +Inf"); 104 } 105 106 ATF_TC_BODY(cbrt_inf_pos, tc) 107 { 108 #ifndef __vax__ 109 const double x = 1.0L / 0.0L; 110 double y = cbrt(x); 111 112 ATF_CHECK(isinf(y) != 0); 113 ATF_CHECK(signbit(y) == 0); 114 #endif 115 } 116 117 ATF_TC(cbrt_zero_neg); 118 ATF_TC_HEAD(cbrt_zero_neg, tc) 119 { 120 atf_tc_set_md_var(tc, "descr", "Test cbrt(-0.0) == -0.0"); 121 } 122 123 ATF_TC_BODY(cbrt_zero_neg, tc) 124 { 125 #ifndef __vax__ 126 const double x = -0.0L; 127 double y = cbrt(x); 128 129 if (fabs(y) > 0.0 || signbit(y) == 0) 130 atf_tc_fail_nonfatal("cbrt(-0.0) != -0.0"); 131 #endif 132 } 133 134 ATF_TC(cbrt_zero_pos); 135 ATF_TC_HEAD(cbrt_zero_pos, tc) 136 { 137 atf_tc_set_md_var(tc, "descr", "Test cbrt(+0.0) == +0.0"); 138 } 139 140 ATF_TC_BODY(cbrt_zero_pos, tc) 141 { 142 #ifndef __vax__ 143 const double x = 0.0L; 144 double y = cbrt(x); 145 146 if (fabs(y) > 0.0 || signbit(y) != 0) 147 atf_tc_fail_nonfatal("cbrt(+0.0) != +0.0"); 148 #endif 149 } 150 151 /* 152 * cbrtf(3) 153 */ 154 ATF_TC(cbrtf_nan); 155 ATF_TC_HEAD(cbrtf_nan, tc) 156 { 157 atf_tc_set_md_var(tc, "descr", "Test cbrtf(NaN) == NaN"); 158 } 159 160 ATF_TC_BODY(cbrtf_nan, tc) 161 { 162 #ifndef __vax__ 163 const float x = 0.0L / 0.0L; 164 165 ATF_CHECK(isnan(x) != 0); 166 ATF_CHECK(isnan(cbrtf(x)) != 0); 167 #endif 168 } 169 170 ATF_TC(cbrtf_powf); 171 ATF_TC_HEAD(cbrtf_powf, tc) 172 { 173 atf_tc_set_md_var(tc, "descr", "Test cbrtf(3) vs. powf(3)"); 174 } 175 176 ATF_TC_BODY(cbrtf_powf, tc) 177 { 178 #ifndef __vax__ 179 const float x[] = { 0.0, 0.005, 1.0, 99.0, 123.123, 9999.0 }; 180 const float eps = 1.0e-5; 181 float y, z; 182 size_t i; 183 184 for (i = 0; i < __arraycount(x); i++) { 185 186 y = cbrtf(x[i]); 187 z = powf(x[i], 1.0 / 3.0); 188 189 if (fabsf(y - z) > eps) 190 atf_tc_fail_nonfatal("cbrtf(%0.03f) != " 191 "powf(%0.03f, 1/3)\n", x[i], x[i]); 192 } 193 #endif 194 } 195 196 ATF_TC(cbrtf_inf_neg); 197 ATF_TC_HEAD(cbrtf_inf_neg, tc) 198 { 199 atf_tc_set_md_var(tc, "descr", "Test cbrtf(-Inf) == -Inf"); 200 } 201 202 ATF_TC_BODY(cbrtf_inf_neg, tc) 203 { 204 #ifndef __vax__ 205 const float x = -1.0L / 0.0L; 206 float y = cbrtf(x); 207 208 ATF_CHECK(isinf(y) != 0); 209 ATF_CHECK(signbit(y) != 0); 210 #endif 211 } 212 213 ATF_TC(cbrtf_inf_pos); 214 ATF_TC_HEAD(cbrtf_inf_pos, tc) 215 { 216 atf_tc_set_md_var(tc, "descr", "Test cbrtf(+Inf) == +Inf"); 217 } 218 219 ATF_TC_BODY(cbrtf_inf_pos, tc) 220 { 221 #ifndef __vax__ 222 const float x = 1.0L / 0.0L; 223 float y = cbrtf(x); 224 225 ATF_CHECK(isinf(y) != 0); 226 ATF_CHECK(signbit(y) == 0); 227 #endif 228 } 229 230 ATF_TC(cbrtf_zero_neg); 231 ATF_TC_HEAD(cbrtf_zero_neg, tc) 232 { 233 atf_tc_set_md_var(tc, "descr", "Test cbrtf(-0.0) == -0.0"); 234 } 235 236 ATF_TC_BODY(cbrtf_zero_neg, tc) 237 { 238 #ifndef __vax__ 239 const float x = -0.0L; 240 float y = cbrtf(x); 241 242 if (fabsf(y) > 0.0 || signbit(y) == 0) 243 atf_tc_fail_nonfatal("cbrtf(-0.0) != -0.0"); 244 #endif 245 } 246 247 ATF_TC(cbrtf_zero_pos); 248 ATF_TC_HEAD(cbrtf_zero_pos, tc) 249 { 250 atf_tc_set_md_var(tc, "descr", "Test cbrtf(+0.0) == +0.0"); 251 } 252 253 ATF_TC_BODY(cbrtf_zero_pos, tc) 254 { 255 #ifndef __vax__ 256 const float x = 0.0L; 257 float y = cbrtf(x); 258 259 if (fabsf(y) > 0.0 || signbit(y) != 0) 260 atf_tc_fail_nonfatal("cbrtf(+0.0) != +0.0"); 261 #endif 262 } 263 264 ATF_TP_ADD_TCS(tp) 265 { 266 267 ATF_TP_ADD_TC(tp, cbrt_nan); 268 ATF_TP_ADD_TC(tp, cbrt_pow); 269 ATF_TP_ADD_TC(tp, cbrt_inf_neg); 270 ATF_TP_ADD_TC(tp, cbrt_inf_pos); 271 ATF_TP_ADD_TC(tp, cbrt_zero_neg); 272 ATF_TP_ADD_TC(tp, cbrt_zero_pos); 273 274 ATF_TP_ADD_TC(tp, cbrtf_nan); 275 ATF_TP_ADD_TC(tp, cbrtf_powf); 276 ATF_TP_ADD_TC(tp, cbrtf_inf_neg); 277 ATF_TP_ADD_TC(tp, cbrtf_inf_pos); 278 ATF_TP_ADD_TC(tp, cbrtf_zero_neg); 279 ATF_TP_ADD_TC(tp, cbrtf_zero_pos); 280 281 return atf_no_error(); 282 } 283
Indexes created Tue Sep 30 11:09:46 GMT 2025