1 /* Test of POSIX compatible vasprintf() and asprintf() functions.
2 Copyright (C) 2007 Free Software Foundation, Inc.
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
32 #define ASSERT(expr) if (!(expr)) abort ();
34 /* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */
39 static double zero = 0.0;
43 # define NaN() (0.0 / 0.0)
47 test_function (int (*my_asprintf) (char **, const char *, ...))
51 /* Test return value convention. */
53 for (repeat = 0; repeat <= 8; repeat++)
56 int retval = asprintf (&result, "%d", 12345);
58 ASSERT (result != NULL);
59 ASSERT (strcmp (result, "12345") == 0);
63 /* Test support of size specifiers as in C99. */
68 my_asprintf (&result, "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
69 ASSERT (result != NULL);
70 ASSERT (strcmp (result, "12345671 33") == 0);
71 ASSERT (retval == strlen (result));
78 my_asprintf (&result, "%zu %d", (size_t) 12345672, 33, 44, 55);
79 ASSERT (result != NULL);
80 ASSERT (strcmp (result, "12345672 33") == 0);
81 ASSERT (retval == strlen (result));
88 my_asprintf (&result, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
89 ASSERT (result != NULL);
90 ASSERT (strcmp (result, "12345673 33") == 0);
91 ASSERT (retval == strlen (result));
98 my_asprintf (&result, "%Lg %d", (long double) 1.5, 33, 44, 55);
99 ASSERT (result != NULL);
100 ASSERT (strcmp (result, "1.5 33") == 0);
101 ASSERT (retval == strlen (result));
105 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
106 output of floating-point numbers. */
108 { /* A positive number. */
111 my_asprintf (&result, "%a %d", 3.1416015625, 33, 44, 55);
112 ASSERT (result != NULL);
113 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
114 || strcmp (result, "0x3.244p+0 33") == 0
115 || strcmp (result, "0x6.488p-1 33") == 0
116 || strcmp (result, "0xc.91p-2 33") == 0);
117 ASSERT (retval == strlen (result));
121 { /* A negative number. */
124 my_asprintf (&result, "%A %d", -3.1416015625, 33, 44, 55);
125 ASSERT (result != NULL);
126 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
127 || strcmp (result, "-0X3.244P+0 33") == 0
128 || strcmp (result, "-0X6.488P-1 33") == 0
129 || strcmp (result, "-0XC.91P-2 33") == 0);
130 ASSERT (retval == strlen (result));
134 { /* Positive zero. */
137 my_asprintf (&result, "%a %d", 0.0, 33, 44, 55);
138 ASSERT (result != NULL);
139 ASSERT (strcmp (result, "0x0p+0 33") == 0);
140 ASSERT (retval == strlen (result));
144 { /* Negative zero. */
147 my_asprintf (&result, "%a %d", -0.0, 33, 44, 55);
148 ASSERT (result != NULL);
149 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
150 ASSERT (retval == strlen (result));
154 { /* Positive infinity. */
157 my_asprintf (&result, "%a %d", 1.0 / 0.0, 33, 44, 55);
158 ASSERT (result != NULL);
159 ASSERT (strcmp (result, "inf 33") == 0);
160 ASSERT (retval == strlen (result));
164 { /* Negative infinity. */
167 my_asprintf (&result, "%a %d", -1.0 / 0.0, 33, 44, 55);
168 ASSERT (result != NULL);
169 ASSERT (strcmp (result, "-inf 33") == 0);
170 ASSERT (retval == strlen (result));
177 my_asprintf (&result, "%a %d", NaN (), 33, 44, 55);
178 ASSERT (result != NULL);
179 ASSERT (strcmp (result, "nan 33") == 0);
180 ASSERT (retval == strlen (result));
184 { /* Rounding near the decimal point. */
187 my_asprintf (&result, "%.0a %d", 1.5, 33, 44, 55);
188 ASSERT (result != NULL);
189 ASSERT (strcmp (result, "0x2p+0 33") == 0
190 || strcmp (result, "0x3p-1 33") == 0
191 || strcmp (result, "0x6p-2 33") == 0
192 || strcmp (result, "0xcp-3 33") == 0);
193 ASSERT (retval == strlen (result));
197 { /* Rounding with precision 0. */
200 my_asprintf (&result, "%.0a %d", 1.51, 33, 44, 55);
201 ASSERT (result != NULL);
202 ASSERT (strcmp (result, "0x2p+0 33") == 0
203 || strcmp (result, "0x3p-1 33") == 0
204 || strcmp (result, "0x6p-2 33") == 0
205 || strcmp (result, "0xcp-3 33") == 0);
206 ASSERT (retval == strlen (result));
210 { /* Rounding with precision 1. */
213 my_asprintf (&result, "%.1a %d", 1.51, 33, 44, 55);
214 ASSERT (result != NULL);
215 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
216 || strcmp (result, "0x3.0p-1 33") == 0
217 || strcmp (result, "0x6.1p-2 33") == 0
218 || strcmp (result, "0xc.1p-3 33") == 0);
219 ASSERT (retval == strlen (result));
223 { /* Rounding with precision 2. */
226 my_asprintf (&result, "%.2a %d", 1.51, 33, 44, 55);
227 ASSERT (result != NULL);
228 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
229 || strcmp (result, "0x3.05p-1 33") == 0
230 || strcmp (result, "0x6.0ap-2 33") == 0
231 || strcmp (result, "0xc.14p-3 33") == 0);
232 ASSERT (retval == strlen (result));
236 { /* Rounding with precision 3. */
239 my_asprintf (&result, "%.3a %d", 1.51, 33, 44, 55);
240 ASSERT (result != NULL);
241 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
242 || strcmp (result, "0x3.052p-1 33") == 0
243 || strcmp (result, "0x6.0a4p-2 33") == 0
244 || strcmp (result, "0xc.148p-3 33") == 0);
245 ASSERT (retval == strlen (result));
249 { /* Rounding can turn a ...FFF into a ...000. */
252 my_asprintf (&result, "%.3a %d", 1.49999, 33, 44, 55);
253 ASSERT (result != NULL);
254 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
255 || strcmp (result, "0x3.000p-1 33") == 0
256 || strcmp (result, "0x6.000p-2 33") == 0
257 || strcmp (result, "0xc.000p-3 33") == 0);
258 ASSERT (retval == strlen (result));
262 { /* Rounding can turn a ...FFF into a ...000.
263 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
266 my_asprintf (&result, "%.1a %d", 1.999, 33, 44, 55);
267 ASSERT (result != NULL);
268 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
269 || strcmp (result, "0x2.0p+0 33") == 0
270 || strcmp (result, "0x4.0p-1 33") == 0
271 || strcmp (result, "0x8.0p-2 33") == 0);
272 ASSERT (retval == strlen (result));
279 my_asprintf (&result, "%10a %d", 1.75, 33, 44, 55);
280 ASSERT (result != NULL);
281 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
282 || strcmp (result, " 0x3.8p-1 33") == 0
283 || strcmp (result, " 0x7p-2 33") == 0
284 || strcmp (result, " 0xep-3 33") == 0);
285 ASSERT (retval == strlen (result));
289 { /* Small precision. */
292 my_asprintf (&result, "%.10a %d", 1.75, 33, 44, 55);
293 ASSERT (result != NULL);
294 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
295 || strcmp (result, "0x3.8000000000p-1 33") == 0
296 || strcmp (result, "0x7.0000000000p-2 33") == 0
297 || strcmp (result, "0xe.0000000000p-3 33") == 0);
298 ASSERT (retval == strlen (result));
302 { /* Large precision. */
305 my_asprintf (&result, "%.50a %d", 1.75, 33, 44, 55);
306 ASSERT (result != NULL);
307 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
308 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
309 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
310 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
311 ASSERT (retval == strlen (result));
318 my_asprintf (&result, "%-10a %d", 1.75, 33, 44, 55);
319 ASSERT (result != NULL);
320 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
321 || strcmp (result, "0x3.8p-1 33") == 0
322 || strcmp (result, "0x7p-2 33") == 0
323 || strcmp (result, "0xep-3 33") == 0);
324 ASSERT (retval == strlen (result));
328 { /* FLAG_SHOWSIGN. */
331 my_asprintf (&result, "%+a %d", 1.75, 33, 44, 55);
332 ASSERT (result != NULL);
333 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
334 || strcmp (result, "+0x3.8p-1 33") == 0
335 || strcmp (result, "+0x7p-2 33") == 0
336 || strcmp (result, "+0xep-3 33") == 0);
337 ASSERT (retval == strlen (result));
344 my_asprintf (&result, "% a %d", 1.75, 33, 44, 55);
345 ASSERT (result != NULL);
346 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
347 || strcmp (result, " 0x3.8p-1 33") == 0
348 || strcmp (result, " 0x7p-2 33") == 0
349 || strcmp (result, " 0xep-3 33") == 0);
350 ASSERT (retval == strlen (result));
357 my_asprintf (&result, "%#a %d", 1.75, 33, 44, 55);
358 ASSERT (result != NULL);
359 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
360 || strcmp (result, "0x3.8p-1 33") == 0
361 || strcmp (result, "0x7.p-2 33") == 0
362 || strcmp (result, "0xe.p-3 33") == 0);
363 ASSERT (retval == strlen (result));
370 my_asprintf (&result, "%#a %d", 1.0, 33, 44, 55);
371 ASSERT (result != NULL);
372 ASSERT (strcmp (result, "0x1.p+0 33") == 0
373 || strcmp (result, "0x2.p-1 33") == 0
374 || strcmp (result, "0x4.p-2 33") == 0
375 || strcmp (result, "0x8.p-3 33") == 0);
376 ASSERT (retval == strlen (result));
380 { /* FLAG_ZERO with finite number. */
383 my_asprintf (&result, "%010a %d", 1.75, 33, 44, 55);
384 ASSERT (result != NULL);
385 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
386 || strcmp (result, "0x003.8p-1 33") == 0
387 || strcmp (result, "0x00007p-2 33") == 0
388 || strcmp (result, "0x0000ep-3 33") == 0);
389 ASSERT (retval == strlen (result));
393 { /* FLAG_ZERO with infinite number. */
396 my_asprintf (&result, "%010a %d", 1.0 / 0.0, 33, 44, 55);
397 ASSERT (result != NULL);
398 /* "0000000inf 33" is not a valid result; see
399 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
400 ASSERT (strcmp (result, " inf 33") == 0);
401 ASSERT (retval == strlen (result));
405 { /* FLAG_ZERO with NaN. */
408 my_asprintf (&result, "%010a %d", NaN (), 33, 44, 55);
409 ASSERT (result != NULL);
410 /* "0000000nan 33" is not a valid result; see
411 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
412 ASSERT (strcmp (result, " nan 33") == 0);
413 ASSERT (retval == strlen (result));
417 { /* A positive number. */
420 my_asprintf (&result, "%La %d", 3.1416015625L, 33, 44, 55);
421 ASSERT (result != NULL);
422 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
423 || strcmp (result, "0x3.244p+0 33") == 0
424 || strcmp (result, "0x6.488p-1 33") == 0
425 || strcmp (result, "0xc.91p-2 33") == 0);
426 ASSERT (retval == strlen (result));
430 { /* A negative number. */
433 my_asprintf (&result, "%LA %d", -3.1416015625L, 33, 44, 55);
434 ASSERT (result != NULL);
435 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
436 || strcmp (result, "-0X3.244P+0 33") == 0
437 || strcmp (result, "-0X6.488P-1 33") == 0
438 || strcmp (result, "-0XC.91P-2 33") == 0);
439 ASSERT (retval == strlen (result));
443 { /* Positive zero. */
446 my_asprintf (&result, "%La %d", 0.0L, 33, 44, 55);
447 ASSERT (result != NULL);
448 ASSERT (strcmp (result, "0x0p+0 33") == 0);
449 ASSERT (retval == strlen (result));
453 { /* Negative zero. */
456 my_asprintf (&result, "%La %d", -0.0L, 33, 44, 55);
457 ASSERT (result != NULL);
458 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
459 ASSERT (retval == strlen (result));
463 { /* Positive infinity. */
466 my_asprintf (&result, "%La %d", 1.0L / 0.0L, 33, 44, 55);
467 ASSERT (result != NULL);
468 ASSERT (strcmp (result, "inf 33") == 0);
469 ASSERT (retval == strlen (result));
473 { /* Negative infinity. */
476 my_asprintf (&result, "%La %d", -1.0L / 0.0L, 33, 44, 55);
477 ASSERT (result != NULL);
478 ASSERT (strcmp (result, "-inf 33") == 0);
479 ASSERT (retval == strlen (result));
486 my_asprintf (&result, "%La %d", 0.0L / 0.0L, 33, 44, 55);
487 ASSERT (result != NULL);
488 ASSERT (strcmp (result, "nan 33") == 0);
489 ASSERT (retval == strlen (result));
493 { /* Rounding near the decimal point. */
496 my_asprintf (&result, "%.0La %d", 1.5L, 33, 44, 55);
497 ASSERT (result != NULL);
498 ASSERT (strcmp (result, "0x2p+0 33") == 0
499 || strcmp (result, "0x3p-1 33") == 0
500 || strcmp (result, "0x6p-2 33") == 0
501 || strcmp (result, "0xcp-3 33") == 0);
502 ASSERT (retval == strlen (result));
506 { /* Rounding with precision 0. */
509 my_asprintf (&result, "%.0La %d", 1.51L, 33, 44, 55);
510 ASSERT (result != NULL);
511 ASSERT (strcmp (result, "0x2p+0 33") == 0
512 || strcmp (result, "0x3p-1 33") == 0
513 || strcmp (result, "0x6p-2 33") == 0
514 || strcmp (result, "0xcp-3 33") == 0);
515 ASSERT (retval == strlen (result));
519 { /* Rounding with precision 1. */
522 my_asprintf (&result, "%.1La %d", 1.51L, 33, 44, 55);
523 ASSERT (result != NULL);
524 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
525 || strcmp (result, "0x3.0p-1 33") == 0
526 || strcmp (result, "0x6.1p-2 33") == 0
527 || strcmp (result, "0xc.1p-3 33") == 0);
528 ASSERT (retval == strlen (result));
532 { /* Rounding with precision 2. */
535 my_asprintf (&result, "%.2La %d", 1.51L, 33, 44, 55);
536 ASSERT (result != NULL);
537 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
538 || strcmp (result, "0x3.05p-1 33") == 0
539 || strcmp (result, "0x6.0ap-2 33") == 0
540 || strcmp (result, "0xc.14p-3 33") == 0);
541 ASSERT (retval == strlen (result));
545 { /* Rounding with precision 3. */
548 my_asprintf (&result, "%.3La %d", 1.51L, 33, 44, 55);
549 ASSERT (result != NULL);
550 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
551 || strcmp (result, "0x3.052p-1 33") == 0
552 || strcmp (result, "0x6.0a4p-2 33") == 0
553 || strcmp (result, "0xc.148p-3 33") == 0);
554 ASSERT (retval == strlen (result));
558 { /* Rounding can turn a ...FFF into a ...000. */
561 my_asprintf (&result, "%.3La %d", 1.49999L, 33, 44, 55);
562 ASSERT (result != NULL);
563 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
564 || strcmp (result, "0x3.000p-1 33") == 0
565 || strcmp (result, "0x6.000p-2 33") == 0
566 || strcmp (result, "0xc.000p-3 33") == 0);
567 ASSERT (retval == strlen (result));
571 { /* Rounding can turn a ...FFF into a ...000.
572 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
573 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
576 my_asprintf (&result, "%.1La %d", 1.999L, 33, 44, 55);
577 ASSERT (result != NULL);
578 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
579 || strcmp (result, "0x2.0p+0 33") == 0
580 || strcmp (result, "0x4.0p-1 33") == 0
581 || strcmp (result, "0x8.0p-2 33") == 0);
582 ASSERT (retval == strlen (result));
589 my_asprintf (&result, "%10La %d", 1.75L, 33, 44, 55);
590 ASSERT (result != NULL);
591 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
592 || strcmp (result, " 0x3.8p-1 33") == 0
593 || strcmp (result, " 0x7p-2 33") == 0
594 || strcmp (result, " 0xep-3 33") == 0);
595 ASSERT (retval == strlen (result));
599 { /* Small precision. */
602 my_asprintf (&result, "%.10La %d", 1.75L, 33, 44, 55);
603 ASSERT (result != NULL);
604 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
605 || strcmp (result, "0x3.8000000000p-1 33") == 0
606 || strcmp (result, "0x7.0000000000p-2 33") == 0
607 || strcmp (result, "0xe.0000000000p-3 33") == 0);
608 ASSERT (retval == strlen (result));
612 { /* Large precision. */
615 my_asprintf (&result, "%.50La %d", 1.75L, 33, 44, 55);
616 ASSERT (result != NULL);
617 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
618 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
619 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
620 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
621 ASSERT (retval == strlen (result));
628 my_asprintf (&result, "%-10La %d", 1.75L, 33, 44, 55);
629 ASSERT (result != NULL);
630 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
631 || strcmp (result, "0x3.8p-1 33") == 0
632 || strcmp (result, "0x7p-2 33") == 0
633 || strcmp (result, "0xep-3 33") == 0);
634 ASSERT (retval == strlen (result));
638 { /* FLAG_SHOWSIGN. */
641 my_asprintf (&result, "%+La %d", 1.75L, 33, 44, 55);
642 ASSERT (result != NULL);
643 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
644 || strcmp (result, "+0x3.8p-1 33") == 0
645 || strcmp (result, "+0x7p-2 33") == 0
646 || strcmp (result, "+0xep-3 33") == 0);
647 ASSERT (retval == strlen (result));
654 my_asprintf (&result, "% La %d", 1.75L, 33, 44, 55);
655 ASSERT (result != NULL);
656 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
657 || strcmp (result, " 0x3.8p-1 33") == 0
658 || strcmp (result, " 0x7p-2 33") == 0
659 || strcmp (result, " 0xep-3 33") == 0);
660 ASSERT (retval == strlen (result));
667 my_asprintf (&result, "%#La %d", 1.75L, 33, 44, 55);
668 ASSERT (result != NULL);
669 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
670 || strcmp (result, "0x3.8p-1 33") == 0
671 || strcmp (result, "0x7.p-2 33") == 0
672 || strcmp (result, "0xe.p-3 33") == 0);
673 ASSERT (retval == strlen (result));
680 my_asprintf (&result, "%#La %d", 1.0L, 33, 44, 55);
681 ASSERT (result != NULL);
682 ASSERT (strcmp (result, "0x1.p+0 33") == 0
683 || strcmp (result, "0x2.p-1 33") == 0
684 || strcmp (result, "0x4.p-2 33") == 0
685 || strcmp (result, "0x8.p-3 33") == 0);
686 ASSERT (retval == strlen (result));
690 { /* FLAG_ZERO with finite number. */
693 my_asprintf (&result, "%010La %d", 1.75L, 33, 44, 55);
694 ASSERT (result != NULL);
695 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
696 || strcmp (result, "0x003.8p-1 33") == 0
697 || strcmp (result, "0x00007p-2 33") == 0
698 || strcmp (result, "0x0000ep-3 33") == 0);
699 ASSERT (retval == strlen (result));
703 { /* FLAG_ZERO with infinite number. */
706 my_asprintf (&result, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
707 ASSERT (result != NULL);
708 /* "0000000inf 33" is not a valid result; see
709 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
710 ASSERT (strcmp (result, " inf 33") == 0);
711 ASSERT (retval == strlen (result));
715 { /* FLAG_ZERO with NaN. */
718 my_asprintf (&result, "%010La %d", 0.0L / 0.0L, 33, 44, 55);
719 ASSERT (result != NULL);
720 /* "0000000nan 33" is not a valid result; see
721 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
722 ASSERT (strcmp (result, " nan 33") == 0);
723 ASSERT (retval == strlen (result));
727 /* Test the support of the %n format directive. */
733 my_asprintf (&result, "%d %n", 123, &count, 33, 44, 55);
734 ASSERT (result != NULL);
735 ASSERT (strcmp (result, "123 ") == 0);
736 ASSERT (retval == strlen (result));
741 /* Test the support of the POSIX/XSI format strings with positions. */
746 my_asprintf (&result, "%2$d %1$d", 33, 55);
747 ASSERT (result != NULL);
748 ASSERT (strcmp (result, "55 33") == 0);
749 ASSERT (retval == strlen (result));
755 my_asprintf (char **result, const char *format, ...)
760 va_start (args, format);
761 ret = vasprintf (result, format, args);
769 test_function (my_asprintf);
775 test_function (asprintf);
779 main (int argc, char *argv[])