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 static double minus_zero = -0.0;
27 return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
30 /* Representation of an 80-bit 'long double' as an initializer for a sequence
31 of 'unsigned int' words. */
32 #ifdef WORDS_BIGENDIAN
33 # define LDBL80_WORDS(exponent,manthi,mantlo) \
34 { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
35 ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \
36 (unsigned int) (mantlo) << 16 \
39 # define LDBL80_WORDS(exponent,manthi,mantlo) \
40 { mantlo, manthi, exponent }
44 strmatch (const char *pattern, const char *string)
46 if (strlen (pattern) != strlen (string))
48 for (; *pattern != '\0'; pattern++, string++)
49 if (*pattern != '*' && *string != *pattern)
54 /* Test whether string[start_index..end_index-1] is a valid textual
55 representation of NaN. */
57 strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
59 if (start_index < end_index)
61 if (string[start_index] == '-')
63 if (start_index + 3 <= end_index
64 && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
67 if (start_index == end_index
68 || (string[start_index] == '(' && string[end_index - 1] == ')'))
76 test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
81 /* Test return value convention. */
83 for (size = 0; size <= 8; size++)
87 memcpy (buf, "DEADBEEF", 8);
88 retval = my_snprintf (buf, size, "%d", 12345);
94 ASSERT (memcmp (buf, "12345", size - 1) == 0);
95 ASSERT (buf[size - 1] == '\0');
97 ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
101 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
105 /* Test support of size specifiers as in C99. */
110 my_snprintf (result, sizeof (result), "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
111 ASSERT (strcmp (result, "12345671 33") == 0);
112 ASSERT (retval == strlen (result));
118 my_snprintf (result, sizeof (result), "%zu %d", (size_t) 12345672, 33, 44, 55);
119 ASSERT (strcmp (result, "12345672 33") == 0);
120 ASSERT (retval == strlen (result));
126 my_snprintf (result, sizeof (result), "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
127 ASSERT (strcmp (result, "12345673 33") == 0);
128 ASSERT (retval == strlen (result));
134 my_snprintf (result, sizeof (result), "%Lg %d", (long double) 1.5, 33, 44, 55);
135 ASSERT (strcmp (result, "1.5 33") == 0);
136 ASSERT (retval == strlen (result));
139 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
140 output of floating-point numbers. */
142 { /* A positive number. */
145 my_snprintf (result, sizeof (result), "%a %d", 3.1416015625, 33, 44, 55);
146 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
147 || strcmp (result, "0x3.244p+0 33") == 0
148 || strcmp (result, "0x6.488p-1 33") == 0
149 || strcmp (result, "0xc.91p-2 33") == 0);
150 ASSERT (retval == strlen (result));
153 { /* A negative number. */
156 my_snprintf (result, sizeof (result), "%A %d", -3.1416015625, 33, 44, 55);
157 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
158 || strcmp (result, "-0X3.244P+0 33") == 0
159 || strcmp (result, "-0X6.488P-1 33") == 0
160 || strcmp (result, "-0XC.91P-2 33") == 0);
161 ASSERT (retval == strlen (result));
164 { /* Positive zero. */
167 my_snprintf (result, sizeof (result), "%a %d", 0.0, 33, 44, 55);
168 ASSERT (strcmp (result, "0x0p+0 33") == 0);
169 ASSERT (retval == strlen (result));
172 { /* Negative zero. */
175 my_snprintf (result, sizeof (result), "%a %d", -0.0, 33, 44, 55);
176 if (have_minus_zero ())
177 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
178 ASSERT (retval == strlen (result));
181 { /* Positive infinity. */
184 my_snprintf (result, sizeof (result), "%a %d", 1.0 / 0.0, 33, 44, 55);
185 ASSERT (strcmp (result, "inf 33") == 0);
186 ASSERT (retval == strlen (result));
189 { /* Negative 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));
200 my_snprintf (result, sizeof (result), "%a %d", NaNd (), 33, 44, 55);
201 ASSERT (strlen (result) >= 3 + 3
202 && strisnan (result, 0, strlen (result) - 3, 0)
203 && strcmp (result + strlen (result) - 3, " 33") == 0);
204 ASSERT (retval == strlen (result));
207 { /* Rounding near the decimal point. */
210 my_snprintf (result, sizeof (result), "%.0a %d", 1.5, 33, 44, 55);
211 ASSERT (strcmp (result, "0x2p+0 33") == 0
212 || strcmp (result, "0x3p-1 33") == 0
213 || strcmp (result, "0x6p-2 33") == 0
214 || strcmp (result, "0xcp-3 33") == 0);
215 ASSERT (retval == strlen (result));
218 { /* Rounding with precision 0. */
221 my_snprintf (result, sizeof (result), "%.0a %d", 1.51, 33, 44, 55);
222 ASSERT (strcmp (result, "0x2p+0 33") == 0
223 || strcmp (result, "0x3p-1 33") == 0
224 || strcmp (result, "0x6p-2 33") == 0
225 || strcmp (result, "0xcp-3 33") == 0);
226 ASSERT (retval == strlen (result));
229 { /* Rounding with precision 1. */
232 my_snprintf (result, sizeof (result), "%.1a %d", 1.51, 33, 44, 55);
233 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
234 || strcmp (result, "0x3.0p-1 33") == 0
235 || strcmp (result, "0x6.1p-2 33") == 0
236 || strcmp (result, "0xc.1p-3 33") == 0);
237 ASSERT (retval == strlen (result));
240 { /* Rounding with precision 2. */
243 my_snprintf (result, sizeof (result), "%.2a %d", 1.51, 33, 44, 55);
244 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
245 || strcmp (result, "0x3.05p-1 33") == 0
246 || strcmp (result, "0x6.0ap-2 33") == 0
247 || strcmp (result, "0xc.14p-3 33") == 0);
248 ASSERT (retval == strlen (result));
251 { /* Rounding with precision 3. */
254 my_snprintf (result, sizeof (result), "%.3a %d", 1.51, 33, 44, 55);
255 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
256 || strcmp (result, "0x3.052p-1 33") == 0
257 || strcmp (result, "0x6.0a4p-2 33") == 0
258 || strcmp (result, "0xc.148p-3 33") == 0);
259 ASSERT (retval == strlen (result));
262 { /* Rounding can turn a ...FFF into a ...000. */
265 my_snprintf (result, sizeof (result), "%.3a %d", 1.49999, 33, 44, 55);
266 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
267 || strcmp (result, "0x3.000p-1 33") == 0
268 || strcmp (result, "0x6.000p-2 33") == 0
269 || strcmp (result, "0xc.000p-3 33") == 0);
270 ASSERT (retval == strlen (result));
273 { /* Rounding can turn a ...FFF into a ...000.
274 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
277 my_snprintf (result, sizeof (result), "%.1a %d", 1.999, 33, 44, 55);
278 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
279 || strcmp (result, "0x2.0p+0 33") == 0
280 || strcmp (result, "0x4.0p-1 33") == 0
281 || strcmp (result, "0x8.0p-2 33") == 0);
282 ASSERT (retval == strlen (result));
288 my_snprintf (result, sizeof (result), "%10a %d", 1.75, 33, 44, 55);
289 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
290 || strcmp (result, " 0x3.8p-1 33") == 0
291 || strcmp (result, " 0x7p-2 33") == 0
292 || strcmp (result, " 0xep-3 33") == 0);
293 ASSERT (retval == strlen (result));
296 { /* Small precision. */
299 my_snprintf (result, sizeof (result), "%.10a %d", 1.75, 33, 44, 55);
300 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
301 || strcmp (result, "0x3.8000000000p-1 33") == 0
302 || strcmp (result, "0x7.0000000000p-2 33") == 0
303 || strcmp (result, "0xe.0000000000p-3 33") == 0);
304 ASSERT (retval == strlen (result));
307 { /* Large precision. */
310 my_snprintf (result, sizeof (result), "%.50a %d", 1.75, 33, 44, 55);
311 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
312 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
313 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
314 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
315 ASSERT (retval == strlen (result));
321 my_snprintf (result, sizeof (result), "%-10a %d", 1.75, 33, 44, 55);
322 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
323 || strcmp (result, "0x3.8p-1 33") == 0
324 || strcmp (result, "0x7p-2 33") == 0
325 || strcmp (result, "0xep-3 33") == 0);
326 ASSERT (retval == strlen (result));
329 { /* FLAG_SHOWSIGN. */
332 my_snprintf (result, sizeof (result), "%+a %d", 1.75, 33, 44, 55);
333 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
334 || strcmp (result, "+0x3.8p-1 33") == 0
335 || strcmp (result, "+0x7p-2 33") == 0
336 || strcmp (result, "+0xep-3 33") == 0);
337 ASSERT (retval == strlen (result));
343 my_snprintf (result, sizeof (result), "% a %d", 1.75, 33, 44, 55);
344 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
345 || strcmp (result, " 0x3.8p-1 33") == 0
346 || strcmp (result, " 0x7p-2 33") == 0
347 || strcmp (result, " 0xep-3 33") == 0);
348 ASSERT (retval == strlen (result));
354 my_snprintf (result, sizeof (result), "%#a %d", 1.75, 33, 44, 55);
355 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
356 || strcmp (result, "0x3.8p-1 33") == 0
357 || strcmp (result, "0x7.p-2 33") == 0
358 || strcmp (result, "0xe.p-3 33") == 0);
359 ASSERT (retval == strlen (result));
365 my_snprintf (result, sizeof (result), "%#a %d", 1.0, 33, 44, 55);
366 ASSERT (strcmp (result, "0x1.p+0 33") == 0
367 || strcmp (result, "0x2.p-1 33") == 0
368 || strcmp (result, "0x4.p-2 33") == 0
369 || strcmp (result, "0x8.p-3 33") == 0);
370 ASSERT (retval == strlen (result));
373 { /* FLAG_ZERO with finite number. */
376 my_snprintf (result, sizeof (result), "%010a %d", 1.75, 33, 44, 55);
377 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
378 || strcmp (result, "0x003.8p-1 33") == 0
379 || strcmp (result, "0x00007p-2 33") == 0
380 || strcmp (result, "0x0000ep-3 33") == 0);
381 ASSERT (retval == strlen (result));
384 { /* FLAG_ZERO with infinite number. */
387 my_snprintf (result, sizeof (result), "%010a %d", 1.0 / 0.0, 33, 44, 55);
388 /* "0000000inf 33" is not a valid result; see
389 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
390 ASSERT (strcmp (result, " inf 33") == 0);
391 ASSERT (retval == strlen (result));
394 { /* FLAG_ZERO with NaN. */
397 my_snprintf (result, sizeof (result), "%050a %d", NaNd (), 33, 44, 55);
398 /* "0000000nan 33" is not a valid result; see
399 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
400 ASSERT (strlen (result) == 50 + 3
401 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
402 && strcmp (result + strlen (result) - 3, " 33") == 0);
403 ASSERT (retval == strlen (result));
406 { /* A positive number. */
409 my_snprintf (result, sizeof (result), "%La %d", 3.1416015625L, 33, 44, 55);
410 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
411 || strcmp (result, "0x3.244p+0 33") == 0
412 || strcmp (result, "0x6.488p-1 33") == 0
413 || strcmp (result, "0xc.91p-2 33") == 0);
414 ASSERT (retval == strlen (result));
417 { /* A negative number. */
420 my_snprintf (result, sizeof (result), "%LA %d", -3.1416015625L, 33, 44, 55);
421 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
422 || strcmp (result, "-0X3.244P+0 33") == 0
423 || strcmp (result, "-0X6.488P-1 33") == 0
424 || strcmp (result, "-0XC.91P-2 33") == 0);
425 ASSERT (retval == strlen (result));
428 { /* Positive zero. */
431 my_snprintf (result, sizeof (result), "%La %d", 0.0L, 33, 44, 55);
432 ASSERT (strcmp (result, "0x0p+0 33") == 0);
433 ASSERT (retval == strlen (result));
436 { /* Negative zero. */
439 my_snprintf (result, sizeof (result), "%La %d", -0.0L, 33, 44, 55);
440 if (have_minus_zero ())
441 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
442 ASSERT (retval == strlen (result));
445 { /* Positive infinity. */
448 my_snprintf (result, sizeof (result), "%La %d", 1.0L / 0.0L, 33, 44, 55);
449 ASSERT (strcmp (result, "inf 33") == 0);
450 ASSERT (retval == strlen (result));
453 { /* Negative 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));
464 my_snprintf (result, sizeof (result), "%La %d", NaNl (), 33, 44, 55);
465 ASSERT (strlen (result) >= 3 + 3
466 && strisnan (result, 0, strlen (result) - 3, 0)
467 && strcmp (result + strlen (result) - 3, " 33") == 0);
468 ASSERT (retval == strlen (result));
470 #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_))
472 static union { unsigned int word[4]; long double value; } x =
473 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
476 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
477 ASSERT (strlen (result) >= 3 + 3
478 && strisnan (result, 0, strlen (result) - 3, 0)
479 && strcmp (result + strlen (result) - 3, " 33") == 0);
480 ASSERT (retval == strlen (result));
483 /* Signalling NaN. */
484 static union { unsigned int word[4]; long double value; } x =
485 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
488 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
489 ASSERT (strlen (result) >= 3 + 3
490 && strisnan (result, 0, strlen (result) - 3, 0)
491 && strcmp (result + strlen (result) - 3, " 33") == 0);
492 ASSERT (retval == strlen (result));
494 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
495 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
496 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
497 Application Architecture.
498 Table 5-2 "Floating-Point Register Encodings"
499 Figure 5-6 "Memory to Floating-Point Register Data Translation"
502 static union { unsigned int word[4]; long double value; } x =
503 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
506 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
507 ASSERT (strlen (result) >= 3 + 3
508 && strisnan (result, 0, strlen (result) - 3, 0)
509 && strcmp (result + strlen (result) - 3, " 33") == 0);
510 ASSERT (retval == strlen (result));
512 { /* Pseudo-Infinity. */
513 static union { unsigned int word[4]; long double value; } x =
514 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
517 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
518 ASSERT (strlen (result) >= 3 + 3
519 && strisnan (result, 0, strlen (result) - 3, 0)
520 && strcmp (result + strlen (result) - 3, " 33") == 0);
521 ASSERT (retval == strlen (result));
524 static union { unsigned int word[4]; long double value; } x =
525 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
528 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
529 ASSERT (strlen (result) >= 3 + 3
530 && strisnan (result, 0, strlen (result) - 3, 0)
531 && strcmp (result + strlen (result) - 3, " 33") == 0);
532 ASSERT (retval == strlen (result));
534 { /* Unnormalized number. */
535 static union { unsigned int word[4]; long double value; } x =
536 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
539 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
540 ASSERT (strlen (result) >= 3 + 3
541 && strisnan (result, 0, strlen (result) - 3, 0)
542 && strcmp (result + strlen (result) - 3, " 33") == 0);
543 ASSERT (retval == strlen (result));
545 { /* Pseudo-Denormal. */
546 static union { unsigned int word[4]; long double value; } x =
547 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
550 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
551 ASSERT (strlen (result) >= 3 + 3
552 && strisnan (result, 0, strlen (result) - 3, 0)
553 && strcmp (result + strlen (result) - 3, " 33") == 0);
554 ASSERT (retval == strlen (result));
558 { /* Rounding near the decimal point. */
561 my_snprintf (result, sizeof (result), "%.0La %d", 1.5L, 33, 44, 55);
562 ASSERT (strcmp (result, "0x2p+0 33") == 0
563 || strcmp (result, "0x3p-1 33") == 0
564 || strcmp (result, "0x6p-2 33") == 0
565 || strcmp (result, "0xcp-3 33") == 0);
566 ASSERT (retval == strlen (result));
569 { /* Rounding with precision 0. */
572 my_snprintf (result, sizeof (result), "%.0La %d", 1.51L, 33, 44, 55);
573 ASSERT (strcmp (result, "0x2p+0 33") == 0
574 || strcmp (result, "0x3p-1 33") == 0
575 || strcmp (result, "0x6p-2 33") == 0
576 || strcmp (result, "0xcp-3 33") == 0);
577 ASSERT (retval == strlen (result));
580 { /* Rounding with precision 1. */
583 my_snprintf (result, sizeof (result), "%.1La %d", 1.51L, 33, 44, 55);
584 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
585 || strcmp (result, "0x3.0p-1 33") == 0
586 || strcmp (result, "0x6.1p-2 33") == 0
587 || strcmp (result, "0xc.1p-3 33") == 0);
588 ASSERT (retval == strlen (result));
591 { /* Rounding with precision 2. */
594 my_snprintf (result, sizeof (result), "%.2La %d", 1.51L, 33, 44, 55);
595 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
596 || strcmp (result, "0x3.05p-1 33") == 0
597 || strcmp (result, "0x6.0ap-2 33") == 0
598 || strcmp (result, "0xc.14p-3 33") == 0);
599 ASSERT (retval == strlen (result));
602 { /* Rounding with precision 3. */
605 my_snprintf (result, sizeof (result), "%.3La %d", 1.51L, 33, 44, 55);
606 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
607 || strcmp (result, "0x3.052p-1 33") == 0
608 || strcmp (result, "0x6.0a4p-2 33") == 0
609 || strcmp (result, "0xc.148p-3 33") == 0);
610 ASSERT (retval == strlen (result));
613 { /* Rounding can turn a ...FFF into a ...000. */
616 my_snprintf (result, sizeof (result), "%.3La %d", 1.49999L, 33, 44, 55);
617 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
618 || strcmp (result, "0x3.000p-1 33") == 0
619 || strcmp (result, "0x6.000p-2 33") == 0
620 || strcmp (result, "0xc.000p-3 33") == 0);
621 ASSERT (retval == strlen (result));
624 { /* Rounding can turn a ...FFF into a ...000.
625 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
626 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
629 my_snprintf (result, sizeof (result), "%.1La %d", 1.999L, 33, 44, 55);
630 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
631 || strcmp (result, "0x2.0p+0 33") == 0
632 || strcmp (result, "0x4.0p-1 33") == 0
633 || strcmp (result, "0x8.0p-2 33") == 0);
634 ASSERT (retval == strlen (result));
640 my_snprintf (result, sizeof (result), "%10La %d", 1.75L, 33, 44, 55);
641 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
642 || strcmp (result, " 0x3.8p-1 33") == 0
643 || strcmp (result, " 0x7p-2 33") == 0
644 || strcmp (result, " 0xep-3 33") == 0);
645 ASSERT (retval == strlen (result));
648 { /* Small precision. */
651 my_snprintf (result, sizeof (result), "%.10La %d", 1.75L, 33, 44, 55);
652 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
653 || strcmp (result, "0x3.8000000000p-1 33") == 0
654 || strcmp (result, "0x7.0000000000p-2 33") == 0
655 || strcmp (result, "0xe.0000000000p-3 33") == 0);
656 ASSERT (retval == strlen (result));
659 { /* Large precision. */
662 my_snprintf (result, sizeof (result), "%.50La %d", 1.75L, 33, 44, 55);
663 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
664 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
665 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
666 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
667 ASSERT (retval == strlen (result));
673 my_snprintf (result, sizeof (result), "%-10La %d", 1.75L, 33, 44, 55);
674 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
675 || strcmp (result, "0x3.8p-1 33") == 0
676 || strcmp (result, "0x7p-2 33") == 0
677 || strcmp (result, "0xep-3 33") == 0);
678 ASSERT (retval == strlen (result));
681 { /* FLAG_SHOWSIGN. */
684 my_snprintf (result, sizeof (result), "%+La %d", 1.75L, 33, 44, 55);
685 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
686 || strcmp (result, "+0x3.8p-1 33") == 0
687 || strcmp (result, "+0x7p-2 33") == 0
688 || strcmp (result, "+0xep-3 33") == 0);
689 ASSERT (retval == strlen (result));
695 my_snprintf (result, sizeof (result), "% La %d", 1.75L, 33, 44, 55);
696 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
697 || strcmp (result, " 0x3.8p-1 33") == 0
698 || strcmp (result, " 0x7p-2 33") == 0
699 || strcmp (result, " 0xep-3 33") == 0);
700 ASSERT (retval == strlen (result));
706 my_snprintf (result, sizeof (result), "%#La %d", 1.75L, 33, 44, 55);
707 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
708 || strcmp (result, "0x3.8p-1 33") == 0
709 || strcmp (result, "0x7.p-2 33") == 0
710 || strcmp (result, "0xe.p-3 33") == 0);
711 ASSERT (retval == strlen (result));
717 my_snprintf (result, sizeof (result), "%#La %d", 1.0L, 33, 44, 55);
718 ASSERT (strcmp (result, "0x1.p+0 33") == 0
719 || strcmp (result, "0x2.p-1 33") == 0
720 || strcmp (result, "0x4.p-2 33") == 0
721 || strcmp (result, "0x8.p-3 33") == 0);
722 ASSERT (retval == strlen (result));
725 { /* FLAG_ZERO with finite number. */
728 my_snprintf (result, sizeof (result), "%010La %d", 1.75L, 33, 44, 55);
729 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
730 || strcmp (result, "0x003.8p-1 33") == 0
731 || strcmp (result, "0x00007p-2 33") == 0
732 || strcmp (result, "0x0000ep-3 33") == 0);
733 ASSERT (retval == strlen (result));
736 { /* FLAG_ZERO with infinite number. */
739 my_snprintf (result, sizeof (result), "%010La %d", 1.0L / 0.0L, 33, 44, 55);
740 /* "0000000inf 33" is not a valid result; see
741 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
742 ASSERT (strcmp (result, " inf 33") == 0);
743 ASSERT (retval == strlen (result));
746 { /* FLAG_ZERO with NaN. */
749 my_snprintf (result, sizeof (result), "%050La %d", NaNl (), 33, 44, 55);
750 /* "0000000nan 33" is not a valid result; see
751 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
752 ASSERT (strlen (result) == 50 + 3
753 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
754 && strcmp (result + strlen (result) - 3, " 33") == 0);
755 ASSERT (retval == strlen (result));
758 /* Test the support of the %f format directive. */
760 { /* A positive number. */
763 my_snprintf (result, sizeof (result), "%f %d", 12.75, 33, 44, 55);
764 ASSERT (strcmp (result, "12.750000 33") == 0);
765 ASSERT (retval == strlen (result));
768 { /* A larger positive number. */
771 my_snprintf (result, sizeof (result), "%f %d", 1234567.0, 33, 44, 55);
772 ASSERT (strcmp (result, "1234567.000000 33") == 0);
773 ASSERT (retval == strlen (result));
776 { /* Small and large positive numbers. */
777 static struct { double value; const char *string; } data[] =
779 { 1.234321234321234e-37, "0.000000" },
780 { 1.234321234321234e-36, "0.000000" },
781 { 1.234321234321234e-35, "0.000000" },
782 { 1.234321234321234e-34, "0.000000" },
783 { 1.234321234321234e-33, "0.000000" },
784 { 1.234321234321234e-32, "0.000000" },
785 { 1.234321234321234e-31, "0.000000" },
786 { 1.234321234321234e-30, "0.000000" },
787 { 1.234321234321234e-29, "0.000000" },
788 { 1.234321234321234e-28, "0.000000" },
789 { 1.234321234321234e-27, "0.000000" },
790 { 1.234321234321234e-26, "0.000000" },
791 { 1.234321234321234e-25, "0.000000" },
792 { 1.234321234321234e-24, "0.000000" },
793 { 1.234321234321234e-23, "0.000000" },
794 { 1.234321234321234e-22, "0.000000" },
795 { 1.234321234321234e-21, "0.000000" },
796 { 1.234321234321234e-20, "0.000000" },
797 { 1.234321234321234e-19, "0.000000" },
798 { 1.234321234321234e-18, "0.000000" },
799 { 1.234321234321234e-17, "0.000000" },
800 { 1.234321234321234e-16, "0.000000" },
801 { 1.234321234321234e-15, "0.000000" },
802 { 1.234321234321234e-14, "0.000000" },
803 { 1.234321234321234e-13, "0.000000" },
804 { 1.234321234321234e-12, "0.000000" },
805 { 1.234321234321234e-11, "0.000000" },
806 { 1.234321234321234e-10, "0.000000" },
807 { 1.234321234321234e-9, "0.000000" },
808 { 1.234321234321234e-8, "0.000000" },
809 { 1.234321234321234e-7, "0.000000" },
810 { 1.234321234321234e-6, "0.000001" },
811 { 1.234321234321234e-5, "0.000012" },
812 { 1.234321234321234e-4, "0.000123" },
813 { 1.234321234321234e-3, "0.001234" },
814 { 1.234321234321234e-2, "0.012343" },
815 { 1.234321234321234e-1, "0.123432" },
816 { 1.234321234321234, "1.234321" },
817 { 1.234321234321234e1, "12.343212" },
818 { 1.234321234321234e2, "123.432123" },
819 { 1.234321234321234e3, "1234.321234" },
820 { 1.234321234321234e4, "12343.212343" },
821 { 1.234321234321234e5, "123432.123432" },
822 { 1.234321234321234e6, "1234321.234321" },
823 { 1.234321234321234e7, "12343212.343212" },
824 { 1.234321234321234e8, "123432123.432123" },
825 { 1.234321234321234e9, "1234321234.321234" },
826 { 1.234321234321234e10, "12343212343.2123**" },
827 { 1.234321234321234e11, "123432123432.123***" },
828 { 1.234321234321234e12, "1234321234321.23****" },
829 { 1.234321234321234e13, "12343212343212.3*****" },
830 { 1.234321234321234e14, "123432123432123.******" },
831 { 1.234321234321234e15, "1234321234321234.000000" },
832 { 1.234321234321234e16, "123432123432123**.000000" },
833 { 1.234321234321234e17, "123432123432123***.000000" },
834 { 1.234321234321234e18, "123432123432123****.000000" },
835 { 1.234321234321234e19, "123432123432123*****.000000" },
836 { 1.234321234321234e20, "123432123432123******.000000" },
837 { 1.234321234321234e21, "123432123432123*******.000000" },
838 { 1.234321234321234e22, "123432123432123********.000000" },
839 { 1.234321234321234e23, "123432123432123*********.000000" },
840 { 1.234321234321234e24, "123432123432123**********.000000" },
841 { 1.234321234321234e25, "123432123432123***********.000000" },
842 { 1.234321234321234e26, "123432123432123************.000000" },
843 { 1.234321234321234e27, "123432123432123*************.000000" },
844 { 1.234321234321234e28, "123432123432123**************.000000" },
845 { 1.234321234321234e29, "123432123432123***************.000000" },
846 { 1.234321234321234e30, "123432123432123****************.000000" },
847 { 1.234321234321234e31, "123432123432123*****************.000000" },
848 { 1.234321234321234e32, "123432123432123******************.000000" },
849 { 1.234321234321234e33, "123432123432123*******************.000000" },
850 { 1.234321234321234e34, "123432123432123********************.000000" },
851 { 1.234321234321234e35, "123432123432123*********************.000000" },
852 { 1.234321234321234e36, "123432123432123**********************.000000" }
855 for (k = 0; k < SIZEOF (data); k++)
859 my_snprintf (result, sizeof (result), "%f", data[k].value);
860 ASSERT (strmatch (data[k].string, result));
861 ASSERT (retval == strlen (result));
865 { /* A negative number. */
868 my_snprintf (result, sizeof (result), "%f %d", -0.03125, 33, 44, 55);
869 ASSERT (strcmp (result, "-0.031250 33") == 0);
870 ASSERT (retval == strlen (result));
873 { /* Positive zero. */
876 my_snprintf (result, sizeof (result), "%f %d", 0.0, 33, 44, 55);
877 ASSERT (strcmp (result, "0.000000 33") == 0);
878 ASSERT (retval == strlen (result));
881 { /* Negative zero. */
884 my_snprintf (result, sizeof (result), "%f %d", -0.0, 33, 44, 55);
885 if (have_minus_zero ())
886 ASSERT (strcmp (result, "-0.000000 33") == 0);
887 ASSERT (retval == strlen (result));
890 { /* Positive infinity. */
893 my_snprintf (result, sizeof (result), "%f %d", 1.0 / 0.0, 33, 44, 55);
894 ASSERT (strcmp (result, "inf 33") == 0
895 || strcmp (result, "infinity 33") == 0);
896 ASSERT (retval == strlen (result));
899 { /* Negative infinity. */
902 my_snprintf (result, sizeof (result), "%f %d", -1.0 / 0.0, 33, 44, 55);
903 ASSERT (strcmp (result, "-inf 33") == 0
904 || strcmp (result, "-infinity 33") == 0);
905 ASSERT (retval == strlen (result));
911 my_snprintf (result, sizeof (result), "%f %d", NaNd (), 33, 44, 55);
912 ASSERT (strlen (result) >= 3 + 3
913 && strisnan (result, 0, strlen (result) - 3, 0)
914 && strcmp (result + strlen (result) - 3, " 33") == 0);
915 ASSERT (retval == strlen (result));
921 my_snprintf (result, sizeof (result), "%10f %d", 1.75, 33, 44, 55);
922 ASSERT (result != NULL);
923 ASSERT (strcmp (result, " 1.750000 33") == 0);
924 ASSERT (retval == strlen (result));
930 my_snprintf (result, sizeof (result), "%-10f %d", 1.75, 33, 44, 55);
931 ASSERT (result != NULL);
932 ASSERT (strcmp (result, "1.750000 33") == 0);
933 ASSERT (retval == strlen (result));
936 { /* FLAG_SHOWSIGN. */
939 my_snprintf (result, sizeof (result), "%+f %d", 1.75, 33, 44, 55);
940 ASSERT (result != NULL);
941 ASSERT (strcmp (result, "+1.750000 33") == 0);
942 ASSERT (retval == strlen (result));
948 my_snprintf (result, sizeof (result), "% f %d", 1.75, 33, 44, 55);
949 ASSERT (result != NULL);
950 ASSERT (strcmp (result, " 1.750000 33") == 0);
951 ASSERT (retval == strlen (result));
957 my_snprintf (result, sizeof (result), "%#f %d", 1.75, 33, 44, 55);
958 ASSERT (result != NULL);
959 ASSERT (strcmp (result, "1.750000 33") == 0);
960 ASSERT (retval == strlen (result));
966 my_snprintf (result, sizeof (result), "%#.f %d", 1.75, 33, 44, 55);
967 ASSERT (result != NULL);
968 ASSERT (strcmp (result, "2. 33") == 0);
969 ASSERT (retval == strlen (result));
972 { /* FLAG_ZERO with finite number. */
975 my_snprintf (result, sizeof (result), "%015f %d", 1234.0, 33, 44, 55);
976 ASSERT (strcmp (result, "00001234.000000 33") == 0);
977 ASSERT (retval == strlen (result));
980 { /* FLAG_ZERO with infinite number. */
983 my_snprintf (result, sizeof (result), "%015f %d", -1.0 / 0.0, 33, 44, 55);
984 ASSERT (strcmp (result, " -inf 33") == 0
985 || strcmp (result, " -infinity 33") == 0);
986 ASSERT (retval == strlen (result));
989 { /* FLAG_ZERO with NaN. */
992 my_snprintf (result, sizeof (result), "%050f %d", NaNd (), 33, 44, 55);
993 ASSERT (strlen (result) == 50 + 3
994 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
995 && strcmp (result + strlen (result) - 3, " 33") == 0);
996 ASSERT (retval == strlen (result));
1002 my_snprintf (result, sizeof (result), "%.f %d", 1234.0, 33, 44, 55);
1003 ASSERT (strcmp (result, "1234 33") == 0);
1004 ASSERT (retval == strlen (result));
1007 { /* Precision with no rounding. */
1010 my_snprintf (result, sizeof (result), "%.2f %d", 999.951, 33, 44, 55);
1011 ASSERT (strcmp (result, "999.95 33") == 0);
1012 ASSERT (retval == strlen (result));
1015 { /* Precision with rounding. */
1018 my_snprintf (result, sizeof (result), "%.2f %d", 999.996, 33, 44, 55);
1019 ASSERT (strcmp (result, "1000.00 33") == 0);
1020 ASSERT (retval == strlen (result));
1023 { /* A positive number. */
1026 my_snprintf (result, sizeof (result), "%Lf %d", 12.75L, 33, 44, 55);
1027 ASSERT (strcmp (result, "12.750000 33") == 0);
1028 ASSERT (retval == strlen (result));
1031 { /* A larger positive number. */
1034 my_snprintf (result, sizeof (result), "%Lf %d", 1234567.0L, 33, 44, 55);
1035 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1036 ASSERT (retval == strlen (result));
1039 { /* Small and large positive numbers. */
1040 static struct { long double value; const char *string; } data[] =
1042 { 1.234321234321234e-37L, "0.000000" },
1043 { 1.234321234321234e-36L, "0.000000" },
1044 { 1.234321234321234e-35L, "0.000000" },
1045 { 1.234321234321234e-34L, "0.000000" },
1046 { 1.234321234321234e-33L, "0.000000" },
1047 { 1.234321234321234e-32L, "0.000000" },
1048 { 1.234321234321234e-31L, "0.000000" },
1049 { 1.234321234321234e-30L, "0.000000" },
1050 { 1.234321234321234e-29L, "0.000000" },
1051 { 1.234321234321234e-28L, "0.000000" },
1052 { 1.234321234321234e-27L, "0.000000" },
1053 { 1.234321234321234e-26L, "0.000000" },
1054 { 1.234321234321234e-25L, "0.000000" },
1055 { 1.234321234321234e-24L, "0.000000" },
1056 { 1.234321234321234e-23L, "0.000000" },
1057 { 1.234321234321234e-22L, "0.000000" },
1058 { 1.234321234321234e-21L, "0.000000" },
1059 { 1.234321234321234e-20L, "0.000000" },
1060 { 1.234321234321234e-19L, "0.000000" },
1061 { 1.234321234321234e-18L, "0.000000" },
1062 { 1.234321234321234e-17L, "0.000000" },
1063 { 1.234321234321234e-16L, "0.000000" },
1064 { 1.234321234321234e-15L, "0.000000" },
1065 { 1.234321234321234e-14L, "0.000000" },
1066 { 1.234321234321234e-13L, "0.000000" },
1067 { 1.234321234321234e-12L, "0.000000" },
1068 { 1.234321234321234e-11L, "0.000000" },
1069 { 1.234321234321234e-10L, "0.000000" },
1070 { 1.234321234321234e-9L, "0.000000" },
1071 { 1.234321234321234e-8L, "0.000000" },
1072 { 1.234321234321234e-7L, "0.000000" },
1073 { 1.234321234321234e-6L, "0.000001" },
1074 { 1.234321234321234e-5L, "0.000012" },
1075 { 1.234321234321234e-4L, "0.000123" },
1076 { 1.234321234321234e-3L, "0.001234" },
1077 { 1.234321234321234e-2L, "0.012343" },
1078 { 1.234321234321234e-1L, "0.123432" },
1079 { 1.234321234321234L, "1.234321" },
1080 { 1.234321234321234e1L, "12.343212" },
1081 { 1.234321234321234e2L, "123.432123" },
1082 { 1.234321234321234e3L, "1234.321234" },
1083 { 1.234321234321234e4L, "12343.212343" },
1084 { 1.234321234321234e5L, "123432.123432" },
1085 { 1.234321234321234e6L, "1234321.234321" },
1086 { 1.234321234321234e7L, "12343212.343212" },
1087 { 1.234321234321234e8L, "123432123.432123" },
1088 { 1.234321234321234e9L, "1234321234.321234" },
1089 { 1.234321234321234e10L, "12343212343.2123**" },
1090 { 1.234321234321234e11L, "123432123432.123***" },
1091 { 1.234321234321234e12L, "1234321234321.23****" },
1092 { 1.234321234321234e13L, "12343212343212.3*****" },
1093 { 1.234321234321234e14L, "123432123432123.******" },
1094 { 1.234321234321234e15L, "1234321234321234.000000" },
1095 { 1.234321234321234e16L, "123432123432123**.000000" },
1096 { 1.234321234321234e17L, "123432123432123***.000000" },
1097 { 1.234321234321234e18L, "123432123432123****.000000" },
1098 { 1.234321234321234e19L, "123432123432123*****.000000" },
1099 { 1.234321234321234e20L, "123432123432123******.000000" },
1100 { 1.234321234321234e21L, "123432123432123*******.000000" },
1101 { 1.234321234321234e22L, "123432123432123********.000000" },
1102 { 1.234321234321234e23L, "123432123432123*********.000000" },
1103 { 1.234321234321234e24L, "123432123432123**********.000000" },
1104 { 1.234321234321234e25L, "123432123432123***********.000000" },
1105 { 1.234321234321234e26L, "123432123432123************.000000" },
1106 { 1.234321234321234e27L, "123432123432123*************.000000" },
1107 { 1.234321234321234e28L, "123432123432123**************.000000" },
1108 { 1.234321234321234e29L, "123432123432123***************.000000" },
1109 { 1.234321234321234e30L, "123432123432123****************.000000" },
1110 { 1.234321234321234e31L, "123432123432123*****************.000000" },
1111 { 1.234321234321234e32L, "123432123432123******************.000000" },
1112 { 1.234321234321234e33L, "123432123432123*******************.000000" },
1113 { 1.234321234321234e34L, "123432123432123********************.000000" },
1114 { 1.234321234321234e35L, "123432123432123*********************.000000" },
1115 { 1.234321234321234e36L, "123432123432123**********************.000000" }
1118 for (k = 0; k < SIZEOF (data); k++)
1122 my_snprintf (result, sizeof (result), "%Lf", data[k].value);
1123 ASSERT (strmatch (data[k].string, result));
1124 ASSERT (retval == strlen (result));
1128 { /* A negative number. */
1131 my_snprintf (result, sizeof (result), "%Lf %d", -0.03125L, 33, 44, 55);
1132 ASSERT (strcmp (result, "-0.031250 33") == 0);
1133 ASSERT (retval == strlen (result));
1136 { /* Positive zero. */
1139 my_snprintf (result, sizeof (result), "%Lf %d", 0.0L, 33, 44, 55);
1140 ASSERT (strcmp (result, "0.000000 33") == 0);
1141 ASSERT (retval == strlen (result));
1144 { /* Negative zero. */
1147 my_snprintf (result, sizeof (result), "%Lf %d", -0.0L, 33, 44, 55);
1148 if (have_minus_zero ())
1149 ASSERT (strcmp (result, "-0.000000 33") == 0);
1150 ASSERT (retval == strlen (result));
1153 { /* Positive infinity. */
1156 my_snprintf (result, sizeof (result), "%Lf %d", 1.0L / 0.0L, 33, 44, 55);
1157 ASSERT (strcmp (result, "inf 33") == 0
1158 || strcmp (result, "infinity 33") == 0);
1159 ASSERT (retval == strlen (result));
1162 { /* Negative infinity. */
1165 my_snprintf (result, sizeof (result), "%Lf %d", -1.0L / 0.0L, 33, 44, 55);
1166 ASSERT (strcmp (result, "-inf 33") == 0
1167 || strcmp (result, "-infinity 33") == 0);
1168 ASSERT (retval == strlen (result));
1174 my_snprintf (result, sizeof (result), "%Lf %d", NaNl (), 33, 44, 55);
1175 ASSERT (strlen (result) >= 3 + 3
1176 && strisnan (result, 0, strlen (result) - 3, 0)
1177 && strcmp (result + strlen (result) - 3, " 33") == 0);
1178 ASSERT (retval == strlen (result));
1180 #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_))
1182 static union { unsigned int word[4]; long double value; } x =
1183 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
1186 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1187 ASSERT (strlen (result) >= 3 + 3
1188 && strisnan (result, 0, strlen (result) - 3, 0)
1189 && strcmp (result + strlen (result) - 3, " 33") == 0);
1190 ASSERT (retval == strlen (result));
1193 /* Signalling NaN. */
1194 static union { unsigned int word[4]; long double value; } x =
1195 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
1198 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1199 ASSERT (strlen (result) >= 3 + 3
1200 && strisnan (result, 0, strlen (result) - 3, 0)
1201 && strcmp (result + strlen (result) - 3, " 33") == 0);
1202 ASSERT (retval == strlen (result));
1204 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
1205 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
1206 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
1207 Application Architecture.
1208 Table 5-2 "Floating-Point Register Encodings"
1209 Figure 5-6 "Memory to Floating-Point Register Data Translation"
1212 static union { unsigned int word[4]; long double value; } x =
1213 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
1216 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1217 ASSERT (strlen (result) >= 3 + 3
1218 && strisnan (result, 0, strlen (result) - 3, 0)
1219 && strcmp (result + strlen (result) - 3, " 33") == 0);
1220 ASSERT (retval == strlen (result));
1222 { /* Pseudo-Infinity. */
1223 static union { unsigned int word[4]; long double value; } x =
1224 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
1227 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1228 ASSERT (strlen (result) >= 3 + 3
1229 && strisnan (result, 0, strlen (result) - 3, 0)
1230 && strcmp (result + strlen (result) - 3, " 33") == 0);
1231 ASSERT (retval == strlen (result));
1233 { /* Pseudo-Zero. */
1234 static union { unsigned int word[4]; long double value; } x =
1235 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
1238 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1239 ASSERT (strlen (result) >= 3 + 3
1240 && strisnan (result, 0, strlen (result) - 3, 0)
1241 && strcmp (result + strlen (result) - 3, " 33") == 0);
1242 ASSERT (retval == strlen (result));
1244 { /* Unnormalized number. */
1245 static union { unsigned int word[4]; long double value; } x =
1246 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
1249 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1250 ASSERT (strlen (result) >= 3 + 3
1251 && strisnan (result, 0, strlen (result) - 3, 0)
1252 && strcmp (result + strlen (result) - 3, " 33") == 0);
1253 ASSERT (retval == strlen (result));
1255 { /* Pseudo-Denormal. */
1256 static union { unsigned int word[4]; long double value; } x =
1257 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
1260 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1261 ASSERT (strlen (result) >= 3 + 3
1262 && strisnan (result, 0, strlen (result) - 3, 0)
1263 && strcmp (result + strlen (result) - 3, " 33") == 0);
1264 ASSERT (retval == strlen (result));
1271 my_snprintf (result, sizeof (result), "%10Lf %d", 1.75L, 33, 44, 55);
1272 ASSERT (result != NULL);
1273 ASSERT (strcmp (result, " 1.750000 33") == 0);
1274 ASSERT (retval == strlen (result));
1280 my_snprintf (result, sizeof (result), "%-10Lf %d", 1.75L, 33, 44, 55);
1281 ASSERT (result != NULL);
1282 ASSERT (strcmp (result, "1.750000 33") == 0);
1283 ASSERT (retval == strlen (result));
1286 { /* FLAG_SHOWSIGN. */
1289 my_snprintf (result, sizeof (result), "%+Lf %d", 1.75L, 33, 44, 55);
1290 ASSERT (result != NULL);
1291 ASSERT (strcmp (result, "+1.750000 33") == 0);
1292 ASSERT (retval == strlen (result));
1298 my_snprintf (result, sizeof (result), "% Lf %d", 1.75L, 33, 44, 55);
1299 ASSERT (result != NULL);
1300 ASSERT (strcmp (result, " 1.750000 33") == 0);
1301 ASSERT (retval == strlen (result));
1307 my_snprintf (result, sizeof (result), "%#Lf %d", 1.75L, 33, 44, 55);
1308 ASSERT (result != NULL);
1309 ASSERT (strcmp (result, "1.750000 33") == 0);
1310 ASSERT (retval == strlen (result));
1316 my_snprintf (result, sizeof (result), "%#.Lf %d", 1.75L, 33, 44, 55);
1317 ASSERT (result != NULL);
1318 ASSERT (strcmp (result, "2. 33") == 0);
1319 ASSERT (retval == strlen (result));
1322 { /* FLAG_ZERO with finite number. */
1325 my_snprintf (result, sizeof (result), "%015Lf %d", 1234.0L, 33, 44, 55);
1326 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1327 ASSERT (retval == strlen (result));
1330 { /* FLAG_ZERO with infinite number. */
1333 my_snprintf (result, sizeof (result), "%015Lf %d", -1.0L / 0.0L, 33, 44, 55);
1334 ASSERT (strcmp (result, " -inf 33") == 0
1335 || strcmp (result, " -infinity 33") == 0);
1336 ASSERT (retval == strlen (result));
1339 { /* FLAG_ZERO with NaN. */
1342 my_snprintf (result, sizeof (result), "%050Lf %d", NaNl (), 33, 44, 55);
1343 ASSERT (strlen (result) == 50 + 3
1344 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1345 && strcmp (result + strlen (result) - 3, " 33") == 0);
1346 ASSERT (retval == strlen (result));
1352 my_snprintf (result, sizeof (result), "%.Lf %d", 1234.0L, 33, 44, 55);
1353 ASSERT (strcmp (result, "1234 33") == 0);
1354 ASSERT (retval == strlen (result));
1357 { /* Precision with no rounding. */
1360 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.951L, 33, 44, 55);
1361 ASSERT (strcmp (result, "999.95 33") == 0);
1362 ASSERT (retval == strlen (result));
1365 { /* Precision with rounding. */
1368 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.996L, 33, 44, 55);
1369 ASSERT (strcmp (result, "1000.00 33") == 0);
1370 ASSERT (retval == strlen (result));
1373 /* Test the support of the %F format directive. */
1375 { /* A positive number. */
1378 my_snprintf (result, sizeof (result), "%F %d", 12.75, 33, 44, 55);
1379 ASSERT (strcmp (result, "12.750000 33") == 0);
1380 ASSERT (retval == strlen (result));
1383 { /* A larger positive number. */
1386 my_snprintf (result, sizeof (result), "%F %d", 1234567.0, 33, 44, 55);
1387 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1388 ASSERT (retval == strlen (result));
1391 { /* A negative number. */
1394 my_snprintf (result, sizeof (result), "%F %d", -0.03125, 33, 44, 55);
1395 ASSERT (strcmp (result, "-0.031250 33") == 0);
1396 ASSERT (retval == strlen (result));
1399 { /* Positive zero. */
1402 my_snprintf (result, sizeof (result), "%F %d", 0.0, 33, 44, 55);
1403 ASSERT (strcmp (result, "0.000000 33") == 0);
1404 ASSERT (retval == strlen (result));
1407 { /* Negative zero. */
1410 my_snprintf (result, sizeof (result), "%F %d", -0.0, 33, 44, 55);
1411 if (have_minus_zero ())
1412 ASSERT (strcmp (result, "-0.000000 33") == 0);
1413 ASSERT (retval == strlen (result));
1416 { /* Positive infinity. */
1419 my_snprintf (result, sizeof (result), "%F %d", 1.0 / 0.0, 33, 44, 55);
1420 ASSERT (strcmp (result, "INF 33") == 0
1421 || strcmp (result, "INFINITY 33") == 0);
1422 ASSERT (retval == strlen (result));
1425 { /* Negative infinity. */
1428 my_snprintf (result, sizeof (result), "%F %d", -1.0 / 0.0, 33, 44, 55);
1429 ASSERT (strcmp (result, "-INF 33") == 0
1430 || strcmp (result, "-INFINITY 33") == 0);
1431 ASSERT (retval == strlen (result));
1437 my_snprintf (result, sizeof (result), "%F %d", NaNd (), 33, 44, 55);
1438 ASSERT (strlen (result) >= 3 + 3
1439 && strisnan (result, 0, strlen (result) - 3, 1)
1440 && strcmp (result + strlen (result) - 3, " 33") == 0);
1441 ASSERT (retval == strlen (result));
1447 my_snprintf (result, sizeof (result), "%015F %d", 1234.0, 33, 44, 55);
1448 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1449 ASSERT (retval == strlen (result));
1452 { /* FLAG_ZERO with infinite number. */
1455 my_snprintf (result, sizeof (result), "%015F %d", -1.0 / 0.0, 33, 44, 55);
1456 ASSERT (strcmp (result, " -INF 33") == 0
1457 || strcmp (result, " -INFINITY 33") == 0);
1458 ASSERT (retval == strlen (result));
1464 my_snprintf (result, sizeof (result), "%.F %d", 1234.0, 33, 44, 55);
1465 ASSERT (strcmp (result, "1234 33") == 0);
1466 ASSERT (retval == strlen (result));
1469 { /* Precision with no rounding. */
1472 my_snprintf (result, sizeof (result), "%.2F %d", 999.951, 33, 44, 55);
1473 ASSERT (strcmp (result, "999.95 33") == 0);
1474 ASSERT (retval == strlen (result));
1477 { /* Precision with rounding. */
1480 my_snprintf (result, sizeof (result), "%.2F %d", 999.996, 33, 44, 55);
1481 ASSERT (strcmp (result, "1000.00 33") == 0);
1482 ASSERT (retval == strlen (result));
1485 { /* A positive number. */
1488 my_snprintf (result, sizeof (result), "%LF %d", 12.75L, 33, 44, 55);
1489 ASSERT (strcmp (result, "12.750000 33") == 0);
1490 ASSERT (retval == strlen (result));
1493 { /* A larger positive number. */
1496 my_snprintf (result, sizeof (result), "%LF %d", 1234567.0L, 33, 44, 55);
1497 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1498 ASSERT (retval == strlen (result));
1501 { /* A negative number. */
1504 my_snprintf (result, sizeof (result), "%LF %d", -0.03125L, 33, 44, 55);
1505 ASSERT (strcmp (result, "-0.031250 33") == 0);
1506 ASSERT (retval == strlen (result));
1509 { /* Positive zero. */
1512 my_snprintf (result, sizeof (result), "%LF %d", 0.0L, 33, 44, 55);
1513 ASSERT (strcmp (result, "0.000000 33") == 0);
1514 ASSERT (retval == strlen (result));
1517 { /* Negative zero. */
1520 my_snprintf (result, sizeof (result), "%LF %d", -0.0L, 33, 44, 55);
1521 if (have_minus_zero ())
1522 ASSERT (strcmp (result, "-0.000000 33") == 0);
1523 ASSERT (retval == strlen (result));
1526 { /* Positive infinity. */
1529 my_snprintf (result, sizeof (result), "%LF %d", 1.0L / 0.0L, 33, 44, 55);
1530 ASSERT (strcmp (result, "INF 33") == 0
1531 || strcmp (result, "INFINITY 33") == 0);
1532 ASSERT (retval == strlen (result));
1535 { /* Negative infinity. */
1538 my_snprintf (result, sizeof (result), "%LF %d", -1.0L / 0.0L, 33, 44, 55);
1539 ASSERT (strcmp (result, "-INF 33") == 0
1540 || strcmp (result, "-INFINITY 33") == 0);
1541 ASSERT (retval == strlen (result));
1547 my_snprintf (result, sizeof (result), "%LF %d", NaNl (), 33, 44, 55);
1548 ASSERT (strlen (result) >= 3 + 3
1549 && strisnan (result, 0, strlen (result) - 3, 1)
1550 && strcmp (result + strlen (result) - 3, " 33") == 0);
1551 ASSERT (retval == strlen (result));
1557 my_snprintf (result, sizeof (result), "%015LF %d", 1234.0L, 33, 44, 55);
1558 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1559 ASSERT (retval == strlen (result));
1562 { /* FLAG_ZERO with infinite number. */
1565 my_snprintf (result, sizeof (result), "%015LF %d", -1.0L / 0.0L, 33, 44, 55);
1566 ASSERT (strcmp (result, " -INF 33") == 0
1567 || strcmp (result, " -INFINITY 33") == 0);
1568 ASSERT (retval == strlen (result));
1574 my_snprintf (result, sizeof (result), "%.LF %d", 1234.0L, 33, 44, 55);
1575 ASSERT (strcmp (result, "1234 33") == 0);
1576 ASSERT (retval == strlen (result));
1579 { /* Precision with no rounding. */
1582 my_snprintf (result, sizeof (result), "%.2LF %d", 999.951L, 33, 44, 55);
1583 ASSERT (strcmp (result, "999.95 33") == 0);
1584 ASSERT (retval == strlen (result));
1587 { /* Precision with rounding. */
1590 my_snprintf (result, sizeof (result), "%.2LF %d", 999.996L, 33, 44, 55);
1591 ASSERT (strcmp (result, "1000.00 33") == 0);
1592 ASSERT (retval == strlen (result));
1595 /* Test the support of the %e format directive. */
1597 { /* A positive number. */
1600 my_snprintf (result, sizeof (result), "%e %d", 12.75, 33, 44, 55);
1601 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1602 || strcmp (result, "1.275000e+001 33") == 0);
1603 ASSERT (retval == strlen (result));
1606 { /* A larger positive number. */
1609 my_snprintf (result, sizeof (result), "%e %d", 1234567.0, 33, 44, 55);
1610 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1611 || strcmp (result, "1.234567e+006 33") == 0);
1612 ASSERT (retval == strlen (result));
1615 { /* Small and large positive numbers. */
1616 static struct { double value; const char *string; } data[] =
1618 { 1.234321234321234e-37, "1.234321e-37" },
1619 { 1.234321234321234e-36, "1.234321e-36" },
1620 { 1.234321234321234e-35, "1.234321e-35" },
1621 { 1.234321234321234e-34, "1.234321e-34" },
1622 { 1.234321234321234e-33, "1.234321e-33" },
1623 { 1.234321234321234e-32, "1.234321e-32" },
1624 { 1.234321234321234e-31, "1.234321e-31" },
1625 { 1.234321234321234e-30, "1.234321e-30" },
1626 { 1.234321234321234e-29, "1.234321e-29" },
1627 { 1.234321234321234e-28, "1.234321e-28" },
1628 { 1.234321234321234e-27, "1.234321e-27" },
1629 { 1.234321234321234e-26, "1.234321e-26" },
1630 { 1.234321234321234e-25, "1.234321e-25" },
1631 { 1.234321234321234e-24, "1.234321e-24" },
1632 { 1.234321234321234e-23, "1.234321e-23" },
1633 { 1.234321234321234e-22, "1.234321e-22" },
1634 { 1.234321234321234e-21, "1.234321e-21" },
1635 { 1.234321234321234e-20, "1.234321e-20" },
1636 { 1.234321234321234e-19, "1.234321e-19" },
1637 { 1.234321234321234e-18, "1.234321e-18" },
1638 { 1.234321234321234e-17, "1.234321e-17" },
1639 { 1.234321234321234e-16, "1.234321e-16" },
1640 { 1.234321234321234e-15, "1.234321e-15" },
1641 { 1.234321234321234e-14, "1.234321e-14" },
1642 { 1.234321234321234e-13, "1.234321e-13" },
1643 { 1.234321234321234e-12, "1.234321e-12" },
1644 { 1.234321234321234e-11, "1.234321e-11" },
1645 { 1.234321234321234e-10, "1.234321e-10" },
1646 { 1.234321234321234e-9, "1.234321e-09" },
1647 { 1.234321234321234e-8, "1.234321e-08" },
1648 { 1.234321234321234e-7, "1.234321e-07" },
1649 { 1.234321234321234e-6, "1.234321e-06" },
1650 { 1.234321234321234e-5, "1.234321e-05" },
1651 { 1.234321234321234e-4, "1.234321e-04" },
1652 { 1.234321234321234e-3, "1.234321e-03" },
1653 { 1.234321234321234e-2, "1.234321e-02" },
1654 { 1.234321234321234e-1, "1.234321e-01" },
1655 { 1.234321234321234, "1.234321e+00" },
1656 { 1.234321234321234e1, "1.234321e+01" },
1657 { 1.234321234321234e2, "1.234321e+02" },
1658 { 1.234321234321234e3, "1.234321e+03" },
1659 { 1.234321234321234e4, "1.234321e+04" },
1660 { 1.234321234321234e5, "1.234321e+05" },
1661 { 1.234321234321234e6, "1.234321e+06" },
1662 { 1.234321234321234e7, "1.234321e+07" },
1663 { 1.234321234321234e8, "1.234321e+08" },
1664 { 1.234321234321234e9, "1.234321e+09" },
1665 { 1.234321234321234e10, "1.234321e+10" },
1666 { 1.234321234321234e11, "1.234321e+11" },
1667 { 1.234321234321234e12, "1.234321e+12" },
1668 { 1.234321234321234e13, "1.234321e+13" },
1669 { 1.234321234321234e14, "1.234321e+14" },
1670 { 1.234321234321234e15, "1.234321e+15" },
1671 { 1.234321234321234e16, "1.234321e+16" },
1672 { 1.234321234321234e17, "1.234321e+17" },
1673 { 1.234321234321234e18, "1.234321e+18" },
1674 { 1.234321234321234e19, "1.234321e+19" },
1675 { 1.234321234321234e20, "1.234321e+20" },
1676 { 1.234321234321234e21, "1.234321e+21" },
1677 { 1.234321234321234e22, "1.234321e+22" },
1678 { 1.234321234321234e23, "1.234321e+23" },
1679 { 1.234321234321234e24, "1.234321e+24" },
1680 { 1.234321234321234e25, "1.234321e+25" },
1681 { 1.234321234321234e26, "1.234321e+26" },
1682 { 1.234321234321234e27, "1.234321e+27" },
1683 { 1.234321234321234e28, "1.234321e+28" },
1684 { 1.234321234321234e29, "1.234321e+29" },
1685 { 1.234321234321234e30, "1.234321e+30" },
1686 { 1.234321234321234e31, "1.234321e+31" },
1687 { 1.234321234321234e32, "1.234321e+32" },
1688 { 1.234321234321234e33, "1.234321e+33" },
1689 { 1.234321234321234e34, "1.234321e+34" },
1690 { 1.234321234321234e35, "1.234321e+35" },
1691 { 1.234321234321234e36, "1.234321e+36" }
1694 for (k = 0; k < SIZEOF (data); k++)
1698 my_snprintf (result, sizeof (result), "%e", data[k].value);
1699 const char *expected = data[k].string;
1700 ASSERT (result != NULL);
1701 ASSERT (strcmp (result, expected) == 0
1702 /* Some implementations produce exponents with 3 digits. */
1703 || (strlen (result) == strlen (expected) + 1
1704 && memcmp (result, expected, strlen (expected) - 2) == 0
1705 && result[strlen (expected) - 2] == '0'
1706 && strcmp (result + strlen (expected) - 1,
1707 expected + strlen (expected) - 2)
1709 ASSERT (retval == strlen (result));
1713 { /* A negative number. */
1716 my_snprintf (result, sizeof (result), "%e %d", -0.03125, 33, 44, 55);
1717 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
1718 || strcmp (result, "-3.125000e-002 33") == 0);
1719 ASSERT (retval == strlen (result));
1722 { /* Positive zero. */
1725 my_snprintf (result, sizeof (result), "%e %d", 0.0, 33, 44, 55);
1726 ASSERT (strcmp (result, "0.000000e+00 33") == 0
1727 || strcmp (result, "0.000000e+000 33") == 0);
1728 ASSERT (retval == strlen (result));
1731 { /* Negative zero. */
1734 my_snprintf (result, sizeof (result), "%e %d", -0.0, 33, 44, 55);
1735 if (have_minus_zero ())
1736 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
1737 || strcmp (result, "-0.000000e+000 33") == 0);
1738 ASSERT (retval == strlen (result));
1741 { /* Positive infinity. */
1744 my_snprintf (result, sizeof (result), "%e %d", 1.0 / 0.0, 33, 44, 55);
1745 ASSERT (strcmp (result, "inf 33") == 0
1746 || strcmp (result, "infinity 33") == 0);
1747 ASSERT (retval == strlen (result));
1750 { /* Negative infinity. */
1753 my_snprintf (result, sizeof (result), "%e %d", -1.0 / 0.0, 33, 44, 55);
1754 ASSERT (strcmp (result, "-inf 33") == 0
1755 || strcmp (result, "-infinity 33") == 0);
1756 ASSERT (retval == strlen (result));
1762 my_snprintf (result, sizeof (result), "%e %d", NaNd (), 33, 44, 55);
1763 ASSERT (strlen (result) >= 3 + 3
1764 && strisnan (result, 0, strlen (result) - 3, 0)
1765 && strcmp (result + strlen (result) - 3, " 33") == 0);
1766 ASSERT (retval == strlen (result));
1772 my_snprintf (result, sizeof (result), "%15e %d", 1.75, 33, 44, 55);
1773 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1774 || strcmp (result, " 1.750000e+000 33") == 0);
1775 ASSERT (retval == strlen (result));
1781 my_snprintf (result, sizeof (result), "%-15e %d", 1.75, 33, 44, 55);
1782 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1783 || strcmp (result, "1.750000e+000 33") == 0);
1784 ASSERT (retval == strlen (result));
1787 { /* FLAG_SHOWSIGN. */
1790 my_snprintf (result, sizeof (result), "%+e %d", 1.75, 33, 44, 55);
1791 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
1792 || strcmp (result, "+1.750000e+000 33") == 0);
1793 ASSERT (retval == strlen (result));
1799 my_snprintf (result, sizeof (result), "% e %d", 1.75, 33, 44, 55);
1800 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1801 || strcmp (result, " 1.750000e+000 33") == 0);
1802 ASSERT (retval == strlen (result));
1808 my_snprintf (result, sizeof (result), "%#e %d", 1.75, 33, 44, 55);
1809 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1810 || strcmp (result, "1.750000e+000 33") == 0);
1811 ASSERT (retval == strlen (result));
1817 my_snprintf (result, sizeof (result), "%#.e %d", 1.75, 33, 44, 55);
1818 ASSERT (strcmp (result, "2.e+00 33") == 0
1819 || strcmp (result, "2.e+000 33") == 0);
1820 ASSERT (retval == strlen (result));
1826 my_snprintf (result, sizeof (result), "%#.e %d", 9.75, 33, 44, 55);
1827 ASSERT (strcmp (result, "1.e+01 33") == 0
1828 || strcmp (result, "1.e+001 33") == 0);
1829 ASSERT (retval == strlen (result));
1832 { /* FLAG_ZERO with finite number. */
1835 my_snprintf (result, sizeof (result), "%015e %d", 1234.0, 33, 44, 55);
1836 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
1837 || strcmp (result, "001.234000e+003 33") == 0);
1838 ASSERT (retval == strlen (result));
1841 { /* FLAG_ZERO with infinite number. */
1844 my_snprintf (result, sizeof (result), "%015e %d", -1.0 / 0.0, 33, 44, 55);
1845 ASSERT (strcmp (result, " -inf 33") == 0
1846 || strcmp (result, " -infinity 33") == 0);
1847 ASSERT (retval == strlen (result));
1850 { /* FLAG_ZERO with NaN. */
1853 my_snprintf (result, sizeof (result), "%050e %d", NaNd (), 33, 44, 55);
1854 ASSERT (strlen (result) == 50 + 3
1855 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1856 && strcmp (result + strlen (result) - 3, " 33") == 0);
1857 ASSERT (retval == strlen (result));
1863 my_snprintf (result, sizeof (result), "%.e %d", 1234.0, 33, 44, 55);
1864 ASSERT (strcmp (result, "1e+03 33") == 0
1865 || strcmp (result, "1e+003 33") == 0);
1866 ASSERT (retval == strlen (result));
1869 { /* Precision with no rounding. */
1872 my_snprintf (result, sizeof (result), "%.4e %d", 999.951, 33, 44, 55);
1873 ASSERT (strcmp (result, "9.9995e+02 33") == 0
1874 || strcmp (result, "9.9995e+002 33") == 0);
1875 ASSERT (retval == strlen (result));
1878 { /* Precision with rounding. */
1881 my_snprintf (result, sizeof (result), "%.4e %d", 999.996, 33, 44, 55);
1882 ASSERT (strcmp (result, "1.0000e+03 33") == 0
1883 || strcmp (result, "1.0000e+003 33") == 0);
1884 ASSERT (retval == strlen (result));
1887 { /* A positive number. */
1890 my_snprintf (result, sizeof (result), "%Le %d", 12.75L, 33, 44, 55);
1891 ASSERT (strcmp (result, "1.275000e+01 33") == 0);
1892 ASSERT (retval == strlen (result));
1895 { /* A larger positive number. */
1898 my_snprintf (result, sizeof (result), "%Le %d", 1234567.0L, 33, 44, 55);
1899 ASSERT (strcmp (result, "1.234567e+06 33") == 0);
1900 ASSERT (retval == strlen (result));
1903 { /* Small and large positive numbers. */
1904 static struct { long double value; const char *string; } data[] =
1906 { 1.234321234321234e-37L, "1.234321e-37" },
1907 { 1.234321234321234e-36L, "1.234321e-36" },
1908 { 1.234321234321234e-35L, "1.234321e-35" },
1909 { 1.234321234321234e-34L, "1.234321e-34" },
1910 { 1.234321234321234e-33L, "1.234321e-33" },
1911 { 1.234321234321234e-32L, "1.234321e-32" },
1912 { 1.234321234321234e-31L, "1.234321e-31" },
1913 { 1.234321234321234e-30L, "1.234321e-30" },
1914 { 1.234321234321234e-29L, "1.234321e-29" },
1915 { 1.234321234321234e-28L, "1.234321e-28" },
1916 { 1.234321234321234e-27L, "1.234321e-27" },
1917 { 1.234321234321234e-26L, "1.234321e-26" },
1918 { 1.234321234321234e-25L, "1.234321e-25" },
1919 { 1.234321234321234e-24L, "1.234321e-24" },
1920 { 1.234321234321234e-23L, "1.234321e-23" },
1921 { 1.234321234321234e-22L, "1.234321e-22" },
1922 { 1.234321234321234e-21L, "1.234321e-21" },
1923 { 1.234321234321234e-20L, "1.234321e-20" },
1924 { 1.234321234321234e-19L, "1.234321e-19" },
1925 { 1.234321234321234e-18L, "1.234321e-18" },
1926 { 1.234321234321234e-17L, "1.234321e-17" },
1927 { 1.234321234321234e-16L, "1.234321e-16" },
1928 { 1.234321234321234e-15L, "1.234321e-15" },
1929 { 1.234321234321234e-14L, "1.234321e-14" },
1930 { 1.234321234321234e-13L, "1.234321e-13" },
1931 { 1.234321234321234e-12L, "1.234321e-12" },
1932 { 1.234321234321234e-11L, "1.234321e-11" },
1933 { 1.234321234321234e-10L, "1.234321e-10" },
1934 { 1.234321234321234e-9L, "1.234321e-09" },
1935 { 1.234321234321234e-8L, "1.234321e-08" },
1936 { 1.234321234321234e-7L, "1.234321e-07" },
1937 { 1.234321234321234e-6L, "1.234321e-06" },
1938 { 1.234321234321234e-5L, "1.234321e-05" },
1939 { 1.234321234321234e-4L, "1.234321e-04" },
1940 { 1.234321234321234e-3L, "1.234321e-03" },
1941 { 1.234321234321234e-2L, "1.234321e-02" },
1942 { 1.234321234321234e-1L, "1.234321e-01" },
1943 { 1.234321234321234L, "1.234321e+00" },
1944 { 1.234321234321234e1L, "1.234321e+01" },
1945 { 1.234321234321234e2L, "1.234321e+02" },
1946 { 1.234321234321234e3L, "1.234321e+03" },
1947 { 1.234321234321234e4L, "1.234321e+04" },
1948 { 1.234321234321234e5L, "1.234321e+05" },
1949 { 1.234321234321234e6L, "1.234321e+06" },
1950 { 1.234321234321234e7L, "1.234321e+07" },
1951 { 1.234321234321234e8L, "1.234321e+08" },
1952 { 1.234321234321234e9L, "1.234321e+09" },
1953 { 1.234321234321234e10L, "1.234321e+10" },
1954 { 1.234321234321234e11L, "1.234321e+11" },
1955 { 1.234321234321234e12L, "1.234321e+12" },
1956 { 1.234321234321234e13L, "1.234321e+13" },
1957 { 1.234321234321234e14L, "1.234321e+14" },
1958 { 1.234321234321234e15L, "1.234321e+15" },
1959 { 1.234321234321234e16L, "1.234321e+16" },
1960 { 1.234321234321234e17L, "1.234321e+17" },
1961 { 1.234321234321234e18L, "1.234321e+18" },
1962 { 1.234321234321234e19L, "1.234321e+19" },
1963 { 1.234321234321234e20L, "1.234321e+20" },
1964 { 1.234321234321234e21L, "1.234321e+21" },
1965 { 1.234321234321234e22L, "1.234321e+22" },
1966 { 1.234321234321234e23L, "1.234321e+23" },
1967 { 1.234321234321234e24L, "1.234321e+24" },
1968 { 1.234321234321234e25L, "1.234321e+25" },
1969 { 1.234321234321234e26L, "1.234321e+26" },
1970 { 1.234321234321234e27L, "1.234321e+27" },
1971 { 1.234321234321234e28L, "1.234321e+28" },
1972 { 1.234321234321234e29L, "1.234321e+29" },
1973 { 1.234321234321234e30L, "1.234321e+30" },
1974 { 1.234321234321234e31L, "1.234321e+31" },
1975 { 1.234321234321234e32L, "1.234321e+32" },
1976 { 1.234321234321234e33L, "1.234321e+33" },
1977 { 1.234321234321234e34L, "1.234321e+34" },
1978 { 1.234321234321234e35L, "1.234321e+35" },
1979 { 1.234321234321234e36L, "1.234321e+36" }
1982 for (k = 0; k < SIZEOF (data); k++)
1986 my_snprintf (result, sizeof (result), "%Le", data[k].value);
1987 ASSERT (strcmp (result, data[k].string) == 0);
1988 ASSERT (retval == strlen (result));
1992 { /* A negative number. */
1995 my_snprintf (result, sizeof (result), "%Le %d", -0.03125L, 33, 44, 55);
1996 ASSERT (strcmp (result, "-3.125000e-02 33") == 0);
1997 ASSERT (retval == strlen (result));
2000 { /* Positive zero. */
2003 my_snprintf (result, sizeof (result), "%Le %d", 0.0L, 33, 44, 55);
2004 ASSERT (strcmp (result, "0.000000e+00 33") == 0);
2005 ASSERT (retval == strlen (result));
2008 { /* Negative zero. */
2011 my_snprintf (result, sizeof (result), "%Le %d", -0.0L, 33, 44, 55);
2012 if (have_minus_zero ())
2013 ASSERT (strcmp (result, "-0.000000e+00 33") == 0);
2014 ASSERT (retval == strlen (result));
2017 { /* Positive infinity. */
2020 my_snprintf (result, sizeof (result), "%Le %d", 1.0L / 0.0L, 33, 44, 55);
2021 ASSERT (strcmp (result, "inf 33") == 0
2022 || strcmp (result, "infinity 33") == 0);
2023 ASSERT (retval == strlen (result));
2026 { /* Negative infinity. */
2029 my_snprintf (result, sizeof (result), "%Le %d", -1.0L / 0.0L, 33, 44, 55);
2030 ASSERT (strcmp (result, "-inf 33") == 0
2031 || strcmp (result, "-infinity 33") == 0);
2032 ASSERT (retval == strlen (result));
2038 my_snprintf (result, sizeof (result), "%Le %d", NaNl (), 33, 44, 55);
2039 ASSERT (strlen (result) >= 3 + 3
2040 && strisnan (result, 0, strlen (result) - 3, 0)
2041 && strcmp (result + strlen (result) - 3, " 33") == 0);
2042 ASSERT (retval == strlen (result));
2044 #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_))
2046 static union { unsigned int word[4]; long double value; } x =
2047 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2050 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2051 ASSERT (strlen (result) >= 3 + 3
2052 && strisnan (result, 0, strlen (result) - 3, 0)
2053 && strcmp (result + strlen (result) - 3, " 33") == 0);
2054 ASSERT (retval == strlen (result));
2057 /* Signalling NaN. */
2058 static union { unsigned int word[4]; long double value; } x =
2059 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2062 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2063 ASSERT (strlen (result) >= 3 + 3
2064 && strisnan (result, 0, strlen (result) - 3, 0)
2065 && strcmp (result + strlen (result) - 3, " 33") == 0);
2066 ASSERT (retval == strlen (result));
2068 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2069 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2070 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2071 Application Architecture.
2072 Table 5-2 "Floating-Point Register Encodings"
2073 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2076 static union { unsigned int word[4]; long double value; } x =
2077 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2080 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2081 ASSERT (strlen (result) >= 3 + 3
2082 && strisnan (result, 0, strlen (result) - 3, 0)
2083 && strcmp (result + strlen (result) - 3, " 33") == 0);
2084 ASSERT (retval == strlen (result));
2086 { /* Pseudo-Infinity. */
2087 static union { unsigned int word[4]; long double value; } x =
2088 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2091 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2092 ASSERT (strlen (result) >= 3 + 3
2093 && strisnan (result, 0, strlen (result) - 3, 0)
2094 && strcmp (result + strlen (result) - 3, " 33") == 0);
2095 ASSERT (retval == strlen (result));
2097 { /* Pseudo-Zero. */
2098 static union { unsigned int word[4]; long double value; } x =
2099 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2102 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2103 ASSERT (strlen (result) >= 3 + 3
2104 && strisnan (result, 0, strlen (result) - 3, 0)
2105 && strcmp (result + strlen (result) - 3, " 33") == 0);
2106 ASSERT (retval == strlen (result));
2108 { /* Unnormalized number. */
2109 static union { unsigned int word[4]; long double value; } x =
2110 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2113 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2114 ASSERT (strlen (result) >= 3 + 3
2115 && strisnan (result, 0, strlen (result) - 3, 0)
2116 && strcmp (result + strlen (result) - 3, " 33") == 0);
2117 ASSERT (retval == strlen (result));
2119 { /* Pseudo-Denormal. */
2120 static union { unsigned int word[4]; long double value; } x =
2121 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2124 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2125 ASSERT (strlen (result) >= 3 + 3
2126 && strisnan (result, 0, strlen (result) - 3, 0)
2127 && strcmp (result + strlen (result) - 3, " 33") == 0);
2128 ASSERT (retval == strlen (result));
2135 my_snprintf (result, sizeof (result), "%15Le %d", 1.75L, 33, 44, 55);
2136 ASSERT (strcmp (result, " 1.750000e+00 33") == 0);
2137 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));
2148 { /* FLAG_SHOWSIGN. */
2151 my_snprintf (result, sizeof (result), "%+Le %d", 1.75L, 33, 44, 55);
2152 ASSERT (strcmp (result, "+1.750000e+00 33") == 0);
2153 ASSERT (retval == strlen (result));
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, "2.e+00 33") == 0);
2177 ASSERT (retval == strlen (result));
2183 my_snprintf (result, sizeof (result), "%#.Le %d", 9.75L, 33, 44, 55);
2184 ASSERT (strcmp (result, "1.e+01 33") == 0);
2185 ASSERT (retval == strlen (result));
2188 { /* FLAG_ZERO with finite number. */
2191 my_snprintf (result, sizeof (result), "%015Le %d", 1234.0L, 33, 44, 55);
2192 ASSERT (strcmp (result, "0001.234000e+03 33") == 0);
2193 ASSERT (retval == strlen (result));
2196 { /* FLAG_ZERO with infinite number. */
2199 my_snprintf (result, sizeof (result), "%015Le %d", -1.0L / 0.0L, 33, 44, 55);
2200 ASSERT (strcmp (result, " -inf 33") == 0
2201 || strcmp (result, " -infinity 33") == 0);
2202 ASSERT (retval == strlen (result));
2205 { /* FLAG_ZERO with NaN. */
2208 my_snprintf (result, sizeof (result), "%050Le %d", NaNl (), 33, 44, 55);
2209 ASSERT (strlen (result) == 50 + 3
2210 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2211 && strcmp (result + strlen (result) - 3, " 33") == 0);
2212 ASSERT (retval == strlen (result));
2218 my_snprintf (result, sizeof (result), "%.Le %d", 1234.0L, 33, 44, 55);
2219 ASSERT (strcmp (result, "1e+03 33") == 0);
2220 ASSERT (retval == strlen (result));
2223 { /* Precision with no rounding. */
2226 my_snprintf (result, sizeof (result), "%.4Le %d", 999.951L, 33, 44, 55);
2227 ASSERT (strcmp (result, "9.9995e+02 33") == 0);
2228 ASSERT (retval == strlen (result));
2231 { /* Precision with rounding. */
2234 my_snprintf (result, sizeof (result), "%.4Le %d", 999.996L, 33, 44, 55);
2235 ASSERT (strcmp (result, "1.0000e+03 33") == 0);
2236 ASSERT (retval == strlen (result));
2239 /* Test the support of the %g format directive. */
2241 { /* A positive number. */
2244 my_snprintf (result, sizeof (result), "%g %d", 12.75, 33, 44, 55);
2245 ASSERT (strcmp (result, "12.75 33") == 0);
2246 ASSERT (retval == strlen (result));
2249 { /* A larger positive number. */
2252 my_snprintf (result, sizeof (result), "%g %d", 1234567.0, 33, 44, 55);
2253 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2254 || strcmp (result, "1.23457e+006 33") == 0);
2255 ASSERT (retval == strlen (result));
2258 { /* Small and large positive numbers. */
2259 static struct { double value; const char *string; } data[] =
2261 { 1.234321234321234e-37, "1.23432e-37" },
2262 { 1.234321234321234e-36, "1.23432e-36" },
2263 { 1.234321234321234e-35, "1.23432e-35" },
2264 { 1.234321234321234e-34, "1.23432e-34" },
2265 { 1.234321234321234e-33, "1.23432e-33" },
2266 { 1.234321234321234e-32, "1.23432e-32" },
2267 { 1.234321234321234e-31, "1.23432e-31" },
2268 { 1.234321234321234e-30, "1.23432e-30" },
2269 { 1.234321234321234e-29, "1.23432e-29" },
2270 { 1.234321234321234e-28, "1.23432e-28" },
2271 { 1.234321234321234e-27, "1.23432e-27" },
2272 { 1.234321234321234e-26, "1.23432e-26" },
2273 { 1.234321234321234e-25, "1.23432e-25" },
2274 { 1.234321234321234e-24, "1.23432e-24" },
2275 { 1.234321234321234e-23, "1.23432e-23" },
2276 { 1.234321234321234e-22, "1.23432e-22" },
2277 { 1.234321234321234e-21, "1.23432e-21" },
2278 { 1.234321234321234e-20, "1.23432e-20" },
2279 { 1.234321234321234e-19, "1.23432e-19" },
2280 { 1.234321234321234e-18, "1.23432e-18" },
2281 { 1.234321234321234e-17, "1.23432e-17" },
2282 { 1.234321234321234e-16, "1.23432e-16" },
2283 { 1.234321234321234e-15, "1.23432e-15" },
2284 { 1.234321234321234e-14, "1.23432e-14" },
2285 { 1.234321234321234e-13, "1.23432e-13" },
2286 { 1.234321234321234e-12, "1.23432e-12" },
2287 { 1.234321234321234e-11, "1.23432e-11" },
2288 { 1.234321234321234e-10, "1.23432e-10" },
2289 { 1.234321234321234e-9, "1.23432e-09" },
2290 { 1.234321234321234e-8, "1.23432e-08" },
2291 { 1.234321234321234e-7, "1.23432e-07" },
2292 { 1.234321234321234e-6, "1.23432e-06" },
2293 { 1.234321234321234e-5, "1.23432e-05" },
2294 { 1.234321234321234e-4, "0.000123432" },
2295 { 1.234321234321234e-3, "0.00123432" },
2296 { 1.234321234321234e-2, "0.0123432" },
2297 { 1.234321234321234e-1, "0.123432" },
2298 { 1.234321234321234, "1.23432" },
2299 { 1.234321234321234e1, "12.3432" },
2300 { 1.234321234321234e2, "123.432" },
2301 { 1.234321234321234e3, "1234.32" },
2302 { 1.234321234321234e4, "12343.2" },
2303 { 1.234321234321234e5, "123432" },
2304 { 1.234321234321234e6, "1.23432e+06" },
2305 { 1.234321234321234e7, "1.23432e+07" },
2306 { 1.234321234321234e8, "1.23432e+08" },
2307 { 1.234321234321234e9, "1.23432e+09" },
2308 { 1.234321234321234e10, "1.23432e+10" },
2309 { 1.234321234321234e11, "1.23432e+11" },
2310 { 1.234321234321234e12, "1.23432e+12" },
2311 { 1.234321234321234e13, "1.23432e+13" },
2312 { 1.234321234321234e14, "1.23432e+14" },
2313 { 1.234321234321234e15, "1.23432e+15" },
2314 { 1.234321234321234e16, "1.23432e+16" },
2315 { 1.234321234321234e17, "1.23432e+17" },
2316 { 1.234321234321234e18, "1.23432e+18" },
2317 { 1.234321234321234e19, "1.23432e+19" },
2318 { 1.234321234321234e20, "1.23432e+20" },
2319 { 1.234321234321234e21, "1.23432e+21" },
2320 { 1.234321234321234e22, "1.23432e+22" },
2321 { 1.234321234321234e23, "1.23432e+23" },
2322 { 1.234321234321234e24, "1.23432e+24" },
2323 { 1.234321234321234e25, "1.23432e+25" },
2324 { 1.234321234321234e26, "1.23432e+26" },
2325 { 1.234321234321234e27, "1.23432e+27" },
2326 { 1.234321234321234e28, "1.23432e+28" },
2327 { 1.234321234321234e29, "1.23432e+29" },
2328 { 1.234321234321234e30, "1.23432e+30" },
2329 { 1.234321234321234e31, "1.23432e+31" },
2330 { 1.234321234321234e32, "1.23432e+32" },
2331 { 1.234321234321234e33, "1.23432e+33" },
2332 { 1.234321234321234e34, "1.23432e+34" },
2333 { 1.234321234321234e35, "1.23432e+35" },
2334 { 1.234321234321234e36, "1.23432e+36" }
2337 for (k = 0; k < SIZEOF (data); k++)
2341 my_snprintf (result, sizeof (result), "%g", data[k].value);
2342 const char *expected = data[k].string;
2343 ASSERT (strcmp (result, expected) == 0
2344 /* Some implementations produce exponents with 3 digits. */
2345 || (expected[strlen (expected) - 4] == 'e'
2346 && strlen (result) == strlen (expected) + 1
2347 && memcmp (result, expected, strlen (expected) - 2) == 0
2348 && result[strlen (expected) - 2] == '0'
2349 && strcmp (result + strlen (expected) - 1,
2350 expected + strlen (expected) - 2)
2352 ASSERT (retval == strlen (result));
2356 { /* A negative number. */
2359 my_snprintf (result, sizeof (result), "%g %d", -0.03125, 33, 44, 55);
2360 ASSERT (strcmp (result, "-0.03125 33") == 0);
2361 ASSERT (retval == strlen (result));
2364 { /* Positive zero. */
2367 my_snprintf (result, sizeof (result), "%g %d", 0.0, 33, 44, 55);
2368 ASSERT (strcmp (result, "0 33") == 0);
2369 ASSERT (retval == strlen (result));
2372 { /* Negative zero. */
2375 my_snprintf (result, sizeof (result), "%g %d", -0.0, 33, 44, 55);
2376 if (have_minus_zero ())
2377 ASSERT (strcmp (result, "-0 33") == 0);
2378 ASSERT (retval == strlen (result));
2381 { /* Positive infinity. */
2384 my_snprintf (result, sizeof (result), "%g %d", 1.0 / 0.0, 33, 44, 55);
2385 ASSERT (strcmp (result, "inf 33") == 0
2386 || strcmp (result, "infinity 33") == 0);
2387 ASSERT (retval == strlen (result));
2390 { /* Negative infinity. */
2393 my_snprintf (result, sizeof (result), "%g %d", -1.0 / 0.0, 33, 44, 55);
2394 ASSERT (strcmp (result, "-inf 33") == 0
2395 || strcmp (result, "-infinity 33") == 0);
2396 ASSERT (retval == strlen (result));
2402 my_snprintf (result, sizeof (result), "%g %d", NaNd (), 33, 44, 55);
2403 ASSERT (strlen (result) >= 3 + 3
2404 && strisnan (result, 0, strlen (result) - 3, 0)
2405 && strcmp (result + strlen (result) - 3, " 33") == 0);
2406 ASSERT (retval == strlen (result));
2412 my_snprintf (result, sizeof (result), "%10g %d", 1.75, 33, 44, 55);
2413 ASSERT (strcmp (result, " 1.75 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));
2425 { /* FLAG_SHOWSIGN. */
2428 my_snprintf (result, sizeof (result), "%+g %d", 1.75, 33, 44, 55);
2429 ASSERT (strcmp (result, "+1.75 33") == 0);
2430 ASSERT (retval == strlen (result));
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, "1.75000 33") == 0);
2446 ASSERT (retval == strlen (result));
2452 my_snprintf (result, sizeof (result), "%#.g %d", 1.75, 33, 44, 55);
2453 ASSERT (strcmp (result, "2. 33") == 0);
2454 ASSERT (retval == strlen (result));
2460 my_snprintf (result, sizeof (result), "%#.g %d", 9.75, 33, 44, 55);
2461 ASSERT (strcmp (result, "1.e+01 33") == 0
2462 || strcmp (result, "1.e+001 33") == 0);
2463 ASSERT (retval == strlen (result));
2466 { /* FLAG_ZERO with finite number. */
2469 my_snprintf (result, sizeof (result), "%010g %d", 1234.0, 33, 44, 55);
2470 ASSERT (strcmp (result, "0000001234 33") == 0);
2471 ASSERT (retval == strlen (result));
2474 { /* FLAG_ZERO with infinite number. */
2477 my_snprintf (result, sizeof (result), "%015g %d", -1.0 / 0.0, 33, 44, 55);
2478 ASSERT (strcmp (result, " -inf 33") == 0
2479 || strcmp (result, " -infinity 33") == 0);
2480 ASSERT (retval == strlen (result));
2483 { /* FLAG_ZERO with NaN. */
2486 my_snprintf (result, sizeof (result), "%050g %d", NaNd (), 33, 44, 55);
2487 ASSERT (strlen (result) == 50 + 3
2488 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2489 && strcmp (result + strlen (result) - 3, " 33") == 0);
2490 ASSERT (retval == strlen (result));
2496 my_snprintf (result, sizeof (result), "%.g %d", 1234.0, 33, 44, 55);
2497 ASSERT (strcmp (result, "1e+03 33") == 0
2498 || strcmp (result, "1e+003 33") == 0);
2499 ASSERT (retval == strlen (result));
2502 { /* Precision with no rounding. */
2505 my_snprintf (result, sizeof (result), "%.5g %d", 999.951, 33, 44, 55);
2506 ASSERT (strcmp (result, "999.95 33") == 0);
2507 ASSERT (retval == strlen (result));
2510 { /* Precision with rounding. */
2513 my_snprintf (result, sizeof (result), "%.5g %d", 999.996, 33, 44, 55);
2514 ASSERT (strcmp (result, "1000 33") == 0);
2515 ASSERT (retval == strlen (result));
2518 { /* A positive number. */
2521 my_snprintf (result, sizeof (result), "%Lg %d", 12.75L, 33, 44, 55);
2522 ASSERT (strcmp (result, "12.75 33") == 0);
2523 ASSERT (retval == strlen (result));
2526 { /* A larger positive number. */
2529 my_snprintf (result, sizeof (result), "%Lg %d", 1234567.0L, 33, 44, 55);
2530 ASSERT (strcmp (result, "1.23457e+06 33") == 0);
2531 ASSERT (retval == strlen (result));
2534 { /* Small and large positive numbers. */
2535 static struct { long double value; const char *string; } data[] =
2537 { 1.234321234321234e-37L, "1.23432e-37" },
2538 { 1.234321234321234e-36L, "1.23432e-36" },
2539 { 1.234321234321234e-35L, "1.23432e-35" },
2540 { 1.234321234321234e-34L, "1.23432e-34" },
2541 { 1.234321234321234e-33L, "1.23432e-33" },
2542 { 1.234321234321234e-32L, "1.23432e-32" },
2543 { 1.234321234321234e-31L, "1.23432e-31" },
2544 { 1.234321234321234e-30L, "1.23432e-30" },
2545 { 1.234321234321234e-29L, "1.23432e-29" },
2546 { 1.234321234321234e-28L, "1.23432e-28" },
2547 { 1.234321234321234e-27L, "1.23432e-27" },
2548 { 1.234321234321234e-26L, "1.23432e-26" },
2549 { 1.234321234321234e-25L, "1.23432e-25" },
2550 { 1.234321234321234e-24L, "1.23432e-24" },
2551 { 1.234321234321234e-23L, "1.23432e-23" },
2552 { 1.234321234321234e-22L, "1.23432e-22" },
2553 { 1.234321234321234e-21L, "1.23432e-21" },
2554 { 1.234321234321234e-20L, "1.23432e-20" },
2555 { 1.234321234321234e-19L, "1.23432e-19" },
2556 { 1.234321234321234e-18L, "1.23432e-18" },
2557 { 1.234321234321234e-17L, "1.23432e-17" },
2558 { 1.234321234321234e-16L, "1.23432e-16" },
2559 { 1.234321234321234e-15L, "1.23432e-15" },
2560 { 1.234321234321234e-14L, "1.23432e-14" },
2561 { 1.234321234321234e-13L, "1.23432e-13" },
2562 { 1.234321234321234e-12L, "1.23432e-12" },
2563 { 1.234321234321234e-11L, "1.23432e-11" },
2564 { 1.234321234321234e-10L, "1.23432e-10" },
2565 { 1.234321234321234e-9L, "1.23432e-09" },
2566 { 1.234321234321234e-8L, "1.23432e-08" },
2567 { 1.234321234321234e-7L, "1.23432e-07" },
2568 { 1.234321234321234e-6L, "1.23432e-06" },
2569 { 1.234321234321234e-5L, "1.23432e-05" },
2570 { 1.234321234321234e-4L, "0.000123432" },
2571 { 1.234321234321234e-3L, "0.00123432" },
2572 { 1.234321234321234e-2L, "0.0123432" },
2573 { 1.234321234321234e-1L, "0.123432" },
2574 { 1.234321234321234L, "1.23432" },
2575 { 1.234321234321234e1L, "12.3432" },
2576 { 1.234321234321234e2L, "123.432" },
2577 { 1.234321234321234e3L, "1234.32" },
2578 { 1.234321234321234e4L, "12343.2" },
2579 { 1.234321234321234e5L, "123432" },
2580 { 1.234321234321234e6L, "1.23432e+06" },
2581 { 1.234321234321234e7L, "1.23432e+07" },
2582 { 1.234321234321234e8L, "1.23432e+08" },
2583 { 1.234321234321234e9L, "1.23432e+09" },
2584 { 1.234321234321234e10L, "1.23432e+10" },
2585 { 1.234321234321234e11L, "1.23432e+11" },
2586 { 1.234321234321234e12L, "1.23432e+12" },
2587 { 1.234321234321234e13L, "1.23432e+13" },
2588 { 1.234321234321234e14L, "1.23432e+14" },
2589 { 1.234321234321234e15L, "1.23432e+15" },
2590 { 1.234321234321234e16L, "1.23432e+16" },
2591 { 1.234321234321234e17L, "1.23432e+17" },
2592 { 1.234321234321234e18L, "1.23432e+18" },
2593 { 1.234321234321234e19L, "1.23432e+19" },
2594 { 1.234321234321234e20L, "1.23432e+20" },
2595 { 1.234321234321234e21L, "1.23432e+21" },
2596 { 1.234321234321234e22L, "1.23432e+22" },
2597 { 1.234321234321234e23L, "1.23432e+23" },
2598 { 1.234321234321234e24L, "1.23432e+24" },
2599 { 1.234321234321234e25L, "1.23432e+25" },
2600 { 1.234321234321234e26L, "1.23432e+26" },
2601 { 1.234321234321234e27L, "1.23432e+27" },
2602 { 1.234321234321234e28L, "1.23432e+28" },
2603 { 1.234321234321234e29L, "1.23432e+29" },
2604 { 1.234321234321234e30L, "1.23432e+30" },
2605 { 1.234321234321234e31L, "1.23432e+31" },
2606 { 1.234321234321234e32L, "1.23432e+32" },
2607 { 1.234321234321234e33L, "1.23432e+33" },
2608 { 1.234321234321234e34L, "1.23432e+34" },
2609 { 1.234321234321234e35L, "1.23432e+35" },
2610 { 1.234321234321234e36L, "1.23432e+36" }
2613 for (k = 0; k < SIZEOF (data); k++)
2617 my_snprintf (result, sizeof (result), "%Lg", data[k].value);
2618 ASSERT (strcmp (result, data[k].string) == 0);
2619 ASSERT (retval == strlen (result));
2623 { /* A negative number. */
2626 my_snprintf (result, sizeof (result), "%Lg %d", -0.03125L, 33, 44, 55);
2627 ASSERT (strcmp (result, "-0.03125 33") == 0);
2628 ASSERT (retval == strlen (result));
2631 { /* Positive zero. */
2634 my_snprintf (result, sizeof (result), "%Lg %d", 0.0L, 33, 44, 55);
2635 ASSERT (strcmp (result, "0 33") == 0);
2636 ASSERT (retval == strlen (result));
2639 { /* Negative zero. */
2642 my_snprintf (result, sizeof (result), "%Lg %d", -0.0L, 33, 44, 55);
2643 if (have_minus_zero ())
2644 ASSERT (strcmp (result, "-0 33") == 0);
2645 ASSERT (retval == strlen (result));
2648 { /* Positive infinity. */
2651 my_snprintf (result, sizeof (result), "%Lg %d", 1.0L / 0.0L, 33, 44, 55);
2652 ASSERT (strcmp (result, "inf 33") == 0
2653 || strcmp (result, "infinity 33") == 0);
2654 ASSERT (retval == strlen (result));
2657 { /* Negative infinity. */
2660 my_snprintf (result, sizeof (result), "%Lg %d", -1.0L / 0.0L, 33, 44, 55);
2661 ASSERT (strcmp (result, "-inf 33") == 0
2662 || strcmp (result, "-infinity 33") == 0);
2663 ASSERT (retval == strlen (result));
2669 my_snprintf (result, sizeof (result), "%Lg %d", NaNl (), 33, 44, 55);
2670 ASSERT (strlen (result) >= 3 + 3
2671 && strisnan (result, 0, strlen (result) - 3, 0)
2672 && strcmp (result + strlen (result) - 3, " 33") == 0);
2673 ASSERT (retval == strlen (result));
2675 #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_))
2677 static union { unsigned int word[4]; long double value; } x =
2678 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2681 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2682 ASSERT (strlen (result) >= 3 + 3
2683 && strisnan (result, 0, strlen (result) - 3, 0)
2684 && strcmp (result + strlen (result) - 3, " 33") == 0);
2685 ASSERT (retval == strlen (result));
2688 /* Signalling NaN. */
2689 static union { unsigned int word[4]; long double value; } x =
2690 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2693 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2694 ASSERT (strlen (result) >= 3 + 3
2695 && strisnan (result, 0, strlen (result) - 3, 0)
2696 && strcmp (result + strlen (result) - 3, " 33") == 0);
2697 ASSERT (retval == strlen (result));
2699 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2700 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2701 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2702 Application Architecture.
2703 Table 5-2 "Floating-Point Register Encodings"
2704 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2707 static union { unsigned int word[4]; long double value; } x =
2708 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2711 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2712 ASSERT (strlen (result) >= 3 + 3
2713 && strisnan (result, 0, strlen (result) - 3, 0)
2714 && strcmp (result + strlen (result) - 3, " 33") == 0);
2715 ASSERT (retval == strlen (result));
2717 { /* Pseudo-Infinity. */
2718 static union { unsigned int word[4]; long double value; } x =
2719 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2722 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2723 ASSERT (strlen (result) >= 3 + 3
2724 && strisnan (result, 0, strlen (result) - 3, 0)
2725 && strcmp (result + strlen (result) - 3, " 33") == 0);
2726 ASSERT (retval == strlen (result));
2728 { /* Pseudo-Zero. */
2729 static union { unsigned int word[4]; long double value; } x =
2730 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2733 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2734 ASSERT (strlen (result) >= 3 + 3
2735 && strisnan (result, 0, strlen (result) - 3, 0)
2736 && strcmp (result + strlen (result) - 3, " 33") == 0);
2737 ASSERT (retval == strlen (result));
2739 { /* Unnormalized number. */
2740 static union { unsigned int word[4]; long double value; } x =
2741 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2744 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2745 ASSERT (strlen (result) >= 3 + 3
2746 && strisnan (result, 0, strlen (result) - 3, 0)
2747 && strcmp (result + strlen (result) - 3, " 33") == 0);
2748 ASSERT (retval == strlen (result));
2750 { /* Pseudo-Denormal. */
2751 static union { unsigned int word[4]; long double value; } x =
2752 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2755 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2756 ASSERT (strlen (result) >= 3 + 3
2757 && strisnan (result, 0, strlen (result) - 3, 0)
2758 && strcmp (result + strlen (result) - 3, " 33") == 0);
2759 ASSERT (retval == strlen (result));
2766 my_snprintf (result, sizeof (result), "%10Lg %d", 1.75L, 33, 44, 55);
2767 ASSERT (strcmp (result, " 1.75 33") == 0);
2768 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));
2779 { /* FLAG_SHOWSIGN. */
2782 my_snprintf (result, sizeof (result), "%+Lg %d", 1.75L, 33, 44, 55);
2783 ASSERT (strcmp (result, "+1.75 33") == 0);
2784 ASSERT (retval == strlen (result));
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, "1.75000 33") == 0);
2800 ASSERT (retval == strlen (result));
2806 my_snprintf (result, sizeof (result), "%#.Lg %d", 1.75L, 33, 44, 55);
2807 ASSERT (strcmp (result, "2. 33") == 0);
2808 ASSERT (retval == strlen (result));
2814 my_snprintf (result, sizeof (result), "%#.Lg %d", 9.75L, 33, 44, 55);
2815 ASSERT (strcmp (result, "1.e+01 33") == 0);
2816 ASSERT (retval == strlen (result));
2819 { /* FLAG_ZERO with finite number. */
2822 my_snprintf (result, sizeof (result), "%010Lg %d", 1234.0L, 33, 44, 55);
2823 ASSERT (strcmp (result, "0000001234 33") == 0);
2824 ASSERT (retval == strlen (result));
2827 { /* FLAG_ZERO with infinite number. */
2830 my_snprintf (result, sizeof (result), "%015Lg %d", -1.0L / 0.0L, 33, 44, 55);
2831 ASSERT (strcmp (result, " -inf 33") == 0
2832 || strcmp (result, " -infinity 33") == 0);
2833 ASSERT (retval == strlen (result));
2836 { /* FLAG_ZERO with NaN. */
2839 my_snprintf (result, sizeof (result), "%050Lg %d", NaNl (), 33, 44, 55);
2840 ASSERT (strlen (result) == 50 + 3
2841 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2842 && strcmp (result + strlen (result) - 3, " 33") == 0);
2843 ASSERT (retval == strlen (result));
2849 my_snprintf (result, sizeof (result), "%.Lg %d", 1234.0L, 33, 44, 55);
2850 ASSERT (strcmp (result, "1e+03 33") == 0);
2851 ASSERT (retval == strlen (result));
2854 { /* Precision with no rounding. */
2857 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.951L, 33, 44, 55);
2858 ASSERT (strcmp (result, "999.95 33") == 0);
2859 ASSERT (retval == strlen (result));
2862 { /* Precision with rounding. */
2865 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.996L, 33, 44, 55);
2866 ASSERT (strcmp (result, "1000 33") == 0);
2867 ASSERT (retval == strlen (result));
2870 /* Test the support of the %n format directive. */
2876 my_snprintf (result, sizeof (result), "%d %n", 123, &count, 33, 44, 55);
2877 ASSERT (strcmp (result, "123 ") == 0);
2878 ASSERT (retval == strlen (result));
2879 ASSERT (count == 4);
2882 /* Test the support of the POSIX/XSI format strings with positions. */
2887 my_snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
2888 ASSERT (strcmp (result, "55 33") == 0);
2889 ASSERT (retval == strlen (result));
2892 /* Test the support of the grouping flag. */
2897 my_snprintf (result, sizeof (result), "%'d %d", 1234567, 99);
2898 ASSERT (result[strlen (result) - 1] == '9');
2899 ASSERT (retval == strlen (result));
2902 /* Test the support of the left-adjust flag. */
2907 my_snprintf (result, sizeof (result), "a%*sc", -3, "b");
2908 ASSERT (strcmp (result, "ab c") == 0);
2909 ASSERT (retval == strlen (result));
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));
2928 /* Test the support of large precision. */
2933 my_snprintf (result, sizeof (result), "%.4000d %d", 1234567, 99);
2935 ASSERT (result != NULL);
2936 for (i = 0; i < 4000 - 7; i++)
2937 ASSERT (result[i] == '0');
2938 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2939 ASSERT (retval == strlen (result));
2945 my_snprintf (result, sizeof (result), "%.4000d %d", -1234567, 99);
2947 ASSERT (result != NULL);
2948 ASSERT (result[0] == '-');
2949 for (i = 0; i < 4000 - 7; i++)
2950 ASSERT (result[1 + i] == '0');
2951 ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
2952 ASSERT (retval == strlen (result));
2958 my_snprintf (result, sizeof (result), "%.4000u %d", 1234567, 99);
2960 ASSERT (result != NULL);
2961 for (i = 0; i < 4000 - 7; i++)
2962 ASSERT (result[i] == '0');
2963 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2964 ASSERT (retval == strlen (result));
2970 my_snprintf (result, sizeof (result), "%.4000o %d", 1234567, 99);
2972 ASSERT (result != NULL);
2973 for (i = 0; i < 4000 - 7; i++)
2974 ASSERT (result[i] == '0');
2975 ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
2976 ASSERT (retval == strlen (result));
2982 my_snprintf (result, sizeof (result), "%.4000x %d", 1234567, 99);
2984 ASSERT (result != NULL);
2985 for (i = 0; i < 4000 - 6; i++)
2986 ASSERT (result[i] == '0');
2987 ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
2988 ASSERT (retval == strlen (result));
2994 my_snprintf (result, sizeof (result), "%#.4000x %d", 1234567, 99);
2996 ASSERT (result != NULL);
2997 ASSERT (result[0] == '0');
2998 ASSERT (result[1] == 'x');
2999 for (i = 0; i < 4000 - 6; i++)
3000 ASSERT (result[2 + i] == '0');
3001 ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
3002 ASSERT (retval == strlen (result));
3011 for (i = 0; i < sizeof (input) - 1; i++)
3012 input[i] = 'a' + ((1000000 / (i + 1)) % 26);
3014 retval = my_snprintf (result, sizeof (result), "%.4000s %d", input, 99);
3015 ASSERT (result != NULL);
3016 ASSERT (memcmp (result, input, 4000) == 0);
3017 ASSERT (strcmp (result + 4000, " 99") == 0);
3018 ASSERT (retval == strlen (result));