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. */
21 test_function (int (*my_sprintf) (char *, const char *, ...))
25 /* Test return value convention. */
30 memcpy (buf, "DEADBEEF", 8);
31 retval = my_sprintf (buf, "%d", 12345);
33 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
36 /* Test support of size specifiers as in C99. */
41 my_sprintf (result, "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
42 ASSERT (strcmp (result, "12345671 33") == 0);
43 ASSERT (retval == strlen (result));
49 my_sprintf (result, "%zu %d", (size_t) 12345672, 33, 44, 55);
50 ASSERT (strcmp (result, "12345672 33") == 0);
51 ASSERT (retval == strlen (result));
57 my_sprintf (result, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
58 ASSERT (strcmp (result, "12345673 33") == 0);
59 ASSERT (retval == strlen (result));
66 my_sprintf (result, "%Lg %d", (long double) 1.5, 33, 44, 55);
67 ASSERT (strcmp (result, "1.5 33") == 0);
68 ASSERT (retval == strlen (result));
72 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
73 output of floating-point numbers. */
75 { /* A positive number. */
78 my_sprintf (result, "%a %d", 3.1416015625, 33, 44, 55);
79 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
80 || strcmp (result, "0x3.244p+0 33") == 0
81 || strcmp (result, "0x6.488p-1 33") == 0
82 || strcmp (result, "0xc.91p-2 33") == 0);
83 ASSERT (retval == strlen (result));
86 { /* A negative number. */
89 my_sprintf (result, "%A %d", -3.1416015625, 33, 44, 55);
90 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
91 || strcmp (result, "-0X3.244P+0 33") == 0
92 || strcmp (result, "-0X6.488P-1 33") == 0
93 || strcmp (result, "-0XC.91P-2 33") == 0);
94 ASSERT (retval == strlen (result));
97 { /* Positive zero. */
100 my_sprintf (result, "%a %d", 0.0, 33, 44, 55);
101 ASSERT (strcmp (result, "0x0p+0 33") == 0);
102 ASSERT (retval == strlen (result));
105 { /* Negative zero. */
108 my_sprintf (result, "%a %d", -0.0, 33, 44, 55);
109 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
110 ASSERT (retval == strlen (result));
113 { /* Positive infinity. */
116 my_sprintf (result, "%a %d", 1.0 / 0.0, 33, 44, 55);
117 ASSERT (strcmp (result, "inf 33") == 0);
118 ASSERT (retval == strlen (result));
121 { /* Negative infinity. */
124 my_sprintf (result, "%a %d", -1.0 / 0.0, 33, 44, 55);
125 ASSERT (strcmp (result, "-inf 33") == 0);
126 ASSERT (retval == strlen (result));
132 my_sprintf (result, "%a %d", 0.0 / 0.0, 33, 44, 55);
133 ASSERT (strcmp (result, "nan 33") == 0);
134 ASSERT (retval == strlen (result));
137 { /* Rounding near the decimal point. */
140 my_sprintf (result, "%.0a %d", 1.5, 33, 44, 55);
141 ASSERT (strcmp (result, "0x2p+0 33") == 0
142 || strcmp (result, "0x3p-1 33") == 0
143 || strcmp (result, "0x6p-2 33") == 0
144 || strcmp (result, "0xcp-3 33") == 0);
145 ASSERT (retval == strlen (result));
148 { /* Rounding with precision 0. */
151 my_sprintf (result, "%.0a %d", 1.51, 33, 44, 55);
152 ASSERT (strcmp (result, "0x2p+0 33") == 0
153 || strcmp (result, "0x3p-1 33") == 0
154 || strcmp (result, "0x6p-2 33") == 0
155 || strcmp (result, "0xcp-3 33") == 0);
156 ASSERT (retval == strlen (result));
159 { /* Rounding with precision 1. */
162 my_sprintf (result, "%.1a %d", 1.51, 33, 44, 55);
163 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
164 || strcmp (result, "0x3.0p-1 33") == 0
165 || strcmp (result, "0x6.1p-2 33") == 0
166 || strcmp (result, "0xc.1p-3 33") == 0);
167 ASSERT (retval == strlen (result));
170 { /* Rounding with precision 2. */
173 my_sprintf (result, "%.2a %d", 1.51, 33, 44, 55);
174 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
175 || strcmp (result, "0x3.05p-1 33") == 0
176 || strcmp (result, "0x6.0ap-2 33") == 0
177 || strcmp (result, "0xc.14p-3 33") == 0);
178 ASSERT (retval == strlen (result));
181 { /* Rounding with precision 3. */
184 my_sprintf (result, "%.3a %d", 1.51, 33, 44, 55);
185 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
186 || strcmp (result, "0x3.052p-1 33") == 0
187 || strcmp (result, "0x6.0a4p-2 33") == 0
188 || strcmp (result, "0xc.148p-3 33") == 0);
189 ASSERT (retval == strlen (result));
192 { /* Rounding can turn a ...FFF into a ...000. */
195 my_sprintf (result, "%.3a %d", 1.49999, 33, 44, 55);
196 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
197 || strcmp (result, "0x3.000p-1 33") == 0
198 || strcmp (result, "0x6.000p-2 33") == 0
199 || strcmp (result, "0xc.000p-3 33") == 0);
200 ASSERT (retval == strlen (result));
203 { /* Rounding can turn a ...FFF into a ...000.
204 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
207 my_sprintf (result, "%.1a %d", 1.999, 33, 44, 55);
208 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
209 || strcmp (result, "0x2.0p+0 33") == 0
210 || strcmp (result, "0x4.0p-1 33") == 0
211 || strcmp (result, "0x8.0p-2 33") == 0);
212 ASSERT (retval == strlen (result));
218 my_sprintf (result, "%10a %d", 1.75, 33, 44, 55);
219 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
220 || strcmp (result, " 0x3.8p-1 33") == 0
221 || strcmp (result, " 0x7p-2 33") == 0
222 || strcmp (result, " 0xep-3 33") == 0);
223 ASSERT (retval == strlen (result));
226 { /* Small precision. */
229 my_sprintf (result, "%.10a %d", 1.75, 33, 44, 55);
230 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
231 || strcmp (result, "0x3.8000000000p-1 33") == 0
232 || strcmp (result, "0x7.0000000000p-2 33") == 0
233 || strcmp (result, "0xe.0000000000p-3 33") == 0);
234 ASSERT (retval == strlen (result));
237 { /* Large precision. */
240 my_sprintf (result, "%.50a %d", 1.75, 33, 44, 55);
241 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
242 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
243 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
244 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
245 ASSERT (retval == strlen (result));
251 my_sprintf (result, "%-10a %d", 1.75, 33, 44, 55);
252 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
253 || strcmp (result, "0x3.8p-1 33") == 0
254 || strcmp (result, "0x7p-2 33") == 0
255 || strcmp (result, "0xep-3 33") == 0);
256 ASSERT (retval == strlen (result));
259 { /* FLAG_SHOWSIGN. */
262 my_sprintf (result, "%+a %d", 1.75, 33, 44, 55);
263 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
264 || strcmp (result, "+0x3.8p-1 33") == 0
265 || strcmp (result, "+0x7p-2 33") == 0
266 || strcmp (result, "+0xep-3 33") == 0);
267 ASSERT (retval == strlen (result));
273 my_sprintf (result, "% a %d", 1.75, 33, 44, 55);
274 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
275 || strcmp (result, " 0x3.8p-1 33") == 0
276 || strcmp (result, " 0x7p-2 33") == 0
277 || strcmp (result, " 0xep-3 33") == 0);
278 ASSERT (retval == strlen (result));
284 my_sprintf (result, "%#a %d", 1.75, 33, 44, 55);
285 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
286 || strcmp (result, "0x3.8p-1 33") == 0
287 || strcmp (result, "0x7.p-2 33") == 0
288 || strcmp (result, "0xe.p-3 33") == 0);
289 ASSERT (retval == strlen (result));
295 my_sprintf (result, "%#a %d", 1.0, 33, 44, 55);
296 ASSERT (strcmp (result, "0x1.p+0 33") == 0
297 || strcmp (result, "0x2.p-1 33") == 0
298 || strcmp (result, "0x4.p-2 33") == 0
299 || strcmp (result, "0x8.p-3 33") == 0);
300 ASSERT (retval == strlen (result));
303 { /* FLAG_ZERO with finite number. */
306 my_sprintf (result, "%010a %d", 1.75, 33, 44, 55);
307 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
308 || strcmp (result, "0x003.8p-1 33") == 0
309 || strcmp (result, "0x00007p-2 33") == 0
310 || strcmp (result, "0x0000ep-3 33") == 0);
311 ASSERT (retval == strlen (result));
314 { /* FLAG_ZERO with infinite number. */
317 my_sprintf (result, "%010a %d", 1.0 / 0.0, 33, 44, 55);
318 ASSERT (strcmp (result, " inf 33") == 0);
319 ASSERT (retval == strlen (result));
322 { /* FLAG_ZERO with NaN. */
325 my_sprintf (result, "%010a %d", 0.0 / 0.0, 33, 44, 55);
326 ASSERT (strcmp (result, " nan 33") == 0);
327 ASSERT (retval == strlen (result));
332 { /* A positive number. */
335 my_sprintf (result, "%La %d", 3.1416015625L, 33, 44, 55);
336 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
337 || strcmp (result, "0x3.244p+0 33") == 0
338 || strcmp (result, "0x6.488p-1 33") == 0
339 || strcmp (result, "0xc.91p-2 33") == 0);
340 ASSERT (retval == strlen (result));
343 { /* A negative number. */
346 my_sprintf (result, "%LA %d", -3.1416015625L, 33, 44, 55);
347 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
348 || strcmp (result, "-0X3.244P+0 33") == 0
349 || strcmp (result, "-0X6.488P-1 33") == 0
350 || strcmp (result, "-0XC.91P-2 33") == 0);
351 ASSERT (retval == strlen (result));
354 { /* Positive zero. */
357 my_sprintf (result, "%La %d", 0.0L, 33, 44, 55);
358 ASSERT (strcmp (result, "0x0p+0 33") == 0);
359 ASSERT (retval == strlen (result));
362 { /* Negative zero. */
365 my_sprintf (result, "%La %d", -0.0L, 33, 44, 55);
366 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
367 ASSERT (retval == strlen (result));
370 { /* Positive infinity. */
373 my_sprintf (result, "%La %d", 1.0L / 0.0L, 33, 44, 55);
374 ASSERT (strcmp (result, "inf 33") == 0);
375 ASSERT (retval == strlen (result));
378 { /* Negative infinity. */
381 my_sprintf (result, "%La %d", -1.0L / 0.0L, 33, 44, 55);
382 ASSERT (strcmp (result, "-inf 33") == 0);
383 ASSERT (retval == strlen (result));
389 my_sprintf (result, "%La %d", 0.0L / 0.0L, 33, 44, 55);
390 ASSERT (strcmp (result, "nan 33") == 0);
391 ASSERT (retval == strlen (result));
394 { /* Rounding near the decimal point. */
397 my_sprintf (result, "%.0La %d", 1.5L, 33, 44, 55);
398 ASSERT (strcmp (result, "0x2p+0 33") == 0
399 || strcmp (result, "0x3p-1 33") == 0
400 || strcmp (result, "0x6p-2 33") == 0
401 || strcmp (result, "0xcp-3 33") == 0);
402 ASSERT (retval == strlen (result));
405 { /* Rounding with precision 0. */
408 my_sprintf (result, "%.0La %d", 1.51L, 33, 44, 55);
409 ASSERT (strcmp (result, "0x2p+0 33") == 0
410 || strcmp (result, "0x3p-1 33") == 0
411 || strcmp (result, "0x6p-2 33") == 0
412 || strcmp (result, "0xcp-3 33") == 0);
413 ASSERT (retval == strlen (result));
416 { /* Rounding with precision 1. */
419 my_sprintf (result, "%.1La %d", 1.51L, 33, 44, 55);
420 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
421 || strcmp (result, "0x3.0p-1 33") == 0
422 || strcmp (result, "0x6.1p-2 33") == 0
423 || strcmp (result, "0xc.1p-3 33") == 0);
424 ASSERT (retval == strlen (result));
427 { /* Rounding with precision 2. */
430 my_sprintf (result, "%.2La %d", 1.51L, 33, 44, 55);
431 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
432 || strcmp (result, "0x3.05p-1 33") == 0
433 || strcmp (result, "0x6.0ap-2 33") == 0
434 || strcmp (result, "0xc.14p-3 33") == 0);
435 ASSERT (retval == strlen (result));
438 { /* Rounding with precision 3. */
441 my_sprintf (result, "%.3La %d", 1.51L, 33, 44, 55);
442 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
443 || strcmp (result, "0x3.052p-1 33") == 0
444 || strcmp (result, "0x6.0a4p-2 33") == 0
445 || strcmp (result, "0xc.148p-3 33") == 0);
446 ASSERT (retval == strlen (result));
449 { /* Rounding can turn a ...FFF into a ...000. */
452 my_sprintf (result, "%.3La %d", 1.49999L, 33, 44, 55);
453 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
454 || strcmp (result, "0x3.000p-1 33") == 0
455 || strcmp (result, "0x6.000p-2 33") == 0
456 || strcmp (result, "0xc.000p-3 33") == 0);
457 ASSERT (retval == strlen (result));
460 { /* Rounding can turn a ...FFF into a ...000.
461 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
462 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
465 my_sprintf (result, "%.1La %d", 1.999L, 33, 44, 55);
466 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
467 || strcmp (result, "0x2.0p+0 33") == 0
468 || strcmp (result, "0x4.0p-1 33") == 0
469 || strcmp (result, "0x8.0p-2 33") == 0);
470 ASSERT (retval == strlen (result));
476 my_sprintf (result, "%10La %d", 1.75L, 33, 44, 55);
477 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
478 || strcmp (result, " 0x3.8p-1 33") == 0
479 || strcmp (result, " 0x7p-2 33") == 0
480 || strcmp (result, " 0xep-3 33") == 0);
481 ASSERT (retval == strlen (result));
484 { /* Small precision. */
487 my_sprintf (result, "%.10La %d", 1.75L, 33, 44, 55);
488 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
489 || strcmp (result, "0x3.8000000000p-1 33") == 0
490 || strcmp (result, "0x7.0000000000p-2 33") == 0
491 || strcmp (result, "0xe.0000000000p-3 33") == 0);
492 ASSERT (retval == strlen (result));
495 { /* Large precision. */
498 my_sprintf (result, "%.50La %d", 1.75L, 33, 44, 55);
499 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
500 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
501 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
502 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
503 ASSERT (retval == strlen (result));
509 my_sprintf (result, "%-10La %d", 1.75L, 33, 44, 55);
510 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
511 || strcmp (result, "0x3.8p-1 33") == 0
512 || strcmp (result, "0x7p-2 33") == 0
513 || strcmp (result, "0xep-3 33") == 0);
514 ASSERT (retval == strlen (result));
517 { /* FLAG_SHOWSIGN. */
520 my_sprintf (result, "%+La %d", 1.75L, 33, 44, 55);
521 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
522 || strcmp (result, "+0x3.8p-1 33") == 0
523 || strcmp (result, "+0x7p-2 33") == 0
524 || strcmp (result, "+0xep-3 33") == 0);
525 ASSERT (retval == strlen (result));
531 my_sprintf (result, "% La %d", 1.75L, 33, 44, 55);
532 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
533 || strcmp (result, " 0x3.8p-1 33") == 0
534 || strcmp (result, " 0x7p-2 33") == 0
535 || strcmp (result, " 0xep-3 33") == 0);
536 ASSERT (retval == strlen (result));
542 my_sprintf (result, "%#La %d", 1.75L, 33, 44, 55);
543 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
544 || strcmp (result, "0x3.8p-1 33") == 0
545 || strcmp (result, "0x7.p-2 33") == 0
546 || strcmp (result, "0xe.p-3 33") == 0);
547 ASSERT (retval == strlen (result));
553 my_sprintf (result, "%#La %d", 1.0L, 33, 44, 55);
554 ASSERT (strcmp (result, "0x1.p+0 33") == 0
555 || strcmp (result, "0x2.p-1 33") == 0
556 || strcmp (result, "0x4.p-2 33") == 0
557 || strcmp (result, "0x8.p-3 33") == 0);
558 ASSERT (retval == strlen (result));
561 { /* FLAG_ZERO with finite number. */
564 my_sprintf (result, "%010La %d", 1.75L, 33, 44, 55);
565 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
566 || strcmp (result, "0x003.8p-1 33") == 0
567 || strcmp (result, "0x00007p-2 33") == 0
568 || strcmp (result, "0x0000ep-3 33") == 0);
569 ASSERT (retval == strlen (result));
572 { /* FLAG_ZERO with infinite number. */
575 my_sprintf (result, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
576 ASSERT (strcmp (result, " inf 33") == 0);
577 ASSERT (retval == strlen (result));
580 { /* FLAG_ZERO with NaN. */
583 my_sprintf (result, "%010La %d", 0.0L / 0.0L, 33, 44, 55);
584 ASSERT (strcmp (result, " nan 33") == 0);
585 ASSERT (retval == strlen (result));
590 /* Test the support of the %n format directive. */
596 my_sprintf (result, "%d %n", 123, &count, 33, 44, 55);
597 ASSERT (strcmp (result, "123 ") == 0);
598 ASSERT (retval == strlen (result));
602 /* Test the support of the POSIX/XSI format strings with positions. */
607 my_sprintf (result, "%2$d %1$d", 33, 55);
608 ASSERT (strcmp (result, "55 33") == 0);
609 ASSERT (retval == strlen (result));