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 ASSERT (retval == strlen (result));
334 { /* FLAG_ZERO with NaN. */
337 my_sprintf (result, "%010a %d", NaN (), 33, 44, 55);
338 ASSERT (strcmp (result, " nan 33") == 0);
339 ASSERT (retval == strlen (result));
344 { /* A positive number. */
347 my_sprintf (result, "%La %d", 3.1416015625L, 33, 44, 55);
348 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
349 || strcmp (result, "0x3.244p+0 33") == 0
350 || strcmp (result, "0x6.488p-1 33") == 0
351 || strcmp (result, "0xc.91p-2 33") == 0);
352 ASSERT (retval == strlen (result));
355 { /* A negative number. */
358 my_sprintf (result, "%LA %d", -3.1416015625L, 33, 44, 55);
359 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
360 || strcmp (result, "-0X3.244P+0 33") == 0
361 || strcmp (result, "-0X6.488P-1 33") == 0
362 || strcmp (result, "-0XC.91P-2 33") == 0);
363 ASSERT (retval == strlen (result));
366 { /* Positive zero. */
369 my_sprintf (result, "%La %d", 0.0L, 33, 44, 55);
370 ASSERT (strcmp (result, "0x0p+0 33") == 0);
371 ASSERT (retval == strlen (result));
374 { /* Negative zero. */
377 my_sprintf (result, "%La %d", -0.0L, 33, 44, 55);
378 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
379 ASSERT (retval == strlen (result));
382 { /* Positive infinity. */
385 my_sprintf (result, "%La %d", 1.0L / 0.0L, 33, 44, 55);
386 ASSERT (strcmp (result, "inf 33") == 0);
387 ASSERT (retval == strlen (result));
390 { /* Negative infinity. */
393 my_sprintf (result, "%La %d", -1.0L / 0.0L, 33, 44, 55);
394 ASSERT (strcmp (result, "-inf 33") == 0);
395 ASSERT (retval == strlen (result));
401 my_sprintf (result, "%La %d", 0.0L / 0.0L, 33, 44, 55);
402 ASSERT (strcmp (result, "nan 33") == 0);
403 ASSERT (retval == strlen (result));
406 { /* Rounding near the decimal point. */
409 my_sprintf (result, "%.0La %d", 1.5L, 33, 44, 55);
410 ASSERT (strcmp (result, "0x2p+0 33") == 0
411 || strcmp (result, "0x3p-1 33") == 0
412 || strcmp (result, "0x6p-2 33") == 0
413 || strcmp (result, "0xcp-3 33") == 0);
414 ASSERT (retval == strlen (result));
417 { /* Rounding with precision 0. */
420 my_sprintf (result, "%.0La %d", 1.51L, 33, 44, 55);
421 ASSERT (strcmp (result, "0x2p+0 33") == 0
422 || strcmp (result, "0x3p-1 33") == 0
423 || strcmp (result, "0x6p-2 33") == 0
424 || strcmp (result, "0xcp-3 33") == 0);
425 ASSERT (retval == strlen (result));
428 { /* Rounding with precision 1. */
431 my_sprintf (result, "%.1La %d", 1.51L, 33, 44, 55);
432 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
433 || strcmp (result, "0x3.0p-1 33") == 0
434 || strcmp (result, "0x6.1p-2 33") == 0
435 || strcmp (result, "0xc.1p-3 33") == 0);
436 ASSERT (retval == strlen (result));
439 { /* Rounding with precision 2. */
442 my_sprintf (result, "%.2La %d", 1.51L, 33, 44, 55);
443 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
444 || strcmp (result, "0x3.05p-1 33") == 0
445 || strcmp (result, "0x6.0ap-2 33") == 0
446 || strcmp (result, "0xc.14p-3 33") == 0);
447 ASSERT (retval == strlen (result));
450 { /* Rounding with precision 3. */
453 my_sprintf (result, "%.3La %d", 1.51L, 33, 44, 55);
454 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
455 || strcmp (result, "0x3.052p-1 33") == 0
456 || strcmp (result, "0x6.0a4p-2 33") == 0
457 || strcmp (result, "0xc.148p-3 33") == 0);
458 ASSERT (retval == strlen (result));
461 { /* Rounding can turn a ...FFF into a ...000. */
464 my_sprintf (result, "%.3La %d", 1.49999L, 33, 44, 55);
465 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
466 || strcmp (result, "0x3.000p-1 33") == 0
467 || strcmp (result, "0x6.000p-2 33") == 0
468 || strcmp (result, "0xc.000p-3 33") == 0);
469 ASSERT (retval == strlen (result));
472 { /* Rounding can turn a ...FFF into a ...000.
473 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
474 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
477 my_sprintf (result, "%.1La %d", 1.999L, 33, 44, 55);
478 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
479 || strcmp (result, "0x2.0p+0 33") == 0
480 || strcmp (result, "0x4.0p-1 33") == 0
481 || strcmp (result, "0x8.0p-2 33") == 0);
482 ASSERT (retval == strlen (result));
488 my_sprintf (result, "%10La %d", 1.75L, 33, 44, 55);
489 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
490 || strcmp (result, " 0x3.8p-1 33") == 0
491 || strcmp (result, " 0x7p-2 33") == 0
492 || strcmp (result, " 0xep-3 33") == 0);
493 ASSERT (retval == strlen (result));
496 { /* Small precision. */
499 my_sprintf (result, "%.10La %d", 1.75L, 33, 44, 55);
500 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
501 || strcmp (result, "0x3.8000000000p-1 33") == 0
502 || strcmp (result, "0x7.0000000000p-2 33") == 0
503 || strcmp (result, "0xe.0000000000p-3 33") == 0);
504 ASSERT (retval == strlen (result));
507 { /* Large precision. */
510 my_sprintf (result, "%.50La %d", 1.75L, 33, 44, 55);
511 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
512 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
513 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
514 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
515 ASSERT (retval == strlen (result));
521 my_sprintf (result, "%-10La %d", 1.75L, 33, 44, 55);
522 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
523 || strcmp (result, "0x3.8p-1 33") == 0
524 || strcmp (result, "0x7p-2 33") == 0
525 || strcmp (result, "0xep-3 33") == 0);
526 ASSERT (retval == strlen (result));
529 { /* FLAG_SHOWSIGN. */
532 my_sprintf (result, "%+La %d", 1.75L, 33, 44, 55);
533 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
534 || strcmp (result, "+0x3.8p-1 33") == 0
535 || strcmp (result, "+0x7p-2 33") == 0
536 || strcmp (result, "+0xep-3 33") == 0);
537 ASSERT (retval == strlen (result));
543 my_sprintf (result, "% La %d", 1.75L, 33, 44, 55);
544 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
545 || strcmp (result, " 0x3.8p-1 33") == 0
546 || strcmp (result, " 0x7p-2 33") == 0
547 || strcmp (result, " 0xep-3 33") == 0);
548 ASSERT (retval == strlen (result));
554 my_sprintf (result, "%#La %d", 1.75L, 33, 44, 55);
555 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
556 || strcmp (result, "0x3.8p-1 33") == 0
557 || strcmp (result, "0x7.p-2 33") == 0
558 || strcmp (result, "0xe.p-3 33") == 0);
559 ASSERT (retval == strlen (result));
565 my_sprintf (result, "%#La %d", 1.0L, 33, 44, 55);
566 ASSERT (strcmp (result, "0x1.p+0 33") == 0
567 || strcmp (result, "0x2.p-1 33") == 0
568 || strcmp (result, "0x4.p-2 33") == 0
569 || strcmp (result, "0x8.p-3 33") == 0);
570 ASSERT (retval == strlen (result));
573 { /* FLAG_ZERO with finite number. */
576 my_sprintf (result, "%010La %d", 1.75L, 33, 44, 55);
577 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
578 || strcmp (result, "0x003.8p-1 33") == 0
579 || strcmp (result, "0x00007p-2 33") == 0
580 || strcmp (result, "0x0000ep-3 33") == 0);
581 ASSERT (retval == strlen (result));
584 { /* FLAG_ZERO with infinite number. */
587 my_sprintf (result, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
588 ASSERT (strcmp (result, " inf 33") == 0);
589 ASSERT (retval == strlen (result));
592 { /* FLAG_ZERO with NaN. */
595 my_sprintf (result, "%010La %d", 0.0L / 0.0L, 33, 44, 55);
596 ASSERT (strcmp (result, " nan 33") == 0);
597 ASSERT (retval == strlen (result));
602 /* Test the support of the %n format directive. */
608 my_sprintf (result, "%d %n", 123, &count, 33, 44, 55);
609 ASSERT (strcmp (result, "123 ") == 0);
610 ASSERT (retval == strlen (result));
614 /* Test the support of the POSIX/XSI format strings with positions. */
619 my_sprintf (result, "%2$d %1$d", 33, 55);
620 ASSERT (strcmp (result, "55 33") == 0);
621 ASSERT (retval == strlen (result));