1 /* Test of POSIX compatible vsnprintf() and snprintf() functions.
2 Copyright (C) 2007-2008 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 3 of the License, or
7 (at your option) any later version.
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, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
21 /* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0. */
25 static double plus_zero = 0.0;
26 double minus_zero = - plus_zero;
27 return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
30 /* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
31 So we use -zero instead. */
34 /* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
35 So we use -zero instead. */
36 long double zerol = 0.0L;
38 /* Representation of an 80-bit 'long double' as an initializer for a sequence
39 of 'unsigned int' words. */
40 #ifdef WORDS_BIGENDIAN
41 # define LDBL80_WORDS(exponent,manthi,mantlo) \
42 { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
43 ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \
44 (unsigned int) (mantlo) << 16 \
47 # define LDBL80_WORDS(exponent,manthi,mantlo) \
48 { mantlo, manthi, exponent }
52 strmatch (const char *pattern, const char *string)
54 if (strlen (pattern) != strlen (string))
56 for (; *pattern != '\0'; pattern++, string++)
57 if (*pattern != '*' && *string != *pattern)
62 /* Test whether string[start_index..end_index-1] is a valid textual
63 representation of NaN. */
65 strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
67 if (start_index < end_index)
69 if (string[start_index] == '-')
71 if (start_index + 3 <= end_index
72 && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
75 if (start_index == end_index
76 || (string[start_index] == '(' && string[end_index - 1] == ')'))
84 test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
89 /* Test return value convention. */
91 for (size = 0; size <= 8; size++)
95 memcpy (buf, "DEADBEEF", 8);
96 retval = my_snprintf (buf, size, "%d", 12345);
102 ASSERT (memcmp (buf, "12345", size - 1) == 0);
103 ASSERT (buf[size - 1] == '\0');
105 ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
109 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
113 /* Test support of size specifiers as in C99. */
118 my_snprintf (result, sizeof (result), "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
119 ASSERT (strcmp (result, "12345671 33") == 0);
120 ASSERT (retval == strlen (result));
126 my_snprintf (result, sizeof (result), "%zu %d", (size_t) 12345672, 33, 44, 55);
127 ASSERT (strcmp (result, "12345672 33") == 0);
128 ASSERT (retval == strlen (result));
134 my_snprintf (result, sizeof (result), "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
135 ASSERT (strcmp (result, "12345673 33") == 0);
136 ASSERT (retval == strlen (result));
142 my_snprintf (result, sizeof (result), "%Lg %d", (long double) 1.5, 33, 44, 55);
143 ASSERT (strcmp (result, "1.5 33") == 0);
144 ASSERT (retval == strlen (result));
147 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
148 output of floating-point numbers. */
150 { /* A positive number. */
153 my_snprintf (result, sizeof (result), "%a %d", 3.1416015625, 33, 44, 55);
154 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
155 || strcmp (result, "0x3.244p+0 33") == 0
156 || strcmp (result, "0x6.488p-1 33") == 0
157 || strcmp (result, "0xc.91p-2 33") == 0);
158 ASSERT (retval == strlen (result));
161 { /* A negative number. */
164 my_snprintf (result, sizeof (result), "%A %d", -3.1416015625, 33, 44, 55);
165 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
166 || strcmp (result, "-0X3.244P+0 33") == 0
167 || strcmp (result, "-0X6.488P-1 33") == 0
168 || strcmp (result, "-0XC.91P-2 33") == 0);
169 ASSERT (retval == strlen (result));
172 { /* Positive zero. */
175 my_snprintf (result, sizeof (result), "%a %d", 0.0, 33, 44, 55);
176 ASSERT (strcmp (result, "0x0p+0 33") == 0);
177 ASSERT (retval == strlen (result));
180 { /* Negative zero. */
183 my_snprintf (result, sizeof (result), "%a %d", -zerod, 33, 44, 55);
184 if (have_minus_zero ())
185 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
186 ASSERT (retval == strlen (result));
189 { /* Positive infinity. */
192 my_snprintf (result, sizeof (result), "%a %d", 1.0 / 0.0, 33, 44, 55);
193 ASSERT (strcmp (result, "inf 33") == 0);
194 ASSERT (retval == strlen (result));
197 { /* Negative infinity. */
200 my_snprintf (result, sizeof (result), "%a %d", -1.0 / 0.0, 33, 44, 55);
201 ASSERT (strcmp (result, "-inf 33") == 0);
202 ASSERT (retval == strlen (result));
208 my_snprintf (result, sizeof (result), "%a %d", NaNd (), 33, 44, 55);
209 ASSERT (strlen (result) >= 3 + 3
210 && strisnan (result, 0, strlen (result) - 3, 0)
211 && strcmp (result + strlen (result) - 3, " 33") == 0);
212 ASSERT (retval == strlen (result));
215 { /* Rounding near the decimal point. */
218 my_snprintf (result, sizeof (result), "%.0a %d", 1.5, 33, 44, 55);
219 ASSERT (strcmp (result, "0x2p+0 33") == 0
220 || strcmp (result, "0x3p-1 33") == 0
221 || strcmp (result, "0x6p-2 33") == 0
222 || strcmp (result, "0xcp-3 33") == 0);
223 ASSERT (retval == strlen (result));
226 { /* Rounding with precision 0. */
229 my_snprintf (result, sizeof (result), "%.0a %d", 1.51, 33, 44, 55);
230 ASSERT (strcmp (result, "0x2p+0 33") == 0
231 || strcmp (result, "0x3p-1 33") == 0
232 || strcmp (result, "0x6p-2 33") == 0
233 || strcmp (result, "0xcp-3 33") == 0);
234 ASSERT (retval == strlen (result));
237 { /* Rounding with precision 1. */
240 my_snprintf (result, sizeof (result), "%.1a %d", 1.51, 33, 44, 55);
241 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
242 || strcmp (result, "0x3.0p-1 33") == 0
243 || strcmp (result, "0x6.1p-2 33") == 0
244 || strcmp (result, "0xc.1p-3 33") == 0);
245 ASSERT (retval == strlen (result));
248 { /* Rounding with precision 2. */
251 my_snprintf (result, sizeof (result), "%.2a %d", 1.51, 33, 44, 55);
252 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
253 || strcmp (result, "0x3.05p-1 33") == 0
254 || strcmp (result, "0x6.0ap-2 33") == 0
255 || strcmp (result, "0xc.14p-3 33") == 0);
256 ASSERT (retval == strlen (result));
259 { /* Rounding with precision 3. */
262 my_snprintf (result, sizeof (result), "%.3a %d", 1.51, 33, 44, 55);
263 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
264 || strcmp (result, "0x3.052p-1 33") == 0
265 || strcmp (result, "0x6.0a4p-2 33") == 0
266 || strcmp (result, "0xc.148p-3 33") == 0);
267 ASSERT (retval == strlen (result));
270 { /* Rounding can turn a ...FFF into a ...000. */
273 my_snprintf (result, sizeof (result), "%.3a %d", 1.49999, 33, 44, 55);
274 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
275 || strcmp (result, "0x3.000p-1 33") == 0
276 || strcmp (result, "0x6.000p-2 33") == 0
277 || strcmp (result, "0xc.000p-3 33") == 0);
278 ASSERT (retval == strlen (result));
281 { /* Rounding can turn a ...FFF into a ...000.
282 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
285 my_snprintf (result, sizeof (result), "%.1a %d", 1.999, 33, 44, 55);
286 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
287 || strcmp (result, "0x2.0p+0 33") == 0
288 || strcmp (result, "0x4.0p-1 33") == 0
289 || strcmp (result, "0x8.0p-2 33") == 0);
290 ASSERT (retval == strlen (result));
296 my_snprintf (result, sizeof (result), "%10a %d", 1.75, 33, 44, 55);
297 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
298 || strcmp (result, " 0x3.8p-1 33") == 0
299 || strcmp (result, " 0x7p-2 33") == 0
300 || strcmp (result, " 0xep-3 33") == 0);
301 ASSERT (retval == strlen (result));
304 { /* Small precision. */
307 my_snprintf (result, sizeof (result), "%.10a %d", 1.75, 33, 44, 55);
308 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
309 || strcmp (result, "0x3.8000000000p-1 33") == 0
310 || strcmp (result, "0x7.0000000000p-2 33") == 0
311 || strcmp (result, "0xe.0000000000p-3 33") == 0);
312 ASSERT (retval == strlen (result));
315 { /* Large precision. */
318 my_snprintf (result, sizeof (result), "%.50a %d", 1.75, 33, 44, 55);
319 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
320 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
321 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
322 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
323 ASSERT (retval == strlen (result));
329 my_snprintf (result, sizeof (result), "%-10a %d", 1.75, 33, 44, 55);
330 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
331 || strcmp (result, "0x3.8p-1 33") == 0
332 || strcmp (result, "0x7p-2 33") == 0
333 || strcmp (result, "0xep-3 33") == 0);
334 ASSERT (retval == strlen (result));
337 { /* FLAG_SHOWSIGN. */
340 my_snprintf (result, sizeof (result), "%+a %d", 1.75, 33, 44, 55);
341 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
342 || strcmp (result, "+0x3.8p-1 33") == 0
343 || strcmp (result, "+0x7p-2 33") == 0
344 || strcmp (result, "+0xep-3 33") == 0);
345 ASSERT (retval == strlen (result));
351 my_snprintf (result, sizeof (result), "% a %d", 1.75, 33, 44, 55);
352 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
353 || strcmp (result, " 0x3.8p-1 33") == 0
354 || strcmp (result, " 0x7p-2 33") == 0
355 || strcmp (result, " 0xep-3 33") == 0);
356 ASSERT (retval == strlen (result));
362 my_snprintf (result, sizeof (result), "%#a %d", 1.75, 33, 44, 55);
363 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
364 || strcmp (result, "0x3.8p-1 33") == 0
365 || strcmp (result, "0x7.p-2 33") == 0
366 || strcmp (result, "0xe.p-3 33") == 0);
367 ASSERT (retval == strlen (result));
373 my_snprintf (result, sizeof (result), "%#a %d", 1.0, 33, 44, 55);
374 ASSERT (strcmp (result, "0x1.p+0 33") == 0
375 || strcmp (result, "0x2.p-1 33") == 0
376 || strcmp (result, "0x4.p-2 33") == 0
377 || strcmp (result, "0x8.p-3 33") == 0);
378 ASSERT (retval == strlen (result));
381 { /* FLAG_ZERO with finite number. */
384 my_snprintf (result, sizeof (result), "%010a %d", 1.75, 33, 44, 55);
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));
392 { /* FLAG_ZERO with infinite number. */
395 my_snprintf (result, sizeof (result), "%010a %d", 1.0 / 0.0, 33, 44, 55);
396 /* "0000000inf 33" is not a valid result; see
397 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
398 ASSERT (strcmp (result, " inf 33") == 0);
399 ASSERT (retval == strlen (result));
402 { /* FLAG_ZERO with NaN. */
405 my_snprintf (result, sizeof (result), "%050a %d", NaNd (), 33, 44, 55);
406 /* "0000000nan 33" is not a valid result; see
407 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
408 ASSERT (strlen (result) == 50 + 3
409 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
410 && strcmp (result + strlen (result) - 3, " 33") == 0);
411 ASSERT (retval == strlen (result));
414 { /* A positive number. */
417 my_snprintf (result, sizeof (result), "%La %d", 3.1416015625L, 33, 44, 55);
418 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
419 || strcmp (result, "0x3.244p+0 33") == 0
420 || strcmp (result, "0x6.488p-1 33") == 0
421 || strcmp (result, "0xc.91p-2 33") == 0);
422 ASSERT (retval == strlen (result));
425 { /* A negative number. */
428 my_snprintf (result, sizeof (result), "%LA %d", -3.1416015625L, 33, 44, 55);
429 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
430 || strcmp (result, "-0X3.244P+0 33") == 0
431 || strcmp (result, "-0X6.488P-1 33") == 0
432 || strcmp (result, "-0XC.91P-2 33") == 0);
433 ASSERT (retval == strlen (result));
436 { /* Positive zero. */
439 my_snprintf (result, sizeof (result), "%La %d", 0.0L, 33, 44, 55);
440 ASSERT (strcmp (result, "0x0p+0 33") == 0);
441 ASSERT (retval == strlen (result));
444 { /* Negative zero. */
447 my_snprintf (result, sizeof (result), "%La %d", -zerol, 33, 44, 55);
448 if (have_minus_zero ())
449 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
450 ASSERT (retval == strlen (result));
453 { /* Positive infinity. */
456 my_snprintf (result, sizeof (result), "%La %d", 1.0L / 0.0L, 33, 44, 55);
457 ASSERT (strcmp (result, "inf 33") == 0);
458 ASSERT (retval == strlen (result));
461 { /* Negative infinity. */
464 my_snprintf (result, sizeof (result), "%La %d", -1.0L / 0.0L, 33, 44, 55);
465 ASSERT (strcmp (result, "-inf 33") == 0);
466 ASSERT (retval == strlen (result));
472 my_snprintf (result, sizeof (result), "%La %d", NaNl (), 33, 44, 55);
473 ASSERT (strlen (result) >= 3 + 3
474 && strisnan (result, 0, strlen (result) - 3, 0)
475 && strcmp (result + strlen (result) - 3, " 33") == 0);
476 ASSERT (retval == strlen (result));
478 #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_))
480 static union { unsigned int word[4]; long double value; } x =
481 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
484 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
485 ASSERT (strlen (result) >= 3 + 3
486 && strisnan (result, 0, strlen (result) - 3, 0)
487 && strcmp (result + strlen (result) - 3, " 33") == 0);
488 ASSERT (retval == strlen (result));
491 /* Signalling NaN. */
492 static union { unsigned int word[4]; long double value; } x =
493 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
496 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
497 ASSERT (strlen (result) >= 3 + 3
498 && strisnan (result, 0, strlen (result) - 3, 0)
499 && strcmp (result + strlen (result) - 3, " 33") == 0);
500 ASSERT (retval == strlen (result));
502 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
503 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
504 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
505 Application Architecture.
506 Table 5-2 "Floating-Point Register Encodings"
507 Figure 5-6 "Memory to Floating-Point Register Data Translation"
510 static union { unsigned int word[4]; long double value; } x =
511 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
514 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
515 ASSERT (strlen (result) >= 3 + 3
516 && strisnan (result, 0, strlen (result) - 3, 0)
517 && strcmp (result + strlen (result) - 3, " 33") == 0);
518 ASSERT (retval == strlen (result));
520 { /* Pseudo-Infinity. */
521 static union { unsigned int word[4]; long double value; } x =
522 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
525 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
526 ASSERT (strlen (result) >= 3 + 3
527 && strisnan (result, 0, strlen (result) - 3, 0)
528 && strcmp (result + strlen (result) - 3, " 33") == 0);
529 ASSERT (retval == strlen (result));
532 static union { unsigned int word[4]; long double value; } x =
533 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
536 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
537 ASSERT (strlen (result) >= 3 + 3
538 && strisnan (result, 0, strlen (result) - 3, 0)
539 && strcmp (result + strlen (result) - 3, " 33") == 0);
540 ASSERT (retval == strlen (result));
542 { /* Unnormalized number. */
543 static union { unsigned int word[4]; long double value; } x =
544 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
547 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
548 ASSERT (strlen (result) >= 3 + 3
549 && strisnan (result, 0, strlen (result) - 3, 0)
550 && strcmp (result + strlen (result) - 3, " 33") == 0);
551 ASSERT (retval == strlen (result));
553 { /* Pseudo-Denormal. */
554 static union { unsigned int word[4]; long double value; } x =
555 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
558 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
559 ASSERT (strlen (result) >= 3 + 3
560 && strisnan (result, 0, strlen (result) - 3, 0)
561 && strcmp (result + strlen (result) - 3, " 33") == 0);
562 ASSERT (retval == strlen (result));
566 { /* Rounding near the decimal point. */
569 my_snprintf (result, sizeof (result), "%.0La %d", 1.5L, 33, 44, 55);
570 ASSERT (strcmp (result, "0x2p+0 33") == 0
571 || strcmp (result, "0x3p-1 33") == 0
572 || strcmp (result, "0x6p-2 33") == 0
573 || strcmp (result, "0xcp-3 33") == 0);
574 ASSERT (retval == strlen (result));
577 { /* Rounding with precision 0. */
580 my_snprintf (result, sizeof (result), "%.0La %d", 1.51L, 33, 44, 55);
581 ASSERT (strcmp (result, "0x2p+0 33") == 0
582 || strcmp (result, "0x3p-1 33") == 0
583 || strcmp (result, "0x6p-2 33") == 0
584 || strcmp (result, "0xcp-3 33") == 0);
585 ASSERT (retval == strlen (result));
588 { /* Rounding with precision 1. */
591 my_snprintf (result, sizeof (result), "%.1La %d", 1.51L, 33, 44, 55);
592 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
593 || strcmp (result, "0x3.0p-1 33") == 0
594 || strcmp (result, "0x6.1p-2 33") == 0
595 || strcmp (result, "0xc.1p-3 33") == 0);
596 ASSERT (retval == strlen (result));
599 { /* Rounding with precision 2. */
602 my_snprintf (result, sizeof (result), "%.2La %d", 1.51L, 33, 44, 55);
603 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
604 || strcmp (result, "0x3.05p-1 33") == 0
605 || strcmp (result, "0x6.0ap-2 33") == 0
606 || strcmp (result, "0xc.14p-3 33") == 0);
607 ASSERT (retval == strlen (result));
610 { /* Rounding with precision 3. */
613 my_snprintf (result, sizeof (result), "%.3La %d", 1.51L, 33, 44, 55);
614 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
615 || strcmp (result, "0x3.052p-1 33") == 0
616 || strcmp (result, "0x6.0a4p-2 33") == 0
617 || strcmp (result, "0xc.148p-3 33") == 0);
618 ASSERT (retval == strlen (result));
621 { /* Rounding can turn a ...FFF into a ...000. */
624 my_snprintf (result, sizeof (result), "%.3La %d", 1.49999L, 33, 44, 55);
625 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
626 || strcmp (result, "0x3.000p-1 33") == 0
627 || strcmp (result, "0x6.000p-2 33") == 0
628 || strcmp (result, "0xc.000p-3 33") == 0);
629 ASSERT (retval == strlen (result));
632 { /* Rounding can turn a ...FFF into a ...000.
633 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
634 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
637 my_snprintf (result, sizeof (result), "%.1La %d", 1.999L, 33, 44, 55);
638 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
639 || strcmp (result, "0x2.0p+0 33") == 0
640 || strcmp (result, "0x4.0p-1 33") == 0
641 || strcmp (result, "0x8.0p-2 33") == 0);
642 ASSERT (retval == strlen (result));
648 my_snprintf (result, sizeof (result), "%10La %d", 1.75L, 33, 44, 55);
649 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
650 || strcmp (result, " 0x3.8p-1 33") == 0
651 || strcmp (result, " 0x7p-2 33") == 0
652 || strcmp (result, " 0xep-3 33") == 0);
653 ASSERT (retval == strlen (result));
656 { /* Small precision. */
659 my_snprintf (result, sizeof (result), "%.10La %d", 1.75L, 33, 44, 55);
660 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
661 || strcmp (result, "0x3.8000000000p-1 33") == 0
662 || strcmp (result, "0x7.0000000000p-2 33") == 0
663 || strcmp (result, "0xe.0000000000p-3 33") == 0);
664 ASSERT (retval == strlen (result));
667 { /* Large precision. */
670 my_snprintf (result, sizeof (result), "%.50La %d", 1.75L, 33, 44, 55);
671 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
672 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
673 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
674 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
675 ASSERT (retval == strlen (result));
681 my_snprintf (result, sizeof (result), "%-10La %d", 1.75L, 33, 44, 55);
682 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
683 || strcmp (result, "0x3.8p-1 33") == 0
684 || strcmp (result, "0x7p-2 33") == 0
685 || strcmp (result, "0xep-3 33") == 0);
686 ASSERT (retval == strlen (result));
689 { /* FLAG_SHOWSIGN. */
692 my_snprintf (result, sizeof (result), "%+La %d", 1.75L, 33, 44, 55);
693 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
694 || strcmp (result, "+0x3.8p-1 33") == 0
695 || strcmp (result, "+0x7p-2 33") == 0
696 || strcmp (result, "+0xep-3 33") == 0);
697 ASSERT (retval == strlen (result));
703 my_snprintf (result, sizeof (result), "% La %d", 1.75L, 33, 44, 55);
704 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
705 || strcmp (result, " 0x3.8p-1 33") == 0
706 || strcmp (result, " 0x7p-2 33") == 0
707 || strcmp (result, " 0xep-3 33") == 0);
708 ASSERT (retval == strlen (result));
714 my_snprintf (result, sizeof (result), "%#La %d", 1.75L, 33, 44, 55);
715 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
716 || strcmp (result, "0x3.8p-1 33") == 0
717 || strcmp (result, "0x7.p-2 33") == 0
718 || strcmp (result, "0xe.p-3 33") == 0);
719 ASSERT (retval == strlen (result));
725 my_snprintf (result, sizeof (result), "%#La %d", 1.0L, 33, 44, 55);
726 ASSERT (strcmp (result, "0x1.p+0 33") == 0
727 || strcmp (result, "0x2.p-1 33") == 0
728 || strcmp (result, "0x4.p-2 33") == 0
729 || strcmp (result, "0x8.p-3 33") == 0);
730 ASSERT (retval == strlen (result));
733 { /* FLAG_ZERO with finite number. */
736 my_snprintf (result, sizeof (result), "%010La %d", 1.75L, 33, 44, 55);
737 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
738 || strcmp (result, "0x003.8p-1 33") == 0
739 || strcmp (result, "0x00007p-2 33") == 0
740 || strcmp (result, "0x0000ep-3 33") == 0);
741 ASSERT (retval == strlen (result));
744 { /* FLAG_ZERO with infinite number. */
747 my_snprintf (result, sizeof (result), "%010La %d", 1.0L / 0.0L, 33, 44, 55);
748 /* "0000000inf 33" is not a valid result; see
749 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
750 ASSERT (strcmp (result, " inf 33") == 0);
751 ASSERT (retval == strlen (result));
754 { /* FLAG_ZERO with NaN. */
757 my_snprintf (result, sizeof (result), "%050La %d", NaNl (), 33, 44, 55);
758 /* "0000000nan 33" is not a valid result; see
759 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
760 ASSERT (strlen (result) == 50 + 3
761 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
762 && strcmp (result + strlen (result) - 3, " 33") == 0);
763 ASSERT (retval == strlen (result));
766 /* Test the support of the %f format directive. */
768 { /* A positive number. */
771 my_snprintf (result, sizeof (result), "%f %d", 12.75, 33, 44, 55);
772 ASSERT (strcmp (result, "12.750000 33") == 0);
773 ASSERT (retval == strlen (result));
776 { /* A larger positive number. */
779 my_snprintf (result, sizeof (result), "%f %d", 1234567.0, 33, 44, 55);
780 ASSERT (strcmp (result, "1234567.000000 33") == 0);
781 ASSERT (retval == strlen (result));
784 { /* Small and large positive numbers. */
785 static struct { double value; const char *string; } data[] =
787 { 1.234321234321234e-37, "0.000000" },
788 { 1.234321234321234e-36, "0.000000" },
789 { 1.234321234321234e-35, "0.000000" },
790 { 1.234321234321234e-34, "0.000000" },
791 { 1.234321234321234e-33, "0.000000" },
792 { 1.234321234321234e-32, "0.000000" },
793 { 1.234321234321234e-31, "0.000000" },
794 { 1.234321234321234e-30, "0.000000" },
795 { 1.234321234321234e-29, "0.000000" },
796 { 1.234321234321234e-28, "0.000000" },
797 { 1.234321234321234e-27, "0.000000" },
798 { 1.234321234321234e-26, "0.000000" },
799 { 1.234321234321234e-25, "0.000000" },
800 { 1.234321234321234e-24, "0.000000" },
801 { 1.234321234321234e-23, "0.000000" },
802 { 1.234321234321234e-22, "0.000000" },
803 { 1.234321234321234e-21, "0.000000" },
804 { 1.234321234321234e-20, "0.000000" },
805 { 1.234321234321234e-19, "0.000000" },
806 { 1.234321234321234e-18, "0.000000" },
807 { 1.234321234321234e-17, "0.000000" },
808 { 1.234321234321234e-16, "0.000000" },
809 { 1.234321234321234e-15, "0.000000" },
810 { 1.234321234321234e-14, "0.000000" },
811 { 1.234321234321234e-13, "0.000000" },
812 { 1.234321234321234e-12, "0.000000" },
813 { 1.234321234321234e-11, "0.000000" },
814 { 1.234321234321234e-10, "0.000000" },
815 { 1.234321234321234e-9, "0.000000" },
816 { 1.234321234321234e-8, "0.000000" },
817 { 1.234321234321234e-7, "0.000000" },
818 { 1.234321234321234e-6, "0.000001" },
819 { 1.234321234321234e-5, "0.000012" },
820 { 1.234321234321234e-4, "0.000123" },
821 { 1.234321234321234e-3, "0.001234" },
822 { 1.234321234321234e-2, "0.012343" },
823 { 1.234321234321234e-1, "0.123432" },
824 { 1.234321234321234, "1.234321" },
825 { 1.234321234321234e1, "12.343212" },
826 { 1.234321234321234e2, "123.432123" },
827 { 1.234321234321234e3, "1234.321234" },
828 { 1.234321234321234e4, "12343.212343" },
829 { 1.234321234321234e5, "123432.123432" },
830 { 1.234321234321234e6, "1234321.234321" },
831 { 1.234321234321234e7, "12343212.343212" },
832 { 1.234321234321234e8, "123432123.432123" },
833 { 1.234321234321234e9, "1234321234.321234" },
834 { 1.234321234321234e10, "12343212343.2123**" },
835 { 1.234321234321234e11, "123432123432.123***" },
836 { 1.234321234321234e12, "1234321234321.23****" },
837 { 1.234321234321234e13, "12343212343212.3*****" },
838 { 1.234321234321234e14, "123432123432123.******" },
839 { 1.234321234321234e15, "1234321234321234.000000" },
840 { 1.234321234321234e16, "123432123432123**.000000" },
841 { 1.234321234321234e17, "123432123432123***.000000" },
842 { 1.234321234321234e18, "123432123432123****.000000" },
843 { 1.234321234321234e19, "123432123432123*****.000000" },
844 { 1.234321234321234e20, "123432123432123******.000000" },
845 { 1.234321234321234e21, "123432123432123*******.000000" },
846 { 1.234321234321234e22, "123432123432123********.000000" },
847 { 1.234321234321234e23, "123432123432123*********.000000" },
848 { 1.234321234321234e24, "123432123432123**********.000000" },
849 { 1.234321234321234e25, "123432123432123***********.000000" },
850 { 1.234321234321234e26, "123432123432123************.000000" },
851 { 1.234321234321234e27, "123432123432123*************.000000" },
852 { 1.234321234321234e28, "123432123432123**************.000000" },
853 { 1.234321234321234e29, "123432123432123***************.000000" },
854 { 1.234321234321234e30, "123432123432123****************.000000" },
855 { 1.234321234321234e31, "123432123432123*****************.000000" },
856 { 1.234321234321234e32, "123432123432123******************.000000" },
857 { 1.234321234321234e33, "123432123432123*******************.000000" },
858 { 1.234321234321234e34, "123432123432123********************.000000" },
859 { 1.234321234321234e35, "123432123432123*********************.000000" },
860 { 1.234321234321234e36, "123432123432123**********************.000000" }
863 for (k = 0; k < SIZEOF (data); k++)
867 my_snprintf (result, sizeof (result), "%f", data[k].value);
868 ASSERT (strmatch (data[k].string, result));
869 ASSERT (retval == strlen (result));
873 { /* A negative number. */
876 my_snprintf (result, sizeof (result), "%f %d", -0.03125, 33, 44, 55);
877 ASSERT (strcmp (result, "-0.031250 33") == 0);
878 ASSERT (retval == strlen (result));
881 { /* Positive zero. */
884 my_snprintf (result, sizeof (result), "%f %d", 0.0, 33, 44, 55);
885 ASSERT (strcmp (result, "0.000000 33") == 0);
886 ASSERT (retval == strlen (result));
889 { /* Negative zero. */
892 my_snprintf (result, sizeof (result), "%f %d", -zerod, 33, 44, 55);
893 if (have_minus_zero ())
894 ASSERT (strcmp (result, "-0.000000 33") == 0);
895 ASSERT (retval == strlen (result));
898 { /* Positive infinity. */
901 my_snprintf (result, sizeof (result), "%f %d", 1.0 / 0.0, 33, 44, 55);
902 ASSERT (strcmp (result, "inf 33") == 0
903 || strcmp (result, "infinity 33") == 0);
904 ASSERT (retval == strlen (result));
907 { /* Negative infinity. */
910 my_snprintf (result, sizeof (result), "%f %d", -1.0 / 0.0, 33, 44, 55);
911 ASSERT (strcmp (result, "-inf 33") == 0
912 || strcmp (result, "-infinity 33") == 0);
913 ASSERT (retval == strlen (result));
919 my_snprintf (result, sizeof (result), "%f %d", NaNd (), 33, 44, 55);
920 ASSERT (strlen (result) >= 3 + 3
921 && strisnan (result, 0, strlen (result) - 3, 0)
922 && strcmp (result + strlen (result) - 3, " 33") == 0);
923 ASSERT (retval == strlen (result));
929 my_snprintf (result, sizeof (result), "%10f %d", 1.75, 33, 44, 55);
930 ASSERT (result != NULL);
931 ASSERT (strcmp (result, " 1.750000 33") == 0);
932 ASSERT (retval == strlen (result));
938 my_snprintf (result, sizeof (result), "%-10f %d", 1.75, 33, 44, 55);
939 ASSERT (result != NULL);
940 ASSERT (strcmp (result, "1.750000 33") == 0);
941 ASSERT (retval == strlen (result));
944 { /* FLAG_SHOWSIGN. */
947 my_snprintf (result, sizeof (result), "%+f %d", 1.75, 33, 44, 55);
948 ASSERT (result != NULL);
949 ASSERT (strcmp (result, "+1.750000 33") == 0);
950 ASSERT (retval == strlen (result));
956 my_snprintf (result, sizeof (result), "% f %d", 1.75, 33, 44, 55);
957 ASSERT (result != NULL);
958 ASSERT (strcmp (result, " 1.750000 33") == 0);
959 ASSERT (retval == strlen (result));
965 my_snprintf (result, sizeof (result), "%#f %d", 1.75, 33, 44, 55);
966 ASSERT (result != NULL);
967 ASSERT (strcmp (result, "1.750000 33") == 0);
968 ASSERT (retval == strlen (result));
974 my_snprintf (result, sizeof (result), "%#.f %d", 1.75, 33, 44, 55);
975 ASSERT (result != NULL);
976 ASSERT (strcmp (result, "2. 33") == 0);
977 ASSERT (retval == strlen (result));
980 { /* FLAG_ZERO with finite number. */
983 my_snprintf (result, sizeof (result), "%015f %d", 1234.0, 33, 44, 55);
984 ASSERT (strcmp (result, "00001234.000000 33") == 0);
985 ASSERT (retval == strlen (result));
988 { /* FLAG_ZERO with infinite number. */
991 my_snprintf (result, sizeof (result), "%015f %d", -1.0 / 0.0, 33, 44, 55);
992 ASSERT (strcmp (result, " -inf 33") == 0
993 || strcmp (result, " -infinity 33") == 0);
994 ASSERT (retval == strlen (result));
997 { /* FLAG_ZERO with NaN. */
1000 my_snprintf (result, sizeof (result), "%050f %d", NaNd (), 33, 44, 55);
1001 ASSERT (strlen (result) == 50 + 3
1002 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1003 && strcmp (result + strlen (result) - 3, " 33") == 0);
1004 ASSERT (retval == strlen (result));
1010 my_snprintf (result, sizeof (result), "%.f %d", 1234.0, 33, 44, 55);
1011 ASSERT (strcmp (result, "1234 33") == 0);
1012 ASSERT (retval == strlen (result));
1015 { /* Precision with no rounding. */
1018 my_snprintf (result, sizeof (result), "%.2f %d", 999.951, 33, 44, 55);
1019 ASSERT (strcmp (result, "999.95 33") == 0);
1020 ASSERT (retval == strlen (result));
1023 { /* Precision with rounding. */
1026 my_snprintf (result, sizeof (result), "%.2f %d", 999.996, 33, 44, 55);
1027 ASSERT (strcmp (result, "1000.00 33") == 0);
1028 ASSERT (retval == strlen (result));
1031 { /* A positive number. */
1034 my_snprintf (result, sizeof (result), "%Lf %d", 12.75L, 33, 44, 55);
1035 ASSERT (strcmp (result, "12.750000 33") == 0);
1036 ASSERT (retval == strlen (result));
1039 { /* A larger positive number. */
1042 my_snprintf (result, sizeof (result), "%Lf %d", 1234567.0L, 33, 44, 55);
1043 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1044 ASSERT (retval == strlen (result));
1047 { /* Small and large positive numbers. */
1048 static struct { long double value; const char *string; } data[] =
1050 { 1.234321234321234e-37L, "0.000000" },
1051 { 1.234321234321234e-36L, "0.000000" },
1052 { 1.234321234321234e-35L, "0.000000" },
1053 { 1.234321234321234e-34L, "0.000000" },
1054 { 1.234321234321234e-33L, "0.000000" },
1055 { 1.234321234321234e-32L, "0.000000" },
1056 { 1.234321234321234e-31L, "0.000000" },
1057 { 1.234321234321234e-30L, "0.000000" },
1058 { 1.234321234321234e-29L, "0.000000" },
1059 { 1.234321234321234e-28L, "0.000000" },
1060 { 1.234321234321234e-27L, "0.000000" },
1061 { 1.234321234321234e-26L, "0.000000" },
1062 { 1.234321234321234e-25L, "0.000000" },
1063 { 1.234321234321234e-24L, "0.000000" },
1064 { 1.234321234321234e-23L, "0.000000" },
1065 { 1.234321234321234e-22L, "0.000000" },
1066 { 1.234321234321234e-21L, "0.000000" },
1067 { 1.234321234321234e-20L, "0.000000" },
1068 { 1.234321234321234e-19L, "0.000000" },
1069 { 1.234321234321234e-18L, "0.000000" },
1070 { 1.234321234321234e-17L, "0.000000" },
1071 { 1.234321234321234e-16L, "0.000000" },
1072 { 1.234321234321234e-15L, "0.000000" },
1073 { 1.234321234321234e-14L, "0.000000" },
1074 { 1.234321234321234e-13L, "0.000000" },
1075 { 1.234321234321234e-12L, "0.000000" },
1076 { 1.234321234321234e-11L, "0.000000" },
1077 { 1.234321234321234e-10L, "0.000000" },
1078 { 1.234321234321234e-9L, "0.000000" },
1079 { 1.234321234321234e-8L, "0.000000" },
1080 { 1.234321234321234e-7L, "0.000000" },
1081 { 1.234321234321234e-6L, "0.000001" },
1082 { 1.234321234321234e-5L, "0.000012" },
1083 { 1.234321234321234e-4L, "0.000123" },
1084 { 1.234321234321234e-3L, "0.001234" },
1085 { 1.234321234321234e-2L, "0.012343" },
1086 { 1.234321234321234e-1L, "0.123432" },
1087 { 1.234321234321234L, "1.234321" },
1088 { 1.234321234321234e1L, "12.343212" },
1089 { 1.234321234321234e2L, "123.432123" },
1090 { 1.234321234321234e3L, "1234.321234" },
1091 { 1.234321234321234e4L, "12343.212343" },
1092 { 1.234321234321234e5L, "123432.123432" },
1093 { 1.234321234321234e6L, "1234321.234321" },
1094 { 1.234321234321234e7L, "12343212.343212" },
1095 { 1.234321234321234e8L, "123432123.432123" },
1096 { 1.234321234321234e9L, "1234321234.321234" },
1097 { 1.234321234321234e10L, "12343212343.2123**" },
1098 { 1.234321234321234e11L, "123432123432.123***" },
1099 { 1.234321234321234e12L, "1234321234321.23****" },
1100 { 1.234321234321234e13L, "12343212343212.3*****" },
1101 { 1.234321234321234e14L, "123432123432123.******" },
1102 { 1.234321234321234e15L, "1234321234321234.000000" },
1103 { 1.234321234321234e16L, "123432123432123**.000000" },
1104 { 1.234321234321234e17L, "123432123432123***.000000" },
1105 { 1.234321234321234e18L, "123432123432123****.000000" },
1106 { 1.234321234321234e19L, "123432123432123*****.000000" },
1107 { 1.234321234321234e20L, "123432123432123******.000000" },
1108 { 1.234321234321234e21L, "123432123432123*******.000000" },
1109 { 1.234321234321234e22L, "123432123432123********.000000" },
1110 { 1.234321234321234e23L, "123432123432123*********.000000" },
1111 { 1.234321234321234e24L, "123432123432123**********.000000" },
1112 { 1.234321234321234e25L, "123432123432123***********.000000" },
1113 { 1.234321234321234e26L, "123432123432123************.000000" },
1114 { 1.234321234321234e27L, "123432123432123*************.000000" },
1115 { 1.234321234321234e28L, "123432123432123**************.000000" },
1116 { 1.234321234321234e29L, "123432123432123***************.000000" },
1117 { 1.234321234321234e30L, "123432123432123****************.000000" },
1118 { 1.234321234321234e31L, "123432123432123*****************.000000" },
1119 { 1.234321234321234e32L, "123432123432123******************.000000" },
1120 { 1.234321234321234e33L, "123432123432123*******************.000000" },
1121 { 1.234321234321234e34L, "123432123432123********************.000000" },
1122 { 1.234321234321234e35L, "123432123432123*********************.000000" },
1123 { 1.234321234321234e36L, "123432123432123**********************.000000" }
1126 for (k = 0; k < SIZEOF (data); k++)
1130 my_snprintf (result, sizeof (result), "%Lf", data[k].value);
1131 ASSERT (strmatch (data[k].string, result));
1132 ASSERT (retval == strlen (result));
1136 { /* A negative number. */
1139 my_snprintf (result, sizeof (result), "%Lf %d", -0.03125L, 33, 44, 55);
1140 ASSERT (strcmp (result, "-0.031250 33") == 0);
1141 ASSERT (retval == strlen (result));
1144 { /* Positive zero. */
1147 my_snprintf (result, sizeof (result), "%Lf %d", 0.0L, 33, 44, 55);
1148 ASSERT (strcmp (result, "0.000000 33") == 0);
1149 ASSERT (retval == strlen (result));
1152 { /* Negative zero. */
1155 my_snprintf (result, sizeof (result), "%Lf %d", -zerol, 33, 44, 55);
1156 if (have_minus_zero ())
1157 ASSERT (strcmp (result, "-0.000000 33") == 0);
1158 ASSERT (retval == strlen (result));
1161 { /* Positive infinity. */
1164 my_snprintf (result, sizeof (result), "%Lf %d", 1.0L / 0.0L, 33, 44, 55);
1165 ASSERT (strcmp (result, "inf 33") == 0
1166 || strcmp (result, "infinity 33") == 0);
1167 ASSERT (retval == strlen (result));
1170 { /* Negative infinity. */
1173 my_snprintf (result, sizeof (result), "%Lf %d", -1.0L / 0.0L, 33, 44, 55);
1174 ASSERT (strcmp (result, "-inf 33") == 0
1175 || strcmp (result, "-infinity 33") == 0);
1176 ASSERT (retval == strlen (result));
1182 my_snprintf (result, sizeof (result), "%Lf %d", NaNl (), 33, 44, 55);
1183 ASSERT (strlen (result) >= 3 + 3
1184 && strisnan (result, 0, strlen (result) - 3, 0)
1185 && strcmp (result + strlen (result) - 3, " 33") == 0);
1186 ASSERT (retval == strlen (result));
1188 #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_))
1190 static union { unsigned int word[4]; long double value; } x =
1191 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
1194 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1195 ASSERT (strlen (result) >= 3 + 3
1196 && strisnan (result, 0, strlen (result) - 3, 0)
1197 && strcmp (result + strlen (result) - 3, " 33") == 0);
1198 ASSERT (retval == strlen (result));
1201 /* Signalling NaN. */
1202 static union { unsigned int word[4]; long double value; } x =
1203 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
1206 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1207 ASSERT (strlen (result) >= 3 + 3
1208 && strisnan (result, 0, strlen (result) - 3, 0)
1209 && strcmp (result + strlen (result) - 3, " 33") == 0);
1210 ASSERT (retval == strlen (result));
1212 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
1213 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
1214 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
1215 Application Architecture.
1216 Table 5-2 "Floating-Point Register Encodings"
1217 Figure 5-6 "Memory to Floating-Point Register Data Translation"
1220 static union { unsigned int word[4]; long double value; } x =
1221 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
1224 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1225 ASSERT (strlen (result) >= 3 + 3
1226 && strisnan (result, 0, strlen (result) - 3, 0)
1227 && strcmp (result + strlen (result) - 3, " 33") == 0);
1228 ASSERT (retval == strlen (result));
1230 { /* Pseudo-Infinity. */
1231 static union { unsigned int word[4]; long double value; } x =
1232 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
1235 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1236 ASSERT (strlen (result) >= 3 + 3
1237 && strisnan (result, 0, strlen (result) - 3, 0)
1238 && strcmp (result + strlen (result) - 3, " 33") == 0);
1239 ASSERT (retval == strlen (result));
1241 { /* Pseudo-Zero. */
1242 static union { unsigned int word[4]; long double value; } x =
1243 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
1246 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1247 ASSERT (strlen (result) >= 3 + 3
1248 && strisnan (result, 0, strlen (result) - 3, 0)
1249 && strcmp (result + strlen (result) - 3, " 33") == 0);
1250 ASSERT (retval == strlen (result));
1252 { /* Unnormalized number. */
1253 static union { unsigned int word[4]; long double value; } x =
1254 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
1257 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1258 ASSERT (strlen (result) >= 3 + 3
1259 && strisnan (result, 0, strlen (result) - 3, 0)
1260 && strcmp (result + strlen (result) - 3, " 33") == 0);
1261 ASSERT (retval == strlen (result));
1263 { /* Pseudo-Denormal. */
1264 static union { unsigned int word[4]; long double value; } x =
1265 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
1268 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1269 ASSERT (strlen (result) >= 3 + 3
1270 && strisnan (result, 0, strlen (result) - 3, 0)
1271 && strcmp (result + strlen (result) - 3, " 33") == 0);
1272 ASSERT (retval == strlen (result));
1279 my_snprintf (result, sizeof (result), "%10Lf %d", 1.75L, 33, 44, 55);
1280 ASSERT (result != NULL);
1281 ASSERT (strcmp (result, " 1.750000 33") == 0);
1282 ASSERT (retval == strlen (result));
1288 my_snprintf (result, sizeof (result), "%-10Lf %d", 1.75L, 33, 44, 55);
1289 ASSERT (result != NULL);
1290 ASSERT (strcmp (result, "1.750000 33") == 0);
1291 ASSERT (retval == strlen (result));
1294 { /* FLAG_SHOWSIGN. */
1297 my_snprintf (result, sizeof (result), "%+Lf %d", 1.75L, 33, 44, 55);
1298 ASSERT (result != NULL);
1299 ASSERT (strcmp (result, "+1.750000 33") == 0);
1300 ASSERT (retval == strlen (result));
1306 my_snprintf (result, sizeof (result), "% Lf %d", 1.75L, 33, 44, 55);
1307 ASSERT (result != NULL);
1308 ASSERT (strcmp (result, " 1.750000 33") == 0);
1309 ASSERT (retval == strlen (result));
1315 my_snprintf (result, sizeof (result), "%#Lf %d", 1.75L, 33, 44, 55);
1316 ASSERT (result != NULL);
1317 ASSERT (strcmp (result, "1.750000 33") == 0);
1318 ASSERT (retval == strlen (result));
1324 my_snprintf (result, sizeof (result), "%#.Lf %d", 1.75L, 33, 44, 55);
1325 ASSERT (result != NULL);
1326 ASSERT (strcmp (result, "2. 33") == 0);
1327 ASSERT (retval == strlen (result));
1330 { /* FLAG_ZERO with finite number. */
1333 my_snprintf (result, sizeof (result), "%015Lf %d", 1234.0L, 33, 44, 55);
1334 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1335 ASSERT (retval == strlen (result));
1338 { /* FLAG_ZERO with infinite number. */
1341 my_snprintf (result, sizeof (result), "%015Lf %d", -1.0L / 0.0L, 33, 44, 55);
1342 ASSERT (strcmp (result, " -inf 33") == 0
1343 || strcmp (result, " -infinity 33") == 0);
1344 ASSERT (retval == strlen (result));
1347 { /* FLAG_ZERO with NaN. */
1350 my_snprintf (result, sizeof (result), "%050Lf %d", NaNl (), 33, 44, 55);
1351 ASSERT (strlen (result) == 50 + 3
1352 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1353 && strcmp (result + strlen (result) - 3, " 33") == 0);
1354 ASSERT (retval == strlen (result));
1360 my_snprintf (result, sizeof (result), "%.Lf %d", 1234.0L, 33, 44, 55);
1361 ASSERT (strcmp (result, "1234 33") == 0);
1362 ASSERT (retval == strlen (result));
1365 { /* Precision with no rounding. */
1368 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.951L, 33, 44, 55);
1369 ASSERT (strcmp (result, "999.95 33") == 0);
1370 ASSERT (retval == strlen (result));
1373 { /* Precision with rounding. */
1376 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.996L, 33, 44, 55);
1377 ASSERT (strcmp (result, "1000.00 33") == 0);
1378 ASSERT (retval == strlen (result));
1381 /* Test the support of the %F format directive. */
1383 { /* A positive number. */
1386 my_snprintf (result, sizeof (result), "%F %d", 12.75, 33, 44, 55);
1387 ASSERT (strcmp (result, "12.750000 33") == 0);
1388 ASSERT (retval == strlen (result));
1391 { /* A larger positive number. */
1394 my_snprintf (result, sizeof (result), "%F %d", 1234567.0, 33, 44, 55);
1395 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1396 ASSERT (retval == strlen (result));
1399 { /* A negative number. */
1402 my_snprintf (result, sizeof (result), "%F %d", -0.03125, 33, 44, 55);
1403 ASSERT (strcmp (result, "-0.031250 33") == 0);
1404 ASSERT (retval == strlen (result));
1407 { /* Positive zero. */
1410 my_snprintf (result, sizeof (result), "%F %d", 0.0, 33, 44, 55);
1411 ASSERT (strcmp (result, "0.000000 33") == 0);
1412 ASSERT (retval == strlen (result));
1415 { /* Negative zero. */
1418 my_snprintf (result, sizeof (result), "%F %d", -zerod, 33, 44, 55);
1419 if (have_minus_zero ())
1420 ASSERT (strcmp (result, "-0.000000 33") == 0);
1421 ASSERT (retval == strlen (result));
1424 { /* Positive infinity. */
1427 my_snprintf (result, sizeof (result), "%F %d", 1.0 / 0.0, 33, 44, 55);
1428 ASSERT (strcmp (result, "INF 33") == 0
1429 || strcmp (result, "INFINITY 33") == 0);
1430 ASSERT (retval == strlen (result));
1433 { /* Negative infinity. */
1436 my_snprintf (result, sizeof (result), "%F %d", -1.0 / 0.0, 33, 44, 55);
1437 ASSERT (strcmp (result, "-INF 33") == 0
1438 || strcmp (result, "-INFINITY 33") == 0);
1439 ASSERT (retval == strlen (result));
1445 my_snprintf (result, sizeof (result), "%F %d", NaNd (), 33, 44, 55);
1446 ASSERT (strlen (result) >= 3 + 3
1447 && strisnan (result, 0, strlen (result) - 3, 1)
1448 && strcmp (result + strlen (result) - 3, " 33") == 0);
1449 ASSERT (retval == strlen (result));
1455 my_snprintf (result, sizeof (result), "%015F %d", 1234.0, 33, 44, 55);
1456 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1457 ASSERT (retval == strlen (result));
1460 { /* FLAG_ZERO with infinite number. */
1463 my_snprintf (result, sizeof (result), "%015F %d", -1.0 / 0.0, 33, 44, 55);
1464 ASSERT (strcmp (result, " -INF 33") == 0
1465 || strcmp (result, " -INFINITY 33") == 0);
1466 ASSERT (retval == strlen (result));
1472 my_snprintf (result, sizeof (result), "%.F %d", 1234.0, 33, 44, 55);
1473 ASSERT (strcmp (result, "1234 33") == 0);
1474 ASSERT (retval == strlen (result));
1477 { /* Precision with no rounding. */
1480 my_snprintf (result, sizeof (result), "%.2F %d", 999.951, 33, 44, 55);
1481 ASSERT (strcmp (result, "999.95 33") == 0);
1482 ASSERT (retval == strlen (result));
1485 { /* Precision with rounding. */
1488 my_snprintf (result, sizeof (result), "%.2F %d", 999.996, 33, 44, 55);
1489 ASSERT (strcmp (result, "1000.00 33") == 0);
1490 ASSERT (retval == strlen (result));
1493 { /* A positive number. */
1496 my_snprintf (result, sizeof (result), "%LF %d", 12.75L, 33, 44, 55);
1497 ASSERT (strcmp (result, "12.750000 33") == 0);
1498 ASSERT (retval == strlen (result));
1501 { /* A larger positive number. */
1504 my_snprintf (result, sizeof (result), "%LF %d", 1234567.0L, 33, 44, 55);
1505 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1506 ASSERT (retval == strlen (result));
1509 { /* A negative number. */
1512 my_snprintf (result, sizeof (result), "%LF %d", -0.03125L, 33, 44, 55);
1513 ASSERT (strcmp (result, "-0.031250 33") == 0);
1514 ASSERT (retval == strlen (result));
1517 { /* Positive zero. */
1520 my_snprintf (result, sizeof (result), "%LF %d", 0.0L, 33, 44, 55);
1521 ASSERT (strcmp (result, "0.000000 33") == 0);
1522 ASSERT (retval == strlen (result));
1525 { /* Negative zero. */
1528 my_snprintf (result, sizeof (result), "%LF %d", -zerol, 33, 44, 55);
1529 if (have_minus_zero ())
1530 ASSERT (strcmp (result, "-0.000000 33") == 0);
1531 ASSERT (retval == strlen (result));
1534 { /* Positive infinity. */
1537 my_snprintf (result, sizeof (result), "%LF %d", 1.0L / 0.0L, 33, 44, 55);
1538 ASSERT (strcmp (result, "INF 33") == 0
1539 || strcmp (result, "INFINITY 33") == 0);
1540 ASSERT (retval == strlen (result));
1543 { /* Negative infinity. */
1546 my_snprintf (result, sizeof (result), "%LF %d", -1.0L / 0.0L, 33, 44, 55);
1547 ASSERT (strcmp (result, "-INF 33") == 0
1548 || strcmp (result, "-INFINITY 33") == 0);
1549 ASSERT (retval == strlen (result));
1555 my_snprintf (result, sizeof (result), "%LF %d", NaNl (), 33, 44, 55);
1556 ASSERT (strlen (result) >= 3 + 3
1557 && strisnan (result, 0, strlen (result) - 3, 1)
1558 && strcmp (result + strlen (result) - 3, " 33") == 0);
1559 ASSERT (retval == strlen (result));
1565 my_snprintf (result, sizeof (result), "%015LF %d", 1234.0L, 33, 44, 55);
1566 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1567 ASSERT (retval == strlen (result));
1570 { /* FLAG_ZERO with infinite number. */
1573 my_snprintf (result, sizeof (result), "%015LF %d", -1.0L / 0.0L, 33, 44, 55);
1574 ASSERT (strcmp (result, " -INF 33") == 0
1575 || strcmp (result, " -INFINITY 33") == 0);
1576 ASSERT (retval == strlen (result));
1582 my_snprintf (result, sizeof (result), "%.LF %d", 1234.0L, 33, 44, 55);
1583 ASSERT (strcmp (result, "1234 33") == 0);
1584 ASSERT (retval == strlen (result));
1587 { /* Precision with no rounding. */
1590 my_snprintf (result, sizeof (result), "%.2LF %d", 999.951L, 33, 44, 55);
1591 ASSERT (strcmp (result, "999.95 33") == 0);
1592 ASSERT (retval == strlen (result));
1595 { /* Precision with rounding. */
1598 my_snprintf (result, sizeof (result), "%.2LF %d", 999.996L, 33, 44, 55);
1599 ASSERT (strcmp (result, "1000.00 33") == 0);
1600 ASSERT (retval == strlen (result));
1603 /* Test the support of the %e format directive. */
1605 { /* A positive number. */
1608 my_snprintf (result, sizeof (result), "%e %d", 12.75, 33, 44, 55);
1609 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1610 || strcmp (result, "1.275000e+001 33") == 0);
1611 ASSERT (retval == strlen (result));
1614 { /* A larger positive number. */
1617 my_snprintf (result, sizeof (result), "%e %d", 1234567.0, 33, 44, 55);
1618 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1619 || strcmp (result, "1.234567e+006 33") == 0);
1620 ASSERT (retval == strlen (result));
1623 { /* Small and large positive numbers. */
1624 static struct { double value; const char *string; } data[] =
1626 { 1.234321234321234e-37, "1.234321e-37" },
1627 { 1.234321234321234e-36, "1.234321e-36" },
1628 { 1.234321234321234e-35, "1.234321e-35" },
1629 { 1.234321234321234e-34, "1.234321e-34" },
1630 { 1.234321234321234e-33, "1.234321e-33" },
1631 { 1.234321234321234e-32, "1.234321e-32" },
1632 { 1.234321234321234e-31, "1.234321e-31" },
1633 { 1.234321234321234e-30, "1.234321e-30" },
1634 { 1.234321234321234e-29, "1.234321e-29" },
1635 { 1.234321234321234e-28, "1.234321e-28" },
1636 { 1.234321234321234e-27, "1.234321e-27" },
1637 { 1.234321234321234e-26, "1.234321e-26" },
1638 { 1.234321234321234e-25, "1.234321e-25" },
1639 { 1.234321234321234e-24, "1.234321e-24" },
1640 { 1.234321234321234e-23, "1.234321e-23" },
1641 { 1.234321234321234e-22, "1.234321e-22" },
1642 { 1.234321234321234e-21, "1.234321e-21" },
1643 { 1.234321234321234e-20, "1.234321e-20" },
1644 { 1.234321234321234e-19, "1.234321e-19" },
1645 { 1.234321234321234e-18, "1.234321e-18" },
1646 { 1.234321234321234e-17, "1.234321e-17" },
1647 { 1.234321234321234e-16, "1.234321e-16" },
1648 { 1.234321234321234e-15, "1.234321e-15" },
1649 { 1.234321234321234e-14, "1.234321e-14" },
1650 { 1.234321234321234e-13, "1.234321e-13" },
1651 { 1.234321234321234e-12, "1.234321e-12" },
1652 { 1.234321234321234e-11, "1.234321e-11" },
1653 { 1.234321234321234e-10, "1.234321e-10" },
1654 { 1.234321234321234e-9, "1.234321e-09" },
1655 { 1.234321234321234e-8, "1.234321e-08" },
1656 { 1.234321234321234e-7, "1.234321e-07" },
1657 { 1.234321234321234e-6, "1.234321e-06" },
1658 { 1.234321234321234e-5, "1.234321e-05" },
1659 { 1.234321234321234e-4, "1.234321e-04" },
1660 { 1.234321234321234e-3, "1.234321e-03" },
1661 { 1.234321234321234e-2, "1.234321e-02" },
1662 { 1.234321234321234e-1, "1.234321e-01" },
1663 { 1.234321234321234, "1.234321e+00" },
1664 { 1.234321234321234e1, "1.234321e+01" },
1665 { 1.234321234321234e2, "1.234321e+02" },
1666 { 1.234321234321234e3, "1.234321e+03" },
1667 { 1.234321234321234e4, "1.234321e+04" },
1668 { 1.234321234321234e5, "1.234321e+05" },
1669 { 1.234321234321234e6, "1.234321e+06" },
1670 { 1.234321234321234e7, "1.234321e+07" },
1671 { 1.234321234321234e8, "1.234321e+08" },
1672 { 1.234321234321234e9, "1.234321e+09" },
1673 { 1.234321234321234e10, "1.234321e+10" },
1674 { 1.234321234321234e11, "1.234321e+11" },
1675 { 1.234321234321234e12, "1.234321e+12" },
1676 { 1.234321234321234e13, "1.234321e+13" },
1677 { 1.234321234321234e14, "1.234321e+14" },
1678 { 1.234321234321234e15, "1.234321e+15" },
1679 { 1.234321234321234e16, "1.234321e+16" },
1680 { 1.234321234321234e17, "1.234321e+17" },
1681 { 1.234321234321234e18, "1.234321e+18" },
1682 { 1.234321234321234e19, "1.234321e+19" },
1683 { 1.234321234321234e20, "1.234321e+20" },
1684 { 1.234321234321234e21, "1.234321e+21" },
1685 { 1.234321234321234e22, "1.234321e+22" },
1686 { 1.234321234321234e23, "1.234321e+23" },
1687 { 1.234321234321234e24, "1.234321e+24" },
1688 { 1.234321234321234e25, "1.234321e+25" },
1689 { 1.234321234321234e26, "1.234321e+26" },
1690 { 1.234321234321234e27, "1.234321e+27" },
1691 { 1.234321234321234e28, "1.234321e+28" },
1692 { 1.234321234321234e29, "1.234321e+29" },
1693 { 1.234321234321234e30, "1.234321e+30" },
1694 { 1.234321234321234e31, "1.234321e+31" },
1695 { 1.234321234321234e32, "1.234321e+32" },
1696 { 1.234321234321234e33, "1.234321e+33" },
1697 { 1.234321234321234e34, "1.234321e+34" },
1698 { 1.234321234321234e35, "1.234321e+35" },
1699 { 1.234321234321234e36, "1.234321e+36" }
1702 for (k = 0; k < SIZEOF (data); k++)
1706 my_snprintf (result, sizeof (result), "%e", data[k].value);
1707 const char *expected = data[k].string;
1708 ASSERT (result != NULL);
1709 ASSERT (strcmp (result, expected) == 0
1710 /* Some implementations produce exponents with 3 digits. */
1711 || (strlen (result) == strlen (expected) + 1
1712 && memcmp (result, expected, strlen (expected) - 2) == 0
1713 && result[strlen (expected) - 2] == '0'
1714 && strcmp (result + strlen (expected) - 1,
1715 expected + strlen (expected) - 2)
1717 ASSERT (retval == strlen (result));
1721 { /* A negative number. */
1724 my_snprintf (result, sizeof (result), "%e %d", -0.03125, 33, 44, 55);
1725 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
1726 || strcmp (result, "-3.125000e-002 33") == 0);
1727 ASSERT (retval == strlen (result));
1730 { /* Positive zero. */
1733 my_snprintf (result, sizeof (result), "%e %d", 0.0, 33, 44, 55);
1734 ASSERT (strcmp (result, "0.000000e+00 33") == 0
1735 || strcmp (result, "0.000000e+000 33") == 0);
1736 ASSERT (retval == strlen (result));
1739 { /* Negative zero. */
1742 my_snprintf (result, sizeof (result), "%e %d", -zerod, 33, 44, 55);
1743 if (have_minus_zero ())
1744 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
1745 || strcmp (result, "-0.000000e+000 33") == 0);
1746 ASSERT (retval == strlen (result));
1749 { /* Positive infinity. */
1752 my_snprintf (result, sizeof (result), "%e %d", 1.0 / 0.0, 33, 44, 55);
1753 ASSERT (strcmp (result, "inf 33") == 0
1754 || strcmp (result, "infinity 33") == 0);
1755 ASSERT (retval == strlen (result));
1758 { /* Negative infinity. */
1761 my_snprintf (result, sizeof (result), "%e %d", -1.0 / 0.0, 33, 44, 55);
1762 ASSERT (strcmp (result, "-inf 33") == 0
1763 || strcmp (result, "-infinity 33") == 0);
1764 ASSERT (retval == strlen (result));
1770 my_snprintf (result, sizeof (result), "%e %d", NaNd (), 33, 44, 55);
1771 ASSERT (strlen (result) >= 3 + 3
1772 && strisnan (result, 0, strlen (result) - 3, 0)
1773 && strcmp (result + strlen (result) - 3, " 33") == 0);
1774 ASSERT (retval == strlen (result));
1780 my_snprintf (result, sizeof (result), "%15e %d", 1.75, 33, 44, 55);
1781 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1782 || strcmp (result, " 1.750000e+000 33") == 0);
1783 ASSERT (retval == strlen (result));
1789 my_snprintf (result, sizeof (result), "%-15e %d", 1.75, 33, 44, 55);
1790 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1791 || strcmp (result, "1.750000e+000 33") == 0);
1792 ASSERT (retval == strlen (result));
1795 { /* FLAG_SHOWSIGN. */
1798 my_snprintf (result, sizeof (result), "%+e %d", 1.75, 33, 44, 55);
1799 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
1800 || strcmp (result, "+1.750000e+000 33") == 0);
1801 ASSERT (retval == strlen (result));
1807 my_snprintf (result, sizeof (result), "% e %d", 1.75, 33, 44, 55);
1808 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1809 || strcmp (result, " 1.750000e+000 33") == 0);
1810 ASSERT (retval == strlen (result));
1816 my_snprintf (result, sizeof (result), "%#e %d", 1.75, 33, 44, 55);
1817 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1818 || strcmp (result, "1.750000e+000 33") == 0);
1819 ASSERT (retval == strlen (result));
1825 my_snprintf (result, sizeof (result), "%#.e %d", 1.75, 33, 44, 55);
1826 ASSERT (strcmp (result, "2.e+00 33") == 0
1827 || strcmp (result, "2.e+000 33") == 0);
1828 ASSERT (retval == strlen (result));
1834 my_snprintf (result, sizeof (result), "%#.e %d", 9.75, 33, 44, 55);
1835 ASSERT (strcmp (result, "1.e+01 33") == 0
1836 || strcmp (result, "1.e+001 33") == 0);
1837 ASSERT (retval == strlen (result));
1840 { /* FLAG_ZERO with finite number. */
1843 my_snprintf (result, sizeof (result), "%015e %d", 1234.0, 33, 44, 55);
1844 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
1845 || strcmp (result, "001.234000e+003 33") == 0);
1846 ASSERT (retval == strlen (result));
1849 { /* FLAG_ZERO with infinite number. */
1852 my_snprintf (result, sizeof (result), "%015e %d", -1.0 / 0.0, 33, 44, 55);
1853 ASSERT (strcmp (result, " -inf 33") == 0
1854 || strcmp (result, " -infinity 33") == 0);
1855 ASSERT (retval == strlen (result));
1858 { /* FLAG_ZERO with NaN. */
1861 my_snprintf (result, sizeof (result), "%050e %d", NaNd (), 33, 44, 55);
1862 ASSERT (strlen (result) == 50 + 3
1863 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1864 && strcmp (result + strlen (result) - 3, " 33") == 0);
1865 ASSERT (retval == strlen (result));
1871 my_snprintf (result, sizeof (result), "%.e %d", 1234.0, 33, 44, 55);
1872 ASSERT (strcmp (result, "1e+03 33") == 0
1873 || strcmp (result, "1e+003 33") == 0);
1874 ASSERT (retval == strlen (result));
1877 { /* Precision with no rounding. */
1880 my_snprintf (result, sizeof (result), "%.4e %d", 999.951, 33, 44, 55);
1881 ASSERT (strcmp (result, "9.9995e+02 33") == 0
1882 || strcmp (result, "9.9995e+002 33") == 0);
1883 ASSERT (retval == strlen (result));
1886 { /* Precision with rounding. */
1889 my_snprintf (result, sizeof (result), "%.4e %d", 999.996, 33, 44, 55);
1890 ASSERT (strcmp (result, "1.0000e+03 33") == 0
1891 || strcmp (result, "1.0000e+003 33") == 0);
1892 ASSERT (retval == strlen (result));
1895 { /* A positive number. */
1898 my_snprintf (result, sizeof (result), "%Le %d", 12.75L, 33, 44, 55);
1899 ASSERT (strcmp (result, "1.275000e+01 33") == 0);
1900 ASSERT (retval == strlen (result));
1903 { /* A larger positive number. */
1906 my_snprintf (result, sizeof (result), "%Le %d", 1234567.0L, 33, 44, 55);
1907 ASSERT (strcmp (result, "1.234567e+06 33") == 0);
1908 ASSERT (retval == strlen (result));
1911 { /* Small and large positive numbers. */
1912 static struct { long double value; const char *string; } data[] =
1914 { 1.234321234321234e-37L, "1.234321e-37" },
1915 { 1.234321234321234e-36L, "1.234321e-36" },
1916 { 1.234321234321234e-35L, "1.234321e-35" },
1917 { 1.234321234321234e-34L, "1.234321e-34" },
1918 { 1.234321234321234e-33L, "1.234321e-33" },
1919 { 1.234321234321234e-32L, "1.234321e-32" },
1920 { 1.234321234321234e-31L, "1.234321e-31" },
1921 { 1.234321234321234e-30L, "1.234321e-30" },
1922 { 1.234321234321234e-29L, "1.234321e-29" },
1923 { 1.234321234321234e-28L, "1.234321e-28" },
1924 { 1.234321234321234e-27L, "1.234321e-27" },
1925 { 1.234321234321234e-26L, "1.234321e-26" },
1926 { 1.234321234321234e-25L, "1.234321e-25" },
1927 { 1.234321234321234e-24L, "1.234321e-24" },
1928 { 1.234321234321234e-23L, "1.234321e-23" },
1929 { 1.234321234321234e-22L, "1.234321e-22" },
1930 { 1.234321234321234e-21L, "1.234321e-21" },
1931 { 1.234321234321234e-20L, "1.234321e-20" },
1932 { 1.234321234321234e-19L, "1.234321e-19" },
1933 { 1.234321234321234e-18L, "1.234321e-18" },
1934 { 1.234321234321234e-17L, "1.234321e-17" },
1935 { 1.234321234321234e-16L, "1.234321e-16" },
1936 { 1.234321234321234e-15L, "1.234321e-15" },
1937 { 1.234321234321234e-14L, "1.234321e-14" },
1938 { 1.234321234321234e-13L, "1.234321e-13" },
1939 { 1.234321234321234e-12L, "1.234321e-12" },
1940 { 1.234321234321234e-11L, "1.234321e-11" },
1941 { 1.234321234321234e-10L, "1.234321e-10" },
1942 { 1.234321234321234e-9L, "1.234321e-09" },
1943 { 1.234321234321234e-8L, "1.234321e-08" },
1944 { 1.234321234321234e-7L, "1.234321e-07" },
1945 { 1.234321234321234e-6L, "1.234321e-06" },
1946 { 1.234321234321234e-5L, "1.234321e-05" },
1947 { 1.234321234321234e-4L, "1.234321e-04" },
1948 { 1.234321234321234e-3L, "1.234321e-03" },
1949 { 1.234321234321234e-2L, "1.234321e-02" },
1950 { 1.234321234321234e-1L, "1.234321e-01" },
1951 { 1.234321234321234L, "1.234321e+00" },
1952 { 1.234321234321234e1L, "1.234321e+01" },
1953 { 1.234321234321234e2L, "1.234321e+02" },
1954 { 1.234321234321234e3L, "1.234321e+03" },
1955 { 1.234321234321234e4L, "1.234321e+04" },
1956 { 1.234321234321234e5L, "1.234321e+05" },
1957 { 1.234321234321234e6L, "1.234321e+06" },
1958 { 1.234321234321234e7L, "1.234321e+07" },
1959 { 1.234321234321234e8L, "1.234321e+08" },
1960 { 1.234321234321234e9L, "1.234321e+09" },
1961 { 1.234321234321234e10L, "1.234321e+10" },
1962 { 1.234321234321234e11L, "1.234321e+11" },
1963 { 1.234321234321234e12L, "1.234321e+12" },
1964 { 1.234321234321234e13L, "1.234321e+13" },
1965 { 1.234321234321234e14L, "1.234321e+14" },
1966 { 1.234321234321234e15L, "1.234321e+15" },
1967 { 1.234321234321234e16L, "1.234321e+16" },
1968 { 1.234321234321234e17L, "1.234321e+17" },
1969 { 1.234321234321234e18L, "1.234321e+18" },
1970 { 1.234321234321234e19L, "1.234321e+19" },
1971 { 1.234321234321234e20L, "1.234321e+20" },
1972 { 1.234321234321234e21L, "1.234321e+21" },
1973 { 1.234321234321234e22L, "1.234321e+22" },
1974 { 1.234321234321234e23L, "1.234321e+23" },
1975 { 1.234321234321234e24L, "1.234321e+24" },
1976 { 1.234321234321234e25L, "1.234321e+25" },
1977 { 1.234321234321234e26L, "1.234321e+26" },
1978 { 1.234321234321234e27L, "1.234321e+27" },
1979 { 1.234321234321234e28L, "1.234321e+28" },
1980 { 1.234321234321234e29L, "1.234321e+29" },
1981 { 1.234321234321234e30L, "1.234321e+30" },
1982 { 1.234321234321234e31L, "1.234321e+31" },
1983 { 1.234321234321234e32L, "1.234321e+32" },
1984 { 1.234321234321234e33L, "1.234321e+33" },
1985 { 1.234321234321234e34L, "1.234321e+34" },
1986 { 1.234321234321234e35L, "1.234321e+35" },
1987 { 1.234321234321234e36L, "1.234321e+36" }
1990 for (k = 0; k < SIZEOF (data); k++)
1994 my_snprintf (result, sizeof (result), "%Le", data[k].value);
1995 ASSERT (strcmp (result, data[k].string) == 0);
1996 ASSERT (retval == strlen (result));
2000 { /* A negative number. */
2003 my_snprintf (result, sizeof (result), "%Le %d", -0.03125L, 33, 44, 55);
2004 ASSERT (strcmp (result, "-3.125000e-02 33") == 0);
2005 ASSERT (retval == strlen (result));
2008 { /* Positive zero. */
2011 my_snprintf (result, sizeof (result), "%Le %d", 0.0L, 33, 44, 55);
2012 ASSERT (strcmp (result, "0.000000e+00 33") == 0);
2013 ASSERT (retval == strlen (result));
2016 { /* Negative zero. */
2019 my_snprintf (result, sizeof (result), "%Le %d", -zerol, 33, 44, 55);
2020 if (have_minus_zero ())
2021 ASSERT (strcmp (result, "-0.000000e+00 33") == 0);
2022 ASSERT (retval == strlen (result));
2025 { /* Positive infinity. */
2028 my_snprintf (result, sizeof (result), "%Le %d", 1.0L / 0.0L, 33, 44, 55);
2029 ASSERT (strcmp (result, "inf 33") == 0
2030 || strcmp (result, "infinity 33") == 0);
2031 ASSERT (retval == strlen (result));
2034 { /* Negative infinity. */
2037 my_snprintf (result, sizeof (result), "%Le %d", -1.0L / 0.0L, 33, 44, 55);
2038 ASSERT (strcmp (result, "-inf 33") == 0
2039 || strcmp (result, "-infinity 33") == 0);
2040 ASSERT (retval == strlen (result));
2046 my_snprintf (result, sizeof (result), "%Le %d", NaNl (), 33, 44, 55);
2047 ASSERT (strlen (result) >= 3 + 3
2048 && strisnan (result, 0, strlen (result) - 3, 0)
2049 && strcmp (result + strlen (result) - 3, " 33") == 0);
2050 ASSERT (retval == strlen (result));
2052 #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_))
2054 static union { unsigned int word[4]; long double value; } x =
2055 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2058 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2059 ASSERT (strlen (result) >= 3 + 3
2060 && strisnan (result, 0, strlen (result) - 3, 0)
2061 && strcmp (result + strlen (result) - 3, " 33") == 0);
2062 ASSERT (retval == strlen (result));
2065 /* Signalling NaN. */
2066 static union { unsigned int word[4]; long double value; } x =
2067 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2070 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2071 ASSERT (strlen (result) >= 3 + 3
2072 && strisnan (result, 0, strlen (result) - 3, 0)
2073 && strcmp (result + strlen (result) - 3, " 33") == 0);
2074 ASSERT (retval == strlen (result));
2076 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2077 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2078 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2079 Application Architecture.
2080 Table 5-2 "Floating-Point Register Encodings"
2081 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2084 static union { unsigned int word[4]; long double value; } x =
2085 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2088 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2089 ASSERT (strlen (result) >= 3 + 3
2090 && strisnan (result, 0, strlen (result) - 3, 0)
2091 && strcmp (result + strlen (result) - 3, " 33") == 0);
2092 ASSERT (retval == strlen (result));
2094 { /* Pseudo-Infinity. */
2095 static union { unsigned int word[4]; long double value; } x =
2096 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2099 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2100 ASSERT (strlen (result) >= 3 + 3
2101 && strisnan (result, 0, strlen (result) - 3, 0)
2102 && strcmp (result + strlen (result) - 3, " 33") == 0);
2103 ASSERT (retval == strlen (result));
2105 { /* Pseudo-Zero. */
2106 static union { unsigned int word[4]; long double value; } x =
2107 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2110 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2111 ASSERT (strlen (result) >= 3 + 3
2112 && strisnan (result, 0, strlen (result) - 3, 0)
2113 && strcmp (result + strlen (result) - 3, " 33") == 0);
2114 ASSERT (retval == strlen (result));
2116 { /* Unnormalized number. */
2117 static union { unsigned int word[4]; long double value; } x =
2118 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2121 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2122 ASSERT (strlen (result) >= 3 + 3
2123 && strisnan (result, 0, strlen (result) - 3, 0)
2124 && strcmp (result + strlen (result) - 3, " 33") == 0);
2125 ASSERT (retval == strlen (result));
2127 { /* Pseudo-Denormal. */
2128 static union { unsigned int word[4]; long double value; } x =
2129 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2132 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2133 ASSERT (strlen (result) >= 3 + 3
2134 && strisnan (result, 0, strlen (result) - 3, 0)
2135 && strcmp (result + strlen (result) - 3, " 33") == 0);
2136 ASSERT (retval == strlen (result));
2143 my_snprintf (result, sizeof (result), "%15Le %d", 1.75L, 33, 44, 55);
2144 ASSERT (strcmp (result, " 1.750000e+00 33") == 0);
2145 ASSERT (retval == strlen (result));
2151 my_snprintf (result, sizeof (result), "%-15Le %d", 1.75L, 33, 44, 55);
2152 ASSERT (strcmp (result, "1.750000e+00 33") == 0);
2153 ASSERT (retval == strlen (result));
2156 { /* FLAG_SHOWSIGN. */
2159 my_snprintf (result, sizeof (result), "%+Le %d", 1.75L, 33, 44, 55);
2160 ASSERT (strcmp (result, "+1.750000e+00 33") == 0);
2161 ASSERT (retval == strlen (result));
2167 my_snprintf (result, sizeof (result), "% Le %d", 1.75L, 33, 44, 55);
2168 ASSERT (strcmp (result, " 1.750000e+00 33") == 0);
2169 ASSERT (retval == strlen (result));
2175 my_snprintf (result, sizeof (result), "%#Le %d", 1.75L, 33, 44, 55);
2176 ASSERT (strcmp (result, "1.750000e+00 33") == 0);
2177 ASSERT (retval == strlen (result));
2183 my_snprintf (result, sizeof (result), "%#.Le %d", 1.75L, 33, 44, 55);
2184 ASSERT (strcmp (result, "2.e+00 33") == 0);
2185 ASSERT (retval == strlen (result));
2191 my_snprintf (result, sizeof (result), "%#.Le %d", 9.75L, 33, 44, 55);
2192 ASSERT (strcmp (result, "1.e+01 33") == 0);
2193 ASSERT (retval == strlen (result));
2196 { /* FLAG_ZERO with finite number. */
2199 my_snprintf (result, sizeof (result), "%015Le %d", 1234.0L, 33, 44, 55);
2200 ASSERT (strcmp (result, "0001.234000e+03 33") == 0);
2201 ASSERT (retval == strlen (result));
2204 { /* FLAG_ZERO with infinite number. */
2207 my_snprintf (result, sizeof (result), "%015Le %d", -1.0L / 0.0L, 33, 44, 55);
2208 ASSERT (strcmp (result, " -inf 33") == 0
2209 || strcmp (result, " -infinity 33") == 0);
2210 ASSERT (retval == strlen (result));
2213 { /* FLAG_ZERO with NaN. */
2216 my_snprintf (result, sizeof (result), "%050Le %d", NaNl (), 33, 44, 55);
2217 ASSERT (strlen (result) == 50 + 3
2218 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2219 && strcmp (result + strlen (result) - 3, " 33") == 0);
2220 ASSERT (retval == strlen (result));
2226 my_snprintf (result, sizeof (result), "%.Le %d", 1234.0L, 33, 44, 55);
2227 ASSERT (strcmp (result, "1e+03 33") == 0);
2228 ASSERT (retval == strlen (result));
2231 { /* Precision with no rounding. */
2234 my_snprintf (result, sizeof (result), "%.4Le %d", 999.951L, 33, 44, 55);
2235 ASSERT (strcmp (result, "9.9995e+02 33") == 0);
2236 ASSERT (retval == strlen (result));
2239 { /* Precision with rounding. */
2242 my_snprintf (result, sizeof (result), "%.4Le %d", 999.996L, 33, 44, 55);
2243 ASSERT (strcmp (result, "1.0000e+03 33") == 0);
2244 ASSERT (retval == strlen (result));
2247 /* Test the support of the %g format directive. */
2249 { /* A positive number. */
2252 my_snprintf (result, sizeof (result), "%g %d", 12.75, 33, 44, 55);
2253 ASSERT (strcmp (result, "12.75 33") == 0);
2254 ASSERT (retval == strlen (result));
2257 { /* A larger positive number. */
2260 my_snprintf (result, sizeof (result), "%g %d", 1234567.0, 33, 44, 55);
2261 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2262 || strcmp (result, "1.23457e+006 33") == 0);
2263 ASSERT (retval == strlen (result));
2266 { /* Small and large positive numbers. */
2267 static struct { double value; const char *string; } data[] =
2269 { 1.234321234321234e-37, "1.23432e-37" },
2270 { 1.234321234321234e-36, "1.23432e-36" },
2271 { 1.234321234321234e-35, "1.23432e-35" },
2272 { 1.234321234321234e-34, "1.23432e-34" },
2273 { 1.234321234321234e-33, "1.23432e-33" },
2274 { 1.234321234321234e-32, "1.23432e-32" },
2275 { 1.234321234321234e-31, "1.23432e-31" },
2276 { 1.234321234321234e-30, "1.23432e-30" },
2277 { 1.234321234321234e-29, "1.23432e-29" },
2278 { 1.234321234321234e-28, "1.23432e-28" },
2279 { 1.234321234321234e-27, "1.23432e-27" },
2280 { 1.234321234321234e-26, "1.23432e-26" },
2281 { 1.234321234321234e-25, "1.23432e-25" },
2282 { 1.234321234321234e-24, "1.23432e-24" },
2283 { 1.234321234321234e-23, "1.23432e-23" },
2284 { 1.234321234321234e-22, "1.23432e-22" },
2285 { 1.234321234321234e-21, "1.23432e-21" },
2286 { 1.234321234321234e-20, "1.23432e-20" },
2287 { 1.234321234321234e-19, "1.23432e-19" },
2288 { 1.234321234321234e-18, "1.23432e-18" },
2289 { 1.234321234321234e-17, "1.23432e-17" },
2290 { 1.234321234321234e-16, "1.23432e-16" },
2291 { 1.234321234321234e-15, "1.23432e-15" },
2292 { 1.234321234321234e-14, "1.23432e-14" },
2293 { 1.234321234321234e-13, "1.23432e-13" },
2294 { 1.234321234321234e-12, "1.23432e-12" },
2295 { 1.234321234321234e-11, "1.23432e-11" },
2296 { 1.234321234321234e-10, "1.23432e-10" },
2297 { 1.234321234321234e-9, "1.23432e-09" },
2298 { 1.234321234321234e-8, "1.23432e-08" },
2299 { 1.234321234321234e-7, "1.23432e-07" },
2300 { 1.234321234321234e-6, "1.23432e-06" },
2301 { 1.234321234321234e-5, "1.23432e-05" },
2302 { 1.234321234321234e-4, "0.000123432" },
2303 { 1.234321234321234e-3, "0.00123432" },
2304 { 1.234321234321234e-2, "0.0123432" },
2305 { 1.234321234321234e-1, "0.123432" },
2306 { 1.234321234321234, "1.23432" },
2307 { 1.234321234321234e1, "12.3432" },
2308 { 1.234321234321234e2, "123.432" },
2309 { 1.234321234321234e3, "1234.32" },
2310 { 1.234321234321234e4, "12343.2" },
2311 { 1.234321234321234e5, "123432" },
2312 { 1.234321234321234e6, "1.23432e+06" },
2313 { 1.234321234321234e7, "1.23432e+07" },
2314 { 1.234321234321234e8, "1.23432e+08" },
2315 { 1.234321234321234e9, "1.23432e+09" },
2316 { 1.234321234321234e10, "1.23432e+10" },
2317 { 1.234321234321234e11, "1.23432e+11" },
2318 { 1.234321234321234e12, "1.23432e+12" },
2319 { 1.234321234321234e13, "1.23432e+13" },
2320 { 1.234321234321234e14, "1.23432e+14" },
2321 { 1.234321234321234e15, "1.23432e+15" },
2322 { 1.234321234321234e16, "1.23432e+16" },
2323 { 1.234321234321234e17, "1.23432e+17" },
2324 { 1.234321234321234e18, "1.23432e+18" },
2325 { 1.234321234321234e19, "1.23432e+19" },
2326 { 1.234321234321234e20, "1.23432e+20" },
2327 { 1.234321234321234e21, "1.23432e+21" },
2328 { 1.234321234321234e22, "1.23432e+22" },
2329 { 1.234321234321234e23, "1.23432e+23" },
2330 { 1.234321234321234e24, "1.23432e+24" },
2331 { 1.234321234321234e25, "1.23432e+25" },
2332 { 1.234321234321234e26, "1.23432e+26" },
2333 { 1.234321234321234e27, "1.23432e+27" },
2334 { 1.234321234321234e28, "1.23432e+28" },
2335 { 1.234321234321234e29, "1.23432e+29" },
2336 { 1.234321234321234e30, "1.23432e+30" },
2337 { 1.234321234321234e31, "1.23432e+31" },
2338 { 1.234321234321234e32, "1.23432e+32" },
2339 { 1.234321234321234e33, "1.23432e+33" },
2340 { 1.234321234321234e34, "1.23432e+34" },
2341 { 1.234321234321234e35, "1.23432e+35" },
2342 { 1.234321234321234e36, "1.23432e+36" }
2345 for (k = 0; k < SIZEOF (data); k++)
2349 my_snprintf (result, sizeof (result), "%g", data[k].value);
2350 const char *expected = data[k].string;
2351 ASSERT (strcmp (result, expected) == 0
2352 /* Some implementations produce exponents with 3 digits. */
2353 || (expected[strlen (expected) - 4] == 'e'
2354 && strlen (result) == strlen (expected) + 1
2355 && memcmp (result, expected, strlen (expected) - 2) == 0
2356 && result[strlen (expected) - 2] == '0'
2357 && strcmp (result + strlen (expected) - 1,
2358 expected + strlen (expected) - 2)
2360 ASSERT (retval == strlen (result));
2364 { /* A negative number. */
2367 my_snprintf (result, sizeof (result), "%g %d", -0.03125, 33, 44, 55);
2368 ASSERT (strcmp (result, "-0.03125 33") == 0);
2369 ASSERT (retval == strlen (result));
2372 { /* Positive zero. */
2375 my_snprintf (result, sizeof (result), "%g %d", 0.0, 33, 44, 55);
2376 ASSERT (strcmp (result, "0 33") == 0);
2377 ASSERT (retval == strlen (result));
2380 { /* Negative zero. */
2383 my_snprintf (result, sizeof (result), "%g %d", -zerod, 33, 44, 55);
2384 if (have_minus_zero ())
2385 ASSERT (strcmp (result, "-0 33") == 0);
2386 ASSERT (retval == strlen (result));
2389 { /* Positive infinity. */
2392 my_snprintf (result, sizeof (result), "%g %d", 1.0 / 0.0, 33, 44, 55);
2393 ASSERT (strcmp (result, "inf 33") == 0
2394 || strcmp (result, "infinity 33") == 0);
2395 ASSERT (retval == strlen (result));
2398 { /* Negative infinity. */
2401 my_snprintf (result, sizeof (result), "%g %d", -1.0 / 0.0, 33, 44, 55);
2402 ASSERT (strcmp (result, "-inf 33") == 0
2403 || strcmp (result, "-infinity 33") == 0);
2404 ASSERT (retval == strlen (result));
2410 my_snprintf (result, sizeof (result), "%g %d", NaNd (), 33, 44, 55);
2411 ASSERT (strlen (result) >= 3 + 3
2412 && strisnan (result, 0, strlen (result) - 3, 0)
2413 && strcmp (result + strlen (result) - 3, " 33") == 0);
2414 ASSERT (retval == strlen (result));
2420 my_snprintf (result, sizeof (result), "%10g %d", 1.75, 33, 44, 55);
2421 ASSERT (strcmp (result, " 1.75 33") == 0);
2422 ASSERT (retval == strlen (result));
2428 my_snprintf (result, sizeof (result), "%-10g %d", 1.75, 33, 44, 55);
2429 ASSERT (strcmp (result, "1.75 33") == 0);
2430 ASSERT (retval == strlen (result));
2433 { /* FLAG_SHOWSIGN. */
2436 my_snprintf (result, sizeof (result), "%+g %d", 1.75, 33, 44, 55);
2437 ASSERT (strcmp (result, "+1.75 33") == 0);
2438 ASSERT (retval == strlen (result));
2444 my_snprintf (result, sizeof (result), "% g %d", 1.75, 33, 44, 55);
2445 ASSERT (strcmp (result, " 1.75 33") == 0);
2446 ASSERT (retval == strlen (result));
2452 my_snprintf (result, sizeof (result), "%#g %d", 1.75, 33, 44, 55);
2453 ASSERT (strcmp (result, "1.75000 33") == 0);
2454 ASSERT (retval == strlen (result));
2460 my_snprintf (result, sizeof (result), "%#.g %d", 1.75, 33, 44, 55);
2461 ASSERT (strcmp (result, "2. 33") == 0);
2462 ASSERT (retval == strlen (result));
2468 my_snprintf (result, sizeof (result), "%#.g %d", 9.75, 33, 44, 55);
2469 ASSERT (strcmp (result, "1.e+01 33") == 0
2470 || strcmp (result, "1.e+001 33") == 0);
2471 ASSERT (retval == strlen (result));
2474 { /* FLAG_ZERO with finite number. */
2477 my_snprintf (result, sizeof (result), "%010g %d", 1234.0, 33, 44, 55);
2478 ASSERT (strcmp (result, "0000001234 33") == 0);
2479 ASSERT (retval == strlen (result));
2482 { /* FLAG_ZERO with infinite number. */
2485 my_snprintf (result, sizeof (result), "%015g %d", -1.0 / 0.0, 33, 44, 55);
2486 ASSERT (strcmp (result, " -inf 33") == 0
2487 || strcmp (result, " -infinity 33") == 0);
2488 ASSERT (retval == strlen (result));
2491 { /* FLAG_ZERO with NaN. */
2494 my_snprintf (result, sizeof (result), "%050g %d", NaNd (), 33, 44, 55);
2495 ASSERT (strlen (result) == 50 + 3
2496 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2497 && strcmp (result + strlen (result) - 3, " 33") == 0);
2498 ASSERT (retval == strlen (result));
2504 my_snprintf (result, sizeof (result), "%.g %d", 1234.0, 33, 44, 55);
2505 ASSERT (strcmp (result, "1e+03 33") == 0
2506 || strcmp (result, "1e+003 33") == 0);
2507 ASSERT (retval == strlen (result));
2510 { /* Precision with no rounding. */
2513 my_snprintf (result, sizeof (result), "%.5g %d", 999.951, 33, 44, 55);
2514 ASSERT (strcmp (result, "999.95 33") == 0);
2515 ASSERT (retval == strlen (result));
2518 { /* Precision with rounding. */
2521 my_snprintf (result, sizeof (result), "%.5g %d", 999.996, 33, 44, 55);
2522 ASSERT (strcmp (result, "1000 33") == 0);
2523 ASSERT (retval == strlen (result));
2526 { /* A positive number. */
2529 my_snprintf (result, sizeof (result), "%Lg %d", 12.75L, 33, 44, 55);
2530 ASSERT (strcmp (result, "12.75 33") == 0);
2531 ASSERT (retval == strlen (result));
2534 { /* A larger positive number. */
2537 my_snprintf (result, sizeof (result), "%Lg %d", 1234567.0L, 33, 44, 55);
2538 ASSERT (strcmp (result, "1.23457e+06 33") == 0);
2539 ASSERT (retval == strlen (result));
2542 { /* Small and large positive numbers. */
2543 static struct { long double value; const char *string; } data[] =
2545 { 1.234321234321234e-37L, "1.23432e-37" },
2546 { 1.234321234321234e-36L, "1.23432e-36" },
2547 { 1.234321234321234e-35L, "1.23432e-35" },
2548 { 1.234321234321234e-34L, "1.23432e-34" },
2549 { 1.234321234321234e-33L, "1.23432e-33" },
2550 { 1.234321234321234e-32L, "1.23432e-32" },
2551 { 1.234321234321234e-31L, "1.23432e-31" },
2552 { 1.234321234321234e-30L, "1.23432e-30" },
2553 { 1.234321234321234e-29L, "1.23432e-29" },
2554 { 1.234321234321234e-28L, "1.23432e-28" },
2555 { 1.234321234321234e-27L, "1.23432e-27" },
2556 { 1.234321234321234e-26L, "1.23432e-26" },
2557 { 1.234321234321234e-25L, "1.23432e-25" },
2558 { 1.234321234321234e-24L, "1.23432e-24" },
2559 { 1.234321234321234e-23L, "1.23432e-23" },
2560 { 1.234321234321234e-22L, "1.23432e-22" },
2561 { 1.234321234321234e-21L, "1.23432e-21" },
2562 { 1.234321234321234e-20L, "1.23432e-20" },
2563 { 1.234321234321234e-19L, "1.23432e-19" },
2564 { 1.234321234321234e-18L, "1.23432e-18" },
2565 { 1.234321234321234e-17L, "1.23432e-17" },
2566 { 1.234321234321234e-16L, "1.23432e-16" },
2567 { 1.234321234321234e-15L, "1.23432e-15" },
2568 { 1.234321234321234e-14L, "1.23432e-14" },
2569 { 1.234321234321234e-13L, "1.23432e-13" },
2570 { 1.234321234321234e-12L, "1.23432e-12" },
2571 { 1.234321234321234e-11L, "1.23432e-11" },
2572 { 1.234321234321234e-10L, "1.23432e-10" },
2573 { 1.234321234321234e-9L, "1.23432e-09" },
2574 { 1.234321234321234e-8L, "1.23432e-08" },
2575 { 1.234321234321234e-7L, "1.23432e-07" },
2576 { 1.234321234321234e-6L, "1.23432e-06" },
2577 { 1.234321234321234e-5L, "1.23432e-05" },
2578 { 1.234321234321234e-4L, "0.000123432" },
2579 { 1.234321234321234e-3L, "0.00123432" },
2580 { 1.234321234321234e-2L, "0.0123432" },
2581 { 1.234321234321234e-1L, "0.123432" },
2582 { 1.234321234321234L, "1.23432" },
2583 { 1.234321234321234e1L, "12.3432" },
2584 { 1.234321234321234e2L, "123.432" },
2585 { 1.234321234321234e3L, "1234.32" },
2586 { 1.234321234321234e4L, "12343.2" },
2587 { 1.234321234321234e5L, "123432" },
2588 { 1.234321234321234e6L, "1.23432e+06" },
2589 { 1.234321234321234e7L, "1.23432e+07" },
2590 { 1.234321234321234e8L, "1.23432e+08" },
2591 { 1.234321234321234e9L, "1.23432e+09" },
2592 { 1.234321234321234e10L, "1.23432e+10" },
2593 { 1.234321234321234e11L, "1.23432e+11" },
2594 { 1.234321234321234e12L, "1.23432e+12" },
2595 { 1.234321234321234e13L, "1.23432e+13" },
2596 { 1.234321234321234e14L, "1.23432e+14" },
2597 { 1.234321234321234e15L, "1.23432e+15" },
2598 { 1.234321234321234e16L, "1.23432e+16" },
2599 { 1.234321234321234e17L, "1.23432e+17" },
2600 { 1.234321234321234e18L, "1.23432e+18" },
2601 { 1.234321234321234e19L, "1.23432e+19" },
2602 { 1.234321234321234e20L, "1.23432e+20" },
2603 { 1.234321234321234e21L, "1.23432e+21" },
2604 { 1.234321234321234e22L, "1.23432e+22" },
2605 { 1.234321234321234e23L, "1.23432e+23" },
2606 { 1.234321234321234e24L, "1.23432e+24" },
2607 { 1.234321234321234e25L, "1.23432e+25" },
2608 { 1.234321234321234e26L, "1.23432e+26" },
2609 { 1.234321234321234e27L, "1.23432e+27" },
2610 { 1.234321234321234e28L, "1.23432e+28" },
2611 { 1.234321234321234e29L, "1.23432e+29" },
2612 { 1.234321234321234e30L, "1.23432e+30" },
2613 { 1.234321234321234e31L, "1.23432e+31" },
2614 { 1.234321234321234e32L, "1.23432e+32" },
2615 { 1.234321234321234e33L, "1.23432e+33" },
2616 { 1.234321234321234e34L, "1.23432e+34" },
2617 { 1.234321234321234e35L, "1.23432e+35" },
2618 { 1.234321234321234e36L, "1.23432e+36" }
2621 for (k = 0; k < SIZEOF (data); k++)
2625 my_snprintf (result, sizeof (result), "%Lg", data[k].value);
2626 ASSERT (strcmp (result, data[k].string) == 0);
2627 ASSERT (retval == strlen (result));
2631 { /* A negative number. */
2634 my_snprintf (result, sizeof (result), "%Lg %d", -0.03125L, 33, 44, 55);
2635 ASSERT (strcmp (result, "-0.03125 33") == 0);
2636 ASSERT (retval == strlen (result));
2639 { /* Positive zero. */
2642 my_snprintf (result, sizeof (result), "%Lg %d", 0.0L, 33, 44, 55);
2643 ASSERT (strcmp (result, "0 33") == 0);
2644 ASSERT (retval == strlen (result));
2647 { /* Negative zero. */
2650 my_snprintf (result, sizeof (result), "%Lg %d", -zerol, 33, 44, 55);
2651 if (have_minus_zero ())
2652 ASSERT (strcmp (result, "-0 33") == 0);
2653 ASSERT (retval == strlen (result));
2656 { /* Positive infinity. */
2659 my_snprintf (result, sizeof (result), "%Lg %d", 1.0L / 0.0L, 33, 44, 55);
2660 ASSERT (strcmp (result, "inf 33") == 0
2661 || strcmp (result, "infinity 33") == 0);
2662 ASSERT (retval == strlen (result));
2665 { /* Negative infinity. */
2668 my_snprintf (result, sizeof (result), "%Lg %d", -1.0L / 0.0L, 33, 44, 55);
2669 ASSERT (strcmp (result, "-inf 33") == 0
2670 || strcmp (result, "-infinity 33") == 0);
2671 ASSERT (retval == strlen (result));
2677 my_snprintf (result, sizeof (result), "%Lg %d", NaNl (), 33, 44, 55);
2678 ASSERT (strlen (result) >= 3 + 3
2679 && strisnan (result, 0, strlen (result) - 3, 0)
2680 && strcmp (result + strlen (result) - 3, " 33") == 0);
2681 ASSERT (retval == strlen (result));
2683 #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_))
2685 static union { unsigned int word[4]; long double value; } x =
2686 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2689 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2690 ASSERT (strlen (result) >= 3 + 3
2691 && strisnan (result, 0, strlen (result) - 3, 0)
2692 && strcmp (result + strlen (result) - 3, " 33") == 0);
2693 ASSERT (retval == strlen (result));
2696 /* Signalling NaN. */
2697 static union { unsigned int word[4]; long double value; } x =
2698 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2701 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2702 ASSERT (strlen (result) >= 3 + 3
2703 && strisnan (result, 0, strlen (result) - 3, 0)
2704 && strcmp (result + strlen (result) - 3, " 33") == 0);
2705 ASSERT (retval == strlen (result));
2707 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2708 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2709 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2710 Application Architecture.
2711 Table 5-2 "Floating-Point Register Encodings"
2712 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2715 static union { unsigned int word[4]; long double value; } x =
2716 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2719 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2720 ASSERT (strlen (result) >= 3 + 3
2721 && strisnan (result, 0, strlen (result) - 3, 0)
2722 && strcmp (result + strlen (result) - 3, " 33") == 0);
2723 ASSERT (retval == strlen (result));
2725 { /* Pseudo-Infinity. */
2726 static union { unsigned int word[4]; long double value; } x =
2727 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2730 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2731 ASSERT (strlen (result) >= 3 + 3
2732 && strisnan (result, 0, strlen (result) - 3, 0)
2733 && strcmp (result + strlen (result) - 3, " 33") == 0);
2734 ASSERT (retval == strlen (result));
2736 { /* Pseudo-Zero. */
2737 static union { unsigned int word[4]; long double value; } x =
2738 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2741 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2742 ASSERT (strlen (result) >= 3 + 3
2743 && strisnan (result, 0, strlen (result) - 3, 0)
2744 && strcmp (result + strlen (result) - 3, " 33") == 0);
2745 ASSERT (retval == strlen (result));
2747 { /* Unnormalized number. */
2748 static union { unsigned int word[4]; long double value; } x =
2749 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2752 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2753 ASSERT (strlen (result) >= 3 + 3
2754 && strisnan (result, 0, strlen (result) - 3, 0)
2755 && strcmp (result + strlen (result) - 3, " 33") == 0);
2756 ASSERT (retval == strlen (result));
2758 { /* Pseudo-Denormal. */
2759 static union { unsigned int word[4]; long double value; } x =
2760 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2763 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2764 ASSERT (strlen (result) >= 3 + 3
2765 && strisnan (result, 0, strlen (result) - 3, 0)
2766 && strcmp (result + strlen (result) - 3, " 33") == 0);
2767 ASSERT (retval == strlen (result));
2774 my_snprintf (result, sizeof (result), "%10Lg %d", 1.75L, 33, 44, 55);
2775 ASSERT (strcmp (result, " 1.75 33") == 0);
2776 ASSERT (retval == strlen (result));
2782 my_snprintf (result, sizeof (result), "%-10Lg %d", 1.75L, 33, 44, 55);
2783 ASSERT (strcmp (result, "1.75 33") == 0);
2784 ASSERT (retval == strlen (result));
2787 { /* FLAG_SHOWSIGN. */
2790 my_snprintf (result, sizeof (result), "%+Lg %d", 1.75L, 33, 44, 55);
2791 ASSERT (strcmp (result, "+1.75 33") == 0);
2792 ASSERT (retval == strlen (result));
2798 my_snprintf (result, sizeof (result), "% Lg %d", 1.75L, 33, 44, 55);
2799 ASSERT (strcmp (result, " 1.75 33") == 0);
2800 ASSERT (retval == strlen (result));
2806 my_snprintf (result, sizeof (result), "%#Lg %d", 1.75L, 33, 44, 55);
2807 ASSERT (strcmp (result, "1.75000 33") == 0);
2808 ASSERT (retval == strlen (result));
2814 my_snprintf (result, sizeof (result), "%#.Lg %d", 1.75L, 33, 44, 55);
2815 ASSERT (strcmp (result, "2. 33") == 0);
2816 ASSERT (retval == strlen (result));
2822 my_snprintf (result, sizeof (result), "%#.Lg %d", 9.75L, 33, 44, 55);
2823 ASSERT (strcmp (result, "1.e+01 33") == 0);
2824 ASSERT (retval == strlen (result));
2827 { /* FLAG_ZERO with finite number. */
2830 my_snprintf (result, sizeof (result), "%010Lg %d", 1234.0L, 33, 44, 55);
2831 ASSERT (strcmp (result, "0000001234 33") == 0);
2832 ASSERT (retval == strlen (result));
2835 { /* FLAG_ZERO with infinite number. */
2838 my_snprintf (result, sizeof (result), "%015Lg %d", -1.0L / 0.0L, 33, 44, 55);
2839 ASSERT (strcmp (result, " -inf 33") == 0
2840 || strcmp (result, " -infinity 33") == 0);
2841 ASSERT (retval == strlen (result));
2844 { /* FLAG_ZERO with NaN. */
2847 my_snprintf (result, sizeof (result), "%050Lg %d", NaNl (), 33, 44, 55);
2848 ASSERT (strlen (result) == 50 + 3
2849 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2850 && strcmp (result + strlen (result) - 3, " 33") == 0);
2851 ASSERT (retval == strlen (result));
2857 my_snprintf (result, sizeof (result), "%.Lg %d", 1234.0L, 33, 44, 55);
2858 ASSERT (strcmp (result, "1e+03 33") == 0);
2859 ASSERT (retval == strlen (result));
2862 { /* Precision with no rounding. */
2865 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.951L, 33, 44, 55);
2866 ASSERT (strcmp (result, "999.95 33") == 0);
2867 ASSERT (retval == strlen (result));
2870 { /* Precision with rounding. */
2873 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.996L, 33, 44, 55);
2874 ASSERT (strcmp (result, "1000 33") == 0);
2875 ASSERT (retval == strlen (result));
2878 /* Test the support of the %n format directive. */
2884 my_snprintf (result, sizeof (result), "%d %n", 123, &count, 33, 44, 55);
2885 ASSERT (strcmp (result, "123 ") == 0);
2886 ASSERT (retval == strlen (result));
2887 ASSERT (count == 4);
2890 /* Test the support of the POSIX/XSI format strings with positions. */
2895 my_snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
2896 ASSERT (strcmp (result, "55 33") == 0);
2897 ASSERT (retval == strlen (result));
2900 /* Test the support of the grouping flag. */
2905 my_snprintf (result, sizeof (result), "%'d %d", 1234567, 99);
2906 ASSERT (result[strlen (result) - 1] == '9');
2907 ASSERT (retval == strlen (result));
2910 /* Test the support of the left-adjust flag. */
2915 my_snprintf (result, sizeof (result), "a%*sc", -3, "b");
2916 ASSERT (strcmp (result, "ab c") == 0);
2917 ASSERT (retval == strlen (result));
2923 my_snprintf (result, sizeof (result), "a%-*sc", 3, "b");
2924 ASSERT (strcmp (result, "ab c") == 0);
2925 ASSERT (retval == strlen (result));
2931 my_snprintf (result, sizeof (result), "a%-*sc", -3, "b");
2932 ASSERT (strcmp (result, "ab c") == 0);
2933 ASSERT (retval == strlen (result));
2936 /* Test the support of large precision. */
2941 my_snprintf (result, sizeof (result), "%.4000d %d", 1234567, 99);
2943 ASSERT (result != NULL);
2944 for (i = 0; i < 4000 - 7; i++)
2945 ASSERT (result[i] == '0');
2946 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2947 ASSERT (retval == strlen (result));
2953 my_snprintf (result, sizeof (result), "%.4000d %d", -1234567, 99);
2955 ASSERT (result != NULL);
2956 ASSERT (result[0] == '-');
2957 for (i = 0; i < 4000 - 7; i++)
2958 ASSERT (result[1 + i] == '0');
2959 ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
2960 ASSERT (retval == strlen (result));
2966 my_snprintf (result, sizeof (result), "%.4000u %d", 1234567, 99);
2968 ASSERT (result != NULL);
2969 for (i = 0; i < 4000 - 7; i++)
2970 ASSERT (result[i] == '0');
2971 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2972 ASSERT (retval == strlen (result));
2978 my_snprintf (result, sizeof (result), "%.4000o %d", 1234567, 99);
2980 ASSERT (result != NULL);
2981 for (i = 0; i < 4000 - 7; i++)
2982 ASSERT (result[i] == '0');
2983 ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
2984 ASSERT (retval == strlen (result));
2990 my_snprintf (result, sizeof (result), "%.4000x %d", 1234567, 99);
2992 ASSERT (result != NULL);
2993 for (i = 0; i < 4000 - 6; i++)
2994 ASSERT (result[i] == '0');
2995 ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
2996 ASSERT (retval == strlen (result));
3002 my_snprintf (result, sizeof (result), "%#.4000x %d", 1234567, 99);
3004 ASSERT (result != NULL);
3005 ASSERT (result[0] == '0');
3006 ASSERT (result[1] == 'x');
3007 for (i = 0; i < 4000 - 6; i++)
3008 ASSERT (result[2 + i] == '0');
3009 ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
3010 ASSERT (retval == strlen (result));
3019 for (i = 0; i < sizeof (input) - 1; i++)
3020 input[i] = 'a' + ((1000000 / (i + 1)) % 26);
3022 retval = my_snprintf (result, sizeof (result), "%.4000s %d", input, 99);
3023 ASSERT (result != NULL);
3024 ASSERT (memcmp (result, input, 4000) == 0);
3025 ASSERT (strcmp (result + 4000, " 99") == 0);
3026 ASSERT (retval == strlen (result));