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expl: Work around inaccurate implementation on NetBSD.
[gnulib.git] / tests / test-vasnprintf-posix.c
blob5a84bf9121651d12fb114d30f426494280951af4
1 /* Test of POSIX compatible vasnprintf() and asnprintf() functions.
2 Copyright (C) 2007-2019 Free Software Foundation, Inc.
3
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 3 of the License, or
7 (at your option) any later version.
8
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.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
18
19 #include <config.h>
20
21 #include "vasnprintf.h"
22
23 #include <errno.h>
24 #include <float.h>
25 #include <stdarg.h>
26 #include <stddef.h>
27 #include <stdint.h>
28 #include <stdlib.h>
29 #include <string.h>
30
31 #include "macros.h"
32 #include "minus-zero.h"
33 #include "infinity.h"
34 #include "nan.h"
35
36 /* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0. */
37 static int
38 have_minus_zero ()
39 {
40 static double plus_zero = 0.0;
41 double minus_zero = minus_zerod;
42 return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
43 }
44
45 /* Representation of an 80-bit 'long double' as an initializer for a sequence
46 of 'unsigned int' words. */
47 #ifdef WORDS_BIGENDIAN
48 # define LDBL80_WORDS(exponent,manthi,mantlo) \
49 { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
50 ((unsigned int) (manthi) << 16) | ((unsigned int) (mantlo) >> 16), \
51 (unsigned int) (mantlo) << 16 \
52 }
53 #else
54 # define LDBL80_WORDS(exponent,manthi,mantlo) \
55 { mantlo, manthi, exponent }
56 #endif
57
58 static int
59 strmatch (const char *pattern, const char *string)
60 {
61 if (strlen (pattern) != strlen (string))
62 return 0;
63 for (; *pattern != '\0'; pattern++, string++)
64 if (*pattern != '*' && *string != *pattern)
65 return 0;
66 return 1;
67 }
68
69 /* Test whether string[start_index..end_index-1] is a valid textual
70 representation of NaN. */
71 static int
72 strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
73 {
74 if (start_index < end_index)
75 {
76 if (string[start_index] == '-')
77 start_index++;
78 if (start_index + 3 <= end_index
79 && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
80 {
81 start_index += 3;
82 if (start_index == end_index
83 || (string[start_index] == '(' && string[end_index - 1] == ')'))
84 return 1;
85 }
86 }
87 return 0;
88 }
89
90 static void
91 test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
92 {
93 char buf[8];
94 int size;
95
96 /* Test return value convention. */
97
98 for (size = 0; size <= 8; size++)
99 {
100 size_t length = size;
101 char *result = my_asnprintf (NULL, &length, "%d", 12345);
102 ASSERT (result != NULL);
103 ASSERT (strcmp (result, "12345") == 0);
104 ASSERT (length == 5);
105 free (result);
106 }
107
108 for (size = 0; size <= 8; size++)
109 {
110 size_t length;
111 char *result;
112
113 memcpy (buf, "DEADBEEF", 8);
114 length = size;
115 result = my_asnprintf (buf, &length, "%d", 12345);
116 ASSERT (result != NULL);
117 ASSERT (strcmp (result, "12345") == 0);
118 ASSERT (length == 5);
119 if (size < 6)
120 ASSERT (result != buf);
121 ASSERT (memcmp (buf + size, &"DEADBEEF"[size], 8 - size) == 0);
122 if (result != buf)
123 free (result);
124 }
125
126 /* Test support of size specifiers as in C99. */
127
128 {
129 size_t length;
130 char *result =
131 my_asnprintf (NULL, &length, "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
132 ASSERT (result != NULL);
133 ASSERT (strcmp (result, "12345671 33") == 0);
134 ASSERT (length == strlen (result));
135 free (result);
136 }
137
138 {
139 size_t length;
140 char *result =
141 my_asnprintf (NULL, &length, "%zu %d", (size_t) 12345672, 33, 44, 55);
142 ASSERT (result != NULL);
143 ASSERT (strcmp (result, "12345672 33") == 0);
144 ASSERT (length == strlen (result));
145 free (result);
146 }
147
148 {
149 size_t length;
150 char *result =
151 my_asnprintf (NULL, &length, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
152 ASSERT (result != NULL);
153 ASSERT (strcmp (result, "12345673 33") == 0);
154 ASSERT (length == strlen (result));
155 free (result);
156 }
157
158 {
159 size_t length;
160 char *result =
161 my_asnprintf (NULL, &length, "%Lg %d", (long double) 1.5, 33, 44, 55);
162 ASSERT (result != NULL);
163 ASSERT (strcmp (result, "1.5 33") == 0);
164 ASSERT (length == strlen (result));
165 free (result);
166 }
167
168 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
169 output of floating-point numbers. */
170
171 { /* A positive number. */
172 size_t length;
173 char *result =
174 my_asnprintf (NULL, &length, "%a %d", 3.1416015625, 33, 44, 55);
175 ASSERT (result != NULL);
176 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
177 || strcmp (result, "0x3.244p+0 33") == 0
178 || strcmp (result, "0x6.488p-1 33") == 0
179 || strcmp (result, "0xc.91p-2 33") == 0);
180 ASSERT (length == strlen (result));
181 free (result);
182 }
183
184 { /* A negative number. */
185 size_t length;
186 char *result =
187 my_asnprintf (NULL, &length, "%A %d", -3.1416015625, 33, 44, 55);
188 ASSERT (result != NULL);
189 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
190 || strcmp (result, "-0X3.244P+0 33") == 0
191 || strcmp (result, "-0X6.488P-1 33") == 0
192 || strcmp (result, "-0XC.91P-2 33") == 0);
193 ASSERT (length == strlen (result));
194 free (result);
195 }
196
197 { /* Positive zero. */
198 size_t length;
199 char *result =
200 my_asnprintf (NULL, &length, "%a %d", 0.0, 33, 44, 55);
201 ASSERT (result != NULL);
202 ASSERT (strcmp (result, "0x0p+0 33") == 0);
203 ASSERT (length == strlen (result));
204 free (result);
205 }
206
207 { /* Negative zero. */
208 size_t length;
209 char *result =
210 my_asnprintf (NULL, &length, "%a %d", minus_zerod, 33, 44, 55);
211 ASSERT (result != NULL);
212 if (have_minus_zero ())
213 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
214 ASSERT (length == strlen (result));
215 free (result);
216 }
217
218 { /* Positive infinity. */
219 size_t length;
220 char *result =
221 my_asnprintf (NULL, &length, "%a %d", Infinityd (), 33, 44, 55);
222 ASSERT (result != NULL);
223 ASSERT (strcmp (result, "inf 33") == 0);
224 ASSERT (length == strlen (result));
225 free (result);
226 }
227
228 { /* Negative infinity. */
229 size_t length;
230 char *result =
231 my_asnprintf (NULL, &length, "%a %d", - Infinityd (), 33, 44, 55);
232 ASSERT (result != NULL);
233 ASSERT (strcmp (result, "-inf 33") == 0);
234 ASSERT (length == strlen (result));
235 free (result);
236 }
237
238 { /* NaN. */
239 size_t length;
240 char *result =
241 my_asnprintf (NULL, &length, "%a %d", NaNd (), 33, 44, 55);
242 ASSERT (result != NULL);
243 ASSERT (strlen (result) >= 3 + 3
244 && strisnan (result, 0, strlen (result) - 3, 0)
245 && strcmp (result + strlen (result) - 3, " 33") == 0);
246 ASSERT (length == strlen (result));
247 free (result);
248 }
249
250 { /* Rounding near the decimal point. */
251 size_t length;
252 char *result =
253 my_asnprintf (NULL, &length, "%.0a %d", 1.5, 33, 44, 55);
254 ASSERT (result != NULL);
255 ASSERT (strcmp (result, "0x1p+0 33") == 0
256 || strcmp (result, "0x2p+0 33") == 0
257 || strcmp (result, "0x3p-1 33") == 0
258 || strcmp (result, "0x6p-2 33") == 0
259 || strcmp (result, "0xcp-3 33") == 0);
260 ASSERT (length == strlen (result));
261 free (result);
262 }
263
264 { /* Rounding with precision 0. */
265 size_t length;
266 char *result =
267 my_asnprintf (NULL, &length, "%.0a %d", 1.51, 33, 44, 55);
268 ASSERT (result != NULL);
269 ASSERT (strcmp (result, "0x2p+0 33") == 0
270 || strcmp (result, "0x3p-1 33") == 0
271 || strcmp (result, "0x6p-2 33") == 0
272 || strcmp (result, "0xcp-3 33") == 0);
273 ASSERT (length == strlen (result));
274 free (result);
275 }
276
277 { /* Rounding with precision 1. */
278 size_t length;
279 char *result =
280 my_asnprintf (NULL, &length, "%.1a %d", 1.51, 33, 44, 55);
281 ASSERT (result != NULL);
282 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
283 || strcmp (result, "0x3.0p-1 33") == 0
284 || strcmp (result, "0x6.1p-2 33") == 0
285 || strcmp (result, "0xc.1p-3 33") == 0);
286 ASSERT (length == strlen (result));
287 free (result);
288 }
289
290 { /* Rounding with precision 2. */
291 size_t length;
292 char *result =
293 my_asnprintf (NULL, &length, "%.2a %d", 1.51, 33, 44, 55);
294 ASSERT (result != NULL);
295 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
296 || strcmp (result, "0x3.05p-1 33") == 0
297 || strcmp (result, "0x6.0ap-2 33") == 0
298 || strcmp (result, "0xc.14p-3 33") == 0);
299 ASSERT (length == strlen (result));
300 free (result);
301 }
302
303 { /* Rounding with precision 3. */
304 size_t length;
305 char *result =
306 my_asnprintf (NULL, &length, "%.3a %d", 1.51, 33, 44, 55);
307 ASSERT (result != NULL);
308 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
309 || strcmp (result, "0x3.052p-1 33") == 0
310 || strcmp (result, "0x6.0a4p-2 33") == 0
311 || strcmp (result, "0xc.148p-3 33") == 0);
312 ASSERT (length == strlen (result));
313 free (result);
314 }
315
316 { /* Rounding can turn a ...FFF into a ...000. */
317 size_t length;
318 char *result =
319 my_asnprintf (NULL, &length, "%.3a %d", 1.49999, 33, 44, 55);
320 ASSERT (result != NULL);
321 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
322 || strcmp (result, "0x3.000p-1 33") == 0
323 || strcmp (result, "0x6.000p-2 33") == 0
324 || strcmp (result, "0xc.000p-3 33") == 0);
325 ASSERT (length == strlen (result));
326 free (result);
327 }
328
329 { /* Rounding can turn a ...FFF into a ...000.
330 This shows a Mac OS X 10.3.9 (Darwin 7.9) bug. */
331 size_t length;
332 char *result =
333 my_asnprintf (NULL, &length, "%.1a %d", 1.999, 33, 44, 55);
334 ASSERT (result != NULL);
335 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
336 || strcmp (result, "0x2.0p+0 33") == 0
337 || strcmp (result, "0x4.0p-1 33") == 0
338 || strcmp (result, "0x8.0p-2 33") == 0);
339 ASSERT (length == strlen (result));
340 free (result);
341 }
342
343 { /* Width. */
344 size_t length;
345 char *result =
346 my_asnprintf (NULL, &length, "%10a %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 (length == strlen (result));
353 free (result);
354 }
355
356 { /* Small precision. */
357 size_t length;
358 char *result =
359 my_asnprintf (NULL, &length, "%.10a %d", 1.75, 33, 44, 55);
360 ASSERT (result != NULL);
361 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
362 || strcmp (result, "0x3.8000000000p-1 33") == 0
363 || strcmp (result, "0x7.0000000000p-2 33") == 0
364 || strcmp (result, "0xe.0000000000p-3 33") == 0);
365 ASSERT (length == strlen (result));
366 free (result);
367 }
368
369 { /* Large precision. */
370 size_t length;
371 char *result =
372 my_asnprintf (NULL, &length, "%.50a %d", 1.75, 33, 44, 55);
373 ASSERT (result != NULL);
374 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
375 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
376 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
377 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
378 ASSERT (length == strlen (result));
379 free (result);
380 }
381
382 { /* FLAG_LEFT. */
383 size_t length;
384 char *result =
385 my_asnprintf (NULL, &length, "%-10a %d", 1.75, 33, 44, 55);
386 ASSERT (result != NULL);
387 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
388 || strcmp (result, "0x3.8p-1 33") == 0
389 || strcmp (result, "0x7p-2 33") == 0
390 || strcmp (result, "0xep-3 33") == 0);
391 ASSERT (length == strlen (result));
392 free (result);
393 }
394
395 { /* FLAG_SHOWSIGN. */
396 size_t length;
397 char *result =
398 my_asnprintf (NULL, &length, "%+a %d", 1.75, 33, 44, 55);
399 ASSERT (result != NULL);
400 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
401 || strcmp (result, "+0x3.8p-1 33") == 0
402 || strcmp (result, "+0x7p-2 33") == 0
403 || strcmp (result, "+0xep-3 33") == 0);
404 ASSERT (length == strlen (result));
405 free (result);
406 }
407
408 { /* FLAG_SPACE. */
409 size_t length;
410 char *result =
411 my_asnprintf (NULL, &length, "% a %d", 1.75, 33, 44, 55);
412 ASSERT (result != NULL);
413 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
414 || strcmp (result, " 0x3.8p-1 33") == 0
415 || strcmp (result, " 0x7p-2 33") == 0
416 || strcmp (result, " 0xep-3 33") == 0);
417 ASSERT (length == strlen (result));
418 free (result);
419 }
420
421 { /* FLAG_ALT. */
422 size_t length;
423 char *result =
424 my_asnprintf (NULL, &length, "%#a %d", 1.75, 33, 44, 55);
425 ASSERT (result != NULL);
426 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
427 || strcmp (result, "0x3.8p-1 33") == 0
428 || strcmp (result, "0x7.p-2 33") == 0
429 || strcmp (result, "0xe.p-3 33") == 0);
430 ASSERT (length == strlen (result));
431 free (result);
432 }
433
434 { /* FLAG_ALT. */
435 size_t length;
436 char *result =
437 my_asnprintf (NULL, &length, "%#a %d", 1.0, 33, 44, 55);
438 ASSERT (result != NULL);
439 ASSERT (strcmp (result, "0x1.p+0 33") == 0
440 || strcmp (result, "0x2.p-1 33") == 0
441 || strcmp (result, "0x4.p-2 33") == 0
442 || strcmp (result, "0x8.p-3 33") == 0);
443 ASSERT (length == strlen (result));
444 free (result);
445 }
446
447 { /* FLAG_ZERO with finite number. */
448 size_t length;
449 char *result =
450 my_asnprintf (NULL, &length, "%010a %d", 1.75, 33, 44, 55);
451 ASSERT (result != NULL);
452 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
453 || strcmp (result, "0x003.8p-1 33") == 0
454 || strcmp (result, "0x00007p-2 33") == 0
455 || strcmp (result, "0x0000ep-3 33") == 0);
456 ASSERT (length == strlen (result));
457 free (result);
458 }
459
460 { /* FLAG_ZERO with infinite number. */
461 size_t length;
462 char *result =
463 my_asnprintf (NULL, &length, "%010a %d", Infinityd (), 33, 44, 55);
464 ASSERT (result != NULL);
465 /* "0000000inf 33" is not a valid result; see
466 <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> */
467 ASSERT (strcmp (result, " inf 33") == 0);
468 ASSERT (length == strlen (result));
469 free (result);
470 }
471
472 { /* FLAG_ZERO with NaN. */
473 size_t length;
474 char *result =
475 my_asnprintf (NULL, &length, "%050a %d", NaNd (), 33, 44, 55);
476 ASSERT (result != NULL);
477 /* "0000000nan 33" is not a valid result; see
478 <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> */
479 ASSERT (strlen (result) == 50 + 3
480 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
481 && strcmp (result + strlen (result) - 3, " 33") == 0);
482 ASSERT (length == strlen (result));
483 free (result);
484 }
485
486 { /* A positive number. */
487 size_t length;
488 char *result =
489 my_asnprintf (NULL, &length, "%La %d", 3.1416015625L, 33, 44, 55);
490 ASSERT (result != NULL);
491 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
492 || strcmp (result, "0x3.244p+0 33") == 0
493 || strcmp (result, "0x6.488p-1 33") == 0
494 || strcmp (result, "0xc.91p-2 33") == 0);
495 ASSERT (length == strlen (result));
496 free (result);
497 }
498
499 { /* A negative number. */
500 size_t length;
501 char *result =
502 my_asnprintf (NULL, &length, "%LA %d", -3.1416015625L, 33, 44, 55);
503 ASSERT (result != NULL);
504 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
505 || strcmp (result, "-0X3.244P+0 33") == 0
506 || strcmp (result, "-0X6.488P-1 33") == 0
507 || strcmp (result, "-0XC.91P-2 33") == 0);
508 ASSERT (length == strlen (result));
509 free (result);
510 }
511
512 { /* Positive zero. */
513 size_t length;
514 char *result =
515 my_asnprintf (NULL, &length, "%La %d", 0.0L, 33, 44, 55);
516 ASSERT (result != NULL);
517 ASSERT (strcmp (result, "0x0p+0 33") == 0);
518 ASSERT (length == strlen (result));
519 free (result);
520 }
521
522 { /* Negative zero. */
523 size_t length;
524 char *result =
525 my_asnprintf (NULL, &length, "%La %d", minus_zerol, 33, 44, 55);
526 ASSERT (result != NULL);
527 if (have_minus_zero ())
528 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
529 ASSERT (length == strlen (result));
530 free (result);
531 }
532
533 { /* Positive infinity. */
534 size_t length;
535 char *result =
536 my_asnprintf (NULL, &length, "%La %d", Infinityl (), 33, 44, 55);
537 ASSERT (result != NULL);
538 ASSERT (strcmp (result, "inf 33") == 0);
539 ASSERT (length == strlen (result));
540 free (result);
541 }
542
543 { /* Negative infinity. */
544 size_t length;
545 char *result =
546 my_asnprintf (NULL, &length, "%La %d", - Infinityl (), 33, 44, 55);
547 ASSERT (result != NULL);
548 ASSERT (strcmp (result, "-inf 33") == 0);
549 ASSERT (length == strlen (result));
550 free (result);
551 }
552
553 { /* NaN. */
554 size_t length;
555 char *result =
556 my_asnprintf (NULL, &length, "%La %d", NaNl (), 33, 44, 55);
557 ASSERT (result != NULL);
558 ASSERT (strlen (result) >= 3 + 3
559 && strisnan (result, 0, strlen (result) - 3, 0)
560 && strcmp (result + strlen (result) - 3, " 33") == 0);
561 ASSERT (length == strlen (result));
562 free (result);
563 }
564 #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
565 { /* Quiet NaN. */
566 static union { unsigned int word[4]; long double value; } x =
567 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
568 size_t length;
569 char *result =
570 my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
571 ASSERT (result != NULL);
572 ASSERT (strlen (result) >= 3 + 3
573 && strisnan (result, 0, strlen (result) - 3, 0)
574 && strcmp (result + strlen (result) - 3, " 33") == 0);
575 ASSERT (length == strlen (result));
576 free (result);
577 }
578 {
579 /* Signalling NaN. */
580 static union { unsigned int word[4]; long double value; } x =
581 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
582 size_t length;
583 char *result =
584 my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
585 ASSERT (result != NULL);
586 ASSERT (strlen (result) >= 3 + 3
587 && strisnan (result, 0, strlen (result) - 3, 0)
588 && strcmp (result + strlen (result) - 3, " 33") == 0);
589 ASSERT (length == strlen (result));
590 free (result);
591 }
592 /* asnprintf should print something for noncanonical values. */
593 { /* Pseudo-NaN. */
594 static union { unsigned int word[4]; long double value; } x =
595 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
596 size_t length;
597 char *result =
598 my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
599 ASSERT (result != NULL);
600 ASSERT (length == strlen (result));
601 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
602 free (result);
603 }
604 { /* Pseudo-Infinity. */
605 static union { unsigned int word[4]; long double value; } x =
606 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
607 size_t length;
608 char *result =
609 my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
610 ASSERT (result != NULL);
611 ASSERT (length == strlen (result));
612 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
613 free (result);
614 }
615 { /* Pseudo-Zero. */
616 static union { unsigned int word[4]; long double value; } x =
617 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
618 size_t length;
619 char *result =
620 my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
621 ASSERT (result != NULL);
622 ASSERT (length == strlen (result));
623 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
624 free (result);
625 }
626 { /* Unnormalized number. */
627 static union { unsigned int word[4]; long double value; } x =
628 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
629 size_t length;
630 char *result =
631 my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
632 ASSERT (result != NULL);
633 ASSERT (length == strlen (result));
634 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
635 free (result);
636 }
637 { /* Pseudo-Denormal. */
638 static union { unsigned int word[4]; long double value; } x =
639 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
640 size_t length;
641 char *result =
642 my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
643 ASSERT (result != NULL);
644 ASSERT (length == strlen (result));
645 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
646 free (result);
647 }
648 #endif
649
650 { /* Rounding near the decimal point. */
651 size_t length;
652 char *result =
653 my_asnprintf (NULL, &length, "%.0La %d", 1.5L, 33, 44, 55);
654 ASSERT (result != NULL);
655 ASSERT (strcmp (result, "0x2p+0 33") == 0
656 || strcmp (result, "0x3p-1 33") == 0
657 || strcmp (result, "0x6p-2 33") == 0
658 || strcmp (result, "0xcp-3 33") == 0);
659 ASSERT (length == strlen (result));
660 free (result);
661 }
662
663 { /* Rounding with precision 0. */
664 size_t length;
665 char *result =
666 my_asnprintf (NULL, &length, "%.0La %d", 1.51L, 33, 44, 55);
667 ASSERT (result != NULL);
668 ASSERT (strcmp (result, "0x2p+0 33") == 0
669 || strcmp (result, "0x3p-1 33") == 0
670 || strcmp (result, "0x6p-2 33") == 0
671 || strcmp (result, "0xcp-3 33") == 0);
672 ASSERT (length == strlen (result));
673 free (result);
674 }
675
676 { /* Rounding with precision 1. */
677 size_t length;
678 char *result =
679 my_asnprintf (NULL, &length, "%.1La %d", 1.51L, 33, 44, 55);
680 ASSERT (result != NULL);
681 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
682 || strcmp (result, "0x3.0p-1 33") == 0
683 || strcmp (result, "0x6.1p-2 33") == 0
684 || strcmp (result, "0xc.1p-3 33") == 0);
685 ASSERT (length == strlen (result));
686 free (result);
687 }
688
689 { /* Rounding with precision 2. */
690 size_t length;
691 char *result =
692 my_asnprintf (NULL, &length, "%.2La %d", 1.51L, 33, 44, 55);
693 ASSERT (result != NULL);
694 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
695 || strcmp (result, "0x3.05p-1 33") == 0
696 || strcmp (result, "0x6.0ap-2 33") == 0
697 || strcmp (result, "0xc.14p-3 33") == 0);
698 ASSERT (length == strlen (result));
699 free (result);
700 }
701
702 { /* Rounding with precision 3. */
703 size_t length;
704 char *result =
705 my_asnprintf (NULL, &length, "%.3La %d", 1.51L, 33, 44, 55);
706 ASSERT (result != NULL);
707 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
708 || strcmp (result, "0x3.052p-1 33") == 0
709 || strcmp (result, "0x6.0a4p-2 33") == 0
710 || strcmp (result, "0xc.148p-3 33") == 0);
711 ASSERT (length == strlen (result));
712 free (result);
713 }
714
715 { /* Rounding can turn a ...FFF into a ...000. */
716 size_t length;
717 char *result =
718 my_asnprintf (NULL, &length, "%.3La %d", 1.49999L, 33, 44, 55);
719 ASSERT (result != NULL);
720 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
721 || strcmp (result, "0x3.000p-1 33") == 0
722 || strcmp (result, "0x6.000p-2 33") == 0
723 || strcmp (result, "0xc.000p-3 33") == 0);
724 ASSERT (length == strlen (result));
725 free (result);
726 }
727
728 { /* Rounding can turn a ...FFF into a ...000.
729 This shows a Mac OS X 10.3.9 (Darwin 7.9) bug and a
730 glibc 2.4 bug <https://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
731 size_t length;
732 char *result =
733 my_asnprintf (NULL, &length, "%.1La %d", 1.999L, 33, 44, 55);
734 ASSERT (result != NULL);
735 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
736 || strcmp (result, "0x2.0p+0 33") == 0
737 || strcmp (result, "0x4.0p-1 33") == 0
738 || strcmp (result, "0x8.0p-2 33") == 0);
739 ASSERT (length == strlen (result));
740 free (result);
741 }
742
743 { /* Width. */
744 size_t length;
745 char *result =
746 my_asnprintf (NULL, &length, "%10La %d", 1.75L, 33, 44, 55);
747 ASSERT (result != NULL);
748 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
749 || strcmp (result, " 0x3.8p-1 33") == 0
750 || strcmp (result, " 0x7p-2 33") == 0
751 || strcmp (result, " 0xep-3 33") == 0);
752 ASSERT (length == strlen (result));
753 free (result);
754 }
755
756 { /* Small precision. */
757 size_t length;
758 char *result =
759 my_asnprintf (NULL, &length, "%.10La %d", 1.75L, 33, 44, 55);
760 ASSERT (result != NULL);
761 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
762 || strcmp (result, "0x3.8000000000p-1 33") == 0
763 || strcmp (result, "0x7.0000000000p-2 33") == 0
764 || strcmp (result, "0xe.0000000000p-3 33") == 0);
765 ASSERT (length == strlen (result));
766 free (result);
767 }
768
769 { /* Large precision. */
770 size_t length;
771 char *result =
772 my_asnprintf (NULL, &length, "%.50La %d", 1.75L, 33, 44, 55);
773 ASSERT (result != NULL);
774 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
775 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
776 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
777 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
778 ASSERT (length == strlen (result));
779 free (result);
780 }
781
782 { /* FLAG_LEFT. */
783 size_t length;
784 char *result =
785 my_asnprintf (NULL, &length, "%-10La %d", 1.75L, 33, 44, 55);
786 ASSERT (result != NULL);
787 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
788 || strcmp (result, "0x3.8p-1 33") == 0
789 || strcmp (result, "0x7p-2 33") == 0
790 || strcmp (result, "0xep-3 33") == 0);
791 ASSERT (length == strlen (result));
792 free (result);
793 }
794
795 { /* FLAG_SHOWSIGN. */
796 size_t length;
797 char *result =
798 my_asnprintf (NULL, &length, "%+La %d", 1.75L, 33, 44, 55);
799 ASSERT (result != NULL);
800 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
801 || strcmp (result, "+0x3.8p-1 33") == 0
802 || strcmp (result, "+0x7p-2 33") == 0
803 || strcmp (result, "+0xep-3 33") == 0);
804 ASSERT (length == strlen (result));
805 free (result);
806 }
807
808 { /* FLAG_SPACE. */
809 size_t length;
810 char *result =
811 my_asnprintf (NULL, &length, "% La %d", 1.75L, 33, 44, 55);
812 ASSERT (result != NULL);
813 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
814 || strcmp (result, " 0x3.8p-1 33") == 0
815 || strcmp (result, " 0x7p-2 33") == 0
816 || strcmp (result, " 0xep-3 33") == 0);
817 ASSERT (length == strlen (result));
818 free (result);
819 }
820
821 { /* FLAG_ALT. */
822 size_t length;
823 char *result =
824 my_asnprintf (NULL, &length, "%#La %d", 1.75L, 33, 44, 55);
825 ASSERT (result != NULL);
826 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
827 || strcmp (result, "0x3.8p-1 33") == 0
828 || strcmp (result, "0x7.p-2 33") == 0
829 || strcmp (result, "0xe.p-3 33") == 0);
830 ASSERT (length == strlen (result));
831 free (result);
832 }
833
834 { /* FLAG_ALT. */
835 size_t length;
836 char *result =
837 my_asnprintf (NULL, &length, "%#La %d", 1.0L, 33, 44, 55);
838 ASSERT (result != NULL);
839 ASSERT (strcmp (result, "0x1.p+0 33") == 0
840 || strcmp (result, "0x2.p-1 33") == 0
841 || strcmp (result, "0x4.p-2 33") == 0
842 || strcmp (result, "0x8.p-3 33") == 0);
843 ASSERT (length == strlen (result));
844 free (result);
845 }
846
847 { /* FLAG_ZERO with finite number. */
848 size_t length;
849 char *result =
850 my_asnprintf (NULL, &length, "%010La %d", 1.75L, 33, 44, 55);
851 ASSERT (result != NULL);
852 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
853 || strcmp (result, "0x003.8p-1 33") == 0
854 || strcmp (result, "0x00007p-2 33") == 0
855 || strcmp (result, "0x0000ep-3 33") == 0);
856 ASSERT (length == strlen (result));
857 free (result);
858 }
859
860 { /* FLAG_ZERO with infinite number. */
861 size_t length;
862 char *result =
863 my_asnprintf (NULL, &length, "%010La %d", Infinityl (), 33, 44, 55);
864 ASSERT (result != NULL);
865 /* "0000000inf 33" is not a valid result; see
866 <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> */
867 ASSERT (strcmp (result, " inf 33") == 0);
868 ASSERT (length == strlen (result));
869 free (result);
870 }
871
872 { /* FLAG_ZERO with NaN. */
873 size_t length;
874 char *result =
875 my_asnprintf (NULL, &length, "%050La %d", NaNl (), 33, 44, 55);
876 ASSERT (result != NULL);
877 /* "0000000nan 33" is not a valid result; see
878 <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> */
879 ASSERT (strlen (result) == 50 + 3
880 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
881 && strcmp (result + strlen (result) - 3, " 33") == 0);
882 ASSERT (length == strlen (result));
883 free (result);
884 }
885
886 /* Test the support of the %f format directive. */
887
888 { /* A positive number. */
889 size_t length;
890 char *result =
891 my_asnprintf (NULL, &length, "%f %d", 12.75, 33, 44, 55);
892 ASSERT (result != NULL);
893 ASSERT (strcmp (result, "12.750000 33") == 0);
894 ASSERT (length == strlen (result));
895 free (result);
896 }
897
898 { /* A larger positive number. */
899 size_t length;
900 char *result =
901 my_asnprintf (NULL, &length, "%f %d", 1234567.0, 33, 44, 55);
902 ASSERT (result != NULL);
903 ASSERT (strcmp (result, "1234567.000000 33") == 0);
904 ASSERT (length == strlen (result));
905 free (result);
906 }
907
908 { /* Small and large positive numbers. */
909 static struct { double value; const char *string; } data[] =
910 {
911 { 1.234321234321234e-37, "0.000000" },
912 { 1.234321234321234e-36, "0.000000" },
913 { 1.234321234321234e-35, "0.000000" },
914 { 1.234321234321234e-34, "0.000000" },
915 { 1.234321234321234e-33, "0.000000" },
916 { 1.234321234321234e-32, "0.000000" },
917 { 1.234321234321234e-31, "0.000000" },
918 { 1.234321234321234e-30, "0.000000" },
919 { 1.234321234321234e-29, "0.000000" },
920 { 1.234321234321234e-28, "0.000000" },
921 { 1.234321234321234e-27, "0.000000" },
922 { 1.234321234321234e-26, "0.000000" },
923 { 1.234321234321234e-25, "0.000000" },
924 { 1.234321234321234e-24, "0.000000" },
925 { 1.234321234321234e-23, "0.000000" },
926 { 1.234321234321234e-22, "0.000000" },
927 { 1.234321234321234e-21, "0.000000" },
928 { 1.234321234321234e-20, "0.000000" },
929 { 1.234321234321234e-19, "0.000000" },
930 { 1.234321234321234e-18, "0.000000" },
931 { 1.234321234321234e-17, "0.000000" },
932 { 1.234321234321234e-16, "0.000000" },
933 { 1.234321234321234e-15, "0.000000" },
934 { 1.234321234321234e-14, "0.000000" },
935 { 1.234321234321234e-13, "0.000000" },
936 { 1.234321234321234e-12, "0.000000" },
937 { 1.234321234321234e-11, "0.000000" },
938 { 1.234321234321234e-10, "0.000000" },
939 { 1.234321234321234e-9, "0.000000" },
940 { 1.234321234321234e-8, "0.000000" },
941 { 1.234321234321234e-7, "0.000000" },
942 { 1.234321234321234e-6, "0.000001" },
943 { 1.234321234321234e-5, "0.000012" },
944 { 1.234321234321234e-4, "0.000123" },
945 { 1.234321234321234e-3, "0.001234" },
946 { 1.234321234321234e-2, "0.012343" },
947 { 1.234321234321234e-1, "0.123432" },
948 { 1.234321234321234, "1.234321" },
949 { 1.234321234321234e1, "12.343212" },
950 { 1.234321234321234e2, "123.432123" },
951 { 1.234321234321234e3, "1234.321234" },
952 { 1.234321234321234e4, "12343.212343" },
953 { 1.234321234321234e5, "123432.123432" },
954 { 1.234321234321234e6, "1234321.234321" },
955 { 1.234321234321234e7, "12343212.343212" },
956 { 1.234321234321234e8, "123432123.432123" },
957 { 1.234321234321234e9, "1234321234.321234" },
958 { 1.234321234321234e10, "12343212343.2123**" },
959 { 1.234321234321234e11, "123432123432.123***" },
960 { 1.234321234321234e12, "1234321234321.23****" },
961 { 1.234321234321234e13, "12343212343212.3*****" },
962 { 1.234321234321234e14, "123432123432123.******" },
963 { 1.234321234321234e15, "1234321234321234.000000" },
964 { 1.234321234321234e16, "123432123432123**.000000" },
965 { 1.234321234321234e17, "123432123432123***.000000" },
966 { 1.234321234321234e18, "123432123432123****.000000" },
967 { 1.234321234321234e19, "123432123432123*****.000000" },
968 { 1.234321234321234e20, "123432123432123******.000000" },
969 { 1.234321234321234e21, "123432123432123*******.000000" },
970 { 1.234321234321234e22, "123432123432123********.000000" },
971 { 1.234321234321234e23, "123432123432123*********.000000" },
972 { 1.234321234321234e24, "123432123432123**********.000000" },
973 { 1.234321234321234e25, "123432123432123***********.000000" },
974 { 1.234321234321234e26, "123432123432123************.000000" },
975 { 1.234321234321234e27, "123432123432123*************.000000" },
976 { 1.234321234321234e28, "123432123432123**************.000000" },
977 { 1.234321234321234e29, "123432123432123***************.000000" },
978 { 1.234321234321234e30, "123432123432123****************.000000" },
979 { 1.234321234321234e31, "123432123432123*****************.000000" },
980 { 1.234321234321234e32, "123432123432123******************.000000" },
981 { 1.234321234321234e33, "123432123432123*******************.000000" },
982 { 1.234321234321234e34, "123432123432123********************.000000" },
983 { 1.234321234321234e35, "123432123432123*********************.000000" },
984 { 1.234321234321234e36, "123432123432123**********************.000000" }
985 };
986 size_t k;
987 for (k = 0; k < SIZEOF (data); k++)
988 {
989 size_t length;
990 char *result =
991 my_asnprintf (NULL, &length, "%f", data[k].value);
992 ASSERT (result != NULL);
993 ASSERT (strmatch (data[k].string, result));
994 ASSERT (length == strlen (result));
995 free (result);
996 }
997 }
998
999 { /* A negative number. */
1000 size_t length;
1001 char *result =
1002 my_asnprintf (NULL, &length, "%f %d", -0.03125, 33, 44, 55);
1003 ASSERT (result != NULL);
1004 ASSERT (strcmp (result, "-0.031250 33") == 0);
1005 ASSERT (length == strlen (result));
1006 free (result);
1007 }
1008
1009 { /* Positive zero. */
1010 size_t length;
1011 char *result =
1012 my_asnprintf (NULL, &length, "%f %d", 0.0, 33, 44, 55);
1013 ASSERT (result != NULL);
1014 ASSERT (strcmp (result, "0.000000 33") == 0);
1015 ASSERT (length == strlen (result));
1016 free (result);
1017 }
1018
1019 { /* Negative zero. */
1020 size_t length;
1021 char *result =
1022 my_asnprintf (NULL, &length, "%f %d", minus_zerod, 33, 44, 55);
1023 ASSERT (result != NULL);
1024 if (have_minus_zero ())
1025 ASSERT (strcmp (result, "-0.000000 33") == 0);
1026 ASSERT (length == strlen (result));
1027 free (result);
1028 }
1029
1030 { /* Positive infinity. */
1031 size_t length;
1032 char *result =
1033 my_asnprintf (NULL, &length, "%f %d", Infinityd (), 33, 44, 55);
1034 ASSERT (result != NULL);
1035 ASSERT (strcmp (result, "inf 33") == 0
1036 || strcmp (result, "infinity 33") == 0);
1037 ASSERT (length == strlen (result));
1038 free (result);
1039 }
1040
1041 { /* Negative infinity. */
1042 size_t length;
1043 char *result =
1044 my_asnprintf (NULL, &length, "%f %d", - Infinityd (), 33, 44, 55);
1045 ASSERT (result != NULL);
1046 ASSERT (strcmp (result, "-inf 33") == 0
1047 || strcmp (result, "-infinity 33") == 0);
1048 ASSERT (length == strlen (result));
1049 free (result);
1050 }
1051
1052 { /* NaN. */
1053 size_t length;
1054 char *result =
1055 my_asnprintf (NULL, &length, "%f %d", NaNd (), 33, 44, 55);
1056 ASSERT (result != NULL);
1057 ASSERT (strlen (result) >= 3 + 3
1058 && strisnan (result, 0, strlen (result) - 3, 0)
1059 && strcmp (result + strlen (result) - 3, " 33") == 0);
1060 ASSERT (length == strlen (result));
1061 free (result);
1062 }
1063
1064 { /* Width. */
1065 size_t length;
1066 char *result =
1067 my_asnprintf (NULL, &length, "%10f %d", 1.75, 33, 44, 55);
1068 ASSERT (result != NULL);
1069 ASSERT (strcmp (result, " 1.750000 33") == 0);
1070 ASSERT (length == strlen (result));
1071 free (result);
1072 }
1073
1074 { /* FLAG_LEFT. */
1075 size_t length;
1076 char *result =
1077 my_asnprintf (NULL, &length, "%-10f %d", 1.75, 33, 44, 55);
1078 ASSERT (result != NULL);
1079 ASSERT (strcmp (result, "1.750000 33") == 0);
1080 ASSERT (length == strlen (result));
1081 free (result);
1082 }
1083
1084 { /* FLAG_SHOWSIGN. */
1085 size_t length;
1086 char *result =
1087 my_asnprintf (NULL, &length, "%+f %d", 1.75, 33, 44, 55);
1088 ASSERT (result != NULL);
1089 ASSERT (strcmp (result, "+1.750000 33") == 0);
1090 ASSERT (length == strlen (result));
1091 free (result);
1092 }
1093
1094 { /* FLAG_SPACE. */
1095 size_t length;
1096 char *result =
1097 my_asnprintf (NULL, &length, "% f %d", 1.75, 33, 44, 55);
1098 ASSERT (result != NULL);
1099 ASSERT (strcmp (result, " 1.750000 33") == 0);
1100 ASSERT (length == strlen (result));
1101 free (result);
1102 }
1103
1104 { /* FLAG_ALT. */
1105 size_t length;
1106 char *result =
1107 my_asnprintf (NULL, &length, "%#f %d", 1.75, 33, 44, 55);
1108 ASSERT (result != NULL);
1109 ASSERT (strcmp (result, "1.750000 33") == 0);
1110 ASSERT (length == strlen (result));
1111 free (result);
1112 }
1113
1114 { /* FLAG_ALT. */
1115 size_t length;
1116 char *result =
1117 my_asnprintf (NULL, &length, "%#.f %d", 1.75, 33, 44, 55);
1118 ASSERT (result != NULL);
1119 ASSERT (strcmp (result, "2. 33") == 0);
1120 ASSERT (length == strlen (result));
1121 free (result);
1122 }
1123
1124 { /* FLAG_ZERO with finite number. */
1125 size_t length;
1126 char *result =
1127 my_asnprintf (NULL, &length, "%015f %d", 1234.0, 33, 44, 55);
1128 ASSERT (result != NULL);
1129 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1130 ASSERT (length == strlen (result));
1131 free (result);
1132 }
1133
1134 { /* FLAG_ZERO with infinite number. */
1135 size_t length;
1136 char *result =
1137 my_asnprintf (NULL, &length, "%015f %d", - Infinityd (), 33, 44, 55);
1138 ASSERT (result != NULL);
1139 ASSERT (strcmp (result, " -inf 33") == 0
1140 || strcmp (result, " -infinity 33") == 0);
1141 ASSERT (length == strlen (result));
1142 free (result);
1143 }
1144
1145 { /* FLAG_ZERO with NaN. */
1146 size_t length;
1147 char *result =
1148 my_asnprintf (NULL, &length, "%050f %d", NaNd (), 33, 44, 55);
1149 ASSERT (result != NULL);
1150 ASSERT (strlen (result) == 50 + 3
1151 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1152 && strcmp (result + strlen (result) - 3, " 33") == 0);
1153 ASSERT (length == strlen (result));
1154 free (result);
1155 }
1156
1157 { /* Precision. */
1158 size_t length;
1159 char *result =
1160 my_asnprintf (NULL, &length, "%.f %d", 1234.0, 33, 44, 55);
1161 ASSERT (result != NULL);
1162 ASSERT (strcmp (result, "1234 33") == 0);
1163 ASSERT (length == strlen (result));
1164 free (result);
1165 }
1166
1167 { /* Precision with no rounding. */
1168 size_t length;
1169 char *result =
1170 my_asnprintf (NULL, &length, "%.2f %d", 999.951, 33, 44, 55);
1171 ASSERT (result != NULL);
1172 ASSERT (strcmp (result, "999.95 33") == 0);
1173 ASSERT (length == strlen (result));
1174 free (result);
1175 }
1176
1177 { /* Precision with rounding. */
1178 size_t length;
1179 char *result =
1180 my_asnprintf (NULL, &length, "%.2f %d", 999.996, 33, 44, 55);
1181 ASSERT (result != NULL);
1182 ASSERT (strcmp (result, "1000.00 33") == 0);
1183 ASSERT (length == strlen (result));
1184 free (result);
1185 }
1186
1187 { /* A positive number. */
1188 size_t length;
1189 char *result =
1190 my_asnprintf (NULL, &length, "%Lf %d", 12.75L, 33, 44, 55);
1191 ASSERT (result != NULL);
1192 ASSERT (strcmp (result, "12.750000 33") == 0);
1193 ASSERT (length == strlen (result));
1194 free (result);
1195 }
1196
1197 { /* A larger positive number. */
1198 size_t length;
1199 char *result =
1200 my_asnprintf (NULL, &length, "%Lf %d", 1234567.0L, 33, 44, 55);
1201 ASSERT (result != NULL);
1202 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1203 ASSERT (length == strlen (result));
1204 free (result);
1205 }
1206
1207 { /* Small and large positive numbers. */
1208 static struct { long double value; const char *string; } data[] =
1209 {
1210 { 1.234321234321234e-37L, "0.000000" },
1211 { 1.234321234321234e-36L, "0.000000" },
1212 { 1.234321234321234e-35L, "0.000000" },
1213 { 1.234321234321234e-34L, "0.000000" },
1214 { 1.234321234321234e-33L, "0.000000" },
1215 { 1.234321234321234e-32L, "0.000000" },
1216 { 1.234321234321234e-31L, "0.000000" },
1217 { 1.234321234321234e-30L, "0.000000" },
1218 { 1.234321234321234e-29L, "0.000000" },
1219 { 1.234321234321234e-28L, "0.000000" },
1220 { 1.234321234321234e-27L, "0.000000" },
1221 { 1.234321234321234e-26L, "0.000000" },
1222 { 1.234321234321234e-25L, "0.000000" },
1223 { 1.234321234321234e-24L, "0.000000" },
1224 { 1.234321234321234e-23L, "0.000000" },
1225 { 1.234321234321234e-22L, "0.000000" },
1226 { 1.234321234321234e-21L, "0.000000" },
1227 { 1.234321234321234e-20L, "0.000000" },
1228 { 1.234321234321234e-19L, "0.000000" },
1229 { 1.234321234321234e-18L, "0.000000" },
1230 { 1.234321234321234e-17L, "0.000000" },
1231 { 1.234321234321234e-16L, "0.000000" },
1232 { 1.234321234321234e-15L, "0.000000" },
1233 { 1.234321234321234e-14L, "0.000000" },
1234 { 1.234321234321234e-13L, "0.000000" },
1235 { 1.234321234321234e-12L, "0.000000" },
1236 { 1.234321234321234e-11L, "0.000000" },
1237 { 1.234321234321234e-10L, "0.000000" },
1238 { 1.234321234321234e-9L, "0.000000" },
1239 { 1.234321234321234e-8L, "0.000000" },
1240 { 1.234321234321234e-7L, "0.000000" },
1241 { 1.234321234321234e-6L, "0.000001" },
1242 { 1.234321234321234e-5L, "0.000012" },
1243 { 1.234321234321234e-4L, "0.000123" },
1244 { 1.234321234321234e-3L, "0.001234" },
1245 { 1.234321234321234e-2L, "0.012343" },
1246 { 1.234321234321234e-1L, "0.123432" },
1247 { 1.234321234321234L, "1.234321" },
1248 { 1.234321234321234e1L, "12.343212" },
1249 { 1.234321234321234e2L, "123.432123" },
1250 { 1.234321234321234e3L, "1234.321234" },
1251 { 1.234321234321234e4L, "12343.212343" },
1252 { 1.234321234321234e5L, "123432.123432" },
1253 { 1.234321234321234e6L, "1234321.234321" },
1254 { 1.234321234321234e7L, "12343212.343212" },
1255 { 1.234321234321234e8L, "123432123.432123" },
1256 { 1.234321234321234e9L, "1234321234.321234" },
1257 { 1.234321234321234e10L, "12343212343.2123**" },
1258 { 1.234321234321234e11L, "123432123432.123***" },
1259 { 1.234321234321234e12L, "1234321234321.23****" },
1260 { 1.234321234321234e13L, "12343212343212.3*****" },
1261 { 1.234321234321234e14L, "123432123432123.******" },
1262 { 1.234321234321234e15L, "1234321234321234.000000" },
1263 { 1.234321234321234e16L, "123432123432123**.000000" },
1264 { 1.234321234321234e17L, "123432123432123***.000000" },
1265 { 1.234321234321234e18L, "123432123432123****.000000" },
1266 { 1.234321234321234e19L, "123432123432123*****.000000" },
1267 { 1.234321234321234e20L, "123432123432123******.000000" },
1268 { 1.234321234321234e21L, "123432123432123*******.000000" },
1269 { 1.234321234321234e22L, "123432123432123********.000000" },
1270 { 1.234321234321234e23L, "123432123432123*********.000000" },
1271 { 1.234321234321234e24L, "123432123432123**********.000000" },
1272 { 1.234321234321234e25L, "123432123432123***********.000000" },
1273 { 1.234321234321234e26L, "123432123432123************.000000" },
1274 { 1.234321234321234e27L, "123432123432123*************.000000" },
1275 { 1.234321234321234e28L, "123432123432123**************.000000" },
1276 { 1.234321234321234e29L, "123432123432123***************.000000" },
1277 { 1.234321234321234e30L, "123432123432123****************.000000" },
1278 { 1.234321234321234e31L, "123432123432123*****************.000000" },
1279 { 1.234321234321234e32L, "123432123432123******************.000000" },
1280 { 1.234321234321234e33L, "123432123432123*******************.000000" },
1281 { 1.234321234321234e34L, "123432123432123********************.000000" },
1282 { 1.234321234321234e35L, "123432123432123*********************.000000" },
1283 { 1.234321234321234e36L, "123432123432123**********************.000000" }
1284 };
1285 size_t k;
1286 for (k = 0; k < SIZEOF (data); k++)
1287 {
1288 size_t length;
1289 char *result =
1290 my_asnprintf (NULL, &length, "%Lf", data[k].value);
1291 ASSERT (result != NULL);
1292 ASSERT (strmatch (data[k].string, result));
1293 ASSERT (length == strlen (result));
1294 free (result);
1295 }
1296 }
1297
1298 { /* A negative number. */
1299 size_t length;
1300 char *result =
1301 my_asnprintf (NULL, &length, "%Lf %d", -0.03125L, 33, 44, 55);
1302 ASSERT (result != NULL);
1303 ASSERT (strcmp (result, "-0.031250 33") == 0);
1304 ASSERT (length == strlen (result));
1305 free (result);
1306 }
1307
1308 { /* Positive zero. */
1309 size_t length;
1310 char *result =
1311 my_asnprintf (NULL, &length, "%Lf %d", 0.0L, 33, 44, 55);
1312 ASSERT (result != NULL);
1313 ASSERT (strcmp (result, "0.000000 33") == 0);
1314 ASSERT (length == strlen (result));
1315 free (result);
1316 }
1317
1318 { /* Negative zero. */
1319 size_t length;
1320 char *result =
1321 my_asnprintf (NULL, &length, "%Lf %d", minus_zerol, 33, 44, 55);
1322 ASSERT (result != NULL);
1323 if (have_minus_zero ())
1324 ASSERT (strcmp (result, "-0.000000 33") == 0);
1325 ASSERT (length == strlen (result));
1326 free (result);
1327 }
1328
1329 { /* Positive infinity. */
1330 size_t length;
1331 char *result =
1332 my_asnprintf (NULL, &length, "%Lf %d", Infinityl (), 33, 44, 55);
1333 ASSERT (result != NULL);
1334 ASSERT (strcmp (result, "inf 33") == 0
1335 || strcmp (result, "infinity 33") == 0);
1336 ASSERT (length == strlen (result));
1337 free (result);
1338 }
1339
1340 { /* Negative infinity. */
1341 size_t length;
1342 char *result =
1343 my_asnprintf (NULL, &length, "%Lf %d", - Infinityl (), 33, 44, 55);
1344 ASSERT (result != NULL);
1345 ASSERT (strcmp (result, "-inf 33") == 0
1346 || strcmp (result, "-infinity 33") == 0);
1347 ASSERT (length == strlen (result));
1348 free (result);
1349 }
1350
1351 { /* NaN. */
1352 size_t length;
1353 char *result =
1354 my_asnprintf (NULL, &length, "%Lf %d", NaNl (), 33, 44, 55);
1355 ASSERT (result != NULL);
1356 ASSERT (strlen (result) >= 3 + 3
1357 && strisnan (result, 0, strlen (result) - 3, 0)
1358 && strcmp (result + strlen (result) - 3, " 33") == 0);
1359 ASSERT (length == strlen (result));
1360 free (result);
1361 }
1362 #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
1363 { /* Quiet NaN. */
1364 static union { unsigned int word[4]; long double value; } x =
1365 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
1366 size_t length;
1367 char *result =
1368 my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
1369 ASSERT (result != NULL);
1370 ASSERT (strlen (result) >= 3 + 3
1371 && strisnan (result, 0, strlen (result) - 3, 0)
1372 && strcmp (result + strlen (result) - 3, " 33") == 0);
1373 ASSERT (length == strlen (result));
1374 free (result);
1375 }
1376 {
1377 /* Signalling NaN. */
1378 static union { unsigned int word[4]; long double value; } x =
1379 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
1380 size_t length;
1381 char *result =
1382 my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
1383 ASSERT (result != NULL);
1384 ASSERT (strlen (result) >= 3 + 3
1385 && strisnan (result, 0, strlen (result) - 3, 0)
1386 && strcmp (result + strlen (result) - 3, " 33") == 0);
1387 ASSERT (length == strlen (result));
1388 free (result);
1389 }
1390 /* asnprintf should print something for noncanonical values. */
1391 { /* Pseudo-NaN. */
1392 static union { unsigned int word[4]; long double value; } x =
1393 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
1394 size_t length;
1395 char *result =
1396 my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
1397 ASSERT (result != NULL);
1398 ASSERT (length == strlen (result));
1399 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
1400 free (result);
1401 }
1402 { /* Pseudo-Infinity. */
1403 static union { unsigned int word[4]; long double value; } x =
1404 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
1405 size_t length;
1406 char *result =
1407 my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
1408 ASSERT (result != NULL);
1409 ASSERT (length == strlen (result));
1410 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
1411 free (result);
1412 }
1413 { /* Pseudo-Zero. */
1414 static union { unsigned int word[4]; long double value; } x =
1415 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
1416 size_t length;
1417 char *result =
1418 my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
1419 ASSERT (result != NULL);
1420 ASSERT (length == strlen (result));
1421 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
1422 free (result);
1423 }
1424 { /* Unnormalized number. */
1425 static union { unsigned int word[4]; long double value; } x =
1426 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
1427 size_t length;
1428 char *result =
1429 my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
1430 ASSERT (result != NULL);
1431 ASSERT (length == strlen (result));
1432 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
1433 free (result);
1434 }
1435 { /* Pseudo-Denormal. */
1436 static union { unsigned int word[4]; long double value; } x =
1437 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
1438 size_t length;
1439 char *result =
1440 my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
1441 ASSERT (result != NULL);
1442 ASSERT (length == strlen (result));
1443 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
1444 free (result);
1445 }
1446 #endif
1447
1448 { /* Width. */
1449 size_t length;
1450 char *result =
1451 my_asnprintf (NULL, &length, "%10Lf %d", 1.75L, 33, 44, 55);
1452 ASSERT (result != NULL);
1453 ASSERT (strcmp (result, " 1.750000 33") == 0);
1454 ASSERT (length == strlen (result));
1455 free (result);
1456 }
1457
1458 { /* FLAG_LEFT. */
1459 size_t length;
1460 char *result =
1461 my_asnprintf (NULL, &length, "%-10Lf %d", 1.75L, 33, 44, 55);
1462 ASSERT (result != NULL);
1463 ASSERT (strcmp (result, "1.750000 33") == 0);
1464 ASSERT (length == strlen (result));
1465 free (result);
1466 }
1467
1468 { /* FLAG_SHOWSIGN. */
1469 size_t length;
1470 char *result =
1471 my_asnprintf (NULL, &length, "%+Lf %d", 1.75L, 33, 44, 55);
1472 ASSERT (result != NULL);
1473 ASSERT (strcmp (result, "+1.750000 33") == 0);
1474 ASSERT (length == strlen (result));
1475 free (result);
1476 }
1477
1478 { /* FLAG_SPACE. */
1479 size_t length;
1480 char *result =
1481 my_asnprintf (NULL, &length, "% Lf %d", 1.75L, 33, 44, 55);
1482 ASSERT (result != NULL);
1483 ASSERT (strcmp (result, " 1.750000 33") == 0);
1484 ASSERT (length == strlen (result));
1485 free (result);
1486 }
1487
1488 { /* FLAG_ALT. */
1489 size_t length;
1490 char *result =
1491 my_asnprintf (NULL, &length, "%#Lf %d", 1.75L, 33, 44, 55);
1492 ASSERT (result != NULL);
1493 ASSERT (strcmp (result, "1.750000 33") == 0);
1494 ASSERT (length == strlen (result));
1495 free (result);
1496 }
1497
1498 { /* FLAG_ALT. */
1499 size_t length;
1500 char *result =
1501 my_asnprintf (NULL, &length, "%#.Lf %d", 1.75L, 33, 44, 55);
1502 ASSERT (result != NULL);
1503 ASSERT (strcmp (result, "2. 33") == 0);
1504 ASSERT (length == strlen (result));
1505 free (result);
1506 }
1507
1508 { /* FLAG_ZERO with finite number. */
1509 size_t length;
1510 char *result =
1511 my_asnprintf (NULL, &length, "%015Lf %d", 1234.0L, 33, 44, 55);
1512 ASSERT (result != NULL);
1513 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1514 ASSERT (length == strlen (result));
1515 free (result);
1516 }
1517
1518 { /* FLAG_ZERO with infinite number. */
1519 size_t length;
1520 char *result =
1521 my_asnprintf (NULL, &length, "%015Lf %d", - Infinityl (), 33, 44, 55);
1522 ASSERT (result != NULL);
1523 ASSERT (strcmp (result, " -inf 33") == 0
1524 || strcmp (result, " -infinity 33") == 0);
1525 ASSERT (length == strlen (result));
1526 free (result);
1527 }
1528
1529 { /* FLAG_ZERO with NaN. */
1530 size_t length;
1531 char *result =
1532 my_asnprintf (NULL, &length, "%050Lf %d", NaNl (), 33, 44, 55);
1533 ASSERT (result != NULL);
1534 ASSERT (strlen (result) == 50 + 3
1535 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1536 && strcmp (result + strlen (result) - 3, " 33") == 0);
1537 ASSERT (length == strlen (result));
1538 free (result);
1539 }
1540
1541 { /* Precision. */
1542 size_t length;
1543 char *result =
1544 my_asnprintf (NULL, &length, "%.Lf %d", 1234.0L, 33, 44, 55);
1545 ASSERT (result != NULL);
1546 ASSERT (strcmp (result, "1234 33") == 0);
1547 ASSERT (length == strlen (result));
1548 free (result);
1549 }
1550
1551 { /* Precision with no rounding. */
1552 size_t length;
1553 char *result =
1554 my_asnprintf (NULL, &length, "%.2Lf %d", 999.951L, 33, 44, 55);
1555 ASSERT (result != NULL);
1556 ASSERT (strcmp (result, "999.95 33") == 0);
1557 ASSERT (length == strlen (result));
1558 free (result);
1559 }
1560
1561 { /* Precision with rounding. */
1562 size_t length;
1563 char *result =
1564 my_asnprintf (NULL, &length, "%.2Lf %d", 999.996L, 33, 44, 55);
1565 ASSERT (result != NULL);
1566 ASSERT (strcmp (result, "1000.00 33") == 0);
1567 ASSERT (length == strlen (result));
1568 free (result);
1569 }
1570
1571 /* Test the support of the %F format directive. */
1572
1573 { /* A positive number. */
1574 size_t length;
1575 char *result =
1576 my_asnprintf (NULL, &length, "%F %d", 12.75, 33, 44, 55);
1577 ASSERT (result != NULL);
1578 ASSERT (strcmp (result, "12.750000 33") == 0);
1579 ASSERT (length == strlen (result));
1580 free (result);
1581 }
1582
1583 { /* A larger positive number. */
1584 size_t length;
1585 char *result =
1586 my_asnprintf (NULL, &length, "%F %d", 1234567.0, 33, 44, 55);
1587 ASSERT (result != NULL);
1588 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1589 ASSERT (length == strlen (result));
1590 free (result);
1591 }
1592
1593 { /* A negative number. */
1594 size_t length;
1595 char *result =
1596 my_asnprintf (NULL, &length, "%F %d", -0.03125, 33, 44, 55);
1597 ASSERT (result != NULL);
1598 ASSERT (strcmp (result, "-0.031250 33") == 0);
1599 ASSERT (length == strlen (result));
1600 free (result);
1601 }
1602
1603 { /* Positive zero. */
1604 size_t length;
1605 char *result =
1606 my_asnprintf (NULL, &length, "%F %d", 0.0, 33, 44, 55);
1607 ASSERT (result != NULL);
1608 ASSERT (strcmp (result, "0.000000 33") == 0);
1609 ASSERT (length == strlen (result));
1610 free (result);
1611 }
1612
1613 { /* Negative zero. */
1614 size_t length;
1615 char *result =
1616 my_asnprintf (NULL, &length, "%F %d", minus_zerod, 33, 44, 55);
1617 ASSERT (result != NULL);
1618 if (have_minus_zero ())
1619 ASSERT (strcmp (result, "-0.000000 33") == 0);
1620 ASSERT (length == strlen (result));
1621 free (result);
1622 }
1623
1624 { /* Positive infinity. */
1625 size_t length;
1626 char *result =
1627 my_asnprintf (NULL, &length, "%F %d", Infinityd (), 33, 44, 55);
1628 ASSERT (result != NULL);
1629 ASSERT (strcmp (result, "INF 33") == 0
1630 || strcmp (result, "INFINITY 33") == 0);
1631 ASSERT (length == strlen (result));
1632 free (result);
1633 }
1634
1635 { /* Negative infinity. */
1636 size_t length;
1637 char *result =
1638 my_asnprintf (NULL, &length, "%F %d", - Infinityd (), 33, 44, 55);
1639 ASSERT (result != NULL);
1640 ASSERT (strcmp (result, "-INF 33") == 0
1641 || strcmp (result, "-INFINITY 33") == 0);
1642 ASSERT (length == strlen (result));
1643 free (result);
1644 }
1645
1646 { /* NaN. */
1647 size_t length;
1648 char *result =
1649 my_asnprintf (NULL, &length, "%F %d", NaNd (), 33, 44, 55);
1650 ASSERT (result != NULL);
1651 ASSERT (strlen (result) >= 3 + 3
1652 && strisnan (result, 0, strlen (result) - 3, 1)
1653 && strcmp (result + strlen (result) - 3, " 33") == 0);
1654 ASSERT (length == strlen (result));
1655 free (result);
1656 }
1657
1658 { /* FLAG_ZERO. */
1659 size_t length;
1660 char *result =
1661 my_asnprintf (NULL, &length, "%015F %d", 1234.0, 33, 44, 55);
1662 ASSERT (result != NULL);
1663 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1664 ASSERT (length == strlen (result));
1665 free (result);
1666 }
1667
1668 { /* FLAG_ZERO with infinite number. */
1669 size_t length;
1670 char *result =
1671 my_asnprintf (NULL, &length, "%015F %d", - Infinityd (), 33, 44, 55);
1672 ASSERT (result != NULL);
1673 ASSERT (strcmp (result, " -INF 33") == 0
1674 || strcmp (result, " -INFINITY 33") == 0);
1675 ASSERT (length == strlen (result));
1676 free (result);
1677 }
1678
1679 { /* Precision. */
1680 size_t length;
1681 char *result =
1682 my_asnprintf (NULL, &length, "%.F %d", 1234.0, 33, 44, 55);
1683 ASSERT (result != NULL);
1684 ASSERT (strcmp (result, "1234 33") == 0);
1685 ASSERT (length == strlen (result));
1686 free (result);
1687 }
1688
1689 { /* Precision with no rounding. */
1690 size_t length;
1691 char *result =
1692 my_asnprintf (NULL, &length, "%.2F %d", 999.951, 33, 44, 55);
1693 ASSERT (result != NULL);
1694 ASSERT (strcmp (result, "999.95 33") == 0);
1695 ASSERT (length == strlen (result));
1696 free (result);
1697 }
1698
1699 { /* Precision with rounding. */
1700 size_t length;
1701 char *result =
1702 my_asnprintf (NULL, &length, "%.2F %d", 999.996, 33, 44, 55);
1703 ASSERT (result != NULL);
1704 ASSERT (strcmp (result, "1000.00 33") == 0);
1705 ASSERT (length == strlen (result));
1706 free (result);
1707 }
1708
1709 { /* A positive number. */
1710 size_t length;
1711 char *result =
1712 my_asnprintf (NULL, &length, "%LF %d", 12.75L, 33, 44, 55);
1713 ASSERT (result != NULL);
1714 ASSERT (strcmp (result, "12.750000 33") == 0);
1715 ASSERT (length == strlen (result));
1716 free (result);
1717 }
1718
1719 { /* A larger positive number. */
1720 size_t length;
1721 char *result =
1722 my_asnprintf (NULL, &length, "%LF %d", 1234567.0L, 33, 44, 55);
1723 ASSERT (result != NULL);
1724 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1725 ASSERT (length == strlen (result));
1726 free (result);
1727 }
1728
1729 { /* A negative number. */
1730 size_t length;
1731 char *result =
1732 my_asnprintf (NULL, &length, "%LF %d", -0.03125L, 33, 44, 55);
1733 ASSERT (result != NULL);
1734 ASSERT (strcmp (result, "-0.031250 33") == 0);
1735 ASSERT (length == strlen (result));
1736 free (result);
1737 }
1738
1739 { /* Positive zero. */
1740 size_t length;
1741 char *result =
1742 my_asnprintf (NULL, &length, "%LF %d", 0.0L, 33, 44, 55);
1743 ASSERT (result != NULL);
1744 ASSERT (strcmp (result, "0.000000 33") == 0);
1745 ASSERT (length == strlen (result));
1746 free (result);
1747 }
1748
1749 { /* Negative zero. */
1750 size_t length;
1751 char *result =
1752 my_asnprintf (NULL, &length, "%LF %d", minus_zerol, 33, 44, 55);
1753 ASSERT (result != NULL);
1754 if (have_minus_zero ())
1755 ASSERT (strcmp (result, "-0.000000 33") == 0);
1756 ASSERT (length == strlen (result));
1757 free (result);
1758 }
1759
1760 { /* Positive infinity. */
1761 size_t length;
1762 char *result =
1763 my_asnprintf (NULL, &length, "%LF %d", Infinityl (), 33, 44, 55);
1764 ASSERT (result != NULL);
1765 ASSERT (strcmp (result, "INF 33") == 0
1766 || strcmp (result, "INFINITY 33") == 0);
1767 ASSERT (length == strlen (result));
1768 free (result);
1769 }
1770
1771 { /* Negative infinity. */
1772 size_t length;
1773 char *result =
1774 my_asnprintf (NULL, &length, "%LF %d", - Infinityl (), 33, 44, 55);
1775 ASSERT (result != NULL);
1776 ASSERT (strcmp (result, "-INF 33") == 0
1777 || strcmp (result, "-INFINITY 33") == 0);
1778 ASSERT (length == strlen (result));
1779 free (result);
1780 }
1781
1782 { /* NaN. */
1783 size_t length;
1784 char *result =
1785 my_asnprintf (NULL, &length, "%LF %d", NaNl (), 33, 44, 55);
1786 ASSERT (result != NULL);
1787 ASSERT (strlen (result) >= 3 + 3
1788 && strisnan (result, 0, strlen (result) - 3, 1)
1789 && strcmp (result + strlen (result) - 3, " 33") == 0);
1790 ASSERT (length == strlen (result));
1791 free (result);
1792 }
1793
1794 { /* FLAG_ZERO. */
1795 size_t length;
1796 char *result =
1797 my_asnprintf (NULL, &length, "%015LF %d", 1234.0L, 33, 44, 55);
1798 ASSERT (result != NULL);
1799 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1800 ASSERT (length == strlen (result));
1801 free (result);
1802 }
1803
1804 { /* FLAG_ZERO with infinite number. */
1805 size_t length;
1806 char *result =
1807 my_asnprintf (NULL, &length, "%015LF %d", - Infinityl (), 33, 44, 55);
1808 ASSERT (result != NULL);
1809 ASSERT (strcmp (result, " -INF 33") == 0
1810 || strcmp (result, " -INFINITY 33") == 0);
1811 ASSERT (length == strlen (result));
1812 free (result);
1813 }
1814
1815 { /* Precision. */
1816 size_t length;
1817 char *result =
1818 my_asnprintf (NULL, &length, "%.LF %d", 1234.0L, 33, 44, 55);
1819 ASSERT (result != NULL);
1820 ASSERT (strcmp (result, "1234 33") == 0);
1821 ASSERT (length == strlen (result));
1822 free (result);
1823 }
1824
1825 { /* Precision with no rounding. */
1826 size_t length;
1827 char *result =
1828 my_asnprintf (NULL, &length, "%.2LF %d", 999.951L, 33, 44, 55);
1829 ASSERT (result != NULL);
1830 ASSERT (strcmp (result, "999.95 33") == 0);
1831 ASSERT (length == strlen (result));
1832 free (result);
1833 }
1834
1835 { /* Precision with rounding. */
1836 size_t length;
1837 char *result =
1838 my_asnprintf (NULL, &length, "%.2LF %d", 999.996L, 33, 44, 55);
1839 ASSERT (result != NULL);
1840 ASSERT (strcmp (result, "1000.00 33") == 0);
1841 ASSERT (length == strlen (result));
1842 free (result);
1843 }
1844
1845 /* Test the support of the %e format directive. */
1846
1847 { /* A positive number. */
1848 size_t length;
1849 char *result =
1850 my_asnprintf (NULL, &length, "%e %d", 12.75, 33, 44, 55);
1851 ASSERT (result != NULL);
1852 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1853 || strcmp (result, "1.275000e+001 33") == 0);
1854 ASSERT (length == strlen (result));
1855 free (result);
1856 }
1857
1858 { /* A larger positive number. */
1859 size_t length;
1860 char *result =
1861 my_asnprintf (NULL, &length, "%e %d", 1234567.0, 33, 44, 55);
1862 ASSERT (result != NULL);
1863 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1864 || strcmp (result, "1.234567e+006 33") == 0);
1865 ASSERT (length == strlen (result));
1866 free (result);
1867 }
1868
1869 { /* Small and large positive numbers. */
1870 static struct { double value; const char *string; } data[] =
1871 {
1872 { 1.234321234321234e-37, "1.234321e-37" },
1873 { 1.234321234321234e-36, "1.234321e-36" },
1874 { 1.234321234321234e-35, "1.234321e-35" },
1875 { 1.234321234321234e-34, "1.234321e-34" },
1876 { 1.234321234321234e-33, "1.234321e-33" },
1877 { 1.234321234321234e-32, "1.234321e-32" },
1878 { 1.234321234321234e-31, "1.234321e-31" },
1879 { 1.234321234321234e-30, "1.234321e-30" },
1880 { 1.234321234321234e-29, "1.234321e-29" },
1881 { 1.234321234321234e-28, "1.234321e-28" },
1882 { 1.234321234321234e-27, "1.234321e-27" },
1883 { 1.234321234321234e-26, "1.234321e-26" },
1884 { 1.234321234321234e-25, "1.234321e-25" },
1885 { 1.234321234321234e-24, "1.234321e-24" },
1886 { 1.234321234321234e-23, "1.234321e-23" },
1887 { 1.234321234321234e-22, "1.234321e-22" },
1888 { 1.234321234321234e-21, "1.234321e-21" },
1889 { 1.234321234321234e-20, "1.234321e-20" },
1890 { 1.234321234321234e-19, "1.234321e-19" },
1891 { 1.234321234321234e-18, "1.234321e-18" },
1892 { 1.234321234321234e-17, "1.234321e-17" },
1893 { 1.234321234321234e-16, "1.234321e-16" },
1894 { 1.234321234321234e-15, "1.234321e-15" },
1895 { 1.234321234321234e-14, "1.234321e-14" },
1896 { 1.234321234321234e-13, "1.234321e-13" },
1897 { 1.234321234321234e-12, "1.234321e-12" },
1898 { 1.234321234321234e-11, "1.234321e-11" },
1899 { 1.234321234321234e-10, "1.234321e-10" },
1900 { 1.234321234321234e-9, "1.234321e-09" },
1901 { 1.234321234321234e-8, "1.234321e-08" },
1902 { 1.234321234321234e-7, "1.234321e-07" },
1903 { 1.234321234321234e-6, "1.234321e-06" },
1904 { 1.234321234321234e-5, "1.234321e-05" },
1905 { 1.234321234321234e-4, "1.234321e-04" },
1906 { 1.234321234321234e-3, "1.234321e-03" },
1907 { 1.234321234321234e-2, "1.234321e-02" },
1908 { 1.234321234321234e-1, "1.234321e-01" },
1909 { 1.234321234321234, "1.234321e+00" },
1910 { 1.234321234321234e1, "1.234321e+01" },
1911 { 1.234321234321234e2, "1.234321e+02" },
1912 { 1.234321234321234e3, "1.234321e+03" },
1913 { 1.234321234321234e4, "1.234321e+04" },
1914 { 1.234321234321234e5, "1.234321e+05" },
1915 { 1.234321234321234e6, "1.234321e+06" },
1916 { 1.234321234321234e7, "1.234321e+07" },
1917 { 1.234321234321234e8, "1.234321e+08" },
1918 { 1.234321234321234e9, "1.234321e+09" },
1919 { 1.234321234321234e10, "1.234321e+10" },
1920 { 1.234321234321234e11, "1.234321e+11" },
1921 { 1.234321234321234e12, "1.234321e+12" },
1922 { 1.234321234321234e13, "1.234321e+13" },
1923 { 1.234321234321234e14, "1.234321e+14" },
1924 { 1.234321234321234e15, "1.234321e+15" },
1925 { 1.234321234321234e16, "1.234321e+16" },
1926 { 1.234321234321234e17, "1.234321e+17" },
1927 { 1.234321234321234e18, "1.234321e+18" },
1928 { 1.234321234321234e19, "1.234321e+19" },
1929 { 1.234321234321234e20, "1.234321e+20" },
1930 { 1.234321234321234e21, "1.234321e+21" },
1931 { 1.234321234321234e22, "1.234321e+22" },
1932 { 1.234321234321234e23, "1.234321e+23" },
1933 { 1.234321234321234e24, "1.234321e+24" },
1934 { 1.234321234321234e25, "1.234321e+25" },
1935 { 1.234321234321234e26, "1.234321e+26" },
1936 { 1.234321234321234e27, "1.234321e+27" },
1937 { 1.234321234321234e28, "1.234321e+28" },
1938 { 1.234321234321234e29, "1.234321e+29" },
1939 { 1.234321234321234e30, "1.234321e+30" },
1940 { 1.234321234321234e31, "1.234321e+31" },
1941 { 1.234321234321234e32, "1.234321e+32" },
1942 { 1.234321234321234e33, "1.234321e+33" },
1943 { 1.234321234321234e34, "1.234321e+34" },
1944 { 1.234321234321234e35, "1.234321e+35" },
1945 { 1.234321234321234e36, "1.234321e+36" }
1946 };
1947 size_t k;
1948 for (k = 0; k < SIZEOF (data); k++)
1949 {
1950 size_t length;
1951 char *result =
1952 my_asnprintf (NULL, &length, "%e", data[k].value);
1953 const char *expected = data[k].string;
1954 ASSERT (result != NULL);
1955 ASSERT (strcmp (result, expected) == 0
1956 /* Some implementations produce exponents with 3 digits. */
1957 || (strlen (result) == strlen (expected) + 1
1958 && memcmp (result, expected, strlen (expected) - 2) == 0
1959 && result[strlen (expected) - 2] == '0'
1960 && strcmp (result + strlen (expected) - 1,
1961 expected + strlen (expected) - 2)
1962 == 0));
1963 ASSERT (length == strlen (result));
1964 free (result);
1965 }
1966 }
1967
1968 { /* A negative number. */
1969 size_t length;
1970 char *result =
1971 my_asnprintf (NULL, &length, "%e %d", -0.03125, 33, 44, 55);
1972 ASSERT (result != NULL);
1973 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
1974 || strcmp (result, "-3.125000e-002 33") == 0);
1975 ASSERT (length == strlen (result));
1976 free (result);
1977 }
1978
1979 { /* Positive zero. */
1980 size_t length;
1981 char *result =
1982 my_asnprintf (NULL, &length, "%e %d", 0.0, 33, 44, 55);
1983 ASSERT (result != NULL);
1984 ASSERT (strcmp (result, "0.000000e+00 33") == 0
1985 || strcmp (result, "0.000000e+000 33") == 0);
1986 ASSERT (length == strlen (result));
1987 free (result);
1988 }
1989
1990 { /* Negative zero. */
1991 size_t length;
1992 char *result =
1993 my_asnprintf (NULL, &length, "%e %d", minus_zerod, 33, 44, 55);
1994 ASSERT (result != NULL);
1995 if (have_minus_zero ())
1996 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
1997 || strcmp (result, "-0.000000e+000 33") == 0);
1998 ASSERT (length == strlen (result));
1999 free (result);
2000 }
2001
2002 { /* Positive infinity. */
2003 size_t length;
2004 char *result =
2005 my_asnprintf (NULL, &length, "%e %d", Infinityd (), 33, 44, 55);
2006 ASSERT (result != NULL);
2007 ASSERT (strcmp (result, "inf 33") == 0
2008 || strcmp (result, "infinity 33") == 0);
2009 ASSERT (length == strlen (result));
2010 free (result);
2011 }
2012
2013 { /* Negative infinity. */
2014 size_t length;
2015 char *result =
2016 my_asnprintf (NULL, &length, "%e %d", - Infinityd (), 33, 44, 55);
2017 ASSERT (result != NULL);
2018 ASSERT (strcmp (result, "-inf 33") == 0
2019 || strcmp (result, "-infinity 33") == 0);
2020 ASSERT (length == strlen (result));
2021 free (result);
2022 }
2023
2024 { /* NaN. */
2025 size_t length;
2026 char *result =
2027 my_asnprintf (NULL, &length, "%e %d", NaNd (), 33, 44, 55);
2028 ASSERT (result != NULL);
2029 ASSERT (strlen (result) >= 3 + 3
2030 && strisnan (result, 0, strlen (result) - 3, 0)
2031 && strcmp (result + strlen (result) - 3, " 33") == 0);
2032 ASSERT (length == strlen (result));
2033 free (result);
2034 }
2035
2036 { /* Width. */
2037 size_t length;
2038 char *result =
2039 my_asnprintf (NULL, &length, "%15e %d", 1.75, 33, 44, 55);
2040 ASSERT (result != NULL);
2041 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2042 || strcmp (result, " 1.750000e+000 33") == 0);
2043 ASSERT (length == strlen (result));
2044 free (result);
2045 }
2046
2047 { /* FLAG_LEFT. */
2048 size_t length;
2049 char *result =
2050 my_asnprintf (NULL, &length, "%-15e %d", 1.75, 33, 44, 55);
2051 ASSERT (result != NULL);
2052 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2053 || strcmp (result, "1.750000e+000 33") == 0);
2054 ASSERT (length == strlen (result));
2055 free (result);
2056 }
2057
2058 { /* FLAG_SHOWSIGN. */
2059 size_t length;
2060 char *result =
2061 my_asnprintf (NULL, &length, "%+e %d", 1.75, 33, 44, 55);
2062 ASSERT (result != NULL);
2063 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
2064 || strcmp (result, "+1.750000e+000 33") == 0);
2065 ASSERT (length == strlen (result));
2066 free (result);
2067 }
2068
2069 { /* FLAG_SPACE. */
2070 size_t length;
2071 char *result =
2072 my_asnprintf (NULL, &length, "% e %d", 1.75, 33, 44, 55);
2073 ASSERT (result != NULL);
2074 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2075 || strcmp (result, " 1.750000e+000 33") == 0);
2076 ASSERT (length == strlen (result));
2077 free (result);
2078 }
2079
2080 { /* FLAG_ALT. */
2081 size_t length;
2082 char *result =
2083 my_asnprintf (NULL, &length, "%#e %d", 1.75, 33, 44, 55);
2084 ASSERT (result != NULL);
2085 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2086 || strcmp (result, "1.750000e+000 33") == 0);
2087 ASSERT (length == strlen (result));
2088 free (result);
2089 }
2090
2091 { /* FLAG_ALT. */
2092 size_t length;
2093 char *result =
2094 my_asnprintf (NULL, &length, "%#.e %d", 1.75, 33, 44, 55);
2095 ASSERT (result != NULL);
2096 ASSERT (strcmp (result, "2.e+00 33") == 0
2097 || strcmp (result, "2.e+000 33") == 0);
2098 ASSERT (length == strlen (result));
2099 free (result);
2100 }
2101
2102 { /* FLAG_ALT. */
2103 size_t length;
2104 char *result =
2105 my_asnprintf (NULL, &length, "%#.e %d", 9.75, 33, 44, 55);
2106 ASSERT (result != NULL);
2107 ASSERT (strcmp (result, "1.e+01 33") == 0
2108 || strcmp (result, "1.e+001 33") == 0);
2109 ASSERT (length == strlen (result));
2110 free (result);
2111 }
2112
2113 { /* FLAG_ZERO with finite number. */
2114 size_t length;
2115 char *result =
2116 my_asnprintf (NULL, &length, "%015e %d", 1234.0, 33, 44, 55);
2117 ASSERT (result != NULL);
2118 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
2119 || strcmp (result, "001.234000e+003 33") == 0);
2120 ASSERT (length == strlen (result));
2121 free (result);
2122 }
2123
2124 { /* FLAG_ZERO with infinite number. */
2125 size_t length;
2126 char *result =
2127 my_asnprintf (NULL, &length, "%015e %d", - Infinityd (), 33, 44, 55);
2128 ASSERT (result != NULL);
2129 ASSERT (strcmp (result, " -inf 33") == 0
2130 || strcmp (result, " -infinity 33") == 0);
2131 ASSERT (length == strlen (result));
2132 free (result);
2133 }
2134
2135 { /* FLAG_ZERO with NaN. */
2136 size_t length;
2137 char *result =
2138 my_asnprintf (NULL, &length, "%050e %d", NaNd (), 33, 44, 55);
2139 ASSERT (result != NULL);
2140 ASSERT (strlen (result) == 50 + 3
2141 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2142 && strcmp (result + strlen (result) - 3, " 33") == 0);
2143 ASSERT (length == strlen (result));
2144 free (result);
2145 }
2146
2147 { /* Precision. */
2148 size_t length;
2149 char *result =
2150 my_asnprintf (NULL, &length, "%.e %d", 1234.0, 33, 44, 55);
2151 ASSERT (result != NULL);
2152 ASSERT (strcmp (result, "1e+03 33") == 0
2153 || strcmp (result, "1e+003 33") == 0);
2154 ASSERT (length == strlen (result));
2155 free (result);
2156 }
2157
2158 { /* Precision with no rounding. */
2159 size_t length;
2160 char *result =
2161 my_asnprintf (NULL, &length, "%.4e %d", 999.951, 33, 44, 55);
2162 ASSERT (result != NULL);
2163 ASSERT (strcmp (result, "9.9995e+02 33") == 0
2164 || strcmp (result, "9.9995e+002 33") == 0);
2165 ASSERT (length == strlen (result));
2166 free (result);
2167 }
2168
2169 { /* Precision with rounding. */
2170 size_t length;
2171 char *result =
2172 my_asnprintf (NULL, &length, "%.4e %d", 999.996, 33, 44, 55);
2173 ASSERT (result != NULL);
2174 ASSERT (strcmp (result, "1.0000e+03 33") == 0
2175 || strcmp (result, "1.0000e+003 33") == 0);
2176 ASSERT (length == strlen (result));
2177 free (result);
2178 }
2179
2180 { /* A positive number. */
2181 size_t length;
2182 char *result =
2183 my_asnprintf (NULL, &length, "%Le %d", 12.75L, 33, 44, 55);
2184 ASSERT (result != NULL);
2185 ASSERT (strcmp (result, "1.275000e+01 33") == 0
2186 || strcmp (result, "1.275000e+001 33") == 0);
2187 ASSERT (length == strlen (result));
2188 free (result);
2189 }
2190
2191 { /* A larger positive number. */
2192 size_t length;
2193 char *result =
2194 my_asnprintf (NULL, &length, "%Le %d", 1234567.0L, 33, 44, 55);
2195 ASSERT (result != NULL);
2196 ASSERT (strcmp (result, "1.234567e+06 33") == 0
2197 || strcmp (result, "1.234567e+006 33") == 0);
2198 ASSERT (length == strlen (result));
2199 free (result);
2200 }
2201
2202 { /* Small and large positive numbers. */
2203 static struct { long double value; const char *string; } data[] =
2204 {
2205 { 1.234321234321234e-37L, "1.234321e-37" },
2206 { 1.234321234321234e-36L, "1.234321e-36" },
2207 { 1.234321234321234e-35L, "1.234321e-35" },
2208 { 1.234321234321234e-34L, "1.234321e-34" },
2209 { 1.234321234321234e-33L, "1.234321e-33" },
2210 { 1.234321234321234e-32L, "1.234321e-32" },
2211 { 1.234321234321234e-31L, "1.234321e-31" },
2212 { 1.234321234321234e-30L, "1.234321e-30" },
2213 { 1.234321234321234e-29L, "1.234321e-29" },
2214 { 1.234321234321234e-28L, "1.234321e-28" },
2215 { 1.234321234321234e-27L, "1.234321e-27" },
2216 { 1.234321234321234e-26L, "1.234321e-26" },
2217 { 1.234321234321234e-25L, "1.234321e-25" },
2218 { 1.234321234321234e-24L, "1.234321e-24" },
2219 { 1.234321234321234e-23L, "1.234321e-23" },
2220 { 1.234321234321234e-22L, "1.234321e-22" },
2221 { 1.234321234321234e-21L, "1.234321e-21" },
2222 { 1.234321234321234e-20L, "1.234321e-20" },
2223 { 1.234321234321234e-19L, "1.234321e-19" },
2224 { 1.234321234321234e-18L, "1.234321e-18" },
2225 { 1.234321234321234e-17L, "1.234321e-17" },
2226 { 1.234321234321234e-16L, "1.234321e-16" },
2227 { 1.234321234321234e-15L, "1.234321e-15" },
2228 { 1.234321234321234e-14L, "1.234321e-14" },
2229 { 1.234321234321234e-13L, "1.234321e-13" },
2230 { 1.234321234321234e-12L, "1.234321e-12" },
2231 { 1.234321234321234e-11L, "1.234321e-11" },
2232 { 1.234321234321234e-10L, "1.234321e-10" },
2233 { 1.234321234321234e-9L, "1.234321e-09" },
2234 { 1.234321234321234e-8L, "1.234321e-08" },
2235 { 1.234321234321234e-7L, "1.234321e-07" },
2236 { 1.234321234321234e-6L, "1.234321e-06" },
2237 { 1.234321234321234e-5L, "1.234321e-05" },
2238 { 1.234321234321234e-4L, "1.234321e-04" },
2239 { 1.234321234321234e-3L, "1.234321e-03" },
2240 { 1.234321234321234e-2L, "1.234321e-02" },
2241 { 1.234321234321234e-1L, "1.234321e-01" },
2242 { 1.234321234321234L, "1.234321e+00" },
2243 { 1.234321234321234e1L, "1.234321e+01" },
2244 { 1.234321234321234e2L, "1.234321e+02" },
2245 { 1.234321234321234e3L, "1.234321e+03" },
2246 { 1.234321234321234e4L, "1.234321e+04" },
2247 { 1.234321234321234e5L, "1.234321e+05" },
2248 { 1.234321234321234e6L, "1.234321e+06" },
2249 { 1.234321234321234e7L, "1.234321e+07" },
2250 { 1.234321234321234e8L, "1.234321e+08" },
2251 { 1.234321234321234e9L, "1.234321e+09" },
2252 { 1.234321234321234e10L, "1.234321e+10" },
2253 { 1.234321234321234e11L, "1.234321e+11" },
2254 { 1.234321234321234e12L, "1.234321e+12" },
2255 { 1.234321234321234e13L, "1.234321e+13" },
2256 { 1.234321234321234e14L, "1.234321e+14" },
2257 { 1.234321234321234e15L, "1.234321e+15" },
2258 { 1.234321234321234e16L, "1.234321e+16" },
2259 { 1.234321234321234e17L, "1.234321e+17" },
2260 { 1.234321234321234e18L, "1.234321e+18" },
2261 { 1.234321234321234e19L, "1.234321e+19" },
2262 { 1.234321234321234e20L, "1.234321e+20" },
2263 { 1.234321234321234e21L, "1.234321e+21" },
2264 { 1.234321234321234e22L, "1.234321e+22" },
2265 { 1.234321234321234e23L, "1.234321e+23" },
2266 { 1.234321234321234e24L, "1.234321e+24" },
2267 { 1.234321234321234e25L, "1.234321e+25" },
2268 { 1.234321234321234e26L, "1.234321e+26" },
2269 { 1.234321234321234e27L, "1.234321e+27" },
2270 { 1.234321234321234e28L, "1.234321e+28" },
2271 { 1.234321234321234e29L, "1.234321e+29" },
2272 { 1.234321234321234e30L, "1.234321e+30" },
2273 { 1.234321234321234e31L, "1.234321e+31" },
2274 { 1.234321234321234e32L, "1.234321e+32" },
2275 { 1.234321234321234e33L, "1.234321e+33" },
2276 { 1.234321234321234e34L, "1.234321e+34" },
2277 { 1.234321234321234e35L, "1.234321e+35" },
2278 { 1.234321234321234e36L, "1.234321e+36" }
2279 };
2280 size_t k;
2281 for (k = 0; k < SIZEOF (data); k++)
2282 {
2283 size_t length;
2284 char *result =
2285 my_asnprintf (NULL, &length, "%Le", data[k].value);
2286 const char *expected = data[k].string;
2287 ASSERT (result != NULL);
2288 ASSERT (strcmp (result, expected) == 0
2289 /* Some implementations produce exponents with 3 digits. */
2290 || (strlen (result) == strlen (expected) + 1
2291 && memcmp (result, expected, strlen (expected) - 2) == 0
2292 && result[strlen (expected) - 2] == '0'
2293 && strcmp (result + strlen (expected) - 1,
2294 expected + strlen (expected) - 2)
2295 == 0));
2296 ASSERT (length == strlen (result));
2297 free (result);
2298 }
2299 }
2300
2301 { /* A negative number. */
2302 size_t length;
2303 char *result =
2304 my_asnprintf (NULL, &length, "%Le %d", -0.03125L, 33, 44, 55);
2305 ASSERT (result != NULL);
2306 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
2307 || strcmp (result, "-3.125000e-002 33") == 0);
2308 ASSERT (length == strlen (result));
2309 free (result);
2310 }
2311
2312 { /* Positive zero. */
2313 size_t length;
2314 char *result =
2315 my_asnprintf (NULL, &length, "%Le %d", 0.0L, 33, 44, 55);
2316 ASSERT (result != NULL);
2317 ASSERT (strcmp (result, "0.000000e+00 33") == 0
2318 || strcmp (result, "0.000000e+000 33") == 0);
2319 ASSERT (length == strlen (result));
2320 free (result);
2321 }
2322
2323 { /* Negative zero. */
2324 size_t length;
2325 char *result =
2326 my_asnprintf (NULL, &length, "%Le %d", minus_zerol, 33, 44, 55);
2327 ASSERT (result != NULL);
2328 if (have_minus_zero ())
2329 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
2330 || strcmp (result, "-0.000000e+000 33") == 0);
2331 ASSERT (length == strlen (result));
2332 free (result);
2333 }
2334
2335 { /* Positive infinity. */
2336 size_t length;
2337 char *result =
2338 my_asnprintf (NULL, &length, "%Le %d", Infinityl (), 33, 44, 55);
2339 ASSERT (result != NULL);
2340 ASSERT (strcmp (result, "inf 33") == 0
2341 || strcmp (result, "infinity 33") == 0);
2342 ASSERT (length == strlen (result));
2343 free (result);
2344 }
2345
2346 { /* Negative infinity. */
2347 size_t length;
2348 char *result =
2349 my_asnprintf (NULL, &length, "%Le %d", - Infinityl (), 33, 44, 55);
2350 ASSERT (result != NULL);
2351 ASSERT (strcmp (result, "-inf 33") == 0
2352 || strcmp (result, "-infinity 33") == 0);
2353 ASSERT (length == strlen (result));
2354 free (result);
2355 }
2356
2357 { /* NaN. */
2358 size_t length;
2359 char *result =
2360 my_asnprintf (NULL, &length, "%Le %d", NaNl (), 33, 44, 55);
2361 ASSERT (result != NULL);
2362 ASSERT (strlen (result) >= 3 + 3
2363 && strisnan (result, 0, strlen (result) - 3, 0)
2364 && strcmp (result + strlen (result) - 3, " 33") == 0);
2365 ASSERT (length == strlen (result));
2366 free (result);
2367 }
2368 #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
2369 { /* Quiet NaN. */
2370 static union { unsigned int word[4]; long double value; } x =
2371 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2372 size_t length;
2373 char *result =
2374 my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
2375 ASSERT (result != NULL);
2376 ASSERT (length == strlen (result));
2377 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
2378 free (result);
2379 }
2380 {
2381 /* Signalling NaN. */
2382 static union { unsigned int word[4]; long double value; } x =
2383 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2384 size_t length;
2385 char *result =
2386 my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
2387 ASSERT (result != NULL);
2388 ASSERT (length == strlen (result));
2389 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
2390 free (result);
2391 }
2392 /* asnprintf should print something even for noncanonical values. */
2393 { /* Pseudo-NaN. */
2394 static union { unsigned int word[4]; long double value; } x =
2395 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2396 size_t length;
2397 char *result =
2398 my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
2399 ASSERT (result != NULL);
2400 ASSERT (length == strlen (result));
2401 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
2402 free (result);
2403 }
2404 { /* Pseudo-Infinity. */
2405 static union { unsigned int word[4]; long double value; } x =
2406 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2407 size_t length;
2408 char *result =
2409 my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
2410 ASSERT (result != NULL);
2411 ASSERT (length == strlen (result));
2412 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
2413 free (result);
2414 }
2415 { /* Pseudo-Zero. */
2416 static union { unsigned int word[4]; long double value; } x =
2417 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2418 size_t length;
2419 char *result =
2420 my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
2421 ASSERT (result != NULL);
2422 ASSERT (length == strlen (result));
2423 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
2424 free (result);
2425 }
2426 { /* Unnormalized number. */
2427 static union { unsigned int word[4]; long double value; } x =
2428 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2429 size_t length;
2430 char *result =
2431 my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
2432 ASSERT (result != NULL);
2433 ASSERT (length == strlen (result));
2434 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
2435 free (result);
2436 }
2437 { /* Pseudo-Denormal. */
2438 static union { unsigned int word[4]; long double value; } x =
2439 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2440 size_t length;
2441 char *result =
2442 my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
2443 ASSERT (result != NULL);
2444 ASSERT (length == strlen (result));
2445 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
2446 free (result);
2447 }
2448 #endif
2449
2450 { /* Width. */
2451 size_t length;
2452 char *result =
2453 my_asnprintf (NULL, &length, "%15Le %d", 1.75L, 33, 44, 55);
2454 ASSERT (result != NULL);
2455 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2456 || strcmp (result, " 1.750000e+000 33") == 0);
2457 ASSERT (length == strlen (result));
2458 free (result);
2459 }
2460
2461 { /* FLAG_LEFT. */
2462 size_t length;
2463 char *result =
2464 my_asnprintf (NULL, &length, "%-15Le %d", 1.75L, 33, 44, 55);
2465 ASSERT (result != NULL);
2466 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2467 || strcmp (result, "1.750000e+000 33") == 0);
2468 ASSERT (length == strlen (result));
2469 free (result);
2470 }
2471
2472 { /* FLAG_SHOWSIGN. */
2473 size_t length;
2474 char *result =
2475 my_asnprintf (NULL, &length, "%+Le %d", 1.75L, 33, 44, 55);
2476 ASSERT (result != NULL);
2477 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
2478 || strcmp (result, "+1.750000e+000 33") == 0);
2479 ASSERT (length == strlen (result));
2480 free (result);
2481 }
2482
2483 { /* FLAG_SPACE. */
2484 size_t length;
2485 char *result =
2486 my_asnprintf (NULL, &length, "% Le %d", 1.75L, 33, 44, 55);
2487 ASSERT (result != NULL);
2488 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2489 || strcmp (result, " 1.750000e+000 33") == 0);
2490 ASSERT (length == strlen (result));
2491 free (result);
2492 }
2493
2494 { /* FLAG_ALT. */
2495 size_t length;
2496 char *result =
2497 my_asnprintf (NULL, &length, "%#Le %d", 1.75L, 33, 44, 55);
2498 ASSERT (result != NULL);
2499 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2500 || strcmp (result, "1.750000e+000 33") == 0);
2501 ASSERT (length == strlen (result));
2502 free (result);
2503 }
2504
2505 { /* FLAG_ALT. */
2506 size_t length;
2507 char *result =
2508 my_asnprintf (NULL, &length, "%#.Le %d", 1.75L, 33, 44, 55);
2509 ASSERT (result != NULL);
2510 ASSERT (strcmp (result, "2.e+00 33") == 0
2511 || strcmp (result, "2.e+000 33") == 0);
2512 ASSERT (length == strlen (result));
2513 free (result);
2514 }
2515
2516 { /* FLAG_ALT. */
2517 size_t length;
2518 char *result =
2519 my_asnprintf (NULL, &length, "%#.Le %d", 9.75L, 33, 44, 55);
2520 ASSERT (result != NULL);
2521 ASSERT (strcmp (result, "1.e+01 33") == 0
2522 || strcmp (result, "1.e+001 33") == 0);
2523 ASSERT (length == strlen (result));
2524 free (result);
2525 }
2526
2527 { /* FLAG_ZERO with finite number. */
2528 size_t length;
2529 char *result =
2530 my_asnprintf (NULL, &length, "%015Le %d", 1234.0L, 33, 44, 55);
2531 ASSERT (result != NULL);
2532 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
2533 || strcmp (result, "001.234000e+003 33") == 0);
2534 ASSERT (length == strlen (result));
2535 free (result);
2536 }
2537
2538 { /* FLAG_ZERO with infinite number. */
2539 size_t length;
2540 char *result =
2541 my_asnprintf (NULL, &length, "%015Le %d", - Infinityl (), 33, 44, 55);
2542 ASSERT (result != NULL);
2543 ASSERT (strcmp (result, " -inf 33") == 0
2544 || strcmp (result, " -infinity 33") == 0);
2545 ASSERT (length == strlen (result));
2546 free (result);
2547 }
2548
2549 { /* FLAG_ZERO with NaN. */
2550 size_t length;
2551 char *result =
2552 my_asnprintf (NULL, &length, "%050Le %d", NaNl (), 33, 44, 55);
2553 ASSERT (result != NULL);
2554 ASSERT (strlen (result) == 50 + 3
2555 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2556 && strcmp (result + strlen (result) - 3, " 33") == 0);
2557 ASSERT (length == strlen (result));
2558 free (result);
2559 }
2560
2561 { /* Precision. */
2562 size_t length;
2563 char *result =
2564 my_asnprintf (NULL, &length, "%.Le %d", 1234.0L, 33, 44, 55);
2565 ASSERT (result != NULL);
2566 ASSERT (strcmp (result, "1e+03 33") == 0
2567 || strcmp (result, "1e+003 33") == 0);
2568 ASSERT (length == strlen (result));
2569 free (result);
2570 }
2571
2572 { /* Precision with no rounding. */
2573 size_t length;
2574 char *result =
2575 my_asnprintf (NULL, &length, "%.4Le %d", 999.951L, 33, 44, 55);
2576 ASSERT (result != NULL);
2577 ASSERT (strcmp (result, "9.9995e+02 33") == 0
2578 || strcmp (result, "9.9995e+002 33") == 0);
2579 ASSERT (length == strlen (result));
2580 free (result);
2581 }
2582
2583 { /* Precision with rounding. */
2584 size_t length;
2585 char *result =
2586 my_asnprintf (NULL, &length, "%.4Le %d", 999.996L, 33, 44, 55);
2587 ASSERT (result != NULL);
2588 ASSERT (strcmp (result, "1.0000e+03 33") == 0
2589 || strcmp (result, "1.0000e+003 33") == 0);
2590 ASSERT (length == strlen (result));
2591 free (result);
2592 }
2593
2594 /* Test the support of the %g format directive. */
2595
2596 { /* A positive number. */
2597 size_t length;
2598 char *result =
2599 my_asnprintf (NULL, &length, "%g %d", 12.75, 33, 44, 55);
2600 ASSERT (result != NULL);
2601 ASSERT (strcmp (result, "12.75 33") == 0);
2602 ASSERT (length == strlen (result));
2603 free (result);
2604 }
2605
2606 { /* A larger positive number. */
2607 size_t length;
2608 char *result =
2609 my_asnprintf (NULL, &length, "%g %d", 1234567.0, 33, 44, 55);
2610 ASSERT (result != NULL);
2611 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2612 || strcmp (result, "1.23457e+006 33") == 0);
2613 ASSERT (length == strlen (result));
2614 free (result);
2615 }
2616
2617 { /* Small and large positive numbers. */
2618 static struct { double value; const char *string; } data[] =
2619 {
2620 { 1.234321234321234e-37, "1.23432e-37" },
2621 { 1.234321234321234e-36, "1.23432e-36" },
2622 { 1.234321234321234e-35, "1.23432e-35" },
2623 { 1.234321234321234e-34, "1.23432e-34" },
2624 { 1.234321234321234e-33, "1.23432e-33" },
2625 { 1.234321234321234e-32, "1.23432e-32" },
2626 { 1.234321234321234e-31, "1.23432e-31" },
2627 { 1.234321234321234e-30, "1.23432e-30" },
2628 { 1.234321234321234e-29, "1.23432e-29" },
2629 { 1.234321234321234e-28, "1.23432e-28" },
2630 { 1.234321234321234e-27, "1.23432e-27" },
2631 { 1.234321234321234e-26, "1.23432e-26" },
2632 { 1.234321234321234e-25, "1.23432e-25" },
2633 { 1.234321234321234e-24, "1.23432e-24" },
2634 { 1.234321234321234e-23, "1.23432e-23" },
2635 { 1.234321234321234e-22, "1.23432e-22" },
2636 { 1.234321234321234e-21, "1.23432e-21" },
2637 { 1.234321234321234e-20, "1.23432e-20" },
2638 { 1.234321234321234e-19, "1.23432e-19" },
2639 { 1.234321234321234e-18, "1.23432e-18" },
2640 { 1.234321234321234e-17, "1.23432e-17" },
2641 { 1.234321234321234e-16, "1.23432e-16" },
2642 { 1.234321234321234e-15, "1.23432e-15" },
2643 { 1.234321234321234e-14, "1.23432e-14" },
2644 { 1.234321234321234e-13, "1.23432e-13" },
2645 { 1.234321234321234e-12, "1.23432e-12" },
2646 { 1.234321234321234e-11, "1.23432e-11" },
2647 { 1.234321234321234e-10, "1.23432e-10" },
2648 { 1.234321234321234e-9, "1.23432e-09" },
2649 { 1.234321234321234e-8, "1.23432e-08" },
2650 { 1.234321234321234e-7, "1.23432e-07" },
2651 { 1.234321234321234e-6, "1.23432e-06" },
2652 { 1.234321234321234e-5, "1.23432e-05" },
2653 { 1.234321234321234e-4, "0.000123432" },
2654 { 1.234321234321234e-3, "0.00123432" },
2655 { 1.234321234321234e-2, "0.0123432" },
2656 { 1.234321234321234e-1, "0.123432" },
2657 { 1.234321234321234, "1.23432" },
2658 { 1.234321234321234e1, "12.3432" },
2659 { 1.234321234321234e2, "123.432" },
2660 { 1.234321234321234e3, "1234.32" },
2661 { 1.234321234321234e4, "12343.2" },
2662 { 1.234321234321234e5, "123432" },
2663 { 1.234321234321234e6, "1.23432e+06" },
2664 { 1.234321234321234e7, "1.23432e+07" },
2665 { 1.234321234321234e8, "1.23432e+08" },
2666 { 1.234321234321234e9, "1.23432e+09" },
2667 { 1.234321234321234e10, "1.23432e+10" },
2668 { 1.234321234321234e11, "1.23432e+11" },
2669 { 1.234321234321234e12, "1.23432e+12" },
2670 { 1.234321234321234e13, "1.23432e+13" },
2671 { 1.234321234321234e14, "1.23432e+14" },
2672 { 1.234321234321234e15, "1.23432e+15" },
2673 { 1.234321234321234e16, "1.23432e+16" },
2674 { 1.234321234321234e17, "1.23432e+17" },
2675 { 1.234321234321234e18, "1.23432e+18" },
2676 { 1.234321234321234e19, "1.23432e+19" },
2677 { 1.234321234321234e20, "1.23432e+20" },
2678 { 1.234321234321234e21, "1.23432e+21" },
2679 { 1.234321234321234e22, "1.23432e+22" },
2680 { 1.234321234321234e23, "1.23432e+23" },
2681 { 1.234321234321234e24, "1.23432e+24" },
2682 { 1.234321234321234e25, "1.23432e+25" },
2683 { 1.234321234321234e26, "1.23432e+26" },
2684 { 1.234321234321234e27, "1.23432e+27" },
2685 { 1.234321234321234e28, "1.23432e+28" },
2686 { 1.234321234321234e29, "1.23432e+29" },
2687 { 1.234321234321234e30, "1.23432e+30" },
2688 { 1.234321234321234e31, "1.23432e+31" },
2689 { 1.234321234321234e32, "1.23432e+32" },
2690 { 1.234321234321234e33, "1.23432e+33" },
2691 { 1.234321234321234e34, "1.23432e+34" },
2692 { 1.234321234321234e35, "1.23432e+35" },
2693 { 1.234321234321234e36, "1.23432e+36" }
2694 };
2695 size_t k;
2696 for (k = 0; k < SIZEOF (data); k++)
2697 {
2698 size_t length;
2699 char *result =
2700 my_asnprintf (NULL, &length, "%g", data[k].value);
2701 const char *expected = data[k].string;
2702 ASSERT (result != NULL);
2703 ASSERT (strcmp (result, expected) == 0
2704 /* Some implementations produce exponents with 3 digits. */
2705 || (expected[strlen (expected) - 4] == 'e'
2706 && strlen (result) == strlen (expected) + 1
2707 && memcmp (result, expected, strlen (expected) - 2) == 0
2708 && result[strlen (expected) - 2] == '0'
2709 && strcmp (result + strlen (expected) - 1,
2710 expected + strlen (expected) - 2)
2711 == 0));
2712 ASSERT (length == strlen (result));
2713 free (result);
2714 }
2715 }
2716
2717 { /* A negative number. */
2718 size_t length;
2719 char *result =
2720 my_asnprintf (NULL, &length, "%g %d", -0.03125, 33, 44, 55);
2721 ASSERT (result != NULL);
2722 ASSERT (strcmp (result, "-0.03125 33") == 0);
2723 ASSERT (length == strlen (result));
2724 free (result);
2725 }
2726
2727 { /* Positive zero. */
2728 size_t length;
2729 char *result =
2730 my_asnprintf (NULL, &length, "%g %d", 0.0, 33, 44, 55);
2731 ASSERT (result != NULL);
2732 ASSERT (strcmp (result, "0 33") == 0);
2733 ASSERT (length == strlen (result));
2734 free (result);
2735 }
2736
2737 { /* Negative zero. */
2738 size_t length;
2739 char *result =
2740 my_asnprintf (NULL, &length, "%g %d", minus_zerod, 33, 44, 55);
2741 ASSERT (result != NULL);
2742 if (have_minus_zero ())
2743 ASSERT (strcmp (result, "-0 33") == 0);
2744 ASSERT (length == strlen (result));
2745 free (result);
2746 }
2747
2748 { /* Positive infinity. */
2749 size_t length;
2750 char *result =
2751 my_asnprintf (NULL, &length, "%g %d", Infinityd (), 33, 44, 55);
2752 ASSERT (result != NULL);
2753 ASSERT (strcmp (result, "inf 33") == 0
2754 || strcmp (result, "infinity 33") == 0);
2755 ASSERT (length == strlen (result));
2756 free (result);
2757 }
2758
2759 { /* Negative infinity. */
2760 size_t length;
2761 char *result =
2762 my_asnprintf (NULL, &length, "%g %d", - Infinityd (), 33, 44, 55);
2763 ASSERT (result != NULL);
2764 ASSERT (strcmp (result, "-inf 33") == 0
2765 || strcmp (result, "-infinity 33") == 0);
2766 ASSERT (length == strlen (result));
2767 free (result);
2768 }
2769
2770 { /* NaN. */
2771 size_t length;
2772 char *result =
2773 my_asnprintf (NULL, &length, "%g %d", NaNd (), 33, 44, 55);
2774 ASSERT (result != NULL);
2775 ASSERT (strlen (result) >= 3 + 3
2776 && strisnan (result, 0, strlen (result) - 3, 0)
2777 && strcmp (result + strlen (result) - 3, " 33") == 0);
2778 ASSERT (length == strlen (result));
2779 free (result);
2780 }
2781
2782 { /* Width. */
2783 size_t length;
2784 char *result =
2785 my_asnprintf (NULL, &length, "%10g %d", 1.75, 33, 44, 55);
2786 ASSERT (result != NULL);
2787 ASSERT (strcmp (result, " 1.75 33") == 0);
2788 ASSERT (length == strlen (result));
2789 free (result);
2790 }
2791
2792 { /* FLAG_LEFT. */
2793 size_t length;
2794 char *result =
2795 my_asnprintf (NULL, &length, "%-10g %d", 1.75, 33, 44, 55);
2796 ASSERT (result != NULL);
2797 ASSERT (strcmp (result, "1.75 33") == 0);
2798 ASSERT (length == strlen (result));
2799 free (result);
2800 }
2801
2802 { /* FLAG_SHOWSIGN. */
2803 size_t length;
2804 char *result =
2805 my_asnprintf (NULL, &length, "%+g %d", 1.75, 33, 44, 55);
2806 ASSERT (result != NULL);
2807 ASSERT (strcmp (result, "+1.75 33") == 0);
2808 ASSERT (length == strlen (result));
2809 free (result);
2810 }
2811
2812 { /* FLAG_SPACE. */
2813 size_t length;
2814 char *result =
2815 my_asnprintf (NULL, &length, "% g %d", 1.75, 33, 44, 55);
2816 ASSERT (result != NULL);
2817 ASSERT (strcmp (result, " 1.75 33") == 0);
2818 ASSERT (length == strlen (result));
2819 free (result);
2820 }
2821
2822 { /* FLAG_ALT. */
2823 size_t length;
2824 char *result =
2825 my_asnprintf (NULL, &length, "%#g %d", 1.75, 33, 44, 55);
2826 ASSERT (result != NULL);
2827 ASSERT (strcmp (result, "1.75000 33") == 0);
2828 ASSERT (length == strlen (result));
2829 free (result);
2830 }
2831
2832 { /* FLAG_ALT. */
2833 size_t length;
2834 char *result =
2835 my_asnprintf (NULL, &length, "%#.g %d", 1.75, 33, 44, 55);
2836 ASSERT (result != NULL);
2837 ASSERT (strcmp (result, "2. 33") == 0);
2838 ASSERT (length == strlen (result));
2839 free (result);
2840 }
2841
2842 { /* FLAG_ALT. */
2843 size_t length;
2844 char *result =
2845 my_asnprintf (NULL, &length, "%#.g %d", 9.75, 33, 44, 55);
2846 ASSERT (result != NULL);
2847 ASSERT (strcmp (result, "1.e+01 33") == 0
2848 || strcmp (result, "1.e+001 33") == 0);
2849 ASSERT (length == strlen (result));
2850 free (result);
2851 }
2852
2853 { /* FLAG_ZERO with finite number. */
2854 size_t length;
2855 char *result =
2856 my_asnprintf (NULL, &length, "%010g %d", 1234.0, 33, 44, 55);
2857 ASSERT (result != NULL);
2858 ASSERT (strcmp (result, "0000001234 33") == 0);
2859 ASSERT (length == strlen (result));
2860 free (result);
2861 }
2862
2863 { /* FLAG_ZERO with infinite number. */
2864 size_t length;
2865 char *result =
2866 my_asnprintf (NULL, &length, "%015g %d", - Infinityd (), 33, 44, 55);
2867 ASSERT (result != NULL);
2868 ASSERT (strcmp (result, " -inf 33") == 0
2869 || strcmp (result, " -infinity 33") == 0);
2870 ASSERT (length == strlen (result));
2871 free (result);
2872 }
2873
2874 { /* FLAG_ZERO with NaN. */
2875 size_t length;
2876 char *result =
2877 my_asnprintf (NULL, &length, "%050g %d", NaNd (), 33, 44, 55);
2878 ASSERT (result != NULL);
2879 ASSERT (strlen (result) == 50 + 3
2880 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2881 && strcmp (result + strlen (result) - 3, " 33") == 0);
2882 ASSERT (length == strlen (result));
2883 free (result);
2884 }
2885
2886 { /* Precision. */
2887 size_t length;
2888 char *result =
2889 my_asnprintf (NULL, &length, "%.g %d", 1234.0, 33, 44, 55);
2890 ASSERT (result != NULL);
2891 ASSERT (strcmp (result, "1e+03 33") == 0
2892 || strcmp (result, "1e+003 33") == 0);
2893 ASSERT (length == strlen (result));
2894 free (result);
2895 }
2896
2897 { /* Precision with no rounding. */
2898 size_t length;
2899 char *result =
2900 my_asnprintf (NULL, &length, "%.5g %d", 999.951, 33, 44, 55);
2901 ASSERT (result != NULL);
2902 ASSERT (strcmp (result, "999.95 33") == 0);
2903 ASSERT (length == strlen (result));
2904 free (result);
2905 }
2906
2907 { /* Precision with rounding. */
2908 size_t length;
2909 char *result =
2910 my_asnprintf (NULL, &length, "%.5g %d", 999.996, 33, 44, 55);
2911 ASSERT (result != NULL);
2912 ASSERT (strcmp (result, "1000 33") == 0);
2913 ASSERT (length == strlen (result));
2914 free (result);
2915 }
2916
2917 { /* A positive number. */
2918 size_t length;
2919 char *result =
2920 my_asnprintf (NULL, &length, "%Lg %d", 12.75L, 33, 44, 55);
2921 ASSERT (result != NULL);
2922 ASSERT (strcmp (result, "12.75 33") == 0);
2923 ASSERT (length == strlen (result));
2924 free (result);
2925 }
2926
2927 { /* A larger positive number. */
2928 size_t length;
2929 char *result =
2930 my_asnprintf (NULL, &length, "%Lg %d", 1234567.0L, 33, 44, 55);
2931 ASSERT (result != NULL);
2932 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2933 || strcmp (result, "1.23457e+006 33") == 0);
2934 ASSERT (length == strlen (result));
2935 free (result);
2936 }
2937
2938 { /* Small and large positive numbers. */
2939 static struct { long double value; const char *string; } data[] =
2940 {
2941 { 1.234321234321234e-37L, "1.23432e-37" },
2942 { 1.234321234321234e-36L, "1.23432e-36" },
2943 { 1.234321234321234e-35L, "1.23432e-35" },
2944 { 1.234321234321234e-34L, "1.23432e-34" },
2945 { 1.234321234321234e-33L, "1.23432e-33" },
2946 { 1.234321234321234e-32L, "1.23432e-32" },
2947 { 1.234321234321234e-31L, "1.23432e-31" },
2948 { 1.234321234321234e-30L, "1.23432e-30" },
2949 { 1.234321234321234e-29L, "1.23432e-29" },
2950 { 1.234321234321234e-28L, "1.23432e-28" },
2951 { 1.234321234321234e-27L, "1.23432e-27" },
2952 { 1.234321234321234e-26L, "1.23432e-26" },
2953 { 1.234321234321234e-25L, "1.23432e-25" },
2954 { 1.234321234321234e-24L, "1.23432e-24" },
2955 { 1.234321234321234e-23L, "1.23432e-23" },
2956 { 1.234321234321234e-22L, "1.23432e-22" },
2957 { 1.234321234321234e-21L, "1.23432e-21" },
2958 { 1.234321234321234e-20L, "1.23432e-20" },
2959 { 1.234321234321234e-19L, "1.23432e-19" },
2960 { 1.234321234321234e-18L, "1.23432e-18" },
2961 { 1.234321234321234e-17L, "1.23432e-17" },
2962 { 1.234321234321234e-16L, "1.23432e-16" },
2963 { 1.234321234321234e-15L, "1.23432e-15" },
2964 { 1.234321234321234e-14L, "1.23432e-14" },
2965 { 1.234321234321234e-13L, "1.23432e-13" },
2966 { 1.234321234321234e-12L, "1.23432e-12" },
2967 { 1.234321234321234e-11L, "1.23432e-11" },
2968 { 1.234321234321234e-10L, "1.23432e-10" },
2969 { 1.234321234321234e-9L, "1.23432e-09" },
2970 { 1.234321234321234e-8L, "1.23432e-08" },
2971 { 1.234321234321234e-7L, "1.23432e-07" },
2972 { 1.234321234321234e-6L, "1.23432e-06" },
2973 { 1.234321234321234e-5L, "1.23432e-05" },
2974 { 1.234321234321234e-4L, "0.000123432" },
2975 { 1.234321234321234e-3L, "0.00123432" },
2976 { 1.234321234321234e-2L, "0.0123432" },
2977 { 1.234321234321234e-1L, "0.123432" },
2978 { 1.234321234321234L, "1.23432" },
2979 { 1.234321234321234e1L, "12.3432" },
2980 { 1.234321234321234e2L, "123.432" },
2981 { 1.234321234321234e3L, "1234.32" },
2982 { 1.234321234321234e4L, "12343.2" },
2983 { 1.234321234321234e5L, "123432" },
2984 { 1.234321234321234e6L, "1.23432e+06" },
2985 { 1.234321234321234e7L, "1.23432e+07" },
2986 { 1.234321234321234e8L, "1.23432e+08" },
2987 { 1.234321234321234e9L, "1.23432e+09" },
2988 { 1.234321234321234e10L, "1.23432e+10" },
2989 { 1.234321234321234e11L, "1.23432e+11" },
2990 { 1.234321234321234e12L, "1.23432e+12" },
2991 { 1.234321234321234e13L, "1.23432e+13" },
2992 { 1.234321234321234e14L, "1.23432e+14" },
2993 { 1.234321234321234e15L, "1.23432e+15" },
2994 { 1.234321234321234e16L, "1.23432e+16" },
2995 { 1.234321234321234e17L, "1.23432e+17" },
2996 { 1.234321234321234e18L, "1.23432e+18" },
2997 { 1.234321234321234e19L, "1.23432e+19" },
2998 { 1.234321234321234e20L, "1.23432e+20" },
2999 { 1.234321234321234e21L, "1.23432e+21" },
3000 { 1.234321234321234e22L, "1.23432e+22" },
3001 { 1.234321234321234e23L, "1.23432e+23" },
3002 { 1.234321234321234e24L, "1.23432e+24" },
3003 { 1.234321234321234e25L, "1.23432e+25" },
3004 { 1.234321234321234e26L, "1.23432e+26" },
3005 { 1.234321234321234e27L, "1.23432e+27" },
3006 { 1.234321234321234e28L, "1.23432e+28" },
3007 { 1.234321234321234e29L, "1.23432e+29" },
3008 { 1.234321234321234e30L, "1.23432e+30" },
3009 { 1.234321234321234e31L, "1.23432e+31" },
3010 { 1.234321234321234e32L, "1.23432e+32" },
3011 { 1.234321234321234e33L, "1.23432e+33" },
3012 { 1.234321234321234e34L, "1.23432e+34" },
3013 { 1.234321234321234e35L, "1.23432e+35" },
3014 { 1.234321234321234e36L, "1.23432e+36" }
3015 };
3016 size_t k;
3017 for (k = 0; k < SIZEOF (data); k++)
3018 {
3019 size_t length;
3020 char *result =
3021 my_asnprintf (NULL, &length, "%Lg", data[k].value);
3022 const char *expected = data[k].string;
3023 ASSERT (result != NULL);
3024 ASSERT (strcmp (result, expected) == 0
3025 /* Some implementations produce exponents with 3 digits. */
3026 || (expected[strlen (expected) - 4] == 'e'
3027 && strlen (result) == strlen (expected) + 1
3028 && memcmp (result, expected, strlen (expected) - 2) == 0
3029 && result[strlen (expected) - 2] == '0'
3030 && strcmp (result + strlen (expected) - 1,
3031 expected + strlen (expected) - 2)
3032 == 0));
3033 ASSERT (length == strlen (result));
3034 free (result);
3035 }
3036 }
3037
3038 { /* A negative number. */
3039 size_t length;
3040 char *result =
3041 my_asnprintf (NULL, &length, "%Lg %d", -0.03125L, 33, 44, 55);
3042 ASSERT (result != NULL);
3043 ASSERT (strcmp (result, "-0.03125 33") == 0);
3044 ASSERT (length == strlen (result));
3045 free (result);
3046 }
3047
3048 { /* Positive zero. */
3049 size_t length;
3050 char *result =
3051 my_asnprintf (NULL, &length, "%Lg %d", 0.0L, 33, 44, 55);
3052 ASSERT (result != NULL);
3053 ASSERT (strcmp (result, "0 33") == 0);
3054 ASSERT (length == strlen (result));
3055 free (result);
3056 }
3057
3058 { /* Negative zero. */
3059 size_t length;
3060 char *result =
3061 my_asnprintf (NULL, &length, "%Lg %d", minus_zerol, 33, 44, 55);
3062 ASSERT (result != NULL);
3063 if (have_minus_zero ())
3064 ASSERT (strcmp (result, "-0 33") == 0);
3065 ASSERT (length == strlen (result));
3066 free (result);
3067 }
3068
3069 { /* Positive infinity. */
3070 size_t length;
3071 char *result =
3072 my_asnprintf (NULL, &length, "%Lg %d", Infinityl (), 33, 44, 55);
3073 ASSERT (result != NULL);
3074 ASSERT (strcmp (result, "inf 33") == 0
3075 || strcmp (result, "infinity 33") == 0);
3076 ASSERT (length == strlen (result));
3077 free (result);
3078 }
3079
3080 { /* Negative infinity. */
3081 size_t length;
3082 char *result =
3083 my_asnprintf (NULL, &length, "%Lg %d", - Infinityl (), 33, 44, 55);
3084 ASSERT (result != NULL);
3085 ASSERT (strcmp (result, "-inf 33") == 0
3086 || strcmp (result, "-infinity 33") == 0);
3087 ASSERT (length == strlen (result));
3088 free (result);
3089 }
3090
3091 { /* NaN. */
3092 size_t length;
3093 char *result =
3094 my_asnprintf (NULL, &length, "%Lg %d", NaNl (), 33, 44, 55);
3095 ASSERT (result != NULL);
3096 ASSERT (strlen (result) >= 3 + 3
3097 && strisnan (result, 0, strlen (result) - 3, 0)
3098 && strcmp (result + strlen (result) - 3, " 33") == 0);
3099 ASSERT (length == strlen (result));
3100 free (result);
3101 }
3102 #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_)) && !HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
3103 { /* Quiet NaN. */
3104 static union { unsigned int word[4]; long double value; } x =
3105 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
3106 size_t length;
3107 char *result =
3108 my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
3109 ASSERT (result != NULL);
3110 ASSERT (strlen (result) >= 3 + 3
3111 && strisnan (result, 0, strlen (result) - 3, 0)
3112 && strcmp (result + strlen (result) - 3, " 33") == 0);
3113 ASSERT (length == strlen (result));
3114 free (result);
3115 }
3116 {
3117 /* Signalling NaN. */
3118 static union { unsigned int word[4]; long double value; } x =
3119 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
3120 size_t length;
3121 char *result =
3122 my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
3123 ASSERT (result != NULL);
3124 ASSERT (strlen (result) >= 3 + 3
3125 && strisnan (result, 0, strlen (result) - 3, 0)
3126 && strcmp (result + strlen (result) - 3, " 33") == 0);
3127 ASSERT (length == strlen (result));
3128 free (result);
3129 }
3130 /* asnprintf should print something for noncanonical values. */
3131 { /* Pseudo-NaN. */
3132 static union { unsigned int word[4]; long double value; } x =
3133 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
3134 size_t length;
3135 char *result =
3136 my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
3137 ASSERT (result != NULL);
3138 ASSERT (length == strlen (result));
3139 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
3140 free (result);
3141 }
3142 { /* Pseudo-Infinity. */
3143 static union { unsigned int word[4]; long double value; } x =
3144 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
3145 size_t length;
3146 char *result =
3147 my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
3148 ASSERT (result != NULL);
3149 ASSERT (length == strlen (result));
3150 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
3151 free (result);
3152 }
3153 { /* Pseudo-Zero. */
3154 static union { unsigned int word[4]; long double value; } x =
3155 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
3156 size_t length;
3157 char *result =
3158 my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
3159 ASSERT (result != NULL);
3160 ASSERT (length == strlen (result));
3161 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
3162 free (result);
3163 }
3164 { /* Unnormalized number. */
3165 static union { unsigned int word[4]; long double value; } x =
3166 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
3167 size_t length;
3168 char *result =
3169 my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
3170 ASSERT (result != NULL);
3171 ASSERT (length == strlen (result));
3172 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
3173 free (result);
3174 }
3175 { /* Pseudo-Denormal. */
3176 static union { unsigned int word[4]; long double value; } x =
3177 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
3178 size_t length;
3179 char *result =
3180 my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
3181 ASSERT (result != NULL);
3182 ASSERT (length == strlen (result));
3183 ASSERT (3 < length && strcmp (result + length - 3, " 33") == 0);
3184 free (result);
3185 }
3186 #endif
3187
3188 { /* Width. */
3189 size_t length;
3190 char *result =
3191 my_asnprintf (NULL, &length, "%10Lg %d", 1.75L, 33, 44, 55);
3192 ASSERT (result != NULL);
3193 ASSERT (strcmp (result, " 1.75 33") == 0);
3194 ASSERT (length == strlen (result));
3195 free (result);
3196 }
3197
3198 { /* FLAG_LEFT. */
3199 size_t length;
3200 char *result =
3201 my_asnprintf (NULL, &length, "%-10Lg %d", 1.75L, 33, 44, 55);
3202 ASSERT (result != NULL);
3203 ASSERT (strcmp (result, "1.75 33") == 0);
3204 ASSERT (length == strlen (result));
3205 free (result);
3206 }
3207
3208 { /* FLAG_SHOWSIGN. */
3209 size_t length;
3210 char *result =
3211 my_asnprintf (NULL, &length, "%+Lg %d", 1.75L, 33, 44, 55);
3212 ASSERT (result != NULL);
3213 ASSERT (strcmp (result, "+1.75 33") == 0);
3214 ASSERT (length == strlen (result));
3215 free (result);
3216 }
3217
3218 { /* FLAG_SPACE. */
3219 size_t length;
3220 char *result =
3221 my_asnprintf (NULL, &length, "% Lg %d", 1.75L, 33, 44, 55);
3222 ASSERT (result != NULL);
3223 ASSERT (strcmp (result, " 1.75 33") == 0);
3224 ASSERT (length == strlen (result));
3225 free (result);
3226 }
3227
3228 { /* FLAG_ALT. */
3229 size_t length;
3230 char *result =
3231 my_asnprintf (NULL, &length, "%#Lg %d", 1.75L, 33, 44, 55);
3232 ASSERT (result != NULL);
3233 ASSERT (strcmp (result, "1.75000 33") == 0);
3234 ASSERT (length == strlen (result));
3235 free (result);
3236 }
3237
3238 { /* FLAG_ALT. */
3239 size_t length;
3240 char *result =
3241 my_asnprintf (NULL, &length, "%#.Lg %d", 1.75L, 33, 44, 55);
3242 ASSERT (result != NULL);
3243 ASSERT (strcmp (result, "2. 33") == 0);
3244 ASSERT (length == strlen (result));
3245 free (result);
3246 }
3247
3248 { /* FLAG_ALT. */
3249 size_t length;
3250 char *result =
3251 my_asnprintf (NULL, &length, "%#.Lg %d", 9.75L, 33, 44, 55);
3252 ASSERT (result != NULL);
3253 ASSERT (strcmp (result, "1.e+01 33") == 0
3254 || strcmp (result, "1.e+001 33") == 0);
3255 ASSERT (length == strlen (result));
3256 free (result);
3257 }
3258
3259 { /* FLAG_ZERO with finite number. */
3260 size_t length;
3261 char *result =
3262 my_asnprintf (NULL, &length, "%010Lg %d", 1234.0L, 33, 44, 55);
3263 ASSERT (result != NULL);
3264 ASSERT (strcmp (result, "0000001234 33") == 0);
3265 ASSERT (length == strlen (result));
3266 free (result);
3267 }
3268
3269 { /* FLAG_ZERO with infinite number. */
3270 size_t length;
3271 char *result =
3272 my_asnprintf (NULL, &length, "%015Lg %d", - Infinityl (), 33, 44, 55);
3273 ASSERT (result != NULL);
3274 ASSERT (strcmp (result, " -inf 33") == 0
3275 || strcmp (result, " -infinity 33") == 0);
3276 ASSERT (length == strlen (result));
3277 free (result);
3278 }
3279
3280 { /* FLAG_ZERO with NaN. */
3281 size_t length;
3282 char *result =
3283 my_asnprintf (NULL, &length, "%050Lg %d", NaNl (), 33, 44, 55);
3284 ASSERT (result != NULL);
3285 ASSERT (strlen (result) == 50 + 3
3286 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
3287 && strcmp (result + strlen (result) - 3, " 33") == 0);
3288 ASSERT (length == strlen (result));
3289 free (result);
3290 }
3291
3292 { /* Precision. */
3293 size_t length;
3294 char *result =
3295 my_asnprintf (NULL, &length, "%.Lg %d", 1234.0L, 33, 44, 55);
3296 ASSERT (result != NULL);
3297 ASSERT (strcmp (result, "1e+03 33") == 0
3298 || strcmp (result, "1e+003 33") == 0);
3299 ASSERT (length == strlen (result));
3300 free (result);
3301 }
3302
3303 { /* Precision with no rounding. */
3304 size_t length;
3305 char *result =
3306 my_asnprintf (NULL, &length, "%.5Lg %d", 999.951L, 33, 44, 55);
3307 ASSERT (result != NULL);
3308 ASSERT (strcmp (result, "999.95 33") == 0);
3309 ASSERT (length == strlen (result));
3310 free (result);
3311 }
3312
3313 { /* Precision with rounding. */
3314 size_t length;
3315 char *result =
3316 my_asnprintf (NULL, &length, "%.5Lg %d", 999.996L, 33, 44, 55);
3317 ASSERT (result != NULL);
3318 ASSERT (strcmp (result, "1000 33") == 0);
3319 ASSERT (length == strlen (result));
3320 free (result);
3321 }
3322
3323 /* Test the support of the %n format directive. */
3324
3325 {
3326 int count = -1;
3327 size_t length;
3328 char *result =
3329 my_asnprintf (NULL, &length, "%d %n", 123, &count, 33, 44, 55);
3330 ASSERT (result != NULL);
3331 ASSERT (strcmp (result, "123 ") == 0);
3332 ASSERT (length == strlen (result));
3333 ASSERT (count == 4);
3334 free (result);
3335 }
3336
3337 /* Test the support of the POSIX/XSI format strings with positions. */
3338
3339 {
3340 size_t length;
3341 char *result =
3342 my_asnprintf (NULL, &length, "%2$d %1$d", 33, 55);
3343 ASSERT (result != NULL);
3344 ASSERT (strcmp (result, "55 33") == 0);
3345 ASSERT (length == strlen (result));
3346 free (result);
3347 }
3348
3349 /* Test the support of the grouping flag. */
3350
3351 {
3352 size_t length;
3353 char *result =
3354 my_asnprintf (NULL, &length, "%'d %d", 1234567, 99);
3355 ASSERT (result != NULL);
3356 ASSERT (result[strlen (result) - 1] == '9');
3357 ASSERT (length == strlen (result));
3358 free (result);
3359 }
3360
3361 /* Test the support of the left-adjust flag. */
3362
3363 {
3364 size_t length;
3365 char *result =
3366 my_asnprintf (NULL, &length, "a%*sc", -3, "b");
3367 ASSERT (result != NULL);
3368 ASSERT (strcmp (result, "ab c") == 0);
3369 ASSERT (length == strlen (result));
3370 free (result);
3371 }
3372
3373 {
3374 size_t length;
3375 char *result =
3376 my_asnprintf (NULL, &length, "a%-*sc", 3, "b");
3377 ASSERT (result != NULL);
3378 ASSERT (strcmp (result, "ab c") == 0);
3379 ASSERT (length == strlen (result));
3380 free (result);
3381 }
3382
3383 {
3384 size_t length;
3385 char *result =
3386 my_asnprintf (NULL, &length, "a%-*sc", -3, "b");
3387 ASSERT (result != NULL);
3388 ASSERT (strcmp (result, "ab c") == 0);
3389 ASSERT (length == strlen (result));
3390 free (result);
3391 }
3392
3393 /* Test the support of large precision. */
3394
3395 {
3396 size_t length;
3397 char *result =
3398 my_asnprintf (NULL, &length, "%.4000d %d", 1234567, 99);
3399 size_t i;
3400 ASSERT (result != NULL);
3401 for (i = 0; i < 4000 - 7; i++)
3402 ASSERT (result[i] == '0');
3403 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
3404 ASSERT (length == strlen (result));
3405 free (result);
3406 }
3407
3408 {
3409 size_t length;
3410 char *result =
3411 my_asnprintf (NULL, &length, "%.*d %d", 4000, 1234567, 99);
3412 size_t i;
3413 ASSERT (result != NULL);
3414 for (i = 0; i < 4000 - 7; i++)
3415 ASSERT (result[i] == '0');
3416 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
3417 ASSERT (length == strlen (result));
3418 free (result);
3419 }
3420
3421 {
3422 size_t length;
3423 char *result =
3424 my_asnprintf (NULL, &length, "%.4000d %d", -1234567, 99);
3425 size_t i;
3426 ASSERT (result != NULL);
3427 ASSERT (result[0] == '-');
3428 for (i = 0; i < 4000 - 7; i++)
3429 ASSERT (result[1 + i] == '0');
3430 ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
3431 ASSERT (length == strlen (result));
3432 free (result);
3433 }
3434
3435 {
3436 size_t length;
3437 char *result =
3438 my_asnprintf (NULL, &length, "%.4000u %d", 1234567, 99);
3439 size_t i;
3440 ASSERT (result != NULL);
3441 for (i = 0; i < 4000 - 7; i++)
3442 ASSERT (result[i] == '0');
3443 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
3444 ASSERT (length == strlen (result));
3445 free (result);
3446 }
3447
3448 {
3449 size_t length;
3450 char *result =
3451 my_asnprintf (NULL, &length, "%.4000o %d", 1234567, 99);
3452 size_t i;
3453 ASSERT (result != NULL);
3454 for (i = 0; i < 4000 - 7; i++)
3455 ASSERT (result[i] == '0');
3456 ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
3457 ASSERT (length == strlen (result));
3458 free (result);
3459 }
3460
3461 {
3462 size_t length;
3463 char *result =
3464 my_asnprintf (NULL, &length, "%.4000x %d", 1234567, 99);
3465 size_t i;
3466 ASSERT (result != NULL);
3467 for (i = 0; i < 4000 - 6; i++)
3468 ASSERT (result[i] == '0');
3469 ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
3470 ASSERT (length == strlen (result));
3471 free (result);
3472 }
3473
3474 {
3475 size_t length;
3476 char *result =
3477 my_asnprintf (NULL, &length, "%#.4000x %d", 1234567, 99);
3478 size_t i;
3479 ASSERT (result != NULL);
3480 ASSERT (result[0] == '0');
3481 ASSERT (result[1] == 'x');
3482 for (i = 0; i < 4000 - 6; i++)
3483 ASSERT (result[2 + i] == '0');
3484 ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
3485 ASSERT (length == strlen (result));
3486 free (result);
3487 }
3488
3489 {
3490 size_t length;
3491 char *result =
3492 my_asnprintf (NULL, &length, "%.4000f %d", 1.0, 99);
3493 size_t i;
3494 ASSERT (result != NULL);
3495 ASSERT (result[0] == '1');
3496 ASSERT (result[1] == '.');
3497 for (i = 0; i < 4000; i++)
3498 ASSERT (result[2 + i] == '0');
3499 ASSERT (strcmp (result + 2 + 4000, " 99") == 0);
3500 ASSERT (length == strlen (result));
3501 free (result);
3502 }
3503
3504 {
3505 size_t length;
3506 char *result =
3507 my_asnprintf (NULL, &length, "%.511f %d", 1.0, 99);
3508 size_t i;
3509 ASSERT (result != NULL);
3510 ASSERT (result[0] == '1');
3511 ASSERT (result[1] == '.');
3512 for (i = 0; i < 511; i++)
3513 ASSERT (result[2 + i] == '0');
3514 ASSERT (strcmp (result + 2 + 511, " 99") == 0);
3515 ASSERT (length == strlen (result));
3516 free (result);
3517 }
3518
3519 {
3520 char input[5000];
3521 size_t length;
3522 char *result;
3523 size_t i;
3524
3525 for (i = 0; i < sizeof (input) - 1; i++)
3526 input[i] = 'a' + ((1000000 / (i + 1)) % 26);
3527 input[i] = '\0';
3528 result = my_asnprintf (NULL, &length, "%.4000s %d", input, 99);
3529 ASSERT (result != NULL);
3530 ASSERT (memcmp (result, input, 4000) == 0);
3531 ASSERT (strcmp (result + 4000, " 99") == 0);
3532 ASSERT (length == strlen (result));
3533 free (result);
3534 }
3535
3536 /* Test the support of the %s format directive. */
3537
3538 /* To verify that these tests succeed, it is necessary to run them under
3539 a tool that checks against invalid memory accesses, such as ElectricFence
3540 or "valgrind --tool=memcheck". */
3541 {
3542 size_t i;
3543
3544 for (i = 1; i <= 8; i++)
3545 {
3546 char *block;
3547 size_t length;
3548 char *result;
3549
3550 block = (char *) malloc (i);
3551 memcpy (block, "abcdefgh", i);
3552 result = my_asnprintf (NULL, &length, "%.*s", (int) i, block);
3553 ASSERT (result != NULL);
3554 ASSERT (memcmp (result, block, i) == 0);
3555 ASSERT (result[i] == '\0');
3556 ASSERT (length == strlen (result));
3557 free (result);
3558 free (block);
3559 }
3560 }
3561 #if HAVE_WCHAR_T
3562 {
3563 size_t i;
3564
3565 for (i = 1; i <= 8; i++)
3566 {
3567 wchar_t *block;
3568 size_t j;
3569 size_t length;
3570 char *result;
3571
3572 block = (wchar_t *) malloc (i * sizeof (wchar_t));
3573 for (j = 0; j < i; j++)
3574 block[j] = "abcdefgh"[j];
3575 result = my_asnprintf (NULL, &length, "%.*ls", (int) i, block);
3576 ASSERT (result != NULL);
3577 ASSERT (memcmp (result, "abcdefgh", i) == 0);
3578 ASSERT (result[i] == '\0');
3579 ASSERT (length == strlen (result));
3580 free (result);
3581 free (block);
3582 }
3583 }
3584 #endif
3585
3586 #if HAVE_WCHAR_T
3587 /* Test that converting an invalid wchar_t[] to char[] fails with EILSEQ. */
3588 {
3589 static const wchar_t input[] = { (wchar_t) 1702057263, 114, 0 };
3590 size_t length;
3591 char *result = my_asnprintf (NULL, &length, "%ls %d", input, 99);
3592 if (result == NULL)
3593 ASSERT (errno == EILSEQ);
3594 else
3595 free (result);
3596 }
3597 {
3598 static const wchar_t input[] = { (wchar_t) 1702057263, 114, 0 };
3599 size_t length;
3600 char *result = my_asnprintf (NULL, &length, "%3ls %d", input, 99);
3601 if (result == NULL)
3602 ASSERT (errno == EILSEQ);
3603 else
3604 free (result);
3605 }
3606 {
3607 static const wchar_t input[] = { (wchar_t) 1702057263, 114, 0 };
3608 size_t length;
3609 char *result = my_asnprintf (NULL, &length, "%.1ls %d", input, 99);
3610 if (result == NULL)
3611 ASSERT (errno == EILSEQ);
3612 else
3613 free (result);
3614 }
3615 {
3616 static const wchar_t input[] = { (wchar_t) 1702057263, 114, 0 };
3617 size_t length;
3618 char *result = my_asnprintf (NULL, &length, "%3.1ls %d", input, 99);
3619 if (result == NULL)
3620 ASSERT (errno == EILSEQ);
3621 else
3622 free (result);
3623 }
3624 #endif
3625
3626 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)) && !defined __UCLIBC__
3627 /* Test that the 'I' flag is supported. */
3628 {
3629 size_t length;
3630 char *result =
3631 my_asnprintf (NULL, &length, "%Id %d", 1234567, 99);
3632 ASSERT (result != NULL);
3633 ASSERT (strcmp (result, "1234567 99") == 0);
3634 ASSERT (length == strlen (result));
3635 free (result);
3636 }
3637 #endif
3638 }
3639
3640 static char *
3641 my_asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
3642 {
3643 va_list args;
3644 char *ret;
3645
3646 va_start (args, format);
3647 ret = vasnprintf (resultbuf, lengthp, format, args);
3648 va_end (args);
3649 return ret;
3650 }
3651
3652 static void
3653 test_vasnprintf ()
3654 {
3655 test_function (my_asnprintf);
3656 }
3657
3658 static void
3659 test_asnprintf ()
3660 {
3661 test_function (asnprintf);
3662 }
3663
3664 int
3665 main (int argc, char *argv[])
3666 {
3667 test_vasnprintf ();
3668 test_asnprintf ();
3669 return 0;
3670 }
Mirror of the GNU Gnulib repository