1 /* $NetBSD: t_cos.c,v 1.3 2011/09/14 13:29:58 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 32 #include <atf-c.h> 33 #include <math.h> 34 35 static const struct { 36 int angle; 37 double x; 38 double y; 39 } angles[] = { 40 { -180, -3.141592653589793, -1.0000000000000000 }, 41 { -135, -2.356194490192345, -0.7071067811865476 }, 42 { -90, -1.570796326794897, 0.0000000000000000 }, 43 { -45, -0.785398163397448, 0.7071067811865476 }, 44 { 0, 0.000000000000000, 1.0000000000000000 }, 45 { 30, 0.523598775598299, 0.8660254037844386 }, 46 { 45, 0.785398163397448, 0.7071067811865476 }, 47 { 60, 1.047197551196598, 0.5000000000000000 }, 48 { 90, 1.570796326794897, 0.0000000000000000 }, 49 { 120, 2.094395102393195, -0.5000000000000000 }, 50 { 135, 2.356194490192345, -0.7071067811865476 }, 51 { 150, 2.617993877991494, -0.8660254037844386 }, 52 { 180, 3.141592653589793, -1.0000000000000000 }, 53 { 270, 4.712388980384690, 0.0000000000000000 }, 54 { 360, 6.283185307179586, 1.0000000000000000 } 55 }; 56 57 /* 58 * cos(3) 59 */ 60 ATF_TC(cos_angles); 61 ATF_TC_HEAD(cos_angles, tc) 62 { 63 atf_tc_set_md_var(tc, "descr", "Test some selected angles"); 64 } 65 66 ATF_TC_BODY(cos_angles, tc) 67 { 68 const double eps = 1.0e-15; 69 size_t i; 70 71 for (i = 0; i < __arraycount(angles); i++) { 72 73 if (fabs(cos(angles[i].x) - angles[i].y) > eps) 74 atf_tc_fail_nonfatal("cos(%d deg) != %0.01f", 75 angles[i].angle, angles[i].y); 76 } 77 } 78 79 ATF_TC(cos_nan); 80 ATF_TC_HEAD(cos_nan, tc) 81 { 82 atf_tc_set_md_var(tc, "descr", "Test cos(NaN) == NaN"); 83 } 84 85 ATF_TC_BODY(cos_nan, tc) 86 { 87 #ifndef __vax__ 88 const double x = 0.0L / 0.0L; 89 90 ATF_CHECK(isnan(x) != 0); 91 ATF_CHECK(isnan(cos(x)) != 0); 92 #endif 93 } 94 95 ATF_TC(cos_inf_neg); 96 ATF_TC_HEAD(cos_inf_neg, tc) 97 { 98 atf_tc_set_md_var(tc, "descr", "Test cos(-Inf) == NaN"); 99 } 100 101 ATF_TC_BODY(cos_inf_neg, tc) 102 { 103 #ifndef __vax__ 104 const double x = -1.0L / 0.0L; 105 106 ATF_CHECK(isnan(cos(x)) != 0); 107 #endif 108 } 109 110 ATF_TC(cos_inf_pos); 111 ATF_TC_HEAD(cos_inf_pos, tc) 112 { 113 atf_tc_set_md_var(tc, "descr", "Test cos(+Inf) == NaN"); 114 } 115 116 ATF_TC_BODY(cos_inf_pos, tc) 117 { 118 #ifndef __vax__ 119 const double x = 1.0L / 0.0L; 120 121 ATF_CHECK(isnan(cos(x)) != 0); 122 #endif 123 } 124 125 126 ATF_TC(cos_zero_neg); 127 ATF_TC_HEAD(cos_zero_neg, tc) 128 { 129 atf_tc_set_md_var(tc, "descr", "Test cos(-0.0) == 1.0"); 130 } 131 132 ATF_TC_BODY(cos_zero_neg, tc) 133 { 134 #ifndef __vax__ 135 const double x = -0.0L; 136 137 ATF_CHECK(cos(x) == 1.0); 138 #endif 139 } 140 141 ATF_TC(cos_zero_pos); 142 ATF_TC_HEAD(cos_zero_pos, tc) 143 { 144 atf_tc_set_md_var(tc, "descr", "Test cos(+0.0) == 1.0"); 145 } 146 147 ATF_TC_BODY(cos_zero_pos, tc) 148 { 149 #ifndef __vax__ 150 const double x = 0.0L; 151 152 ATF_CHECK(cos(x) == 1.0); 153 #endif 154 } 155 156 /* 157 * cosf(3) 158 */ 159 ATF_TC(cosf_angles); 160 ATF_TC_HEAD(cosf_angles, tc) 161 { 162 atf_tc_set_md_var(tc, "descr", "Test some selected angles"); 163 } 164 165 ATF_TC_BODY(cosf_angles, tc) 166 { 167 const float eps = 1.0e-7; 168 float x, y; 169 size_t i; 170 171 for (i = 0; i < __arraycount(angles); i++) { 172 173 x = angles[i].x; 174 y = angles[i].y; 175 176 if (fabsf(cosf(x) - y) > eps) 177 atf_tc_fail_nonfatal("cosf(%d deg) != %0.01f", 178 angles[i].angle, angles[i].y); 179 } 180 } 181 182 ATF_TC(cosf_nan); 183 ATF_TC_HEAD(cosf_nan, tc) 184 { 185 atf_tc_set_md_var(tc, "descr", "Test cosf(NaN) == NaN"); 186 } 187 188 ATF_TC_BODY(cosf_nan, tc) 189 { 190 #ifndef __vax__ 191 const float x = 0.0L / 0.0L; 192 193 ATF_CHECK(isnan(x) != 0); 194 ATF_CHECK(isnan(cosf(x)) != 0); 195 #endif 196 } 197 198 ATF_TC(cosf_inf_neg); 199 ATF_TC_HEAD(cosf_inf_neg, tc) 200 { 201 atf_tc_set_md_var(tc, "descr", "Test cosf(-Inf) == NaN"); 202 } 203 204 ATF_TC_BODY(cosf_inf_neg, tc) 205 { 206 #ifndef __vax__ 207 const float x = -1.0L / 0.0L; 208 209 if (isnan(cosf(x)) == 0) { 210 atf_tc_expect_fail("PR lib/45362"); 211 atf_tc_fail("cosf(-Inf) != NaN"); 212 } 213 #endif 214 } 215 216 ATF_TC(cosf_inf_pos); 217 ATF_TC_HEAD(cosf_inf_pos, tc) 218 { 219 atf_tc_set_md_var(tc, "descr", "Test cosf(+Inf) == NaN"); 220 } 221 222 ATF_TC_BODY(cosf_inf_pos, tc) 223 { 224 #ifndef __vax__ 225 const float x = 1.0L / 0.0L; 226 227 if (isnan(cosf(x)) == 0) { 228 atf_tc_expect_fail("PR lib/45362"); 229 atf_tc_fail("cosf(+Inf) != NaN"); 230 } 231 #endif 232 } 233 234 235 ATF_TC(cosf_zero_neg); 236 ATF_TC_HEAD(cosf_zero_neg, tc) 237 { 238 atf_tc_set_md_var(tc, "descr", "Test cosf(-0.0) == 1.0"); 239 } 240 241 ATF_TC_BODY(cosf_zero_neg, tc) 242 { 243 #ifndef __vax__ 244 const float x = -0.0L; 245 246 ATF_CHECK(cosf(x) == 1.0); 247 #endif 248 } 249 250 ATF_TC(cosf_zero_pos); 251 ATF_TC_HEAD(cosf_zero_pos, tc) 252 { 253 atf_tc_set_md_var(tc, "descr", "Test cosf(+0.0) == 1.0"); 254 } 255 256 ATF_TC_BODY(cosf_zero_pos, tc) 257 { 258 #ifndef __vax__ 259 const float x = 0.0L; 260 261 ATF_CHECK(cosf(x) == 1.0); 262 #endif 263 } 264 265 ATF_TP_ADD_TCS(tp) 266 { 267 268 ATF_TP_ADD_TC(tp, cos_angles); 269 ATF_TP_ADD_TC(tp, cos_nan); 270 ATF_TP_ADD_TC(tp, cos_inf_neg); 271 ATF_TP_ADD_TC(tp, cos_inf_pos); 272 ATF_TP_ADD_TC(tp, cos_zero_neg); 273 ATF_TP_ADD_TC(tp, cos_zero_pos); 274 275 ATF_TP_ADD_TC(tp, cosf_angles); 276 ATF_TP_ADD_TC(tp, cosf_nan); 277 ATF_TP_ADD_TC(tp, cosf_inf_neg); 278 ATF_TP_ADD_TC(tp, cosf_inf_pos); 279 ATF_TP_ADD_TC(tp, cosf_zero_neg); 280 ATF_TP_ADD_TC(tp, cosf_zero_pos); 281 282 return atf_no_error(); 283 } 284