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));
77 my_sprintf (result, "%Lg %d", (long double) 1.5, 33, 44, 55);
78 ASSERT (strcmp (result, "1.5 33") == 0);
79 ASSERT (retval == strlen (result));
82 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
83 output of floating-point numbers. */
85 { /* A positive number. */
88 my_sprintf (result, "%a %d", 3.1416015625, 33, 44, 55);
89 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
90 || strcmp (result, "0x3.244p+0 33") == 0
91 || strcmp (result, "0x6.488p-1 33") == 0
92 || strcmp (result, "0xc.91p-2 33") == 0);
93 ASSERT (retval == strlen (result));
96 { /* A negative number. */
99 my_sprintf (result, "%A %d", -3.1416015625, 33, 44, 55);
100 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
101 || strcmp (result, "-0X3.244P+0 33") == 0
102 || strcmp (result, "-0X6.488P-1 33") == 0
103 || strcmp (result, "-0XC.91P-2 33") == 0);
104 ASSERT (retval == strlen (result));
107 { /* Positive zero. */
110 my_sprintf (result, "%a %d", 0.0, 33, 44, 55);
111 ASSERT (strcmp (result, "0x0p+0 33") == 0);
112 ASSERT (retval == strlen (result));
115 { /* Negative zero. */
118 my_sprintf (result, "%a %d", -0.0, 33, 44, 55);
119 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
120 ASSERT (retval == strlen (result));
123 { /* Positive infinity. */
126 my_sprintf (result, "%a %d", 1.0 / 0.0, 33, 44, 55);
127 ASSERT (strcmp (result, "inf 33") == 0);
128 ASSERT (retval == strlen (result));
131 { /* Negative infinity. */
134 my_sprintf (result, "%a %d", -1.0 / 0.0, 33, 44, 55);
135 ASSERT (strcmp (result, "-inf 33") == 0);
136 ASSERT (retval == strlen (result));
142 my_sprintf (result, "%a %d", NaN (), 33, 44, 55);
143 ASSERT (strcmp (result, "nan 33") == 0);
144 ASSERT (retval == strlen (result));
147 { /* Rounding near the decimal point. */
150 my_sprintf (result, "%.0a %d", 1.5, 33, 44, 55);
151 ASSERT (strcmp (result, "0x2p+0 33") == 0
152 || strcmp (result, "0x3p-1 33") == 0
153 || strcmp (result, "0x6p-2 33") == 0
154 || strcmp (result, "0xcp-3 33") == 0);
155 ASSERT (retval == strlen (result));
158 { /* Rounding with precision 0. */
161 my_sprintf (result, "%.0a %d", 1.51, 33, 44, 55);
162 ASSERT (strcmp (result, "0x2p+0 33") == 0
163 || strcmp (result, "0x3p-1 33") == 0
164 || strcmp (result, "0x6p-2 33") == 0
165 || strcmp (result, "0xcp-3 33") == 0);
166 ASSERT (retval == strlen (result));
169 { /* Rounding with precision 1. */
172 my_sprintf (result, "%.1a %d", 1.51, 33, 44, 55);
173 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
174 || strcmp (result, "0x3.0p-1 33") == 0
175 || strcmp (result, "0x6.1p-2 33") == 0
176 || strcmp (result, "0xc.1p-3 33") == 0);
177 ASSERT (retval == strlen (result));
180 { /* Rounding with precision 2. */
183 my_sprintf (result, "%.2a %d", 1.51, 33, 44, 55);
184 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
185 || strcmp (result, "0x3.05p-1 33") == 0
186 || strcmp (result, "0x6.0ap-2 33") == 0
187 || strcmp (result, "0xc.14p-3 33") == 0);
188 ASSERT (retval == strlen (result));
191 { /* Rounding with precision 3. */
194 my_sprintf (result, "%.3a %d", 1.51, 33, 44, 55);
195 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
196 || strcmp (result, "0x3.052p-1 33") == 0
197 || strcmp (result, "0x6.0a4p-2 33") == 0
198 || strcmp (result, "0xc.148p-3 33") == 0);
199 ASSERT (retval == strlen (result));
202 { /* Rounding can turn a ...FFF into a ...000. */
205 my_sprintf (result, "%.3a %d", 1.49999, 33, 44, 55);
206 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
207 || strcmp (result, "0x3.000p-1 33") == 0
208 || strcmp (result, "0x6.000p-2 33") == 0
209 || strcmp (result, "0xc.000p-3 33") == 0);
210 ASSERT (retval == strlen (result));
213 { /* Rounding can turn a ...FFF into a ...000.
214 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
217 my_sprintf (result, "%.1a %d", 1.999, 33, 44, 55);
218 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
219 || strcmp (result, "0x2.0p+0 33") == 0
220 || strcmp (result, "0x4.0p-1 33") == 0
221 || strcmp (result, "0x8.0p-2 33") == 0);
222 ASSERT (retval == strlen (result));
228 my_sprintf (result, "%10a %d", 1.75, 33, 44, 55);
229 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
230 || strcmp (result, " 0x3.8p-1 33") == 0
231 || strcmp (result, " 0x7p-2 33") == 0
232 || strcmp (result, " 0xep-3 33") == 0);
233 ASSERT (retval == strlen (result));
236 { /* Small precision. */
239 my_sprintf (result, "%.10a %d", 1.75, 33, 44, 55);
240 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
241 || strcmp (result, "0x3.8000000000p-1 33") == 0
242 || strcmp (result, "0x7.0000000000p-2 33") == 0
243 || strcmp (result, "0xe.0000000000p-3 33") == 0);
244 ASSERT (retval == strlen (result));
247 { /* Large precision. */
250 my_sprintf (result, "%.50a %d", 1.75, 33, 44, 55);
251 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
252 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
253 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
254 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
255 ASSERT (retval == strlen (result));
261 my_sprintf (result, "%-10a %d", 1.75, 33, 44, 55);
262 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
263 || strcmp (result, "0x3.8p-1 33") == 0
264 || strcmp (result, "0x7p-2 33") == 0
265 || strcmp (result, "0xep-3 33") == 0);
266 ASSERT (retval == strlen (result));
269 { /* FLAG_SHOWSIGN. */
272 my_sprintf (result, "%+a %d", 1.75, 33, 44, 55);
273 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
274 || strcmp (result, "+0x3.8p-1 33") == 0
275 || strcmp (result, "+0x7p-2 33") == 0
276 || strcmp (result, "+0xep-3 33") == 0);
277 ASSERT (retval == strlen (result));
283 my_sprintf (result, "% a %d", 1.75, 33, 44, 55);
284 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
285 || strcmp (result, " 0x3.8p-1 33") == 0
286 || strcmp (result, " 0x7p-2 33") == 0
287 || strcmp (result, " 0xep-3 33") == 0);
288 ASSERT (retval == strlen (result));
294 my_sprintf (result, "%#a %d", 1.75, 33, 44, 55);
295 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
296 || strcmp (result, "0x3.8p-1 33") == 0
297 || strcmp (result, "0x7.p-2 33") == 0
298 || strcmp (result, "0xe.p-3 33") == 0);
299 ASSERT (retval == strlen (result));
305 my_sprintf (result, "%#a %d", 1.0, 33, 44, 55);
306 ASSERT (strcmp (result, "0x1.p+0 33") == 0
307 || strcmp (result, "0x2.p-1 33") == 0
308 || strcmp (result, "0x4.p-2 33") == 0
309 || strcmp (result, "0x8.p-3 33") == 0);
310 ASSERT (retval == strlen (result));
313 { /* FLAG_ZERO with finite number. */
316 my_sprintf (result, "%010a %d", 1.75, 33, 44, 55);
317 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
318 || strcmp (result, "0x003.8p-1 33") == 0
319 || strcmp (result, "0x00007p-2 33") == 0
320 || strcmp (result, "0x0000ep-3 33") == 0);
321 ASSERT (retval == strlen (result));
324 { /* FLAG_ZERO with infinite number. */
327 my_sprintf (result, "%010a %d", 1.0 / 0.0, 33, 44, 55);
328 ASSERT (strcmp (result, " inf 33") == 0
329 || strcmp (result, "0000000inf 33") == 0);
330 ASSERT (retval == strlen (result));
333 { /* FLAG_ZERO with NaN. */
336 my_sprintf (result, "%010a %d", NaN (), 33, 44, 55);
337 ASSERT (strcmp (result, " nan 33") == 0
338 || strcmp (result, "0000000nan 33") == 0);
339 ASSERT (retval == strlen (result));
342 { /* A positive number. */
345 my_sprintf (result, "%La %d", 3.1416015625L, 33, 44, 55);
346 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
347 || strcmp (result, "0x3.244p+0 33") == 0
348 || strcmp (result, "0x6.488p-1 33") == 0
349 || strcmp (result, "0xc.91p-2 33") == 0);
350 ASSERT (retval == strlen (result));
353 { /* A negative number. */
356 my_sprintf (result, "%LA %d", -3.1416015625L, 33, 44, 55);
357 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
358 || strcmp (result, "-0X3.244P+0 33") == 0
359 || strcmp (result, "-0X6.488P-1 33") == 0
360 || strcmp (result, "-0XC.91P-2 33") == 0);
361 ASSERT (retval == strlen (result));
364 { /* Positive zero. */
367 my_sprintf (result, "%La %d", 0.0L, 33, 44, 55);
368 ASSERT (strcmp (result, "0x0p+0 33") == 0);
369 ASSERT (retval == strlen (result));
372 { /* Negative zero. */
375 my_sprintf (result, "%La %d", -0.0L, 33, 44, 55);
376 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
377 ASSERT (retval == strlen (result));
380 { /* Positive infinity. */
383 my_sprintf (result, "%La %d", 1.0L / 0.0L, 33, 44, 55);
384 ASSERT (strcmp (result, "inf 33") == 0);
385 ASSERT (retval == strlen (result));
388 { /* Negative infinity. */
391 my_sprintf (result, "%La %d", -1.0L / 0.0L, 33, 44, 55);
392 ASSERT (strcmp (result, "-inf 33") == 0);
393 ASSERT (retval == strlen (result));
399 my_sprintf (result, "%La %d", 0.0L / 0.0L, 33, 44, 55);
400 ASSERT (strcmp (result, "nan 33") == 0);
401 ASSERT (retval == strlen (result));
404 { /* Rounding near the decimal point. */
407 my_sprintf (result, "%.0La %d", 1.5L, 33, 44, 55);
408 ASSERT (strcmp (result, "0x2p+0 33") == 0
409 || strcmp (result, "0x3p-1 33") == 0
410 || strcmp (result, "0x6p-2 33") == 0
411 || strcmp (result, "0xcp-3 33") == 0);
412 ASSERT (retval == strlen (result));
415 { /* Rounding with precision 0. */
418 my_sprintf (result, "%.0La %d", 1.51L, 33, 44, 55);
419 ASSERT (strcmp (result, "0x2p+0 33") == 0
420 || strcmp (result, "0x3p-1 33") == 0
421 || strcmp (result, "0x6p-2 33") == 0
422 || strcmp (result, "0xcp-3 33") == 0);
423 ASSERT (retval == strlen (result));
426 { /* Rounding with precision 1. */
429 my_sprintf (result, "%.1La %d", 1.51L, 33, 44, 55);
430 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
431 || strcmp (result, "0x3.0p-1 33") == 0
432 || strcmp (result, "0x6.1p-2 33") == 0
433 || strcmp (result, "0xc.1p-3 33") == 0);
434 ASSERT (retval == strlen (result));
437 { /* Rounding with precision 2. */
440 my_sprintf (result, "%.2La %d", 1.51L, 33, 44, 55);
441 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
442 || strcmp (result, "0x3.05p-1 33") == 0
443 || strcmp (result, "0x6.0ap-2 33") == 0
444 || strcmp (result, "0xc.14p-3 33") == 0);
445 ASSERT (retval == strlen (result));
448 { /* Rounding with precision 3. */
451 my_sprintf (result, "%.3La %d", 1.51L, 33, 44, 55);
452 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
453 || strcmp (result, "0x3.052p-1 33") == 0
454 || strcmp (result, "0x6.0a4p-2 33") == 0
455 || strcmp (result, "0xc.148p-3 33") == 0);
456 ASSERT (retval == strlen (result));
459 { /* Rounding can turn a ...FFF into a ...000. */
462 my_sprintf (result, "%.3La %d", 1.49999L, 33, 44, 55);
463 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
464 || strcmp (result, "0x3.000p-1 33") == 0
465 || strcmp (result, "0x6.000p-2 33") == 0
466 || strcmp (result, "0xc.000p-3 33") == 0);
467 ASSERT (retval == strlen (result));
470 { /* Rounding can turn a ...FFF into a ...000.
471 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
472 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
475 my_sprintf (result, "%.1La %d", 1.999L, 33, 44, 55);
476 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
477 || strcmp (result, "0x2.0p+0 33") == 0
478 || strcmp (result, "0x4.0p-1 33") == 0
479 || strcmp (result, "0x8.0p-2 33") == 0);
480 ASSERT (retval == strlen (result));
486 my_sprintf (result, "%10La %d", 1.75L, 33, 44, 55);
487 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
488 || strcmp (result, " 0x3.8p-1 33") == 0
489 || strcmp (result, " 0x7p-2 33") == 0
490 || strcmp (result, " 0xep-3 33") == 0);
491 ASSERT (retval == strlen (result));
494 { /* Small precision. */
497 my_sprintf (result, "%.10La %d", 1.75L, 33, 44, 55);
498 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
499 || strcmp (result, "0x3.8000000000p-1 33") == 0
500 || strcmp (result, "0x7.0000000000p-2 33") == 0
501 || strcmp (result, "0xe.0000000000p-3 33") == 0);
502 ASSERT (retval == strlen (result));
505 { /* Large precision. */
508 my_sprintf (result, "%.50La %d", 1.75L, 33, 44, 55);
509 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
510 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
511 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
512 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
513 ASSERT (retval == strlen (result));
519 my_sprintf (result, "%-10La %d", 1.75L, 33, 44, 55);
520 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
521 || strcmp (result, "0x3.8p-1 33") == 0
522 || strcmp (result, "0x7p-2 33") == 0
523 || strcmp (result, "0xep-3 33") == 0);
524 ASSERT (retval == strlen (result));
527 { /* FLAG_SHOWSIGN. */
530 my_sprintf (result, "%+La %d", 1.75L, 33, 44, 55);
531 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
532 || strcmp (result, "+0x3.8p-1 33") == 0
533 || strcmp (result, "+0x7p-2 33") == 0
534 || strcmp (result, "+0xep-3 33") == 0);
535 ASSERT (retval == strlen (result));
541 my_sprintf (result, "% La %d", 1.75L, 33, 44, 55);
542 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
543 || strcmp (result, " 0x3.8p-1 33") == 0
544 || strcmp (result, " 0x7p-2 33") == 0
545 || strcmp (result, " 0xep-3 33") == 0);
546 ASSERT (retval == strlen (result));
552 my_sprintf (result, "%#La %d", 1.75L, 33, 44, 55);
553 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
554 || strcmp (result, "0x3.8p-1 33") == 0
555 || strcmp (result, "0x7.p-2 33") == 0
556 || strcmp (result, "0xe.p-3 33") == 0);
557 ASSERT (retval == strlen (result));
563 my_sprintf (result, "%#La %d", 1.0L, 33, 44, 55);
564 ASSERT (strcmp (result, "0x1.p+0 33") == 0
565 || strcmp (result, "0x2.p-1 33") == 0
566 || strcmp (result, "0x4.p-2 33") == 0
567 || strcmp (result, "0x8.p-3 33") == 0);
568 ASSERT (retval == strlen (result));
571 { /* FLAG_ZERO with finite number. */
574 my_sprintf (result, "%010La %d", 1.75L, 33, 44, 55);
575 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
576 || strcmp (result, "0x003.8p-1 33") == 0
577 || strcmp (result, "0x00007p-2 33") == 0
578 || strcmp (result, "0x0000ep-3 33") == 0);
579 ASSERT (retval == strlen (result));
582 { /* FLAG_ZERO with infinite number. */
585 my_sprintf (result, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
586 ASSERT (strcmp (result, " inf 33") == 0
587 || strcmp (result, "0000000inf 33") == 0);
588 ASSERT (retval == strlen (result));
591 { /* FLAG_ZERO with NaN. */
594 my_sprintf (result, "%010La %d", 0.0L / 0.0L, 33, 44, 55);
595 ASSERT (strcmp (result, " nan 33") == 0
596 || strcmp (result, "0000000nan 33") == 0);
597 ASSERT (retval == strlen (result));
600 /* Test the support of the %n format directive. */
606 my_sprintf (result, "%d %n", 123, &count, 33, 44, 55);
607 ASSERT (strcmp (result, "123 ") == 0);
608 ASSERT (retval == strlen (result));
612 /* Test the support of the POSIX/XSI format strings with positions. */
617 my_sprintf (result, "%2$d %1$d", 33, 55);
618 ASSERT (strcmp (result, "55 33") == 0);
619 ASSERT (retval == strlen (result));