1 /* Test of POSIX compatible vsprintf() and sprintf() 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. */
20 /* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */
25 static double zero = 0.0;
29 # define NaN() (0.0 / 0.0)
33 test_function (int (*my_sprintf) (char *, const char *, ...))
37 /* Test return value convention. */
42 memcpy (buf, "DEADBEEF", 8);
43 retval = my_sprintf (buf, "%d", 12345);
45 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
48 /* Test support of size specifiers as in C99. */
53 my_sprintf (result, "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
54 ASSERT (strcmp (result, "12345671 33") == 0);
55 ASSERT (retval == strlen (result));
61 my_sprintf (result, "%zu %d", (size_t) 12345672, 33, 44, 55);
62 ASSERT (strcmp (result, "12345672 33") == 0);
63 ASSERT (retval == strlen (result));
69 my_sprintf (result, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
70 ASSERT (strcmp (result, "12345673 33") == 0);
71 ASSERT (retval == strlen (result));
78 my_sprintf (result, "%Lg %d", (long double) 1.5, 33, 44, 55);
79 ASSERT (strcmp (result, "1.5 33") == 0);
80 ASSERT (retval == strlen (result));
84 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
85 output of floating-point numbers. */
87 { /* A positive number. */
90 my_sprintf (result, "%a %d", 3.1416015625, 33, 44, 55);
91 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
92 || strcmp (result, "0x3.244p+0 33") == 0
93 || strcmp (result, "0x6.488p-1 33") == 0
94 || strcmp (result, "0xc.91p-2 33") == 0);
95 ASSERT (retval == strlen (result));
98 { /* A negative number. */
101 my_sprintf (result, "%A %d", -3.1416015625, 33, 44, 55);
102 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
103 || strcmp (result, "-0X3.244P+0 33") == 0
104 || strcmp (result, "-0X6.488P-1 33") == 0
105 || strcmp (result, "-0XC.91P-2 33") == 0);
106 ASSERT (retval == strlen (result));
109 { /* Positive zero. */
112 my_sprintf (result, "%a %d", 0.0, 33, 44, 55);
113 ASSERT (strcmp (result, "0x0p+0 33") == 0);
114 ASSERT (retval == strlen (result));
117 { /* Negative zero. */
120 my_sprintf (result, "%a %d", -0.0, 33, 44, 55);
121 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
122 ASSERT (retval == strlen (result));
125 { /* Positive infinity. */
128 my_sprintf (result, "%a %d", 1.0 / 0.0, 33, 44, 55);
129 ASSERT (strcmp (result, "inf 33") == 0);
130 ASSERT (retval == strlen (result));
133 { /* Negative infinity. */
136 my_sprintf (result, "%a %d", -1.0 / 0.0, 33, 44, 55);
137 ASSERT (strcmp (result, "-inf 33") == 0);
138 ASSERT (retval == strlen (result));
144 my_sprintf (result, "%a %d", NaN (), 33, 44, 55);
145 ASSERT (strcmp (result, "nan 33") == 0);
146 ASSERT (retval == strlen (result));
149 { /* Rounding near the decimal point. */
152 my_sprintf (result, "%.0a %d", 1.5, 33, 44, 55);
153 ASSERT (strcmp (result, "0x2p+0 33") == 0
154 || strcmp (result, "0x3p-1 33") == 0
155 || strcmp (result, "0x6p-2 33") == 0
156 || strcmp (result, "0xcp-3 33") == 0);
157 ASSERT (retval == strlen (result));
160 { /* Rounding with precision 0. */
163 my_sprintf (result, "%.0a %d", 1.51, 33, 44, 55);
164 ASSERT (strcmp (result, "0x2p+0 33") == 0
165 || strcmp (result, "0x3p-1 33") == 0
166 || strcmp (result, "0x6p-2 33") == 0
167 || strcmp (result, "0xcp-3 33") == 0);
168 ASSERT (retval == strlen (result));
171 { /* Rounding with precision 1. */
174 my_sprintf (result, "%.1a %d", 1.51, 33, 44, 55);
175 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
176 || strcmp (result, "0x3.0p-1 33") == 0
177 || strcmp (result, "0x6.1p-2 33") == 0
178 || strcmp (result, "0xc.1p-3 33") == 0);
179 ASSERT (retval == strlen (result));
182 { /* Rounding with precision 2. */
185 my_sprintf (result, "%.2a %d", 1.51, 33, 44, 55);
186 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
187 || strcmp (result, "0x3.05p-1 33") == 0
188 || strcmp (result, "0x6.0ap-2 33") == 0
189 || strcmp (result, "0xc.14p-3 33") == 0);
190 ASSERT (retval == strlen (result));
193 { /* Rounding with precision 3. */
196 my_sprintf (result, "%.3a %d", 1.51, 33, 44, 55);
197 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
198 || strcmp (result, "0x3.052p-1 33") == 0
199 || strcmp (result, "0x6.0a4p-2 33") == 0
200 || strcmp (result, "0xc.148p-3 33") == 0);
201 ASSERT (retval == strlen (result));
204 { /* Rounding can turn a ...FFF into a ...000. */
207 my_sprintf (result, "%.3a %d", 1.49999, 33, 44, 55);
208 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
209 || strcmp (result, "0x3.000p-1 33") == 0
210 || strcmp (result, "0x6.000p-2 33") == 0
211 || strcmp (result, "0xc.000p-3 33") == 0);
212 ASSERT (retval == strlen (result));
215 { /* Rounding can turn a ...FFF into a ...000.
216 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
219 my_sprintf (result, "%.1a %d", 1.999, 33, 44, 55);
220 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
221 || strcmp (result, "0x2.0p+0 33") == 0
222 || strcmp (result, "0x4.0p-1 33") == 0
223 || strcmp (result, "0x8.0p-2 33") == 0);
224 ASSERT (retval == strlen (result));
230 my_sprintf (result, "%10a %d", 1.75, 33, 44, 55);
231 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
232 || strcmp (result, " 0x3.8p-1 33") == 0
233 || strcmp (result, " 0x7p-2 33") == 0
234 || strcmp (result, " 0xep-3 33") == 0);
235 ASSERT (retval == strlen (result));
238 { /* Small precision. */
241 my_sprintf (result, "%.10a %d", 1.75, 33, 44, 55);
242 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
243 || strcmp (result, "0x3.8000000000p-1 33") == 0
244 || strcmp (result, "0x7.0000000000p-2 33") == 0
245 || strcmp (result, "0xe.0000000000p-3 33") == 0);
246 ASSERT (retval == strlen (result));
249 { /* Large precision. */
252 my_sprintf (result, "%.50a %d", 1.75, 33, 44, 55);
253 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
254 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
255 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
256 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
257 ASSERT (retval == strlen (result));
263 my_sprintf (result, "%-10a %d", 1.75, 33, 44, 55);
264 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
265 || strcmp (result, "0x3.8p-1 33") == 0
266 || strcmp (result, "0x7p-2 33") == 0
267 || strcmp (result, "0xep-3 33") == 0);
268 ASSERT (retval == strlen (result));
271 { /* FLAG_SHOWSIGN. */
274 my_sprintf (result, "%+a %d", 1.75, 33, 44, 55);
275 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
276 || strcmp (result, "+0x3.8p-1 33") == 0
277 || strcmp (result, "+0x7p-2 33") == 0
278 || strcmp (result, "+0xep-3 33") == 0);
279 ASSERT (retval == strlen (result));
285 my_sprintf (result, "% a %d", 1.75, 33, 44, 55);
286 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
287 || strcmp (result, " 0x3.8p-1 33") == 0
288 || strcmp (result, " 0x7p-2 33") == 0
289 || strcmp (result, " 0xep-3 33") == 0);
290 ASSERT (retval == strlen (result));
296 my_sprintf (result, "%#a %d", 1.75, 33, 44, 55);
297 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
298 || strcmp (result, "0x3.8p-1 33") == 0
299 || strcmp (result, "0x7.p-2 33") == 0
300 || strcmp (result, "0xe.p-3 33") == 0);
301 ASSERT (retval == strlen (result));
307 my_sprintf (result, "%#a %d", 1.0, 33, 44, 55);
308 ASSERT (strcmp (result, "0x1.p+0 33") == 0
309 || strcmp (result, "0x2.p-1 33") == 0
310 || strcmp (result, "0x4.p-2 33") == 0
311 || strcmp (result, "0x8.p-3 33") == 0);
312 ASSERT (retval == strlen (result));
315 { /* FLAG_ZERO with finite number. */
318 my_sprintf (result, "%010a %d", 1.75, 33, 44, 55);
319 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
320 || strcmp (result, "0x003.8p-1 33") == 0
321 || strcmp (result, "0x00007p-2 33") == 0
322 || strcmp (result, "0x0000ep-3 33") == 0);
323 ASSERT (retval == strlen (result));
326 { /* FLAG_ZERO with infinite number. */
329 my_sprintf (result, "%010a %d", 1.0 / 0.0, 33, 44, 55);
330 ASSERT (strcmp (result, " inf 33") == 0
331 || strcmp (result, "0000000inf 33") == 0);
332 ASSERT (retval == strlen (result));
335 { /* FLAG_ZERO with NaN. */
338 my_sprintf (result, "%010a %d", NaN (), 33, 44, 55);
339 ASSERT (strcmp (result, " nan 33") == 0
340 || strcmp (result, "0000000nan 33") == 0);
341 ASSERT (retval == strlen (result));
346 { /* A positive number. */
349 my_sprintf (result, "%La %d", 3.1416015625L, 33, 44, 55);
350 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
351 || strcmp (result, "0x3.244p+0 33") == 0
352 || strcmp (result, "0x6.488p-1 33") == 0
353 || strcmp (result, "0xc.91p-2 33") == 0);
354 ASSERT (retval == strlen (result));
357 { /* A negative number. */
360 my_sprintf (result, "%LA %d", -3.1416015625L, 33, 44, 55);
361 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
362 || strcmp (result, "-0X3.244P+0 33") == 0
363 || strcmp (result, "-0X6.488P-1 33") == 0
364 || strcmp (result, "-0XC.91P-2 33") == 0);
365 ASSERT (retval == strlen (result));
368 { /* Positive zero. */
371 my_sprintf (result, "%La %d", 0.0L, 33, 44, 55);
372 ASSERT (strcmp (result, "0x0p+0 33") == 0);
373 ASSERT (retval == strlen (result));
376 { /* Negative zero. */
379 my_sprintf (result, "%La %d", -0.0L, 33, 44, 55);
380 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
381 ASSERT (retval == strlen (result));
384 { /* Positive infinity. */
387 my_sprintf (result, "%La %d", 1.0L / 0.0L, 33, 44, 55);
388 ASSERT (strcmp (result, "inf 33") == 0);
389 ASSERT (retval == strlen (result));
392 { /* Negative infinity. */
395 my_sprintf (result, "%La %d", -1.0L / 0.0L, 33, 44, 55);
396 ASSERT (strcmp (result, "-inf 33") == 0);
397 ASSERT (retval == strlen (result));
403 my_sprintf (result, "%La %d", 0.0L / 0.0L, 33, 44, 55);
404 ASSERT (strcmp (result, "nan 33") == 0);
405 ASSERT (retval == strlen (result));
408 { /* Rounding near the decimal point. */
411 my_sprintf (result, "%.0La %d", 1.5L, 33, 44, 55);
412 ASSERT (strcmp (result, "0x2p+0 33") == 0
413 || strcmp (result, "0x3p-1 33") == 0
414 || strcmp (result, "0x6p-2 33") == 0
415 || strcmp (result, "0xcp-3 33") == 0);
416 ASSERT (retval == strlen (result));
419 { /* Rounding with precision 0. */
422 my_sprintf (result, "%.0La %d", 1.51L, 33, 44, 55);
423 ASSERT (strcmp (result, "0x2p+0 33") == 0
424 || strcmp (result, "0x3p-1 33") == 0
425 || strcmp (result, "0x6p-2 33") == 0
426 || strcmp (result, "0xcp-3 33") == 0);
427 ASSERT (retval == strlen (result));
430 { /* Rounding with precision 1. */
433 my_sprintf (result, "%.1La %d", 1.51L, 33, 44, 55);
434 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
435 || strcmp (result, "0x3.0p-1 33") == 0
436 || strcmp (result, "0x6.1p-2 33") == 0
437 || strcmp (result, "0xc.1p-3 33") == 0);
438 ASSERT (retval == strlen (result));
441 { /* Rounding with precision 2. */
444 my_sprintf (result, "%.2La %d", 1.51L, 33, 44, 55);
445 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
446 || strcmp (result, "0x3.05p-1 33") == 0
447 || strcmp (result, "0x6.0ap-2 33") == 0
448 || strcmp (result, "0xc.14p-3 33") == 0);
449 ASSERT (retval == strlen (result));
452 { /* Rounding with precision 3. */
455 my_sprintf (result, "%.3La %d", 1.51L, 33, 44, 55);
456 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
457 || strcmp (result, "0x3.052p-1 33") == 0
458 || strcmp (result, "0x6.0a4p-2 33") == 0
459 || strcmp (result, "0xc.148p-3 33") == 0);
460 ASSERT (retval == strlen (result));
463 { /* Rounding can turn a ...FFF into a ...000. */
466 my_sprintf (result, "%.3La %d", 1.49999L, 33, 44, 55);
467 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
468 || strcmp (result, "0x3.000p-1 33") == 0
469 || strcmp (result, "0x6.000p-2 33") == 0
470 || strcmp (result, "0xc.000p-3 33") == 0);
471 ASSERT (retval == strlen (result));
474 { /* Rounding can turn a ...FFF into a ...000.
475 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
476 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
479 my_sprintf (result, "%.1La %d", 1.999L, 33, 44, 55);
480 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
481 || strcmp (result, "0x2.0p+0 33") == 0
482 || strcmp (result, "0x4.0p-1 33") == 0
483 || strcmp (result, "0x8.0p-2 33") == 0);
484 ASSERT (retval == strlen (result));
490 my_sprintf (result, "%10La %d", 1.75L, 33, 44, 55);
491 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
492 || strcmp (result, " 0x3.8p-1 33") == 0
493 || strcmp (result, " 0x7p-2 33") == 0
494 || strcmp (result, " 0xep-3 33") == 0);
495 ASSERT (retval == strlen (result));
498 { /* Small precision. */
501 my_sprintf (result, "%.10La %d", 1.75L, 33, 44, 55);
502 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
503 || strcmp (result, "0x3.8000000000p-1 33") == 0
504 || strcmp (result, "0x7.0000000000p-2 33") == 0
505 || strcmp (result, "0xe.0000000000p-3 33") == 0);
506 ASSERT (retval == strlen (result));
509 { /* Large precision. */
512 my_sprintf (result, "%.50La %d", 1.75L, 33, 44, 55);
513 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
514 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
515 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
516 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
517 ASSERT (retval == strlen (result));
523 my_sprintf (result, "%-10La %d", 1.75L, 33, 44, 55);
524 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
525 || strcmp (result, "0x3.8p-1 33") == 0
526 || strcmp (result, "0x7p-2 33") == 0
527 || strcmp (result, "0xep-3 33") == 0);
528 ASSERT (retval == strlen (result));
531 { /* FLAG_SHOWSIGN. */
534 my_sprintf (result, "%+La %d", 1.75L, 33, 44, 55);
535 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
536 || strcmp (result, "+0x3.8p-1 33") == 0
537 || strcmp (result, "+0x7p-2 33") == 0
538 || strcmp (result, "+0xep-3 33") == 0);
539 ASSERT (retval == strlen (result));
545 my_sprintf (result, "% La %d", 1.75L, 33, 44, 55);
546 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
547 || strcmp (result, " 0x3.8p-1 33") == 0
548 || strcmp (result, " 0x7p-2 33") == 0
549 || strcmp (result, " 0xep-3 33") == 0);
550 ASSERT (retval == strlen (result));
556 my_sprintf (result, "%#La %d", 1.75L, 33, 44, 55);
557 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
558 || strcmp (result, "0x3.8p-1 33") == 0
559 || strcmp (result, "0x7.p-2 33") == 0
560 || strcmp (result, "0xe.p-3 33") == 0);
561 ASSERT (retval == strlen (result));
567 my_sprintf (result, "%#La %d", 1.0L, 33, 44, 55);
568 ASSERT (strcmp (result, "0x1.p+0 33") == 0
569 || strcmp (result, "0x2.p-1 33") == 0
570 || strcmp (result, "0x4.p-2 33") == 0
571 || strcmp (result, "0x8.p-3 33") == 0);
572 ASSERT (retval == strlen (result));
575 { /* FLAG_ZERO with finite number. */
578 my_sprintf (result, "%010La %d", 1.75L, 33, 44, 55);
579 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
580 || strcmp (result, "0x003.8p-1 33") == 0
581 || strcmp (result, "0x00007p-2 33") == 0
582 || strcmp (result, "0x0000ep-3 33") == 0);
583 ASSERT (retval == strlen (result));
586 { /* FLAG_ZERO with infinite number. */
589 my_sprintf (result, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
590 ASSERT (strcmp (result, " inf 33") == 0
591 || strcmp (result, "0000000inf 33") == 0);
592 ASSERT (retval == strlen (result));
595 { /* FLAG_ZERO with NaN. */
598 my_sprintf (result, "%010La %d", 0.0L / 0.0L, 33, 44, 55);
599 ASSERT (strcmp (result, " nan 33") == 0
600 || strcmp (result, "0000000nan 33") == 0);
601 ASSERT (retval == strlen (result));
606 /* Test the support of the %n format directive. */
612 my_sprintf (result, "%d %n", 123, &count, 33, 44, 55);
613 ASSERT (strcmp (result, "123 ") == 0);
614 ASSERT (retval == strlen (result));
618 /* Test the support of the POSIX/XSI format strings with positions. */
623 my_sprintf (result, "%2$d %1$d", 33, 55);
624 ASSERT (strcmp (result, "55 33") == 0);
625 ASSERT (retval == strlen (result));