1 /* $NetBSD: t_pow.c,v 1.5 2017/01/20 21:15:56 maya 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_pow.c,v 1.5 2017/01/20 21:15:56 maya Exp $"); 33 34 #include <atf-c.h> 35 #include <math.h> 36 37 /* 38 * pow(3) 39 */ 40 ATF_TC(pow_nan_x); 41 ATF_TC_HEAD(pow_nan_x, tc) 42 { 43 atf_tc_set_md_var(tc, "descr", "Test pow(NaN, y) == NaN"); 44 } 45 46 ATF_TC_BODY(pow_nan_x, tc) 47 { 48 const double x = 0.0L / 0.0L; 49 50 ATF_CHECK(isnan(pow(x, 2.0)) != 0); 51 } 52 53 ATF_TC(pow_nan_y); 54 ATF_TC_HEAD(pow_nan_y, tc) 55 { 56 atf_tc_set_md_var(tc, "descr", "Test pow(x, NaN) == NaN"); 57 } 58 59 ATF_TC_BODY(pow_nan_y, tc) 60 { 61 const double y = 0.0L / 0.0L; 62 63 ATF_CHECK(isnan(pow(2.0, y)) != 0); 64 } 65 66 ATF_TC(pow_inf_neg_x); 67 ATF_TC_HEAD(pow_inf_neg_x, tc) 68 { 69 atf_tc_set_md_var(tc, "descr", "Test pow(-Inf, y) == +-Inf || +-0.0"); 70 } 71 72 ATF_TC_BODY(pow_inf_neg_x, tc) 73 { 74 const double x = -1.0L / 0.0L; 75 double z; 76 77 /* 78 * If y is odd, y > 0, and x is -Inf, -Inf is returned. 79 * If y is even, y > 0, and x is -Inf, +Inf is returned. 80 */ 81 z = pow(x, 3.0); 82 83 if (isinf(z) == 0 || signbit(z) == 0) 84 atf_tc_fail_nonfatal("pow(-Inf, 3.0) != -Inf"); 85 86 z = pow(x, 4.0); 87 88 if (isinf(z) == 0 || signbit(z) != 0) 89 atf_tc_fail_nonfatal("pow(-Inf, 4.0) != +Inf"); 90 91 /* 92 * If y is odd, y < 0, and x is -Inf, -0.0 is returned. 93 * If y is even, y < 0, and x is -Inf, +0.0 is returned. 94 */ 95 z = pow(x, -3.0); 96 97 if (fabs(z) > 0.0 || signbit(z) == 0) 98 atf_tc_fail_nonfatal("pow(-Inf, -3.0) != -0.0"); 99 100 z = pow(x, -4.0); 101 102 if (fabs(z) > 0.0 || signbit(z) != 0) 103 atf_tc_fail_nonfatal("pow(-Inf -4.0) != +0.0"); 104 } 105 106 ATF_TC(pow_inf_neg_y); 107 ATF_TC_HEAD(pow_inf_neg_y, tc) 108 { 109 atf_tc_set_md_var(tc, "descr", "Test pow(x, -Inf) == +Inf || +0.0"); 110 } 111 112 ATF_TC_BODY(pow_inf_neg_y, tc) 113 { 114 const double y = -1.0L / 0.0L; 115 double z; 116 117 /* 118 * If |x| < 1 and y is -Inf, +Inf is returned. 119 * If |x| > 1 and y is -Inf, +0.0 is returned. 120 */ 121 z = pow(0.1, y); 122 123 if (isinf(z) == 0 || signbit(z) != 0) 124 atf_tc_fail_nonfatal("pow(0.1, -Inf) != +Inf"); 125 126 z = pow(1.1, y); 127 128 if (fabs(z) > 0.0 || signbit(z) != 0) 129 atf_tc_fail_nonfatal("pow(1.1, -Inf) != +0.0"); 130 } 131 132 ATF_TC(pow_inf_pos_x); 133 ATF_TC_HEAD(pow_inf_pos_x, tc) 134 { 135 atf_tc_set_md_var(tc, "descr", "Test pow(+Inf, y) == +Inf || +0.0"); 136 } 137 138 ATF_TC_BODY(pow_inf_pos_x, tc) 139 { 140 const double x = 1.0L / 0.0L; 141 double z; 142 143 /* 144 * For y < 0, if x is +Inf, +0.0 is returned. 145 * For y > 0, if x is +Inf, +Inf is returned. 146 */ 147 z = pow(x, -2.0); 148 149 if (fabs(z) > 0.0 || signbit(z) != 0) 150 atf_tc_fail_nonfatal("pow(+Inf, -2.0) != +0.0"); 151 152 z = pow(x, 2.0); 153 154 if (isinf(z) == 0 || signbit(z) != 0) 155 atf_tc_fail_nonfatal("pow(+Inf, 2.0) != +Inf"); 156 } 157 158 ATF_TC(pow_inf_pos_y); 159 ATF_TC_HEAD(pow_inf_pos_y, tc) 160 { 161 atf_tc_set_md_var(tc, "descr", "Test pow(x, +Inf) == +Inf || +0.0"); 162 } 163 164 ATF_TC_BODY(pow_inf_pos_y, tc) 165 { 166 const double y = 1.0L / 0.0L; 167 double z; 168 169 /* 170 * If |x| < 1 and y is +Inf, +0.0 is returned. 171 * If |x| > 1 and y is +Inf, +Inf is returned. 172 */ 173 z = pow(0.1, y); 174 175 if (fabs(z) > 0.0 || signbit(z) != 0) 176 atf_tc_fail_nonfatal("pow(0.1, +Inf) != +0.0"); 177 178 z = pow(1.1, y); 179 180 if (isinf(z) == 0 || signbit(z) != 0) 181 atf_tc_fail_nonfatal("pow(1.1, +Inf) != +Inf"); 182 } 183 184 ATF_TC(pow_one_neg_x); 185 ATF_TC_HEAD(pow_one_neg_x, tc) 186 { 187 atf_tc_set_md_var(tc, "descr", "Test pow(-1.0, +-Inf) == 1.0"); 188 } 189 190 ATF_TC_BODY(pow_one_neg_x, tc) 191 { 192 const double infp = 1.0L / 0.0L; 193 const double infn = -1.0L / 0.0L; 194 195 /* 196 * If x is -1.0, and y is +-Inf, 1.0 shall be returned. 197 */ 198 ATF_REQUIRE(isinf(infp) != 0); 199 ATF_REQUIRE(isinf(infn) != 0); 200 201 if (pow(-1.0, infp) != 1.0) { 202 atf_tc_expect_fail("PR lib/45372"); 203 atf_tc_fail_nonfatal("pow(-1.0, +Inf) != 1.0"); 204 } 205 206 if (pow(-1.0, infn) != 1.0) { 207 atf_tc_expect_fail("PR lib/45372"); 208 atf_tc_fail_nonfatal("pow(-1.0, -Inf) != 1.0"); 209 } 210 } 211 212 ATF_TC(pow_one_pos_x); 213 ATF_TC_HEAD(pow_one_pos_x, tc) 214 { 215 atf_tc_set_md_var(tc, "descr", "Test pow(1.0, y) == 1.0"); 216 } 217 218 ATF_TC_BODY(pow_one_pos_x, tc) 219 { 220 const double y[] = { 0.0, 0.1, 2.0, -3.0, 99.0, 99.99, 9999999.9 }; 221 const double z = 0.0L / 0.0L; 222 size_t i; 223 224 /* 225 * For any value of y (including NaN), 226 * if x is 1.0, 1.0 shall be returned. 227 */ 228 if (pow(1.0, z) != 1.0) 229 atf_tc_fail_nonfatal("pow(1.0, NaN) != 1.0"); 230 231 for (i = 0; i < __arraycount(y); i++) { 232 233 if (pow(1.0, y[i]) != 1.0) 234 atf_tc_fail_nonfatal("pow(1.0, %0.01f) != 1.0", y[i]); 235 } 236 } 237 238 ATF_TC(pow_zero_x); 239 ATF_TC_HEAD(pow_zero_x, tc) 240 { 241 atf_tc_set_md_var(tc, "descr", "Test pow(+-0.0, y) == +-0.0 || HUGE"); 242 } 243 244 ATF_TC_BODY(pow_zero_x, tc) 245 { 246 double z; 247 248 /* 249 * If x is +0.0 or -0.0, y > 0, and y 250 * is an odd integer, x is returned. 251 */ 252 z = pow(+0.0, 3.0); 253 254 if (fabs(z) > 0.0 || signbit(z) != 0) 255 atf_tc_fail_nonfatal("pow(+0.0, 3.0) != +0.0"); 256 257 z = pow(-0.0, 3.0); 258 259 if (fabs(z) > 0.0 || signbit(z) == 0) 260 atf_tc_fail_nonfatal("pow(-0.0, 3.0) != -0.0"); 261 262 /* 263 * If y > 0 and not an odd integer, 264 * if x is +0.0 or -0.0, +0.0 is returned. 265 */ 266 z = pow(+0.0, 4.0); 267 268 if (fabs(z) > 0.0 || signbit(z) != 0) 269 atf_tc_fail_nonfatal("pow(+0.0, 4.0) != +0.0"); 270 271 z = pow(-0.0, 4.0); 272 273 if (fabs(z) > 0.0 || signbit(z) != 0) 274 atf_tc_fail_nonfatal("pow(-0.0, 4.0) != +0.0"); 275 276 /* 277 * If y < 0 and x is +0.0 or -0.0, either +-HUGE_VAL, 278 * +-HUGE_VALF, or +-HUGE_VALL shall be returned. 279 */ 280 z = pow(+0.0, -4.0); 281 282 if (z != HUGE_VAL) { 283 atf_tc_fail_nonfatal("pow(+0.0, -4.0) != HUGE_VAL"); 284 } 285 286 z = pow(-0.0, -4.0); 287 288 if (z != HUGE_VAL) { 289 atf_tc_fail_nonfatal("pow(-0.0, -4.0) != HUGE_VAL"); 290 } 291 292 z = pow(+0.0, -5.0); 293 294 if (z != HUGE_VAL) { 295 atf_tc_fail_nonfatal("pow(+0.0, -5.0) != HUGE_VAL"); 296 } 297 298 z = pow(-0.0, -5.0); 299 300 if (z != -HUGE_VAL) 301 atf_tc_fail_nonfatal("pow(-0.0, -5.0) != -HUGE_VAL"); 302 } 303 304 ATF_TC(pow_zero_y); 305 ATF_TC_HEAD(pow_zero_y, tc) 306 { 307 atf_tc_set_md_var(tc, "descr", "Test pow(x, +-0.0) == 1.0"); 308 } 309 310 ATF_TC_BODY(pow_zero_y, tc) 311 { 312 const double x[] = { 0.1, -3.0, 77.0, 99.99, 101.0000001 }; 313 const double z = 0.0L / 0.0L; 314 size_t i; 315 316 /* 317 * For any value of x (including NaN), 318 * if y is +0.0 or -0.0, 1.0 is returned. 319 */ 320 if (pow(z, +0.0) != 1.0) 321 atf_tc_fail_nonfatal("pow(NaN, +0.0) != 1.0"); 322 323 if (pow(z, -0.0) != 1.0) 324 atf_tc_fail_nonfatal("pow(NaN, -0.0) != 1.0"); 325 326 for (i = 0; i < __arraycount(x); i++) { 327 328 if (pow(x[i], +0.0) != 1.0) 329 atf_tc_fail_nonfatal("pow(%0.01f, +0.0) != 1.0", x[i]); 330 331 if (pow(x[i], -0.0) != 1.0) 332 atf_tc_fail_nonfatal("pow(%0.01f, -0.0) != 1.0", x[i]); 333 } 334 } 335 336 /* 337 * powf(3) 338 */ 339 ATF_TC(powf_nan_x); 340 ATF_TC_HEAD(powf_nan_x, tc) 341 { 342 atf_tc_set_md_var(tc, "descr", "Test powf(NaN, y) == NaN"); 343 } 344 345 ATF_TC_BODY(powf_nan_x, tc) 346 { 347 const float x = 0.0L / 0.0L; 348 349 ATF_CHECK(isnanf(powf(x, 2.0)) != 0); 350 } 351 352 ATF_TC(powf_nan_y); 353 ATF_TC_HEAD(powf_nan_y, tc) 354 { 355 atf_tc_set_md_var(tc, "descr", "Test powf(x, NaN) == NaN"); 356 } 357 358 ATF_TC_BODY(powf_nan_y, tc) 359 { 360 const float y = 0.0L / 0.0L; 361 362 ATF_CHECK(isnanf(powf(2.0, y)) != 0); 363 } 364 365 ATF_TC(powf_inf_neg_x); 366 ATF_TC_HEAD(powf_inf_neg_x, tc) 367 { 368 atf_tc_set_md_var(tc, "descr", "Test powf(-Inf, y) == +-Inf || +-0.0"); 369 } 370 371 ATF_TC_BODY(powf_inf_neg_x, tc) 372 { 373 const float x = -1.0L / 0.0L; 374 float z; 375 376 /* 377 * If y is odd, y > 0, and x is -Inf, -Inf is returned. 378 * If y is even, y > 0, and x is -Inf, +Inf is returned. 379 */ 380 z = powf(x, 3.0); 381 382 if (isinf(z) == 0 || signbit(z) == 0) 383 atf_tc_fail_nonfatal("powf(-Inf, 3.0) != -Inf"); 384 385 z = powf(x, 4.0); 386 387 if (isinf(z) == 0 || signbit(z) != 0) 388 atf_tc_fail_nonfatal("powf(-Inf, 4.0) != +Inf"); 389 390 /* 391 * If y is odd, y < 0, and x is -Inf, -0.0 is returned. 392 * If y is even, y < 0, and x is -Inf, +0.0 is returned. 393 */ 394 z = powf(x, -3.0); 395 396 if (fabsf(z) > 0.0 || signbit(z) == 0) { 397 atf_tc_expect_fail("PR lib/45372"); 398 atf_tc_fail_nonfatal("powf(-Inf, -3.0) != -0.0"); 399 } 400 401 z = powf(x, -4.0); 402 403 if (fabsf(z) > 0.0 || signbit(z) != 0) 404 atf_tc_fail_nonfatal("powf(-Inf -4.0) != +0.0"); 405 } 406 407 ATF_TC(powf_inf_neg_y); 408 ATF_TC_HEAD(powf_inf_neg_y, tc) 409 { 410 atf_tc_set_md_var(tc, "descr", "Test powf(x, -Inf) == +Inf || +0.0"); 411 } 412 413 ATF_TC_BODY(powf_inf_neg_y, tc) 414 { 415 const float y = -1.0L / 0.0L; 416 float z; 417 418 /* 419 * If |x| < 1 and y is -Inf, +Inf is returned. 420 * If |x| > 1 and y is -Inf, +0.0 is returned. 421 */ 422 z = powf(0.1, y); 423 424 if (isinf(z) == 0 || signbit(z) != 0) 425 atf_tc_fail_nonfatal("powf(0.1, -Inf) != +Inf"); 426 427 z = powf(1.1, y); 428 429 if (fabsf(z) > 0.0 || signbit(z) != 0) 430 atf_tc_fail_nonfatal("powf(1.1, -Inf) != +0.0"); 431 } 432 433 ATF_TC(powf_inf_pos_x); 434 ATF_TC_HEAD(powf_inf_pos_x, tc) 435 { 436 atf_tc_set_md_var(tc, "descr", "Test powf(+Inf, y) == +Inf || +0.0"); 437 } 438 439 ATF_TC_BODY(powf_inf_pos_x, tc) 440 { 441 const float x = 1.0L / 0.0L; 442 float z; 443 444 /* 445 * For y < 0, if x is +Inf, +0.0 is returned. 446 * For y > 0, if x is +Inf, +Inf is returned. 447 */ 448 z = powf(x, -2.0); 449 450 if (fabsf(z) > 0.0 || signbit(z) != 0) 451 atf_tc_fail_nonfatal("powf(+Inf, -2.0) != +0.0"); 452 453 z = powf(x, 2.0); 454 455 if (isinf(z) == 0 || signbit(z) != 0) 456 atf_tc_fail_nonfatal("powf(+Inf, 2.0) != +Inf"); 457 } 458 459 ATF_TC(powf_inf_pos_y); 460 ATF_TC_HEAD(powf_inf_pos_y, tc) 461 { 462 atf_tc_set_md_var(tc, "descr", "Test powf(x, +Inf) == +Inf || +0.0"); 463 } 464 465 ATF_TC_BODY(powf_inf_pos_y, tc) 466 { 467 const float y = 1.0L / 0.0L; 468 float z; 469 470 /* 471 * If |x| < 1 and y is +Inf, +0.0 is returned. 472 * If |x| > 1 and y is +Inf, +Inf is returned. 473 */ 474 z = powf(0.1, y); 475 476 if (fabsf(z) > 0.0 || signbit(z) != 0) 477 atf_tc_fail_nonfatal("powf(0.1, +Inf) != +0.0"); 478 479 z = powf(1.1, y); 480 481 if (isinf(z) == 0 || signbit(z) != 0) 482 atf_tc_fail_nonfatal("powf(1.1, +Inf) != +Inf"); 483 } 484 485 ATF_TC(powf_one_neg_x); 486 ATF_TC_HEAD(powf_one_neg_x, tc) 487 { 488 atf_tc_set_md_var(tc, "descr", "Test powf(-1.0, +-Inf) == 1.0"); 489 } 490 491 ATF_TC_BODY(powf_one_neg_x, tc) 492 { 493 const float infp = 1.0L / 0.0L; 494 const float infn = -1.0L / 0.0L; 495 496 /* 497 * If x is -1.0, and y is +-Inf, 1.0 shall be returned. 498 */ 499 ATF_REQUIRE(isinf(infp) != 0); 500 ATF_REQUIRE(isinf(infn) != 0); 501 502 if (powf(-1.0, infp) != 1.0) { 503 atf_tc_expect_fail("PR lib/45372"); 504 atf_tc_fail_nonfatal("powf(-1.0, +Inf) != 1.0"); 505 } 506 507 if (powf(-1.0, infn) != 1.0) { 508 atf_tc_expect_fail("PR lib/45372"); 509 atf_tc_fail_nonfatal("powf(-1.0, -Inf) != 1.0"); 510 } 511 } 512 513 ATF_TC(powf_one_pos_x); 514 ATF_TC_HEAD(powf_one_pos_x, tc) 515 { 516 atf_tc_set_md_var(tc, "descr", "Test powf(1.0, y) == 1.0"); 517 } 518 519 ATF_TC_BODY(powf_one_pos_x, tc) 520 { 521 const float y[] = { 0.0, 0.1, 2.0, -3.0, 99.0, 99.99, 9999999.9 }; 522 const float z = 0.0L / 0.0L; 523 size_t i; 524 525 /* 526 * For any value of y (including NaN), 527 * if x is 1.0, 1.0 shall be returned. 528 */ 529 if (powf(1.0, z) != 1.0) 530 atf_tc_fail_nonfatal("powf(1.0, NaN) != 1.0"); 531 532 for (i = 0; i < __arraycount(y); i++) { 533 534 if (powf(1.0, y[i]) != 1.0) 535 atf_tc_fail_nonfatal("powf(1.0, %0.01f) != 1.0", y[i]); 536 } 537 } 538 539 ATF_TC(powf_zero_x); 540 ATF_TC_HEAD(powf_zero_x, tc) 541 { 542 atf_tc_set_md_var(tc, "descr", "Test powf(+-0.0, y) == +-0.0 || HUGE"); 543 } 544 545 ATF_TC_BODY(powf_zero_x, tc) 546 { 547 float z; 548 549 /* 550 * If x is +0.0 or -0.0, y > 0, and y 551 * is an odd integer, x is returned. 552 */ 553 z = powf(+0.0, 3.0); 554 555 if (fabsf(z) > 0.0 || signbit(z) != 0) 556 atf_tc_fail_nonfatal("powf(+0.0, 3.0) != +0.0"); 557 558 z = powf(-0.0, 3.0); 559 560 if (fabsf(z) > 0.0 || signbit(z) == 0) 561 atf_tc_fail_nonfatal("powf(-0.0, 3.0) != -0.0"); 562 563 /* 564 * If y > 0 and not an odd integer, 565 * if x is +0.0 or -0.0, +0.0 is returned. 566 */ 567 z = powf(+0.0, 4.0); 568 569 if (fabsf(z) > 0.0 || signbit(z) != 0) 570 atf_tc_fail_nonfatal("powf(+0.0, 4.0) != +0.0"); 571 572 z = powf(-0.0, 4.0); 573 574 if (fabsf(z) > 0.0 || signbit(z) != 0) 575 atf_tc_fail_nonfatal("powf(-0.0, 4.0) != +0.0"); 576 577 /* 578 * If y < 0 and x is +0.0 or -0.0, either +-HUGE_VAL, 579 * +-HUGE_VALF, or +-HUGE_VALL shall be returned. 580 */ 581 z = powf(+0.0, -4.0); 582 583 if (z != HUGE_VALF) { 584 atf_tc_expect_fail("PR port-amd64/45391"); 585 atf_tc_fail_nonfatal("powf(+0.0, -4.0) != HUGE_VALF"); 586 } 587 588 z = powf(-0.0, -4.0); 589 590 if (z != HUGE_VALF) { 591 atf_tc_expect_fail("PR port-amd64/45391"); 592 atf_tc_fail_nonfatal("powf(-0.0, -4.0) != HUGE_VALF"); 593 } 594 595 z = powf(+0.0, -5.0); 596 597 if (z != HUGE_VALF) { 598 atf_tc_expect_fail("PR port-amd64/45391"); 599 atf_tc_fail_nonfatal("powf(+0.0, -5.0) != HUGE_VALF"); 600 } 601 602 z = powf(-0.0, -5.0); 603 604 if (z != -HUGE_VALF) 605 atf_tc_fail_nonfatal("powf(-0.0, -5.0) != -HUGE_VALF"); 606 } 607 608 ATF_TC(powf_zero_y); 609 ATF_TC_HEAD(powf_zero_y, tc) 610 { 611 atf_tc_set_md_var(tc, "descr", "Test powf(x, +-0.0) == 1.0"); 612 } 613 614 ATF_TC_BODY(powf_zero_y, tc) 615 { 616 const float x[] = { 0.1, -3.0, 77.0, 99.99, 101.0000001 }; 617 const float z = 0.0L / 0.0L; 618 size_t i; 619 620 /* 621 * For any value of x (including NaN), 622 * if y is +0.0 or -0.0, 1.0 is returned. 623 */ 624 if (powf(z, +0.0) != 1.0) 625 atf_tc_fail_nonfatal("powf(NaN, +0.0) != 1.0"); 626 627 if (powf(z, -0.0) != 1.0) 628 atf_tc_fail_nonfatal("powf(NaN, -0.0) != 1.0"); 629 630 for (i = 0; i < __arraycount(x); i++) { 631 632 if (powf(x[i], +0.0) != 1.0) 633 atf_tc_fail_nonfatal("powf(%0.01f, +0.0) != 1.0",x[i]); 634 635 if (powf(x[i], -0.0) != 1.0) 636 atf_tc_fail_nonfatal("powf(%0.01f, -0.0) != 1.0",x[i]); 637 } 638 } 639 640 ATF_TC(powf_near_one_x_huge_y); 641 ATF_TC_HEAD(powf_near_one_x_huge_y, tc) 642 { 643 atf_tc_set_md_var(tc, "descr", "Test powf(->1, huge) != inf"); 644 } 645 646 ATF_TC_BODY(powf_near_one_x_huge_y, tc) 647 { 648 const float x = 0x1.ffffeep-1f; /* 9.999995e-01f */ 649 const float y = -0x1.000002p+27f; /* -1.342177e+08f */ 650 const float e = 0x1.d53532p+103f; /* 1.858724e+31f */ 651 const float ulp = __FLT_EPSILON__; 652 float z; 653 654 z = powf(x, y); 655 656 ATF_CHECK(isinf(z) == 0); 657 ATF_CHECK(fabsf(z - e) <= 2 * ulp); 658 } 659 660 661 ATF_TP_ADD_TCS(tp) 662 { 663 664 ATF_TP_ADD_TC(tp, pow_nan_x); 665 ATF_TP_ADD_TC(tp, pow_nan_y); 666 ATF_TP_ADD_TC(tp, pow_inf_neg_x); 667 ATF_TP_ADD_TC(tp, pow_inf_neg_y); 668 ATF_TP_ADD_TC(tp, pow_inf_pos_x); 669 ATF_TP_ADD_TC(tp, pow_inf_pos_y); 670 ATF_TP_ADD_TC(tp, pow_one_neg_x); 671 ATF_TP_ADD_TC(tp, pow_one_pos_x); 672 ATF_TP_ADD_TC(tp, pow_zero_x); 673 ATF_TP_ADD_TC(tp, pow_zero_y); 674 675 ATF_TP_ADD_TC(tp, powf_nan_x); 676 ATF_TP_ADD_TC(tp, powf_nan_y); 677 ATF_TP_ADD_TC(tp, powf_inf_neg_x); 678 ATF_TP_ADD_TC(tp, powf_inf_neg_y); 679 ATF_TP_ADD_TC(tp, powf_inf_pos_x); 680 ATF_TP_ADD_TC(tp, powf_inf_pos_y); 681 ATF_TP_ADD_TC(tp, powf_one_neg_x); 682 ATF_TP_ADD_TC(tp, powf_one_pos_x); 683 ATF_TP_ADD_TC(tp, powf_zero_x); 684 ATF_TP_ADD_TC(tp, powf_zero_y); 685 ATF_TP_ADD_TC(tp, powf_near_one_x_huge_y); 686 687 return atf_no_error(); 688 } 689