1 /* Test of POSIX compatible vasprintf() and asprintf() functions.
2 Copyright (C) 2007 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
24 #include "vasprintf.h"
32 #define ASSERT(expr) if (!(expr)) abort ();
34 /* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */
39 static double zero = 0.0;
43 # define NaN() (0.0 / 0.0)
47 test_function (int (*my_asprintf) (char **, const char *, ...))
51 /* Test return value convention. */
53 for (repeat = 0; repeat <= 8; repeat++)
56 int retval = asprintf (&result, "%d", 12345);
58 ASSERT (result != NULL);
59 ASSERT (strcmp (result, "12345") == 0);
63 /* Test support of size specifiers as in C99. */
68 my_asprintf (&result, "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
69 ASSERT (result != NULL);
70 ASSERT (strcmp (result, "12345671 33") == 0);
71 ASSERT (retval == strlen (result));
78 my_asprintf (&result, "%zu %d", (size_t) 12345672, 33, 44, 55);
79 ASSERT (result != NULL);
80 ASSERT (strcmp (result, "12345672 33") == 0);
81 ASSERT (retval == strlen (result));
88 my_asprintf (&result, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
89 ASSERT (result != NULL);
90 ASSERT (strcmp (result, "12345673 33") == 0);
91 ASSERT (retval == strlen (result));
99 my_asprintf (&result, "%Lg %d", (long double) 1.5, 33, 44, 55);
100 ASSERT (result != NULL);
101 ASSERT (strcmp (result, "1.5 33") == 0);
102 ASSERT (retval == strlen (result));
107 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
108 output of floating-point numbers. */
110 { /* A positive number. */
113 my_asprintf (&result, "%a %d", 3.1416015625, 33, 44, 55);
114 ASSERT (result != NULL);
115 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
116 || strcmp (result, "0x3.244p+0 33") == 0
117 || strcmp (result, "0x6.488p-1 33") == 0
118 || strcmp (result, "0xc.91p-2 33") == 0);
119 ASSERT (retval == strlen (result));
123 { /* A negative number. */
126 my_asprintf (&result, "%A %d", -3.1416015625, 33, 44, 55);
127 ASSERT (result != NULL);
128 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
129 || strcmp (result, "-0X3.244P+0 33") == 0
130 || strcmp (result, "-0X6.488P-1 33") == 0
131 || strcmp (result, "-0XC.91P-2 33") == 0);
132 ASSERT (retval == strlen (result));
136 { /* Positive zero. */
139 my_asprintf (&result, "%a %d", 0.0, 33, 44, 55);
140 ASSERT (result != NULL);
141 ASSERT (strcmp (result, "0x0p+0 33") == 0);
142 ASSERT (retval == strlen (result));
146 { /* Negative zero. */
149 my_asprintf (&result, "%a %d", -0.0, 33, 44, 55);
150 ASSERT (result != NULL);
151 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
152 ASSERT (retval == strlen (result));
156 { /* Positive infinity. */
159 my_asprintf (&result, "%a %d", 1.0 / 0.0, 33, 44, 55);
160 ASSERT (result != NULL);
161 ASSERT (strcmp (result, "inf 33") == 0);
162 ASSERT (retval == strlen (result));
166 { /* Negative infinity. */
169 my_asprintf (&result, "%a %d", -1.0 / 0.0, 33, 44, 55);
170 ASSERT (result != NULL);
171 ASSERT (strcmp (result, "-inf 33") == 0);
172 ASSERT (retval == strlen (result));
179 my_asprintf (&result, "%a %d", NaN (), 33, 44, 55);
180 ASSERT (result != NULL);
181 ASSERT (strcmp (result, "nan 33") == 0);
182 ASSERT (retval == strlen (result));
186 { /* Rounding near the decimal point. */
189 my_asprintf (&result, "%.0a %d", 1.5, 33, 44, 55);
190 ASSERT (result != NULL);
191 ASSERT (strcmp (result, "0x2p+0 33") == 0
192 || strcmp (result, "0x3p-1 33") == 0
193 || strcmp (result, "0x6p-2 33") == 0
194 || strcmp (result, "0xcp-3 33") == 0);
195 ASSERT (retval == strlen (result));
199 { /* Rounding with precision 0. */
202 my_asprintf (&result, "%.0a %d", 1.51, 33, 44, 55);
203 ASSERT (result != NULL);
204 ASSERT (strcmp (result, "0x2p+0 33") == 0
205 || strcmp (result, "0x3p-1 33") == 0
206 || strcmp (result, "0x6p-2 33") == 0
207 || strcmp (result, "0xcp-3 33") == 0);
208 ASSERT (retval == strlen (result));
212 { /* Rounding with precision 1. */
215 my_asprintf (&result, "%.1a %d", 1.51, 33, 44, 55);
216 ASSERT (result != NULL);
217 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
218 || strcmp (result, "0x3.0p-1 33") == 0
219 || strcmp (result, "0x6.1p-2 33") == 0
220 || strcmp (result, "0xc.1p-3 33") == 0);
221 ASSERT (retval == strlen (result));
225 { /* Rounding with precision 2. */
228 my_asprintf (&result, "%.2a %d", 1.51, 33, 44, 55);
229 ASSERT (result != NULL);
230 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
231 || strcmp (result, "0x3.05p-1 33") == 0
232 || strcmp (result, "0x6.0ap-2 33") == 0
233 || strcmp (result, "0xc.14p-3 33") == 0);
234 ASSERT (retval == strlen (result));
238 { /* Rounding with precision 3. */
241 my_asprintf (&result, "%.3a %d", 1.51, 33, 44, 55);
242 ASSERT (result != NULL);
243 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
244 || strcmp (result, "0x3.052p-1 33") == 0
245 || strcmp (result, "0x6.0a4p-2 33") == 0
246 || strcmp (result, "0xc.148p-3 33") == 0);
247 ASSERT (retval == strlen (result));
251 { /* Rounding can turn a ...FFF into a ...000. */
254 my_asprintf (&result, "%.3a %d", 1.49999, 33, 44, 55);
255 ASSERT (result != NULL);
256 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
257 || strcmp (result, "0x3.000p-1 33") == 0
258 || strcmp (result, "0x6.000p-2 33") == 0
259 || strcmp (result, "0xc.000p-3 33") == 0);
260 ASSERT (retval == strlen (result));
264 { /* Rounding can turn a ...FFF into a ...000.
265 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
268 my_asprintf (&result, "%.1a %d", 1.999, 33, 44, 55);
269 ASSERT (result != NULL);
270 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
271 || strcmp (result, "0x2.0p+0 33") == 0
272 || strcmp (result, "0x4.0p-1 33") == 0
273 || strcmp (result, "0x8.0p-2 33") == 0);
274 ASSERT (retval == strlen (result));
281 my_asprintf (&result, "%10a %d", 1.75, 33, 44, 55);
282 ASSERT (result != NULL);
283 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
284 || strcmp (result, " 0x3.8p-1 33") == 0
285 || strcmp (result, " 0x7p-2 33") == 0
286 || strcmp (result, " 0xep-3 33") == 0);
287 ASSERT (retval == strlen (result));
291 { /* Small precision. */
294 my_asprintf (&result, "%.10a %d", 1.75, 33, 44, 55);
295 ASSERT (result != NULL);
296 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
297 || strcmp (result, "0x3.8000000000p-1 33") == 0
298 || strcmp (result, "0x7.0000000000p-2 33") == 0
299 || strcmp (result, "0xe.0000000000p-3 33") == 0);
300 ASSERT (retval == strlen (result));
304 { /* Large precision. */
307 my_asprintf (&result, "%.50a %d", 1.75, 33, 44, 55);
308 ASSERT (result != NULL);
309 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
310 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
311 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
312 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
313 ASSERT (retval == strlen (result));
320 my_asprintf (&result, "%-10a %d", 1.75, 33, 44, 55);
321 ASSERT (result != NULL);
322 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
323 || strcmp (result, "0x3.8p-1 33") == 0
324 || strcmp (result, "0x7p-2 33") == 0
325 || strcmp (result, "0xep-3 33") == 0);
326 ASSERT (retval == strlen (result));
330 { /* FLAG_SHOWSIGN. */
333 my_asprintf (&result, "%+a %d", 1.75, 33, 44, 55);
334 ASSERT (result != NULL);
335 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
336 || strcmp (result, "+0x3.8p-1 33") == 0
337 || strcmp (result, "+0x7p-2 33") == 0
338 || strcmp (result, "+0xep-3 33") == 0);
339 ASSERT (retval == strlen (result));
346 my_asprintf (&result, "% a %d", 1.75, 33, 44, 55);
347 ASSERT (result != NULL);
348 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
349 || strcmp (result, " 0x3.8p-1 33") == 0
350 || strcmp (result, " 0x7p-2 33") == 0
351 || strcmp (result, " 0xep-3 33") == 0);
352 ASSERT (retval == strlen (result));
359 my_asprintf (&result, "%#a %d", 1.75, 33, 44, 55);
360 ASSERT (result != NULL);
361 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
362 || strcmp (result, "0x3.8p-1 33") == 0
363 || strcmp (result, "0x7.p-2 33") == 0
364 || strcmp (result, "0xe.p-3 33") == 0);
365 ASSERT (retval == strlen (result));
372 my_asprintf (&result, "%#a %d", 1.0, 33, 44, 55);
373 ASSERT (result != NULL);
374 ASSERT (strcmp (result, "0x1.p+0 33") == 0
375 || strcmp (result, "0x2.p-1 33") == 0
376 || strcmp (result, "0x4.p-2 33") == 0
377 || strcmp (result, "0x8.p-3 33") == 0);
378 ASSERT (retval == strlen (result));
382 { /* FLAG_ZERO with finite number. */
385 my_asprintf (&result, "%010a %d", 1.75, 33, 44, 55);
386 ASSERT (result != NULL);
387 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
388 || strcmp (result, "0x003.8p-1 33") == 0
389 || strcmp (result, "0x00007p-2 33") == 0
390 || strcmp (result, "0x0000ep-3 33") == 0);
391 ASSERT (retval == strlen (result));
395 { /* FLAG_ZERO with infinite number. */
398 my_asprintf (&result, "%010a %d", 1.0 / 0.0, 33, 44, 55);
399 ASSERT (result != NULL);
400 ASSERT (strcmp (result, " inf 33") == 0);
401 ASSERT (retval == strlen (result));
405 { /* FLAG_ZERO with NaN. */
408 my_asprintf (&result, "%010a %d", NaN (), 33, 44, 55);
409 ASSERT (result != NULL);
410 ASSERT (strcmp (result, " nan 33") == 0);
411 ASSERT (retval == strlen (result));
417 { /* A positive number. */
420 my_asprintf (&result, "%La %d", 3.1416015625L, 33, 44, 55);
421 ASSERT (result != NULL);
422 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
423 || strcmp (result, "0x3.244p+0 33") == 0
424 || strcmp (result, "0x6.488p-1 33") == 0
425 || strcmp (result, "0xc.91p-2 33") == 0);
426 ASSERT (retval == strlen (result));
430 { /* A negative number. */
433 my_asprintf (&result, "%LA %d", -3.1416015625L, 33, 44, 55);
434 ASSERT (result != NULL);
435 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
436 || strcmp (result, "-0X3.244P+0 33") == 0
437 || strcmp (result, "-0X6.488P-1 33") == 0
438 || strcmp (result, "-0XC.91P-2 33") == 0);
439 ASSERT (retval == strlen (result));
443 { /* Positive zero. */
446 my_asprintf (&result, "%La %d", 0.0L, 33, 44, 55);
447 ASSERT (result != NULL);
448 ASSERT (strcmp (result, "0x0p+0 33") == 0);
449 ASSERT (retval == strlen (result));
453 { /* Negative zero. */
456 my_asprintf (&result, "%La %d", -0.0L, 33, 44, 55);
457 ASSERT (result != NULL);
458 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
459 ASSERT (retval == strlen (result));
463 { /* Positive infinity. */
466 my_asprintf (&result, "%La %d", 1.0L / 0.0L, 33, 44, 55);
467 ASSERT (result != NULL);
468 ASSERT (strcmp (result, "inf 33") == 0);
469 ASSERT (retval == strlen (result));
473 { /* Negative infinity. */
476 my_asprintf (&result, "%La %d", -1.0L / 0.0L, 33, 44, 55);
477 ASSERT (result != NULL);
478 ASSERT (strcmp (result, "-inf 33") == 0);
479 ASSERT (retval == strlen (result));
486 my_asprintf (&result, "%La %d", 0.0L / 0.0L, 33, 44, 55);
487 ASSERT (result != NULL);
488 ASSERT (strcmp (result, "nan 33") == 0);
489 ASSERT (retval == strlen (result));
493 { /* Rounding near the decimal point. */
496 my_asprintf (&result, "%.0La %d", 1.5L, 33, 44, 55);
497 ASSERT (result != NULL);
498 ASSERT (strcmp (result, "0x2p+0 33") == 0
499 || strcmp (result, "0x3p-1 33") == 0
500 || strcmp (result, "0x6p-2 33") == 0
501 || strcmp (result, "0xcp-3 33") == 0);
502 ASSERT (retval == strlen (result));
506 { /* Rounding with precision 0. */
509 my_asprintf (&result, "%.0La %d", 1.51L, 33, 44, 55);
510 ASSERT (result != NULL);
511 ASSERT (strcmp (result, "0x2p+0 33") == 0
512 || strcmp (result, "0x3p-1 33") == 0
513 || strcmp (result, "0x6p-2 33") == 0
514 || strcmp (result, "0xcp-3 33") == 0);
515 ASSERT (retval == strlen (result));
519 { /* Rounding with precision 1. */
522 my_asprintf (&result, "%.1La %d", 1.51L, 33, 44, 55);
523 ASSERT (result != NULL);
524 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
525 || strcmp (result, "0x3.0p-1 33") == 0
526 || strcmp (result, "0x6.1p-2 33") == 0
527 || strcmp (result, "0xc.1p-3 33") == 0);
528 ASSERT (retval == strlen (result));
532 { /* Rounding with precision 2. */
535 my_asprintf (&result, "%.2La %d", 1.51L, 33, 44, 55);
536 ASSERT (result != NULL);
537 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
538 || strcmp (result, "0x3.05p-1 33") == 0
539 || strcmp (result, "0x6.0ap-2 33") == 0
540 || strcmp (result, "0xc.14p-3 33") == 0);
541 ASSERT (retval == strlen (result));
545 { /* Rounding with precision 3. */
548 my_asprintf (&result, "%.3La %d", 1.51L, 33, 44, 55);
549 ASSERT (result != NULL);
550 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
551 || strcmp (result, "0x3.052p-1 33") == 0
552 || strcmp (result, "0x6.0a4p-2 33") == 0
553 || strcmp (result, "0xc.148p-3 33") == 0);
554 ASSERT (retval == strlen (result));
558 { /* Rounding can turn a ...FFF into a ...000. */
561 my_asprintf (&result, "%.3La %d", 1.49999L, 33, 44, 55);
562 ASSERT (result != NULL);
563 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
564 || strcmp (result, "0x3.000p-1 33") == 0
565 || strcmp (result, "0x6.000p-2 33") == 0
566 || strcmp (result, "0xc.000p-3 33") == 0);
567 ASSERT (retval == strlen (result));
571 { /* Rounding can turn a ...FFF into a ...000.
572 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
573 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
576 my_asprintf (&result, "%.1La %d", 1.999L, 33, 44, 55);
577 ASSERT (result != NULL);
578 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
579 || strcmp (result, "0x2.0p+0 33") == 0
580 || strcmp (result, "0x4.0p-1 33") == 0
581 || strcmp (result, "0x8.0p-2 33") == 0);
582 ASSERT (retval == strlen (result));
589 my_asprintf (&result, "%10La %d", 1.75L, 33, 44, 55);
590 ASSERT (result != NULL);
591 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
592 || strcmp (result, " 0x3.8p-1 33") == 0
593 || strcmp (result, " 0x7p-2 33") == 0
594 || strcmp (result, " 0xep-3 33") == 0);
595 ASSERT (retval == strlen (result));
599 { /* Small precision. */
602 my_asprintf (&result, "%.10La %d", 1.75L, 33, 44, 55);
603 ASSERT (result != NULL);
604 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
605 || strcmp (result, "0x3.8000000000p-1 33") == 0
606 || strcmp (result, "0x7.0000000000p-2 33") == 0
607 || strcmp (result, "0xe.0000000000p-3 33") == 0);
608 ASSERT (retval == strlen (result));
612 { /* Large precision. */
615 my_asprintf (&result, "%.50La %d", 1.75L, 33, 44, 55);
616 ASSERT (result != NULL);
617 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
618 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
619 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
620 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
621 ASSERT (retval == strlen (result));
628 my_asprintf (&result, "%-10La %d", 1.75L, 33, 44, 55);
629 ASSERT (result != NULL);
630 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
631 || strcmp (result, "0x3.8p-1 33") == 0
632 || strcmp (result, "0x7p-2 33") == 0
633 || strcmp (result, "0xep-3 33") == 0);
634 ASSERT (retval == strlen (result));
638 { /* FLAG_SHOWSIGN. */
641 my_asprintf (&result, "%+La %d", 1.75L, 33, 44, 55);
642 ASSERT (result != NULL);
643 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
644 || strcmp (result, "+0x3.8p-1 33") == 0
645 || strcmp (result, "+0x7p-2 33") == 0
646 || strcmp (result, "+0xep-3 33") == 0);
647 ASSERT (retval == strlen (result));
654 my_asprintf (&result, "% La %d", 1.75L, 33, 44, 55);
655 ASSERT (result != NULL);
656 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
657 || strcmp (result, " 0x3.8p-1 33") == 0
658 || strcmp (result, " 0x7p-2 33") == 0
659 || strcmp (result, " 0xep-3 33") == 0);
660 ASSERT (retval == strlen (result));
667 my_asprintf (&result, "%#La %d", 1.75L, 33, 44, 55);
668 ASSERT (result != NULL);
669 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
670 || strcmp (result, "0x3.8p-1 33") == 0
671 || strcmp (result, "0x7.p-2 33") == 0
672 || strcmp (result, "0xe.p-3 33") == 0);
673 ASSERT (retval == strlen (result));
680 my_asprintf (&result, "%#La %d", 1.0L, 33, 44, 55);
681 ASSERT (result != NULL);
682 ASSERT (strcmp (result, "0x1.p+0 33") == 0
683 || strcmp (result, "0x2.p-1 33") == 0
684 || strcmp (result, "0x4.p-2 33") == 0
685 || strcmp (result, "0x8.p-3 33") == 0);
686 ASSERT (retval == strlen (result));
690 { /* FLAG_ZERO with finite number. */
693 my_asprintf (&result, "%010La %d", 1.75L, 33, 44, 55);
694 ASSERT (result != NULL);
695 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
696 || strcmp (result, "0x003.8p-1 33") == 0
697 || strcmp (result, "0x00007p-2 33") == 0
698 || strcmp (result, "0x0000ep-3 33") == 0);
699 ASSERT (retval == strlen (result));
703 { /* FLAG_ZERO with infinite number. */
706 my_asprintf (&result, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
707 ASSERT (result != NULL);
708 ASSERT (strcmp (result, " inf 33") == 0);
709 ASSERT (retval == strlen (result));
713 { /* FLAG_ZERO with NaN. */
716 my_asprintf (&result, "%010La %d", 0.0L / 0.0L, 33, 44, 55);
717 ASSERT (result != NULL);
718 ASSERT (strcmp (result, " nan 33") == 0);
719 ASSERT (retval == strlen (result));
725 /* Test the support of the %n format directive. */
731 my_asprintf (&result, "%d %n", 123, &count, 33, 44, 55);
732 ASSERT (result != NULL);
733 ASSERT (strcmp (result, "123 ") == 0);
734 ASSERT (retval == strlen (result));
739 /* Test the support of the POSIX/XSI format strings with positions. */
744 my_asprintf (&result, "%2$d %1$d", 33, 55);
745 ASSERT (result != NULL);
746 ASSERT (strcmp (result, "55 33") == 0);
747 ASSERT (retval == strlen (result));
753 my_asprintf (char **result, const char *format, ...)
758 va_start (args, format);
759 ret = vasprintf (result, format, args);
767 test_function (my_asprintf);
773 test_function (asprintf);
777 main (int argc, char *argv[])