1 /* $NetBSD: t_log.c,v 1.13 2015/02/09 19:39:48 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_log.c,v 1.13 2015/02/09 19:39:48 martin Exp $"); 33 34 #include <atf-c.h> 35 36 #include <math.h> 37 #include <stdio.h> 38 #include <string.h> 39 40 /* 41 * log10(3) 42 */ 43 ATF_TC(log10_base); 44 ATF_TC_HEAD(log10_base, tc) 45 { 46 atf_tc_set_md_var(tc, "descr", "Test log10(10) == 1"); 47 } 48 49 ATF_TC_BODY(log10_base, tc) 50 { 51 ATF_CHECK(log10(10.0) == 1.0); 52 } 53 54 ATF_TC(log10_nan); 55 ATF_TC_HEAD(log10_nan, tc) 56 { 57 atf_tc_set_md_var(tc, "descr", "Test log10(NaN) == NaN"); 58 } 59 60 ATF_TC_BODY(log10_nan, tc) 61 { 62 const double x = 0.0L / 0.0L; 63 64 ATF_CHECK(isnan(x) != 0); 65 ATF_CHECK(isnan(log10(x)) != 0); 66 } 67 68 ATF_TC(log10_inf_neg); 69 ATF_TC_HEAD(log10_inf_neg, tc) 70 { 71 atf_tc_set_md_var(tc, "descr", "Test log10(-Inf) == NaN"); 72 } 73 74 ATF_TC_BODY(log10_inf_neg, tc) 75 { 76 const double x = -1.0L / 0.0L; 77 const double y = log10(x); 78 79 ATF_CHECK(isnan(y) != 0); 80 } 81 82 ATF_TC(log10_inf_pos); 83 ATF_TC_HEAD(log10_inf_pos, tc) 84 { 85 atf_tc_set_md_var(tc, "descr", "Test log10(+Inf) == +Inf"); 86 } 87 88 ATF_TC_BODY(log10_inf_pos, tc) 89 { 90 const double x = 1.0L / 0.0L; 91 92 ATF_CHECK(log10(x) == x); 93 } 94 95 ATF_TC(log10_one_pos); 96 ATF_TC_HEAD(log10_one_pos, tc) 97 { 98 atf_tc_set_md_var(tc, "descr", "Test log10(1.0) == +0.0"); 99 } 100 101 ATF_TC_BODY(log10_one_pos, tc) 102 { 103 const double x = log10(1.0); 104 const double y = 0.0L; 105 106 ATF_CHECK(x == y); 107 ATF_CHECK(signbit(x) == 0); 108 ATF_CHECK(signbit(y) == 0); 109 } 110 111 ATF_TC(log10_zero_neg); 112 ATF_TC_HEAD(log10_zero_neg, tc) 113 { 114 atf_tc_set_md_var(tc, "descr", "Test log10(-0.0) == -HUGE_VAL"); 115 } 116 117 ATF_TC_BODY(log10_zero_neg, tc) 118 { 119 const double x = -0.0L; 120 121 ATF_CHECK(log10(x) == -HUGE_VAL); 122 } 123 124 ATF_TC(log10_zero_pos); 125 ATF_TC_HEAD(log10_zero_pos, tc) 126 { 127 atf_tc_set_md_var(tc, "descr", "Test log10(+0.0) == -HUGE_VAL"); 128 } 129 130 ATF_TC_BODY(log10_zero_pos, tc) 131 { 132 const double x = 0.0L; 133 134 ATF_CHECK(log10(x) == -HUGE_VAL); 135 } 136 137 /* 138 * log10f(3) 139 */ 140 ATF_TC(log10f_base); 141 ATF_TC_HEAD(log10f_base, tc) 142 { 143 atf_tc_set_md_var(tc, "descr", "Test log10f(10) == 1"); 144 } 145 146 ATF_TC_BODY(log10f_base, tc) 147 { 148 ATF_CHECK(log10f(10.0) == 1.0); 149 } 150 151 ATF_TC(log10f_nan); 152 ATF_TC_HEAD(log10f_nan, tc) 153 { 154 atf_tc_set_md_var(tc, "descr", "Test log10f(NaN) == NaN"); 155 } 156 157 ATF_TC_BODY(log10f_nan, tc) 158 { 159 const float x = 0.0L / 0.0L; 160 161 ATF_CHECK(isnan(x) != 0); 162 ATF_CHECK(isnan(log10f(x)) != 0); 163 } 164 165 ATF_TC(log10f_inf_neg); 166 ATF_TC_HEAD(log10f_inf_neg, tc) 167 { 168 atf_tc_set_md_var(tc, "descr", "Test log10f(-Inf) == NaN"); 169 } 170 171 ATF_TC_BODY(log10f_inf_neg, tc) 172 { 173 const float x = -1.0L / 0.0L; 174 const float y = log10f(x); 175 176 ATF_CHECK(isnan(y) != 0); 177 } 178 179 ATF_TC(log10f_inf_pos); 180 ATF_TC_HEAD(log10f_inf_pos, tc) 181 { 182 atf_tc_set_md_var(tc, "descr", "Test log10f(+Inf) == +Inf"); 183 } 184 185 ATF_TC_BODY(log10f_inf_pos, tc) 186 { 187 const float x = 1.0L / 0.0L; 188 189 ATF_CHECK(log10f(x) == x); 190 } 191 192 ATF_TC(log10f_one_pos); 193 ATF_TC_HEAD(log10f_one_pos, tc) 194 { 195 atf_tc_set_md_var(tc, "descr", "Test log10f(1.0) == +0.0"); 196 } 197 198 ATF_TC_BODY(log10f_one_pos, tc) 199 { 200 const float x = log10f(1.0); 201 const float y = 0.0L; 202 203 ATF_CHECK(x == y); 204 ATF_CHECK(signbit(x) == 0); 205 ATF_CHECK(signbit(y) == 0); 206 } 207 208 ATF_TC(log10f_zero_neg); 209 ATF_TC_HEAD(log10f_zero_neg, tc) 210 { 211 atf_tc_set_md_var(tc, "descr", "Test log10f(-0.0) == -HUGE_VALF"); 212 } 213 214 ATF_TC_BODY(log10f_zero_neg, tc) 215 { 216 const float x = -0.0L; 217 218 ATF_CHECK(log10f(x) == -HUGE_VALF); 219 } 220 221 ATF_TC(log10f_zero_pos); 222 ATF_TC_HEAD(log10f_zero_pos, tc) 223 { 224 atf_tc_set_md_var(tc, "descr", "Test log10f(+0.0) == -HUGE_VALF"); 225 } 226 227 ATF_TC_BODY(log10f_zero_pos, tc) 228 { 229 const float x = 0.0L; 230 231 ATF_CHECK(log10f(x) == -HUGE_VALF); 232 } 233 234 /* 235 * log1p(3) 236 */ 237 ATF_TC(log1p_nan); 238 ATF_TC_HEAD(log1p_nan, tc) 239 { 240 atf_tc_set_md_var(tc, "descr", "Test log1p(NaN) == NaN"); 241 } 242 243 ATF_TC_BODY(log1p_nan, tc) 244 { 245 const double x = 0.0L / 0.0L; 246 247 ATF_CHECK(isnan(x) != 0); 248 ATF_CHECK(isnan(log1p(x)) != 0); 249 } 250 251 ATF_TC(log1p_inf_neg); 252 ATF_TC_HEAD(log1p_inf_neg, tc) 253 { 254 atf_tc_set_md_var(tc, "descr", "Test log1p(-Inf) == NaN"); 255 } 256 257 ATF_TC_BODY(log1p_inf_neg, tc) 258 { 259 const double x = -1.0L / 0.0L; 260 const double y = log1p(x); 261 262 if (isnan(y) == 0) { 263 atf_tc_expect_fail("PR lib/45362"); 264 atf_tc_fail("log1p(-Inf) != NaN"); 265 } 266 } 267 268 ATF_TC(log1p_inf_pos); 269 ATF_TC_HEAD(log1p_inf_pos, tc) 270 { 271 atf_tc_set_md_var(tc, "descr", "Test log1p(+Inf) == +Inf"); 272 } 273 274 ATF_TC_BODY(log1p_inf_pos, tc) 275 { 276 const double x = 1.0L / 0.0L; 277 278 ATF_CHECK(log1p(x) == x); 279 } 280 281 ATF_TC(log1p_one_neg); 282 ATF_TC_HEAD(log1p_one_neg, tc) 283 { 284 atf_tc_set_md_var(tc, "descr", "Test log1p(-1.0) == -HUGE_VAL"); 285 } 286 287 ATF_TC_BODY(log1p_one_neg, tc) 288 { 289 const double x = log1p(-1.0); 290 291 if (x != -HUGE_VAL) { 292 atf_tc_expect_fail("PR lib/45362"); 293 atf_tc_fail("log1p(-1.0) != -HUGE_VAL"); 294 } 295 } 296 297 ATF_TC(log1p_zero_neg); 298 ATF_TC_HEAD(log1p_zero_neg, tc) 299 { 300 atf_tc_set_md_var(tc, "descr", "Test log1p(-0.0) == -0.0"); 301 } 302 303 ATF_TC_BODY(log1p_zero_neg, tc) 304 { 305 const double x = -0.0L; 306 307 ATF_CHECK(log1p(x) == x); 308 } 309 310 ATF_TC(log1p_zero_pos); 311 ATF_TC_HEAD(log1p_zero_pos, tc) 312 { 313 atf_tc_set_md_var(tc, "descr", "Test log1p(+0.0) == +0.0"); 314 } 315 316 ATF_TC_BODY(log1p_zero_pos, tc) 317 { 318 const double x = 0.0L; 319 320 ATF_CHECK(log1p(x) == x); 321 } 322 323 /* 324 * log1pf(3) 325 */ 326 ATF_TC(log1pf_nan); 327 ATF_TC_HEAD(log1pf_nan, tc) 328 { 329 atf_tc_set_md_var(tc, "descr", "Test log1pf(NaN) == NaN"); 330 } 331 332 ATF_TC_BODY(log1pf_nan, tc) 333 { 334 const float x = 0.0L / 0.0L; 335 336 ATF_CHECK(isnan(x) != 0); 337 ATF_CHECK(isnan(log1pf(x)) != 0); 338 } 339 340 ATF_TC(log1pf_inf_neg); 341 ATF_TC_HEAD(log1pf_inf_neg, tc) 342 { 343 atf_tc_set_md_var(tc, "descr", "Test log1pf(-Inf) == NaN"); 344 } 345 346 ATF_TC_BODY(log1pf_inf_neg, tc) 347 { 348 const float x = -1.0L / 0.0L; 349 const float y = log1pf(x); 350 351 if (isnan(y) == 0) { 352 atf_tc_expect_fail("PR lib/45362"); 353 atf_tc_fail("log1pf(-Inf) != NaN"); 354 } 355 } 356 357 ATF_TC(log1pf_inf_pos); 358 ATF_TC_HEAD(log1pf_inf_pos, tc) 359 { 360 atf_tc_set_md_var(tc, "descr", "Test log1pf(+Inf) == +Inf"); 361 } 362 363 ATF_TC_BODY(log1pf_inf_pos, tc) 364 { 365 const float x = 1.0L / 0.0L; 366 367 ATF_CHECK(log1pf(x) == x); 368 } 369 370 ATF_TC(log1pf_one_neg); 371 ATF_TC_HEAD(log1pf_one_neg, tc) 372 { 373 atf_tc_set_md_var(tc, "descr", "Test log1pf(-1.0) == -HUGE_VALF"); 374 } 375 376 ATF_TC_BODY(log1pf_one_neg, tc) 377 { 378 const float x = log1pf(-1.0); 379 380 if (x != -HUGE_VALF) { 381 atf_tc_expect_fail("PR lib/45362"); 382 atf_tc_fail("log1pf(-1.0) != -HUGE_VALF"); 383 } 384 } 385 386 ATF_TC(log1pf_zero_neg); 387 ATF_TC_HEAD(log1pf_zero_neg, tc) 388 { 389 atf_tc_set_md_var(tc, "descr", "Test log1pf(-0.0) == -0.0"); 390 } 391 392 ATF_TC_BODY(log1pf_zero_neg, tc) 393 { 394 const float x = -0.0L; 395 396 ATF_CHECK(log1pf(x) == x); 397 } 398 399 ATF_TC(log1pf_zero_pos); 400 ATF_TC_HEAD(log1pf_zero_pos, tc) 401 { 402 atf_tc_set_md_var(tc, "descr", "Test log1pf(+0.0) == +0.0"); 403 } 404 405 ATF_TC_BODY(log1pf_zero_pos, tc) 406 { 407 const float x = 0.0L; 408 409 ATF_CHECK(log1pf(x) == x); 410 } 411 412 /* 413 * log2(3) 414 */ 415 ATF_TC(log2_base); 416 ATF_TC_HEAD(log2_base, tc) 417 { 418 atf_tc_set_md_var(tc, "descr", "Test log2(2) == 1"); 419 } 420 421 ATF_TC_BODY(log2_base, tc) 422 { 423 ATF_CHECK(log2(2.0) == 1.0); 424 } 425 426 ATF_TC(log2_nan); 427 ATF_TC_HEAD(log2_nan, tc) 428 { 429 atf_tc_set_md_var(tc, "descr", "Test log2(NaN) == NaN"); 430 } 431 432 ATF_TC_BODY(log2_nan, tc) 433 { 434 const double x = 0.0L / 0.0L; 435 436 ATF_CHECK(isnan(x) != 0); 437 ATF_CHECK(isnan(log2(x)) != 0); 438 } 439 440 ATF_TC(log2_inf_neg); 441 ATF_TC_HEAD(log2_inf_neg, tc) 442 { 443 atf_tc_set_md_var(tc, "descr", "Test log2(-Inf) == NaN"); 444 } 445 446 ATF_TC_BODY(log2_inf_neg, tc) 447 { 448 const double x = -1.0L / 0.0L; 449 const double y = log2(x); 450 451 ATF_CHECK(isnan(y) != 0); 452 } 453 454 ATF_TC(log2_inf_pos); 455 ATF_TC_HEAD(log2_inf_pos, tc) 456 { 457 atf_tc_set_md_var(tc, "descr", "Test log2(+Inf) == +Inf"); 458 } 459 460 ATF_TC_BODY(log2_inf_pos, tc) 461 { 462 const double x = 1.0L / 0.0L; 463 464 ATF_CHECK(log2(x) == x); 465 } 466 467 ATF_TC(log2_one_pos); 468 ATF_TC_HEAD(log2_one_pos, tc) 469 { 470 atf_tc_set_md_var(tc, "descr", "Test log2(1.0) == +0.0"); 471 } 472 473 ATF_TC_BODY(log2_one_pos, tc) 474 { 475 const double x = log2(1.0); 476 const double y = 0.0L; 477 478 ATF_CHECK(x == y); 479 ATF_CHECK(signbit(x) == 0); 480 ATF_CHECK(signbit(y) == 0); 481 } 482 483 ATF_TC(log2_zero_neg); 484 ATF_TC_HEAD(log2_zero_neg, tc) 485 { 486 atf_tc_set_md_var(tc, "descr", "Test log2(-0.0) == -HUGE_VAL"); 487 } 488 489 ATF_TC_BODY(log2_zero_neg, tc) 490 { 491 const double x = -0.0L; 492 493 ATF_CHECK(log2(x) == -HUGE_VAL); 494 } 495 496 ATF_TC(log2_zero_pos); 497 ATF_TC_HEAD(log2_zero_pos, tc) 498 { 499 atf_tc_set_md_var(tc, "descr", "Test log2(+0.0) == -HUGE_VAL"); 500 } 501 502 ATF_TC_BODY(log2_zero_pos, tc) 503 { 504 const double x = 0.0L; 505 506 ATF_CHECK(log2(x) == -HUGE_VAL); 507 } 508 509 /* 510 * log2f(3) 511 */ 512 ATF_TC(log2f_base); 513 ATF_TC_HEAD(log2f_base, tc) 514 { 515 atf_tc_set_md_var(tc, "descr", "Test log2f(2) == 1"); 516 } 517 518 ATF_TC_BODY(log2f_base, tc) 519 { 520 ATF_CHECK(log2f(2.0) == 1.0); 521 } 522 523 ATF_TC(log2f_nan); 524 ATF_TC_HEAD(log2f_nan, tc) 525 { 526 atf_tc_set_md_var(tc, "descr", "Test log2f(NaN) == NaN"); 527 } 528 529 ATF_TC_BODY(log2f_nan, tc) 530 { 531 const float x = 0.0L / 0.0L; 532 533 ATF_CHECK(isnan(x) != 0); 534 ATF_CHECK(isnan(log2f(x)) != 0); 535 } 536 537 ATF_TC(log2f_inf_neg); 538 ATF_TC_HEAD(log2f_inf_neg, tc) 539 { 540 atf_tc_set_md_var(tc, "descr", "Test log2f(-Inf) == NaN"); 541 } 542 543 ATF_TC_BODY(log2f_inf_neg, tc) 544 { 545 const float x = -1.0L / 0.0L; 546 const float y = log2f(x); 547 548 ATF_CHECK(isnan(y) != 0); 549 } 550 551 ATF_TC(log2f_inf_pos); 552 ATF_TC_HEAD(log2f_inf_pos, tc) 553 { 554 atf_tc_set_md_var(tc, "descr", "Test log2f(+Inf) == +Inf"); 555 } 556 557 ATF_TC_BODY(log2f_inf_pos, tc) 558 { 559 const float x = 1.0L / 0.0L; 560 561 ATF_CHECK(log2f(x) == x); 562 } 563 564 ATF_TC(log2f_one_pos); 565 ATF_TC_HEAD(log2f_one_pos, tc) 566 { 567 atf_tc_set_md_var(tc, "descr", "Test log2f(1.0) == +0.0"); 568 } 569 570 ATF_TC_BODY(log2f_one_pos, tc) 571 { 572 const float x = log2f(1.0); 573 const float y = 0.0L; 574 575 ATF_CHECK(x == y); 576 ATF_CHECK(signbit(x) == 0); 577 ATF_CHECK(signbit(y) == 0); 578 } 579 580 ATF_TC(log2f_zero_neg); 581 ATF_TC_HEAD(log2f_zero_neg, tc) 582 { 583 atf_tc_set_md_var(tc, "descr", "Test log2f(-0.0) == -HUGE_VALF"); 584 } 585 586 ATF_TC_BODY(log2f_zero_neg, tc) 587 { 588 const float x = -0.0L; 589 590 ATF_CHECK(log2f(x) == -HUGE_VALF); 591 } 592 593 ATF_TC(log2f_zero_pos); 594 ATF_TC_HEAD(log2f_zero_pos, tc) 595 { 596 atf_tc_set_md_var(tc, "descr", "Test log2f(+0.0) == -HUGE_VALF"); 597 } 598 599 ATF_TC_BODY(log2f_zero_pos, tc) 600 { 601 const float x = 0.0L; 602 603 ATF_CHECK(log2f(x) == -HUGE_VALF); 604 } 605 606 /* 607 * log(3) 608 */ 609 ATF_TC(log_base); 610 ATF_TC_HEAD(log_base, tc) 611 { 612 atf_tc_set_md_var(tc, "descr", "Test log(e) == 1"); 613 } 614 615 ATF_TC_BODY(log_base, tc) 616 { 617 const double eps = 1.0e-38; 618 619 if (fabs(log(M_E) - 1.0) > eps) 620 atf_tc_fail_nonfatal("log(e) != 1"); 621 } 622 623 ATF_TC(log_nan); 624 ATF_TC_HEAD(log_nan, tc) 625 { 626 atf_tc_set_md_var(tc, "descr", "Test log(NaN) == NaN"); 627 } 628 629 ATF_TC_BODY(log_nan, tc) 630 { 631 const double x = 0.0L / 0.0L; 632 633 ATF_CHECK(isnan(x) != 0); 634 ATF_CHECK(isnan(log(x)) != 0); 635 } 636 637 ATF_TC(log_inf_neg); 638 ATF_TC_HEAD(log_inf_neg, tc) 639 { 640 atf_tc_set_md_var(tc, "descr", "Test log(-Inf) == NaN"); 641 } 642 643 ATF_TC_BODY(log_inf_neg, tc) 644 { 645 const double x = -1.0L / 0.0L; 646 const double y = log(x); 647 648 ATF_CHECK(isnan(y) != 0); 649 } 650 651 ATF_TC(log_inf_pos); 652 ATF_TC_HEAD(log_inf_pos, tc) 653 { 654 atf_tc_set_md_var(tc, "descr", "Test log(+Inf) == +Inf"); 655 } 656 657 ATF_TC_BODY(log_inf_pos, tc) 658 { 659 const double x = 1.0L / 0.0L; 660 661 ATF_CHECK(log(x) == x); 662 } 663 664 ATF_TC(log_one_pos); 665 ATF_TC_HEAD(log_one_pos, tc) 666 { 667 atf_tc_set_md_var(tc, "descr", "Test log(1.0) == +0.0"); 668 } 669 670 ATF_TC_BODY(log_one_pos, tc) 671 { 672 const double x = log(1.0); 673 const double y = 0.0L; 674 675 ATF_CHECK(x == y); 676 ATF_CHECK(signbit(x) == 0); 677 ATF_CHECK(signbit(y) == 0); 678 } 679 680 ATF_TC(log_zero_neg); 681 ATF_TC_HEAD(log_zero_neg, tc) 682 { 683 atf_tc_set_md_var(tc, "descr", "Test log(-0.0) == -HUGE_VAL"); 684 } 685 686 ATF_TC_BODY(log_zero_neg, tc) 687 { 688 const double x = -0.0L; 689 690 ATF_CHECK(log(x) == -HUGE_VAL); 691 } 692 693 ATF_TC(log_zero_pos); 694 ATF_TC_HEAD(log_zero_pos, tc) 695 { 696 atf_tc_set_md_var(tc, "descr", "Test log(+0.0) == -HUGE_VAL"); 697 } 698 699 ATF_TC_BODY(log_zero_pos, tc) 700 { 701 const double x = 0.0L; 702 703 ATF_CHECK(log(x) == -HUGE_VAL); 704 } 705 706 /* 707 * logf(3) 708 */ 709 ATF_TC(logf_base); 710 ATF_TC_HEAD(logf_base, tc) 711 { 712 atf_tc_set_md_var(tc, "descr", "Test logf(e) == 1"); 713 } 714 715 ATF_TC_BODY(logf_base, tc) 716 { 717 const float eps = 1.0e-7; 718 719 if (fabsf(logf(M_E) - 1.0f) > eps) 720 atf_tc_fail_nonfatal("logf(e) != 1"); 721 } 722 723 ATF_TC(logf_nan); 724 ATF_TC_HEAD(logf_nan, tc) 725 { 726 atf_tc_set_md_var(tc, "descr", "Test logf(NaN) == NaN"); 727 } 728 729 ATF_TC_BODY(logf_nan, tc) 730 { 731 const float x = 0.0L / 0.0L; 732 733 ATF_CHECK(isnan(x) != 0); 734 ATF_CHECK(isnan(logf(x)) != 0); 735 } 736 737 ATF_TC(logf_inf_neg); 738 ATF_TC_HEAD(logf_inf_neg, tc) 739 { 740 atf_tc_set_md_var(tc, "descr", "Test logf(-Inf) == NaN"); 741 } 742 743 ATF_TC_BODY(logf_inf_neg, tc) 744 { 745 const float x = -1.0L / 0.0L; 746 const float y = logf(x); 747 748 ATF_CHECK(isnan(y) != 0); 749 } 750 751 ATF_TC(logf_inf_pos); 752 ATF_TC_HEAD(logf_inf_pos, tc) 753 { 754 atf_tc_set_md_var(tc, "descr", "Test logf(+Inf) == +Inf"); 755 } 756 757 ATF_TC_BODY(logf_inf_pos, tc) 758 { 759 const float x = 1.0L / 0.0L; 760 761 ATF_CHECK(logf(x) == x); 762 } 763 764 ATF_TC(logf_one_pos); 765 ATF_TC_HEAD(logf_one_pos, tc) 766 { 767 atf_tc_set_md_var(tc, "descr", "Test logf(1.0) == +0.0"); 768 } 769 770 ATF_TC_BODY(logf_one_pos, tc) 771 { 772 const float x = logf(1.0); 773 const float y = 0.0L; 774 775 ATF_CHECK(x == y); 776 ATF_CHECK(signbit(x) == 0); 777 ATF_CHECK(signbit(y) == 0); 778 } 779 780 ATF_TC(logf_zero_neg); 781 ATF_TC_HEAD(logf_zero_neg, tc) 782 { 783 atf_tc_set_md_var(tc, "descr", "Test logf(-0.0) == -HUGE_VALF"); 784 } 785 786 ATF_TC_BODY(logf_zero_neg, tc) 787 { 788 const float x = -0.0L; 789 790 ATF_CHECK(logf(x) == -HUGE_VALF); 791 } 792 793 ATF_TC(logf_zero_pos); 794 ATF_TC_HEAD(logf_zero_pos, tc) 795 { 796 atf_tc_set_md_var(tc, "descr", "Test logf(+0.0) == -HUGE_VALF"); 797 } 798 799 ATF_TC_BODY(logf_zero_pos, tc) 800 { 801 const float x = 0.0L; 802 803 ATF_CHECK(logf(x) == -HUGE_VALF); 804 } 805 806 ATF_TP_ADD_TCS(tp) 807 { 808 809 ATF_TP_ADD_TC(tp, log10_base); 810 ATF_TP_ADD_TC(tp, log10_nan); 811 ATF_TP_ADD_TC(tp, log10_inf_neg); 812 ATF_TP_ADD_TC(tp, log10_inf_pos); 813 ATF_TP_ADD_TC(tp, log10_one_pos); 814 ATF_TP_ADD_TC(tp, log10_zero_neg); 815 ATF_TP_ADD_TC(tp, log10_zero_pos); 816 817 ATF_TP_ADD_TC(tp, log10f_base); 818 ATF_TP_ADD_TC(tp, log10f_nan); 819 ATF_TP_ADD_TC(tp, log10f_inf_neg); 820 ATF_TP_ADD_TC(tp, log10f_inf_pos); 821 ATF_TP_ADD_TC(tp, log10f_one_pos); 822 ATF_TP_ADD_TC(tp, log10f_zero_neg); 823 ATF_TP_ADD_TC(tp, log10f_zero_pos); 824 825 ATF_TP_ADD_TC(tp, log1p_nan); 826 ATF_TP_ADD_TC(tp, log1p_inf_neg); 827 ATF_TP_ADD_TC(tp, log1p_inf_pos); 828 ATF_TP_ADD_TC(tp, log1p_one_neg); 829 ATF_TP_ADD_TC(tp, log1p_zero_neg); 830 ATF_TP_ADD_TC(tp, log1p_zero_pos); 831 832 ATF_TP_ADD_TC(tp, log1pf_nan); 833 ATF_TP_ADD_TC(tp, log1pf_inf_neg); 834 ATF_TP_ADD_TC(tp, log1pf_inf_pos); 835 ATF_TP_ADD_TC(tp, log1pf_one_neg); 836 ATF_TP_ADD_TC(tp, log1pf_zero_neg); 837 ATF_TP_ADD_TC(tp, log1pf_zero_pos); 838 839 ATF_TP_ADD_TC(tp, log2_base); 840 ATF_TP_ADD_TC(tp, log2_nan); 841 ATF_TP_ADD_TC(tp, log2_inf_neg); 842 ATF_TP_ADD_TC(tp, log2_inf_pos); 843 ATF_TP_ADD_TC(tp, log2_one_pos); 844 ATF_TP_ADD_TC(tp, log2_zero_neg); 845 ATF_TP_ADD_TC(tp, log2_zero_pos); 846 847 ATF_TP_ADD_TC(tp, log2f_base); 848 ATF_TP_ADD_TC(tp, log2f_nan); 849 ATF_TP_ADD_TC(tp, log2f_inf_neg); 850 ATF_TP_ADD_TC(tp, log2f_inf_pos); 851 ATF_TP_ADD_TC(tp, log2f_one_pos); 852 ATF_TP_ADD_TC(tp, log2f_zero_neg); 853 ATF_TP_ADD_TC(tp, log2f_zero_pos); 854 855 ATF_TP_ADD_TC(tp, log_base); 856 ATF_TP_ADD_TC(tp, log_nan); 857 ATF_TP_ADD_TC(tp, log_inf_neg); 858 ATF_TP_ADD_TC(tp, log_inf_pos); 859 ATF_TP_ADD_TC(tp, log_one_pos); 860 ATF_TP_ADD_TC(tp, log_zero_neg); 861 ATF_TP_ADD_TC(tp, log_zero_pos); 862 863 ATF_TP_ADD_TC(tp, logf_base); 864 ATF_TP_ADD_TC(tp, logf_nan); 865 ATF_TP_ADD_TC(tp, logf_inf_neg); 866 ATF_TP_ADD_TC(tp, logf_inf_pos); 867 ATF_TP_ADD_TC(tp, logf_one_pos); 868 ATF_TP_ADD_TC(tp, logf_zero_neg); 869 ATF_TP_ADD_TC(tp, logf_zero_pos); 870 871 return atf_no_error(); 872 } 873