1 /* Test of POSIX compatible vsnprintf() and snprintf() functions.
2 Copyright (C) 2007-2008 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
21 /* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0. */
25 static double plus_zero = 0.0;
26 double minus_zero = - plus_zero;
27 return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
30 /* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
31 So we use -zerod instead. */
34 /* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
35 So we use minus_zerol instead.
36 Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
37 platforms, such as when cross-compiling to PowerPC on MacOS X 10.5. */
38 #if defined __hpux || defined __sgi
39 long double minus_zerol = -LDBL_MIN * LDBL_MIN;
41 long double minus_zerol = -0.0L;
44 /* Representation of an 80-bit 'long double' as an initializer for a sequence
45 of 'unsigned int' words. */
46 #ifdef WORDS_BIGENDIAN
47 # define LDBL80_WORDS(exponent,manthi,mantlo) \
48 { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
49 ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \
50 (unsigned int) (mantlo) << 16 \
53 # define LDBL80_WORDS(exponent,manthi,mantlo) \
54 { mantlo, manthi, exponent }
58 strmatch (const char *pattern, const char *string)
60 if (strlen (pattern) != strlen (string))
62 for (; *pattern != '\0'; pattern++, string++)
63 if (*pattern != '*' && *string != *pattern)
68 /* Test whether string[start_index..end_index-1] is a valid textual
69 representation of NaN. */
71 strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
73 if (start_index < end_index)
75 if (string[start_index] == '-')
77 if (start_index + 3 <= end_index
78 && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
81 if (start_index == end_index
82 || (string[start_index] == '(' && string[end_index - 1] == ')'))
90 test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
95 /* Test return value convention. */
97 for (size = 0; size <= 8; size++)
101 memcpy (buf, "DEADBEEF", 8);
102 retval = my_snprintf (buf, size, "%d", 12345);
103 ASSERT (retval == 5);
108 ASSERT (memcmp (buf, "12345", size - 1) == 0);
109 ASSERT (buf[size - 1] == '\0');
111 ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
115 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
119 /* Test support of size specifiers as in C99. */
124 my_snprintf (result, sizeof (result), "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
125 ASSERT (strcmp (result, "12345671 33") == 0);
126 ASSERT (retval == strlen (result));
132 my_snprintf (result, sizeof (result), "%zu %d", (size_t) 12345672, 33, 44, 55);
133 ASSERT (strcmp (result, "12345672 33") == 0);
134 ASSERT (retval == strlen (result));
140 my_snprintf (result, sizeof (result), "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
141 ASSERT (strcmp (result, "12345673 33") == 0);
142 ASSERT (retval == strlen (result));
148 my_snprintf (result, sizeof (result), "%Lg %d", (long double) 1.5, 33, 44, 55);
149 ASSERT (strcmp (result, "1.5 33") == 0);
150 ASSERT (retval == strlen (result));
153 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
154 output of floating-point numbers. */
156 { /* A positive number. */
159 my_snprintf (result, sizeof (result), "%a %d", 3.1416015625, 33, 44, 55);
160 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
161 || strcmp (result, "0x3.244p+0 33") == 0
162 || strcmp (result, "0x6.488p-1 33") == 0
163 || strcmp (result, "0xc.91p-2 33") == 0);
164 ASSERT (retval == strlen (result));
167 { /* A negative number. */
170 my_snprintf (result, sizeof (result), "%A %d", -3.1416015625, 33, 44, 55);
171 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
172 || strcmp (result, "-0X3.244P+0 33") == 0
173 || strcmp (result, "-0X6.488P-1 33") == 0
174 || strcmp (result, "-0XC.91P-2 33") == 0);
175 ASSERT (retval == strlen (result));
178 { /* Positive zero. */
181 my_snprintf (result, sizeof (result), "%a %d", 0.0, 33, 44, 55);
182 ASSERT (strcmp (result, "0x0p+0 33") == 0);
183 ASSERT (retval == strlen (result));
186 { /* Negative zero. */
189 my_snprintf (result, sizeof (result), "%a %d", -zerod, 33, 44, 55);
190 if (have_minus_zero ())
191 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
192 ASSERT (retval == strlen (result));
195 { /* Positive infinity. */
198 my_snprintf (result, sizeof (result), "%a %d", 1.0 / 0.0, 33, 44, 55);
199 ASSERT (strcmp (result, "inf 33") == 0);
200 ASSERT (retval == strlen (result));
203 { /* Negative infinity. */
206 my_snprintf (result, sizeof (result), "%a %d", -1.0 / 0.0, 33, 44, 55);
207 ASSERT (strcmp (result, "-inf 33") == 0);
208 ASSERT (retval == strlen (result));
214 my_snprintf (result, sizeof (result), "%a %d", NaNd (), 33, 44, 55);
215 ASSERT (strlen (result) >= 3 + 3
216 && strisnan (result, 0, strlen (result) - 3, 0)
217 && strcmp (result + strlen (result) - 3, " 33") == 0);
218 ASSERT (retval == strlen (result));
221 { /* Rounding near the decimal point. */
224 my_snprintf (result, sizeof (result), "%.0a %d", 1.5, 33, 44, 55);
225 ASSERT (strcmp (result, "0x2p+0 33") == 0
226 || strcmp (result, "0x3p-1 33") == 0
227 || strcmp (result, "0x6p-2 33") == 0
228 || strcmp (result, "0xcp-3 33") == 0);
229 ASSERT (retval == strlen (result));
232 { /* Rounding with precision 0. */
235 my_snprintf (result, sizeof (result), "%.0a %d", 1.51, 33, 44, 55);
236 ASSERT (strcmp (result, "0x2p+0 33") == 0
237 || strcmp (result, "0x3p-1 33") == 0
238 || strcmp (result, "0x6p-2 33") == 0
239 || strcmp (result, "0xcp-3 33") == 0);
240 ASSERT (retval == strlen (result));
243 { /* Rounding with precision 1. */
246 my_snprintf (result, sizeof (result), "%.1a %d", 1.51, 33, 44, 55);
247 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
248 || strcmp (result, "0x3.0p-1 33") == 0
249 || strcmp (result, "0x6.1p-2 33") == 0
250 || strcmp (result, "0xc.1p-3 33") == 0);
251 ASSERT (retval == strlen (result));
254 { /* Rounding with precision 2. */
257 my_snprintf (result, sizeof (result), "%.2a %d", 1.51, 33, 44, 55);
258 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
259 || strcmp (result, "0x3.05p-1 33") == 0
260 || strcmp (result, "0x6.0ap-2 33") == 0
261 || strcmp (result, "0xc.14p-3 33") == 0);
262 ASSERT (retval == strlen (result));
265 { /* Rounding with precision 3. */
268 my_snprintf (result, sizeof (result), "%.3a %d", 1.51, 33, 44, 55);
269 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
270 || strcmp (result, "0x3.052p-1 33") == 0
271 || strcmp (result, "0x6.0a4p-2 33") == 0
272 || strcmp (result, "0xc.148p-3 33") == 0);
273 ASSERT (retval == strlen (result));
276 { /* Rounding can turn a ...FFF into a ...000. */
279 my_snprintf (result, sizeof (result), "%.3a %d", 1.49999, 33, 44, 55);
280 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
281 || strcmp (result, "0x3.000p-1 33") == 0
282 || strcmp (result, "0x6.000p-2 33") == 0
283 || strcmp (result, "0xc.000p-3 33") == 0);
284 ASSERT (retval == strlen (result));
287 { /* Rounding can turn a ...FFF into a ...000.
288 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
291 my_snprintf (result, sizeof (result), "%.1a %d", 1.999, 33, 44, 55);
292 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
293 || strcmp (result, "0x2.0p+0 33") == 0
294 || strcmp (result, "0x4.0p-1 33") == 0
295 || strcmp (result, "0x8.0p-2 33") == 0);
296 ASSERT (retval == strlen (result));
302 my_snprintf (result, sizeof (result), "%10a %d", 1.75, 33, 44, 55);
303 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
304 || strcmp (result, " 0x3.8p-1 33") == 0
305 || strcmp (result, " 0x7p-2 33") == 0
306 || strcmp (result, " 0xep-3 33") == 0);
307 ASSERT (retval == strlen (result));
310 { /* Small precision. */
313 my_snprintf (result, sizeof (result), "%.10a %d", 1.75, 33, 44, 55);
314 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
315 || strcmp (result, "0x3.8000000000p-1 33") == 0
316 || strcmp (result, "0x7.0000000000p-2 33") == 0
317 || strcmp (result, "0xe.0000000000p-3 33") == 0);
318 ASSERT (retval == strlen (result));
321 { /* Large precision. */
324 my_snprintf (result, sizeof (result), "%.50a %d", 1.75, 33, 44, 55);
325 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
326 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
327 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
328 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
329 ASSERT (retval == strlen (result));
335 my_snprintf (result, sizeof (result), "%-10a %d", 1.75, 33, 44, 55);
336 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
337 || strcmp (result, "0x3.8p-1 33") == 0
338 || strcmp (result, "0x7p-2 33") == 0
339 || strcmp (result, "0xep-3 33") == 0);
340 ASSERT (retval == strlen (result));
343 { /* FLAG_SHOWSIGN. */
346 my_snprintf (result, sizeof (result), "%+a %d", 1.75, 33, 44, 55);
347 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
348 || strcmp (result, "+0x3.8p-1 33") == 0
349 || strcmp (result, "+0x7p-2 33") == 0
350 || strcmp (result, "+0xep-3 33") == 0);
351 ASSERT (retval == strlen (result));
357 my_snprintf (result, sizeof (result), "% a %d", 1.75, 33, 44, 55);
358 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
359 || strcmp (result, " 0x3.8p-1 33") == 0
360 || strcmp (result, " 0x7p-2 33") == 0
361 || strcmp (result, " 0xep-3 33") == 0);
362 ASSERT (retval == strlen (result));
368 my_snprintf (result, sizeof (result), "%#a %d", 1.75, 33, 44, 55);
369 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
370 || strcmp (result, "0x3.8p-1 33") == 0
371 || strcmp (result, "0x7.p-2 33") == 0
372 || strcmp (result, "0xe.p-3 33") == 0);
373 ASSERT (retval == strlen (result));
379 my_snprintf (result, sizeof (result), "%#a %d", 1.0, 33, 44, 55);
380 ASSERT (strcmp (result, "0x1.p+0 33") == 0
381 || strcmp (result, "0x2.p-1 33") == 0
382 || strcmp (result, "0x4.p-2 33") == 0
383 || strcmp (result, "0x8.p-3 33") == 0);
384 ASSERT (retval == strlen (result));
387 { /* FLAG_ZERO with finite number. */
390 my_snprintf (result, sizeof (result), "%010a %d", 1.75, 33, 44, 55);
391 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
392 || strcmp (result, "0x003.8p-1 33") == 0
393 || strcmp (result, "0x00007p-2 33") == 0
394 || strcmp (result, "0x0000ep-3 33") == 0);
395 ASSERT (retval == strlen (result));
398 { /* FLAG_ZERO with infinite number. */
401 my_snprintf (result, sizeof (result), "%010a %d", 1.0 / 0.0, 33, 44, 55);
402 /* "0000000inf 33" is not a valid result; see
403 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
404 ASSERT (strcmp (result, " inf 33") == 0);
405 ASSERT (retval == strlen (result));
408 { /* FLAG_ZERO with NaN. */
411 my_snprintf (result, sizeof (result), "%050a %d", NaNd (), 33, 44, 55);
412 /* "0000000nan 33" is not a valid result; see
413 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
414 ASSERT (strlen (result) == 50 + 3
415 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
416 && strcmp (result + strlen (result) - 3, " 33") == 0);
417 ASSERT (retval == strlen (result));
420 { /* A positive number. */
423 my_snprintf (result, sizeof (result), "%La %d", 3.1416015625L, 33, 44, 55);
424 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
425 || strcmp (result, "0x3.244p+0 33") == 0
426 || strcmp (result, "0x6.488p-1 33") == 0
427 || strcmp (result, "0xc.91p-2 33") == 0);
428 ASSERT (retval == strlen (result));
431 { /* A negative number. */
434 my_snprintf (result, sizeof (result), "%LA %d", -3.1416015625L, 33, 44, 55);
435 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
436 || strcmp (result, "-0X3.244P+0 33") == 0
437 || strcmp (result, "-0X6.488P-1 33") == 0
438 || strcmp (result, "-0XC.91P-2 33") == 0);
439 ASSERT (retval == strlen (result));
442 { /* Positive zero. */
445 my_snprintf (result, sizeof (result), "%La %d", 0.0L, 33, 44, 55);
446 ASSERT (strcmp (result, "0x0p+0 33") == 0);
447 ASSERT (retval == strlen (result));
450 { /* Negative zero. */
453 my_snprintf (result, sizeof (result), "%La %d", minus_zerol, 33, 44, 55);
454 if (have_minus_zero ())
455 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
456 ASSERT (retval == strlen (result));
459 { /* Positive infinity. */
462 my_snprintf (result, sizeof (result), "%La %d", 1.0L / 0.0L, 33, 44, 55);
463 ASSERT (strcmp (result, "inf 33") == 0);
464 ASSERT (retval == strlen (result));
467 { /* Negative infinity. */
470 my_snprintf (result, sizeof (result), "%La %d", -1.0L / 0.0L, 33, 44, 55);
471 ASSERT (strcmp (result, "-inf 33") == 0);
472 ASSERT (retval == strlen (result));
478 my_snprintf (result, sizeof (result), "%La %d", NaNl (), 33, 44, 55);
479 ASSERT (strlen (result) >= 3 + 3
480 && strisnan (result, 0, strlen (result) - 3, 0)
481 && strcmp (result + strlen (result) - 3, " 33") == 0);
482 ASSERT (retval == strlen (result));
484 #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_))
486 static union { unsigned int word[4]; long double value; } x =
487 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
490 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
491 ASSERT (strlen (result) >= 3 + 3
492 && strisnan (result, 0, strlen (result) - 3, 0)
493 && strcmp (result + strlen (result) - 3, " 33") == 0);
494 ASSERT (retval == strlen (result));
497 /* Signalling NaN. */
498 static union { unsigned int word[4]; long double value; } x =
499 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
502 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
503 ASSERT (strlen (result) >= 3 + 3
504 && strisnan (result, 0, strlen (result) - 3, 0)
505 && strcmp (result + strlen (result) - 3, " 33") == 0);
506 ASSERT (retval == strlen (result));
508 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
509 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
510 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
511 Application Architecture.
512 Table 5-2 "Floating-Point Register Encodings"
513 Figure 5-6 "Memory to Floating-Point Register Data Translation"
516 static union { unsigned int word[4]; long double value; } x =
517 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
520 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
521 ASSERT (strlen (result) >= 3 + 3
522 && strisnan (result, 0, strlen (result) - 3, 0)
523 && strcmp (result + strlen (result) - 3, " 33") == 0);
524 ASSERT (retval == strlen (result));
526 { /* Pseudo-Infinity. */
527 static union { unsigned int word[4]; long double value; } x =
528 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
531 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
532 ASSERT (strlen (result) >= 3 + 3
533 && strisnan (result, 0, strlen (result) - 3, 0)
534 && strcmp (result + strlen (result) - 3, " 33") == 0);
535 ASSERT (retval == strlen (result));
538 static union { unsigned int word[4]; long double value; } x =
539 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
542 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
543 ASSERT (strlen (result) >= 3 + 3
544 && strisnan (result, 0, strlen (result) - 3, 0)
545 && strcmp (result + strlen (result) - 3, " 33") == 0);
546 ASSERT (retval == strlen (result));
548 { /* Unnormalized number. */
549 static union { unsigned int word[4]; long double value; } x =
550 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
553 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
554 ASSERT (strlen (result) >= 3 + 3
555 && strisnan (result, 0, strlen (result) - 3, 0)
556 && strcmp (result + strlen (result) - 3, " 33") == 0);
557 ASSERT (retval == strlen (result));
559 { /* Pseudo-Denormal. */
560 static union { unsigned int word[4]; long double value; } x =
561 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
564 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
565 ASSERT (strlen (result) >= 3 + 3
566 && strisnan (result, 0, strlen (result) - 3, 0)
567 && strcmp (result + strlen (result) - 3, " 33") == 0);
568 ASSERT (retval == strlen (result));
572 { /* Rounding near the decimal point. */
575 my_snprintf (result, sizeof (result), "%.0La %d", 1.5L, 33, 44, 55);
576 ASSERT (strcmp (result, "0x2p+0 33") == 0
577 || strcmp (result, "0x3p-1 33") == 0
578 || strcmp (result, "0x6p-2 33") == 0
579 || strcmp (result, "0xcp-3 33") == 0);
580 ASSERT (retval == strlen (result));
583 { /* Rounding with precision 0. */
586 my_snprintf (result, sizeof (result), "%.0La %d", 1.51L, 33, 44, 55);
587 ASSERT (strcmp (result, "0x2p+0 33") == 0
588 || strcmp (result, "0x3p-1 33") == 0
589 || strcmp (result, "0x6p-2 33") == 0
590 || strcmp (result, "0xcp-3 33") == 0);
591 ASSERT (retval == strlen (result));
594 { /* Rounding with precision 1. */
597 my_snprintf (result, sizeof (result), "%.1La %d", 1.51L, 33, 44, 55);
598 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
599 || strcmp (result, "0x3.0p-1 33") == 0
600 || strcmp (result, "0x6.1p-2 33") == 0
601 || strcmp (result, "0xc.1p-3 33") == 0);
602 ASSERT (retval == strlen (result));
605 { /* Rounding with precision 2. */
608 my_snprintf (result, sizeof (result), "%.2La %d", 1.51L, 33, 44, 55);
609 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
610 || strcmp (result, "0x3.05p-1 33") == 0
611 || strcmp (result, "0x6.0ap-2 33") == 0
612 || strcmp (result, "0xc.14p-3 33") == 0);
613 ASSERT (retval == strlen (result));
616 { /* Rounding with precision 3. */
619 my_snprintf (result, sizeof (result), "%.3La %d", 1.51L, 33, 44, 55);
620 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
621 || strcmp (result, "0x3.052p-1 33") == 0
622 || strcmp (result, "0x6.0a4p-2 33") == 0
623 || strcmp (result, "0xc.148p-3 33") == 0);
624 ASSERT (retval == strlen (result));
627 { /* Rounding can turn a ...FFF into a ...000. */
630 my_snprintf (result, sizeof (result), "%.3La %d", 1.49999L, 33, 44, 55);
631 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
632 || strcmp (result, "0x3.000p-1 33") == 0
633 || strcmp (result, "0x6.000p-2 33") == 0
634 || strcmp (result, "0xc.000p-3 33") == 0);
635 ASSERT (retval == strlen (result));
638 { /* Rounding can turn a ...FFF into a ...000.
639 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
640 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
643 my_snprintf (result, sizeof (result), "%.1La %d", 1.999L, 33, 44, 55);
644 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
645 || strcmp (result, "0x2.0p+0 33") == 0
646 || strcmp (result, "0x4.0p-1 33") == 0
647 || strcmp (result, "0x8.0p-2 33") == 0);
648 ASSERT (retval == strlen (result));
654 my_snprintf (result, sizeof (result), "%10La %d", 1.75L, 33, 44, 55);
655 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
656 || strcmp (result, " 0x3.8p-1 33") == 0
657 || strcmp (result, " 0x7p-2 33") == 0
658 || strcmp (result, " 0xep-3 33") == 0);
659 ASSERT (retval == strlen (result));
662 { /* Small precision. */
665 my_snprintf (result, sizeof (result), "%.10La %d", 1.75L, 33, 44, 55);
666 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
667 || strcmp (result, "0x3.8000000000p-1 33") == 0
668 || strcmp (result, "0x7.0000000000p-2 33") == 0
669 || strcmp (result, "0xe.0000000000p-3 33") == 0);
670 ASSERT (retval == strlen (result));
673 { /* Large precision. */
676 my_snprintf (result, sizeof (result), "%.50La %d", 1.75L, 33, 44, 55);
677 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
678 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
679 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
680 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
681 ASSERT (retval == strlen (result));
687 my_snprintf (result, sizeof (result), "%-10La %d", 1.75L, 33, 44, 55);
688 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
689 || strcmp (result, "0x3.8p-1 33") == 0
690 || strcmp (result, "0x7p-2 33") == 0
691 || strcmp (result, "0xep-3 33") == 0);
692 ASSERT (retval == strlen (result));
695 { /* FLAG_SHOWSIGN. */
698 my_snprintf (result, sizeof (result), "%+La %d", 1.75L, 33, 44, 55);
699 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
700 || strcmp (result, "+0x3.8p-1 33") == 0
701 || strcmp (result, "+0x7p-2 33") == 0
702 || strcmp (result, "+0xep-3 33") == 0);
703 ASSERT (retval == strlen (result));
709 my_snprintf (result, sizeof (result), "% La %d", 1.75L, 33, 44, 55);
710 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
711 || strcmp (result, " 0x3.8p-1 33") == 0
712 || strcmp (result, " 0x7p-2 33") == 0
713 || strcmp (result, " 0xep-3 33") == 0);
714 ASSERT (retval == strlen (result));
720 my_snprintf (result, sizeof (result), "%#La %d", 1.75L, 33, 44, 55);
721 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
722 || strcmp (result, "0x3.8p-1 33") == 0
723 || strcmp (result, "0x7.p-2 33") == 0
724 || strcmp (result, "0xe.p-3 33") == 0);
725 ASSERT (retval == strlen (result));
731 my_snprintf (result, sizeof (result), "%#La %d", 1.0L, 33, 44, 55);
732 ASSERT (strcmp (result, "0x1.p+0 33") == 0
733 || strcmp (result, "0x2.p-1 33") == 0
734 || strcmp (result, "0x4.p-2 33") == 0
735 || strcmp (result, "0x8.p-3 33") == 0);
736 ASSERT (retval == strlen (result));
739 { /* FLAG_ZERO with finite number. */
742 my_snprintf (result, sizeof (result), "%010La %d", 1.75L, 33, 44, 55);
743 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
744 || strcmp (result, "0x003.8p-1 33") == 0
745 || strcmp (result, "0x00007p-2 33") == 0
746 || strcmp (result, "0x0000ep-3 33") == 0);
747 ASSERT (retval == strlen (result));
750 { /* FLAG_ZERO with infinite number. */
753 my_snprintf (result, sizeof (result), "%010La %d", 1.0L / 0.0L, 33, 44, 55);
754 /* "0000000inf 33" is not a valid result; see
755 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
756 ASSERT (strcmp (result, " inf 33") == 0);
757 ASSERT (retval == strlen (result));
760 { /* FLAG_ZERO with NaN. */
763 my_snprintf (result, sizeof (result), "%050La %d", NaNl (), 33, 44, 55);
764 /* "0000000nan 33" is not a valid result; see
765 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
766 ASSERT (strlen (result) == 50 + 3
767 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
768 && strcmp (result + strlen (result) - 3, " 33") == 0);
769 ASSERT (retval == strlen (result));
772 /* Test the support of the %f format directive. */
774 { /* A positive number. */
777 my_snprintf (result, sizeof (result), "%f %d", 12.75, 33, 44, 55);
778 ASSERT (strcmp (result, "12.750000 33") == 0);
779 ASSERT (retval == strlen (result));
782 { /* A larger positive number. */
785 my_snprintf (result, sizeof (result), "%f %d", 1234567.0, 33, 44, 55);
786 ASSERT (strcmp (result, "1234567.000000 33") == 0);
787 ASSERT (retval == strlen (result));
790 { /* Small and large positive numbers. */
791 static struct { double value; const char *string; } data[] =
793 { 1.234321234321234e-37, "0.000000" },
794 { 1.234321234321234e-36, "0.000000" },
795 { 1.234321234321234e-35, "0.000000" },
796 { 1.234321234321234e-34, "0.000000" },
797 { 1.234321234321234e-33, "0.000000" },
798 { 1.234321234321234e-32, "0.000000" },
799 { 1.234321234321234e-31, "0.000000" },
800 { 1.234321234321234e-30, "0.000000" },
801 { 1.234321234321234e-29, "0.000000" },
802 { 1.234321234321234e-28, "0.000000" },
803 { 1.234321234321234e-27, "0.000000" },
804 { 1.234321234321234e-26, "0.000000" },
805 { 1.234321234321234e-25, "0.000000" },
806 { 1.234321234321234e-24, "0.000000" },
807 { 1.234321234321234e-23, "0.000000" },
808 { 1.234321234321234e-22, "0.000000" },
809 { 1.234321234321234e-21, "0.000000" },
810 { 1.234321234321234e-20, "0.000000" },
811 { 1.234321234321234e-19, "0.000000" },
812 { 1.234321234321234e-18, "0.000000" },
813 { 1.234321234321234e-17, "0.000000" },
814 { 1.234321234321234e-16, "0.000000" },
815 { 1.234321234321234e-15, "0.000000" },
816 { 1.234321234321234e-14, "0.000000" },
817 { 1.234321234321234e-13, "0.000000" },
818 { 1.234321234321234e-12, "0.000000" },
819 { 1.234321234321234e-11, "0.000000" },
820 { 1.234321234321234e-10, "0.000000" },
821 { 1.234321234321234e-9, "0.000000" },
822 { 1.234321234321234e-8, "0.000000" },
823 { 1.234321234321234e-7, "0.000000" },
824 { 1.234321234321234e-6, "0.000001" },
825 { 1.234321234321234e-5, "0.000012" },
826 { 1.234321234321234e-4, "0.000123" },
827 { 1.234321234321234e-3, "0.001234" },
828 { 1.234321234321234e-2, "0.012343" },
829 { 1.234321234321234e-1, "0.123432" },
830 { 1.234321234321234, "1.234321" },
831 { 1.234321234321234e1, "12.343212" },
832 { 1.234321234321234e2, "123.432123" },
833 { 1.234321234321234e3, "1234.321234" },
834 { 1.234321234321234e4, "12343.212343" },
835 { 1.234321234321234e5, "123432.123432" },
836 { 1.234321234321234e6, "1234321.234321" },
837 { 1.234321234321234e7, "12343212.343212" },
838 { 1.234321234321234e8, "123432123.432123" },
839 { 1.234321234321234e9, "1234321234.321234" },
840 { 1.234321234321234e10, "12343212343.2123**" },
841 { 1.234321234321234e11, "123432123432.123***" },
842 { 1.234321234321234e12, "1234321234321.23****" },
843 { 1.234321234321234e13, "12343212343212.3*****" },
844 { 1.234321234321234e14, "123432123432123.******" },
845 { 1.234321234321234e15, "1234321234321234.000000" },
846 { 1.234321234321234e16, "123432123432123**.000000" },
847 { 1.234321234321234e17, "123432123432123***.000000" },
848 { 1.234321234321234e18, "123432123432123****.000000" },
849 { 1.234321234321234e19, "123432123432123*****.000000" },
850 { 1.234321234321234e20, "123432123432123******.000000" },
851 { 1.234321234321234e21, "123432123432123*******.000000" },
852 { 1.234321234321234e22, "123432123432123********.000000" },
853 { 1.234321234321234e23, "123432123432123*********.000000" },
854 { 1.234321234321234e24, "123432123432123**********.000000" },
855 { 1.234321234321234e25, "123432123432123***********.000000" },
856 { 1.234321234321234e26, "123432123432123************.000000" },
857 { 1.234321234321234e27, "123432123432123*************.000000" },
858 { 1.234321234321234e28, "123432123432123**************.000000" },
859 { 1.234321234321234e29, "123432123432123***************.000000" },
860 { 1.234321234321234e30, "123432123432123****************.000000" },
861 { 1.234321234321234e31, "123432123432123*****************.000000" },
862 { 1.234321234321234e32, "123432123432123******************.000000" },
863 { 1.234321234321234e33, "123432123432123*******************.000000" },
864 { 1.234321234321234e34, "123432123432123********************.000000" },
865 { 1.234321234321234e35, "123432123432123*********************.000000" },
866 { 1.234321234321234e36, "123432123432123**********************.000000" }
869 for (k = 0; k < SIZEOF (data); k++)
873 my_snprintf (result, sizeof (result), "%f", data[k].value);
874 ASSERT (strmatch (data[k].string, result));
875 ASSERT (retval == strlen (result));
879 { /* A negative number. */
882 my_snprintf (result, sizeof (result), "%f %d", -0.03125, 33, 44, 55);
883 ASSERT (strcmp (result, "-0.031250 33") == 0);
884 ASSERT (retval == strlen (result));
887 { /* Positive zero. */
890 my_snprintf (result, sizeof (result), "%f %d", 0.0, 33, 44, 55);
891 ASSERT (strcmp (result, "0.000000 33") == 0);
892 ASSERT (retval == strlen (result));
895 { /* Negative zero. */
898 my_snprintf (result, sizeof (result), "%f %d", -zerod, 33, 44, 55);
899 if (have_minus_zero ())
900 ASSERT (strcmp (result, "-0.000000 33") == 0);
901 ASSERT (retval == strlen (result));
904 { /* Positive infinity. */
907 my_snprintf (result, sizeof (result), "%f %d", 1.0 / 0.0, 33, 44, 55);
908 ASSERT (strcmp (result, "inf 33") == 0
909 || strcmp (result, "infinity 33") == 0);
910 ASSERT (retval == strlen (result));
913 { /* Negative infinity. */
916 my_snprintf (result, sizeof (result), "%f %d", -1.0 / 0.0, 33, 44, 55);
917 ASSERT (strcmp (result, "-inf 33") == 0
918 || strcmp (result, "-infinity 33") == 0);
919 ASSERT (retval == strlen (result));
925 my_snprintf (result, sizeof (result), "%f %d", NaNd (), 33, 44, 55);
926 ASSERT (strlen (result) >= 3 + 3
927 && strisnan (result, 0, strlen (result) - 3, 0)
928 && strcmp (result + strlen (result) - 3, " 33") == 0);
929 ASSERT (retval == strlen (result));
935 my_snprintf (result, sizeof (result), "%10f %d", 1.75, 33, 44, 55);
936 ASSERT (strcmp (result, " 1.750000 33") == 0);
937 ASSERT (retval == strlen (result));
943 my_snprintf (result, sizeof (result), "%-10f %d", 1.75, 33, 44, 55);
944 ASSERT (strcmp (result, "1.750000 33") == 0);
945 ASSERT (retval == strlen (result));
948 { /* FLAG_SHOWSIGN. */
951 my_snprintf (result, sizeof (result), "%+f %d", 1.75, 33, 44, 55);
952 ASSERT (strcmp (result, "+1.750000 33") == 0);
953 ASSERT (retval == strlen (result));
959 my_snprintf (result, sizeof (result), "% f %d", 1.75, 33, 44, 55);
960 ASSERT (strcmp (result, " 1.750000 33") == 0);
961 ASSERT (retval == strlen (result));
967 my_snprintf (result, sizeof (result), "%#f %d", 1.75, 33, 44, 55);
968 ASSERT (strcmp (result, "1.750000 33") == 0);
969 ASSERT (retval == strlen (result));
975 my_snprintf (result, sizeof (result), "%#.f %d", 1.75, 33, 44, 55);
976 ASSERT (strcmp (result, "2. 33") == 0);
977 ASSERT (retval == strlen (result));
980 { /* FLAG_ZERO with finite number. */
983 my_snprintf (result, sizeof (result), "%015f %d", 1234.0, 33, 44, 55);
984 ASSERT (strcmp (result, "00001234.000000 33") == 0);
985 ASSERT (retval == strlen (result));
988 { /* FLAG_ZERO with infinite number. */
991 my_snprintf (result, sizeof (result), "%015f %d", -1.0 / 0.0, 33, 44, 55);
992 ASSERT (strcmp (result, " -inf 33") == 0
993 || strcmp (result, " -infinity 33") == 0);
994 ASSERT (retval == strlen (result));
997 { /* FLAG_ZERO with NaN. */
1000 my_snprintf (result, sizeof (result), "%050f %d", NaNd (), 33, 44, 55);
1001 ASSERT (strlen (result) == 50 + 3
1002 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1003 && strcmp (result + strlen (result) - 3, " 33") == 0);
1004 ASSERT (retval == strlen (result));
1010 my_snprintf (result, sizeof (result), "%.f %d", 1234.0, 33, 44, 55);
1011 ASSERT (strcmp (result, "1234 33") == 0);
1012 ASSERT (retval == strlen (result));
1015 { /* Precision with no rounding. */
1018 my_snprintf (result, sizeof (result), "%.2f %d", 999.951, 33, 44, 55);
1019 ASSERT (strcmp (result, "999.95 33") == 0);
1020 ASSERT (retval == strlen (result));
1023 { /* Precision with rounding. */
1026 my_snprintf (result, sizeof (result), "%.2f %d", 999.996, 33, 44, 55);
1027 ASSERT (strcmp (result, "1000.00 33") == 0);
1028 ASSERT (retval == strlen (result));
1031 { /* A positive number. */
1034 my_snprintf (result, sizeof (result), "%Lf %d", 12.75L, 33, 44, 55);
1035 ASSERT (strcmp (result, "12.750000 33") == 0);
1036 ASSERT (retval == strlen (result));
1039 { /* A larger positive number. */
1042 my_snprintf (result, sizeof (result), "%Lf %d", 1234567.0L, 33, 44, 55);
1043 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1044 ASSERT (retval == strlen (result));
1047 { /* Small and large positive numbers. */
1048 static struct { long double value; const char *string; } data[] =
1050 { 1.234321234321234e-37L, "0.000000" },
1051 { 1.234321234321234e-36L, "0.000000" },
1052 { 1.234321234321234e-35L, "0.000000" },
1053 { 1.234321234321234e-34L, "0.000000" },
1054 { 1.234321234321234e-33L, "0.000000" },
1055 { 1.234321234321234e-32L, "0.000000" },
1056 { 1.234321234321234e-31L, "0.000000" },
1057 { 1.234321234321234e-30L, "0.000000" },
1058 { 1.234321234321234e-29L, "0.000000" },
1059 { 1.234321234321234e-28L, "0.000000" },
1060 { 1.234321234321234e-27L, "0.000000" },
1061 { 1.234321234321234e-26L, "0.000000" },
1062 { 1.234321234321234e-25L, "0.000000" },
1063 { 1.234321234321234e-24L, "0.000000" },
1064 { 1.234321234321234e-23L, "0.000000" },
1065 { 1.234321234321234e-22L, "0.000000" },
1066 { 1.234321234321234e-21L, "0.000000" },
1067 { 1.234321234321234e-20L, "0.000000" },
1068 { 1.234321234321234e-19L, "0.000000" },
1069 { 1.234321234321234e-18L, "0.000000" },
1070 { 1.234321234321234e-17L, "0.000000" },
1071 { 1.234321234321234e-16L, "0.000000" },
1072 { 1.234321234321234e-15L, "0.000000" },
1073 { 1.234321234321234e-14L, "0.000000" },
1074 { 1.234321234321234e-13L, "0.000000" },
1075 { 1.234321234321234e-12L, "0.000000" },
1076 { 1.234321234321234e-11L, "0.000000" },
1077 { 1.234321234321234e-10L, "0.000000" },
1078 { 1.234321234321234e-9L, "0.000000" },
1079 { 1.234321234321234e-8L, "0.000000" },
1080 { 1.234321234321234e-7L, "0.000000" },
1081 { 1.234321234321234e-6L, "0.000001" },
1082 { 1.234321234321234e-5L, "0.000012" },
1083 { 1.234321234321234e-4L, "0.000123" },
1084 { 1.234321234321234e-3L, "0.001234" },
1085 { 1.234321234321234e-2L, "0.012343" },
1086 { 1.234321234321234e-1L, "0.123432" },
1087 { 1.234321234321234L, "1.234321" },
1088 { 1.234321234321234e1L, "12.343212" },
1089 { 1.234321234321234e2L, "123.432123" },
1090 { 1.234321234321234e3L, "1234.321234" },
1091 { 1.234321234321234e4L, "12343.212343" },
1092 { 1.234321234321234e5L, "123432.123432" },
1093 { 1.234321234321234e6L, "1234321.234321" },
1094 { 1.234321234321234e7L, "12343212.343212" },
1095 { 1.234321234321234e8L, "123432123.432123" },
1096 { 1.234321234321234e9L, "1234321234.321234" },
1097 { 1.234321234321234e10L, "12343212343.2123**" },
1098 { 1.234321234321234e11L, "123432123432.123***" },
1099 { 1.234321234321234e12L, "1234321234321.23****" },
1100 { 1.234321234321234e13L, "12343212343212.3*****" },
1101 { 1.234321234321234e14L, "123432123432123.******" },
1102 { 1.234321234321234e15L, "1234321234321234.000000" },
1103 { 1.234321234321234e16L, "123432123432123**.000000" },
1104 { 1.234321234321234e17L, "123432123432123***.000000" },
1105 { 1.234321234321234e18L, "123432123432123****.000000" },
1106 { 1.234321234321234e19L, "123432123432123*****.000000" },
1107 { 1.234321234321234e20L, "123432123432123******.000000" },
1108 { 1.234321234321234e21L, "123432123432123*******.000000" },
1109 { 1.234321234321234e22L, "123432123432123********.000000" },
1110 { 1.234321234321234e23L, "123432123432123*********.000000" },
1111 { 1.234321234321234e24L, "123432123432123**********.000000" },
1112 { 1.234321234321234e25L, "123432123432123***********.000000" },
1113 { 1.234321234321234e26L, "123432123432123************.000000" },
1114 { 1.234321234321234e27L, "123432123432123*************.000000" },
1115 { 1.234321234321234e28L, "123432123432123**************.000000" },
1116 { 1.234321234321234e29L, "123432123432123***************.000000" },
1117 { 1.234321234321234e30L, "123432123432123****************.000000" },
1118 { 1.234321234321234e31L, "123432123432123*****************.000000" },
1119 { 1.234321234321234e32L, "123432123432123******************.000000" },
1120 { 1.234321234321234e33L, "123432123432123*******************.000000" },
1121 { 1.234321234321234e34L, "123432123432123********************.000000" },
1122 { 1.234321234321234e35L, "123432123432123*********************.000000" },
1123 { 1.234321234321234e36L, "123432123432123**********************.000000" }
1126 for (k = 0; k < SIZEOF (data); k++)
1130 my_snprintf (result, sizeof (result), "%Lf", data[k].value);
1131 ASSERT (strmatch (data[k].string, result));
1132 ASSERT (retval == strlen (result));
1136 { /* A negative number. */
1139 my_snprintf (result, sizeof (result), "%Lf %d", -0.03125L, 33, 44, 55);
1140 ASSERT (strcmp (result, "-0.031250 33") == 0);
1141 ASSERT (retval == strlen (result));
1144 { /* Positive zero. */
1147 my_snprintf (result, sizeof (result), "%Lf %d", 0.0L, 33, 44, 55);
1148 ASSERT (strcmp (result, "0.000000 33") == 0);
1149 ASSERT (retval == strlen (result));
1152 { /* Negative zero. */
1155 my_snprintf (result, sizeof (result), "%Lf %d", minus_zerol, 33, 44, 55);
1156 if (have_minus_zero ())
1157 ASSERT (strcmp (result, "-0.000000 33") == 0);
1158 ASSERT (retval == strlen (result));
1161 { /* Positive infinity. */
1164 my_snprintf (result, sizeof (result), "%Lf %d", 1.0L / 0.0L, 33, 44, 55);
1165 ASSERT (strcmp (result, "inf 33") == 0
1166 || strcmp (result, "infinity 33") == 0);
1167 ASSERT (retval == strlen (result));
1170 { /* Negative infinity. */
1173 my_snprintf (result, sizeof (result), "%Lf %d", -1.0L / 0.0L, 33, 44, 55);
1174 ASSERT (strcmp (result, "-inf 33") == 0
1175 || strcmp (result, "-infinity 33") == 0);
1176 ASSERT (retval == strlen (result));
1182 my_snprintf (result, sizeof (result), "%Lf %d", NaNl (), 33, 44, 55);
1183 ASSERT (strlen (result) >= 3 + 3
1184 && strisnan (result, 0, strlen (result) - 3, 0)
1185 && strcmp (result + strlen (result) - 3, " 33") == 0);
1186 ASSERT (retval == strlen (result));
1188 #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
1190 static union { unsigned int word[4]; long double value; } x =
1191 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
1194 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1195 ASSERT (strlen (result) >= 3 + 3
1196 && strisnan (result, 0, strlen (result) - 3, 0)
1197 && strcmp (result + strlen (result) - 3, " 33") == 0);
1198 ASSERT (retval == strlen (result));
1201 /* Signalling NaN. */
1202 static union { unsigned int word[4]; long double value; } x =
1203 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
1206 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1207 ASSERT (strlen (result) >= 3 + 3
1208 && strisnan (result, 0, strlen (result) - 3, 0)
1209 && strcmp (result + strlen (result) - 3, " 33") == 0);
1210 ASSERT (retval == strlen (result));
1212 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
1213 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
1214 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
1215 Application Architecture.
1216 Table 5-2 "Floating-Point Register Encodings"
1217 Figure 5-6 "Memory to Floating-Point Register Data Translation"
1220 static union { unsigned int word[4]; long double value; } x =
1221 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
1224 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1225 ASSERT (strlen (result) >= 3 + 3
1226 && strisnan (result, 0, strlen (result) - 3, 0)
1227 && strcmp (result + strlen (result) - 3, " 33") == 0);
1228 ASSERT (retval == strlen (result));
1230 { /* Pseudo-Infinity. */
1231 static union { unsigned int word[4]; long double value; } x =
1232 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
1235 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1236 ASSERT (strlen (result) >= 3 + 3
1237 && strisnan (result, 0, strlen (result) - 3, 0)
1238 && strcmp (result + strlen (result) - 3, " 33") == 0);
1239 ASSERT (retval == strlen (result));
1241 { /* Pseudo-Zero. */
1242 static union { unsigned int word[4]; long double value; } x =
1243 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
1246 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1247 ASSERT (strlen (result) >= 3 + 3
1248 && strisnan (result, 0, strlen (result) - 3, 0)
1249 && strcmp (result + strlen (result) - 3, " 33") == 0);
1250 ASSERT (retval == strlen (result));
1252 { /* Unnormalized number. */
1253 static union { unsigned int word[4]; long double value; } x =
1254 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
1257 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1258 ASSERT (strlen (result) >= 3 + 3
1259 && strisnan (result, 0, strlen (result) - 3, 0)
1260 && strcmp (result + strlen (result) - 3, " 33") == 0);
1261 ASSERT (retval == strlen (result));
1263 { /* Pseudo-Denormal. */
1264 static union { unsigned int word[4]; long double value; } x =
1265 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
1268 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1269 ASSERT (strlen (result) >= 3 + 3
1270 && strisnan (result, 0, strlen (result) - 3, 0)
1271 && strcmp (result + strlen (result) - 3, " 33") == 0);
1272 ASSERT (retval == strlen (result));
1279 my_snprintf (result, sizeof (result), "%10Lf %d", 1.75L, 33, 44, 55);
1280 ASSERT (strcmp (result, " 1.750000 33") == 0);
1281 ASSERT (retval == strlen (result));
1287 my_snprintf (result, sizeof (result), "%-10Lf %d", 1.75L, 33, 44, 55);
1288 ASSERT (strcmp (result, "1.750000 33") == 0);
1289 ASSERT (retval == strlen (result));
1292 { /* FLAG_SHOWSIGN. */
1295 my_snprintf (result, sizeof (result), "%+Lf %d", 1.75L, 33, 44, 55);
1296 ASSERT (strcmp (result, "+1.750000 33") == 0);
1297 ASSERT (retval == strlen (result));
1303 my_snprintf (result, sizeof (result), "% Lf %d", 1.75L, 33, 44, 55);
1304 ASSERT (strcmp (result, " 1.750000 33") == 0);
1305 ASSERT (retval == strlen (result));
1311 my_snprintf (result, sizeof (result), "%#Lf %d", 1.75L, 33, 44, 55);
1312 ASSERT (strcmp (result, "1.750000 33") == 0);
1313 ASSERT (retval == strlen (result));
1319 my_snprintf (result, sizeof (result), "%#.Lf %d", 1.75L, 33, 44, 55);
1320 ASSERT (strcmp (result, "2. 33") == 0);
1321 ASSERT (retval == strlen (result));
1324 { /* FLAG_ZERO with finite number. */
1327 my_snprintf (result, sizeof (result), "%015Lf %d", 1234.0L, 33, 44, 55);
1328 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1329 ASSERT (retval == strlen (result));
1332 { /* FLAG_ZERO with infinite number. */
1335 my_snprintf (result, sizeof (result), "%015Lf %d", -1.0L / 0.0L, 33, 44, 55);
1336 ASSERT (strcmp (result, " -inf 33") == 0
1337 || strcmp (result, " -infinity 33") == 0);
1338 ASSERT (retval == strlen (result));
1341 { /* FLAG_ZERO with NaN. */
1344 my_snprintf (result, sizeof (result), "%050Lf %d", NaNl (), 33, 44, 55);
1345 ASSERT (strlen (result) == 50 + 3
1346 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1347 && strcmp (result + strlen (result) - 3, " 33") == 0);
1348 ASSERT (retval == strlen (result));
1354 my_snprintf (result, sizeof (result), "%.Lf %d", 1234.0L, 33, 44, 55);
1355 ASSERT (strcmp (result, "1234 33") == 0);
1356 ASSERT (retval == strlen (result));
1359 { /* Precision with no rounding. */
1362 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.951L, 33, 44, 55);
1363 ASSERT (strcmp (result, "999.95 33") == 0);
1364 ASSERT (retval == strlen (result));
1367 { /* Precision with rounding. */
1370 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.996L, 33, 44, 55);
1371 ASSERT (strcmp (result, "1000.00 33") == 0);
1372 ASSERT (retval == strlen (result));
1375 /* Test the support of the %F format directive. */
1377 { /* A positive number. */
1380 my_snprintf (result, sizeof (result), "%F %d", 12.75, 33, 44, 55);
1381 ASSERT (strcmp (result, "12.750000 33") == 0);
1382 ASSERT (retval == strlen (result));
1385 { /* A larger positive number. */
1388 my_snprintf (result, sizeof (result), "%F %d", 1234567.0, 33, 44, 55);
1389 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1390 ASSERT (retval == strlen (result));
1393 { /* A negative number. */
1396 my_snprintf (result, sizeof (result), "%F %d", -0.03125, 33, 44, 55);
1397 ASSERT (strcmp (result, "-0.031250 33") == 0);
1398 ASSERT (retval == strlen (result));
1401 { /* Positive zero. */
1404 my_snprintf (result, sizeof (result), "%F %d", 0.0, 33, 44, 55);
1405 ASSERT (strcmp (result, "0.000000 33") == 0);
1406 ASSERT (retval == strlen (result));
1409 { /* Negative zero. */
1412 my_snprintf (result, sizeof (result), "%F %d", -zerod, 33, 44, 55);
1413 if (have_minus_zero ())
1414 ASSERT (strcmp (result, "-0.000000 33") == 0);
1415 ASSERT (retval == strlen (result));
1418 { /* Positive infinity. */
1421 my_snprintf (result, sizeof (result), "%F %d", 1.0 / 0.0, 33, 44, 55);
1422 ASSERT (strcmp (result, "INF 33") == 0
1423 || strcmp (result, "INFINITY 33") == 0);
1424 ASSERT (retval == strlen (result));
1427 { /* Negative infinity. */
1430 my_snprintf (result, sizeof (result), "%F %d", -1.0 / 0.0, 33, 44, 55);
1431 ASSERT (strcmp (result, "-INF 33") == 0
1432 || strcmp (result, "-INFINITY 33") == 0);
1433 ASSERT (retval == strlen (result));
1439 my_snprintf (result, sizeof (result), "%F %d", NaNd (), 33, 44, 55);
1440 ASSERT (strlen (result) >= 3 + 3
1441 && strisnan (result, 0, strlen (result) - 3, 1)
1442 && strcmp (result + strlen (result) - 3, " 33") == 0);
1443 ASSERT (retval == strlen (result));
1449 my_snprintf (result, sizeof (result), "%015F %d", 1234.0, 33, 44, 55);
1450 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1451 ASSERT (retval == strlen (result));
1454 { /* FLAG_ZERO with infinite number. */
1457 my_snprintf (result, sizeof (result), "%015F %d", -1.0 / 0.0, 33, 44, 55);
1458 ASSERT (strcmp (result, " -INF 33") == 0
1459 || strcmp (result, " -INFINITY 33") == 0);
1460 ASSERT (retval == strlen (result));
1466 my_snprintf (result, sizeof (result), "%.F %d", 1234.0, 33, 44, 55);
1467 ASSERT (strcmp (result, "1234 33") == 0);
1468 ASSERT (retval == strlen (result));
1471 { /* Precision with no rounding. */
1474 my_snprintf (result, sizeof (result), "%.2F %d", 999.951, 33, 44, 55);
1475 ASSERT (strcmp (result, "999.95 33") == 0);
1476 ASSERT (retval == strlen (result));
1479 { /* Precision with rounding. */
1482 my_snprintf (result, sizeof (result), "%.2F %d", 999.996, 33, 44, 55);
1483 ASSERT (strcmp (result, "1000.00 33") == 0);
1484 ASSERT (retval == strlen (result));
1487 { /* A positive number. */
1490 my_snprintf (result, sizeof (result), "%LF %d", 12.75L, 33, 44, 55);
1491 ASSERT (strcmp (result, "12.750000 33") == 0);
1492 ASSERT (retval == strlen (result));
1495 { /* A larger positive number. */
1498 my_snprintf (result, sizeof (result), "%LF %d", 1234567.0L, 33, 44, 55);
1499 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1500 ASSERT (retval == strlen (result));
1503 { /* A negative number. */
1506 my_snprintf (result, sizeof (result), "%LF %d", -0.03125L, 33, 44, 55);
1507 ASSERT (strcmp (result, "-0.031250 33") == 0);
1508 ASSERT (retval == strlen (result));
1511 { /* Positive zero. */
1514 my_snprintf (result, sizeof (result), "%LF %d", 0.0L, 33, 44, 55);
1515 ASSERT (strcmp (result, "0.000000 33") == 0);
1516 ASSERT (retval == strlen (result));
1519 { /* Negative zero. */
1522 my_snprintf (result, sizeof (result), "%LF %d", minus_zerol, 33, 44, 55);
1523 if (have_minus_zero ())
1524 ASSERT (strcmp (result, "-0.000000 33") == 0);
1525 ASSERT (retval == strlen (result));
1528 { /* Positive infinity. */
1531 my_snprintf (result, sizeof (result), "%LF %d", 1.0L / 0.0L, 33, 44, 55);
1532 ASSERT (strcmp (result, "INF 33") == 0
1533 || strcmp (result, "INFINITY 33") == 0);
1534 ASSERT (retval == strlen (result));
1537 { /* Negative infinity. */
1540 my_snprintf (result, sizeof (result), "%LF %d", -1.0L / 0.0L, 33, 44, 55);
1541 ASSERT (strcmp (result, "-INF 33") == 0
1542 || strcmp (result, "-INFINITY 33") == 0);
1543 ASSERT (retval == strlen (result));
1549 my_snprintf (result, sizeof (result), "%LF %d", NaNl (), 33, 44, 55);
1550 ASSERT (strlen (result) >= 3 + 3
1551 && strisnan (result, 0, strlen (result) - 3, 1)
1552 && strcmp (result + strlen (result) - 3, " 33") == 0);
1553 ASSERT (retval == strlen (result));
1559 my_snprintf (result, sizeof (result), "%015LF %d", 1234.0L, 33, 44, 55);
1560 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1561 ASSERT (retval == strlen (result));
1564 { /* FLAG_ZERO with infinite number. */
1567 my_snprintf (result, sizeof (result), "%015LF %d", -1.0L / 0.0L, 33, 44, 55);
1568 ASSERT (strcmp (result, " -INF 33") == 0
1569 || strcmp (result, " -INFINITY 33") == 0);
1570 ASSERT (retval == strlen (result));
1576 my_snprintf (result, sizeof (result), "%.LF %d", 1234.0L, 33, 44, 55);
1577 ASSERT (strcmp (result, "1234 33") == 0);
1578 ASSERT (retval == strlen (result));
1581 { /* Precision with no rounding. */
1584 my_snprintf (result, sizeof (result), "%.2LF %d", 999.951L, 33, 44, 55);
1585 ASSERT (strcmp (result, "999.95 33") == 0);
1586 ASSERT (retval == strlen (result));
1589 { /* Precision with rounding. */
1592 my_snprintf (result, sizeof (result), "%.2LF %d", 999.996L, 33, 44, 55);
1593 ASSERT (strcmp (result, "1000.00 33") == 0);
1594 ASSERT (retval == strlen (result));
1597 /* Test the support of the %e format directive. */
1599 { /* A positive number. */
1602 my_snprintf (result, sizeof (result), "%e %d", 12.75, 33, 44, 55);
1603 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1604 || strcmp (result, "1.275000e+001 33") == 0);
1605 ASSERT (retval == strlen (result));
1608 { /* A larger positive number. */
1611 my_snprintf (result, sizeof (result), "%e %d", 1234567.0, 33, 44, 55);
1612 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1613 || strcmp (result, "1.234567e+006 33") == 0);
1614 ASSERT (retval == strlen (result));
1617 { /* Small and large positive numbers. */
1618 static struct { double value; const char *string; } data[] =
1620 { 1.234321234321234e-37, "1.234321e-37" },
1621 { 1.234321234321234e-36, "1.234321e-36" },
1622 { 1.234321234321234e-35, "1.234321e-35" },
1623 { 1.234321234321234e-34, "1.234321e-34" },
1624 { 1.234321234321234e-33, "1.234321e-33" },
1625 { 1.234321234321234e-32, "1.234321e-32" },
1626 { 1.234321234321234e-31, "1.234321e-31" },
1627 { 1.234321234321234e-30, "1.234321e-30" },
1628 { 1.234321234321234e-29, "1.234321e-29" },
1629 { 1.234321234321234e-28, "1.234321e-28" },
1630 { 1.234321234321234e-27, "1.234321e-27" },
1631 { 1.234321234321234e-26, "1.234321e-26" },
1632 { 1.234321234321234e-25, "1.234321e-25" },
1633 { 1.234321234321234e-24, "1.234321e-24" },
1634 { 1.234321234321234e-23, "1.234321e-23" },
1635 { 1.234321234321234e-22, "1.234321e-22" },
1636 { 1.234321234321234e-21, "1.234321e-21" },
1637 { 1.234321234321234e-20, "1.234321e-20" },
1638 { 1.234321234321234e-19, "1.234321e-19" },
1639 { 1.234321234321234e-18, "1.234321e-18" },
1640 { 1.234321234321234e-17, "1.234321e-17" },
1641 { 1.234321234321234e-16, "1.234321e-16" },
1642 { 1.234321234321234e-15, "1.234321e-15" },
1643 { 1.234321234321234e-14, "1.234321e-14" },
1644 { 1.234321234321234e-13, "1.234321e-13" },
1645 { 1.234321234321234e-12, "1.234321e-12" },
1646 { 1.234321234321234e-11, "1.234321e-11" },
1647 { 1.234321234321234e-10, "1.234321e-10" },
1648 { 1.234321234321234e-9, "1.234321e-09" },
1649 { 1.234321234321234e-8, "1.234321e-08" },
1650 { 1.234321234321234e-7, "1.234321e-07" },
1651 { 1.234321234321234e-6, "1.234321e-06" },
1652 { 1.234321234321234e-5, "1.234321e-05" },
1653 { 1.234321234321234e-4, "1.234321e-04" },
1654 { 1.234321234321234e-3, "1.234321e-03" },
1655 { 1.234321234321234e-2, "1.234321e-02" },
1656 { 1.234321234321234e-1, "1.234321e-01" },
1657 { 1.234321234321234, "1.234321e+00" },
1658 { 1.234321234321234e1, "1.234321e+01" },
1659 { 1.234321234321234e2, "1.234321e+02" },
1660 { 1.234321234321234e3, "1.234321e+03" },
1661 { 1.234321234321234e4, "1.234321e+04" },
1662 { 1.234321234321234e5, "1.234321e+05" },
1663 { 1.234321234321234e6, "1.234321e+06" },
1664 { 1.234321234321234e7, "1.234321e+07" },
1665 { 1.234321234321234e8, "1.234321e+08" },
1666 { 1.234321234321234e9, "1.234321e+09" },
1667 { 1.234321234321234e10, "1.234321e+10" },
1668 { 1.234321234321234e11, "1.234321e+11" },
1669 { 1.234321234321234e12, "1.234321e+12" },
1670 { 1.234321234321234e13, "1.234321e+13" },
1671 { 1.234321234321234e14, "1.234321e+14" },
1672 { 1.234321234321234e15, "1.234321e+15" },
1673 { 1.234321234321234e16, "1.234321e+16" },
1674 { 1.234321234321234e17, "1.234321e+17" },
1675 { 1.234321234321234e18, "1.234321e+18" },
1676 { 1.234321234321234e19, "1.234321e+19" },
1677 { 1.234321234321234e20, "1.234321e+20" },
1678 { 1.234321234321234e21, "1.234321e+21" },
1679 { 1.234321234321234e22, "1.234321e+22" },
1680 { 1.234321234321234e23, "1.234321e+23" },
1681 { 1.234321234321234e24, "1.234321e+24" },
1682 { 1.234321234321234e25, "1.234321e+25" },
1683 { 1.234321234321234e26, "1.234321e+26" },
1684 { 1.234321234321234e27, "1.234321e+27" },
1685 { 1.234321234321234e28, "1.234321e+28" },
1686 { 1.234321234321234e29, "1.234321e+29" },
1687 { 1.234321234321234e30, "1.234321e+30" },
1688 { 1.234321234321234e31, "1.234321e+31" },
1689 { 1.234321234321234e32, "1.234321e+32" },
1690 { 1.234321234321234e33, "1.234321e+33" },
1691 { 1.234321234321234e34, "1.234321e+34" },
1692 { 1.234321234321234e35, "1.234321e+35" },
1693 { 1.234321234321234e36, "1.234321e+36" }
1696 for (k = 0; k < SIZEOF (data); k++)
1700 my_snprintf (result, sizeof (result), "%e", data[k].value);
1701 const char *expected = data[k].string;
1702 ASSERT (strcmp (result, expected) == 0
1703 /* Some implementations produce exponents with 3 digits. */
1704 || (strlen (result) == strlen (expected) + 1
1705 && memcmp (result, expected, strlen (expected) - 2) == 0
1706 && result[strlen (expected) - 2] == '0'
1707 && strcmp (result + strlen (expected) - 1,
1708 expected + strlen (expected) - 2)
1710 ASSERT (retval == strlen (result));
1714 { /* A negative number. */
1717 my_snprintf (result, sizeof (result), "%e %d", -0.03125, 33, 44, 55);
1718 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
1719 || strcmp (result, "-3.125000e-002 33") == 0);
1720 ASSERT (retval == strlen (result));
1723 { /* Positive zero. */
1726 my_snprintf (result, sizeof (result), "%e %d", 0.0, 33, 44, 55);
1727 ASSERT (strcmp (result, "0.000000e+00 33") == 0
1728 || strcmp (result, "0.000000e+000 33") == 0);
1729 ASSERT (retval == strlen (result));
1732 { /* Negative zero. */
1735 my_snprintf (result, sizeof (result), "%e %d", -zerod, 33, 44, 55);
1736 if (have_minus_zero ())
1737 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
1738 || strcmp (result, "-0.000000e+000 33") == 0);
1739 ASSERT (retval == strlen (result));
1742 { /* Positive infinity. */
1745 my_snprintf (result, sizeof (result), "%e %d", 1.0 / 0.0, 33, 44, 55);
1746 ASSERT (strcmp (result, "inf 33") == 0
1747 || strcmp (result, "infinity 33") == 0);
1748 ASSERT (retval == strlen (result));
1751 { /* Negative infinity. */
1754 my_snprintf (result, sizeof (result), "%e %d", -1.0 / 0.0, 33, 44, 55);
1755 ASSERT (strcmp (result, "-inf 33") == 0
1756 || strcmp (result, "-infinity 33") == 0);
1757 ASSERT (retval == strlen (result));
1763 my_snprintf (result, sizeof (result), "%e %d", NaNd (), 33, 44, 55);
1764 ASSERT (strlen (result) >= 3 + 3
1765 && strisnan (result, 0, strlen (result) - 3, 0)
1766 && strcmp (result + strlen (result) - 3, " 33") == 0);
1767 ASSERT (retval == strlen (result));
1773 my_snprintf (result, sizeof (result), "%15e %d", 1.75, 33, 44, 55);
1774 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1775 || strcmp (result, " 1.750000e+000 33") == 0);
1776 ASSERT (retval == strlen (result));
1782 my_snprintf (result, sizeof (result), "%-15e %d", 1.75, 33, 44, 55);
1783 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1784 || strcmp (result, "1.750000e+000 33") == 0);
1785 ASSERT (retval == strlen (result));
1788 { /* FLAG_SHOWSIGN. */
1791 my_snprintf (result, sizeof (result), "%+e %d", 1.75, 33, 44, 55);
1792 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
1793 || strcmp (result, "+1.750000e+000 33") == 0);
1794 ASSERT (retval == strlen (result));
1800 my_snprintf (result, sizeof (result), "% e %d", 1.75, 33, 44, 55);
1801 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1802 || strcmp (result, " 1.750000e+000 33") == 0);
1803 ASSERT (retval == strlen (result));
1809 my_snprintf (result, sizeof (result), "%#e %d", 1.75, 33, 44, 55);
1810 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1811 || strcmp (result, "1.750000e+000 33") == 0);
1812 ASSERT (retval == strlen (result));
1818 my_snprintf (result, sizeof (result), "%#.e %d", 1.75, 33, 44, 55);
1819 ASSERT (strcmp (result, "2.e+00 33") == 0
1820 || strcmp (result, "2.e+000 33") == 0);
1821 ASSERT (retval == strlen (result));
1827 my_snprintf (result, sizeof (result), "%#.e %d", 9.75, 33, 44, 55);
1828 ASSERT (strcmp (result, "1.e+01 33") == 0
1829 || strcmp (result, "1.e+001 33") == 0);
1830 ASSERT (retval == strlen (result));
1833 { /* FLAG_ZERO with finite number. */
1836 my_snprintf (result, sizeof (result), "%015e %d", 1234.0, 33, 44, 55);
1837 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
1838 || strcmp (result, "001.234000e+003 33") == 0);
1839 ASSERT (retval == strlen (result));
1842 { /* FLAG_ZERO with infinite number. */
1845 my_snprintf (result, sizeof (result), "%015e %d", -1.0 / 0.0, 33, 44, 55);
1846 ASSERT (strcmp (result, " -inf 33") == 0
1847 || strcmp (result, " -infinity 33") == 0);
1848 ASSERT (retval == strlen (result));
1851 { /* FLAG_ZERO with NaN. */
1854 my_snprintf (result, sizeof (result), "%050e %d", NaNd (), 33, 44, 55);
1855 ASSERT (strlen (result) == 50 + 3
1856 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1857 && strcmp (result + strlen (result) - 3, " 33") == 0);
1858 ASSERT (retval == strlen (result));
1864 my_snprintf (result, sizeof (result), "%.e %d", 1234.0, 33, 44, 55);
1865 ASSERT (strcmp (result, "1e+03 33") == 0
1866 || strcmp (result, "1e+003 33") == 0);
1867 ASSERT (retval == strlen (result));
1870 { /* Precision with no rounding. */
1873 my_snprintf (result, sizeof (result), "%.4e %d", 999.951, 33, 44, 55);
1874 ASSERT (strcmp (result, "9.9995e+02 33") == 0
1875 || strcmp (result, "9.9995e+002 33") == 0);
1876 ASSERT (retval == strlen (result));
1879 { /* Precision with rounding. */
1882 my_snprintf (result, sizeof (result), "%.4e %d", 999.996, 33, 44, 55);
1883 ASSERT (strcmp (result, "1.0000e+03 33") == 0
1884 || strcmp (result, "1.0000e+003 33") == 0);
1885 ASSERT (retval == strlen (result));
1888 { /* A positive number. */
1891 my_snprintf (result, sizeof (result), "%Le %d", 12.75L, 33, 44, 55);
1892 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1893 || strcmp (result, "1.275000e+001 33") == 0);
1894 ASSERT (retval == strlen (result));
1897 { /* A larger positive number. */
1900 my_snprintf (result, sizeof (result), "%Le %d", 1234567.0L, 33, 44, 55);
1901 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1902 || strcmp (result, "1.234567e+006 33") == 0);
1903 ASSERT (retval == strlen (result));
1906 { /* Small and large positive numbers. */
1907 static struct { long double value; const char *string; } data[] =
1909 { 1.234321234321234e-37L, "1.234321e-37" },
1910 { 1.234321234321234e-36L, "1.234321e-36" },
1911 { 1.234321234321234e-35L, "1.234321e-35" },
1912 { 1.234321234321234e-34L, "1.234321e-34" },
1913 { 1.234321234321234e-33L, "1.234321e-33" },
1914 { 1.234321234321234e-32L, "1.234321e-32" },
1915 { 1.234321234321234e-31L, "1.234321e-31" },
1916 { 1.234321234321234e-30L, "1.234321e-30" },
1917 { 1.234321234321234e-29L, "1.234321e-29" },
1918 { 1.234321234321234e-28L, "1.234321e-28" },
1919 { 1.234321234321234e-27L, "1.234321e-27" },
1920 { 1.234321234321234e-26L, "1.234321e-26" },
1921 { 1.234321234321234e-25L, "1.234321e-25" },
1922 { 1.234321234321234e-24L, "1.234321e-24" },
1923 { 1.234321234321234e-23L, "1.234321e-23" },
1924 { 1.234321234321234e-22L, "1.234321e-22" },
1925 { 1.234321234321234e-21L, "1.234321e-21" },
1926 { 1.234321234321234e-20L, "1.234321e-20" },
1927 { 1.234321234321234e-19L, "1.234321e-19" },
1928 { 1.234321234321234e-18L, "1.234321e-18" },
1929 { 1.234321234321234e-17L, "1.234321e-17" },
1930 { 1.234321234321234e-16L, "1.234321e-16" },
1931 { 1.234321234321234e-15L, "1.234321e-15" },
1932 { 1.234321234321234e-14L, "1.234321e-14" },
1933 { 1.234321234321234e-13L, "1.234321e-13" },
1934 { 1.234321234321234e-12L, "1.234321e-12" },
1935 { 1.234321234321234e-11L, "1.234321e-11" },
1936 { 1.234321234321234e-10L, "1.234321e-10" },
1937 { 1.234321234321234e-9L, "1.234321e-09" },
1938 { 1.234321234321234e-8L, "1.234321e-08" },
1939 { 1.234321234321234e-7L, "1.234321e-07" },
1940 { 1.234321234321234e-6L, "1.234321e-06" },
1941 { 1.234321234321234e-5L, "1.234321e-05" },
1942 { 1.234321234321234e-4L, "1.234321e-04" },
1943 { 1.234321234321234e-3L, "1.234321e-03" },
1944 { 1.234321234321234e-2L, "1.234321e-02" },
1945 { 1.234321234321234e-1L, "1.234321e-01" },
1946 { 1.234321234321234L, "1.234321e+00" },
1947 { 1.234321234321234e1L, "1.234321e+01" },
1948 { 1.234321234321234e2L, "1.234321e+02" },
1949 { 1.234321234321234e3L, "1.234321e+03" },
1950 { 1.234321234321234e4L, "1.234321e+04" },
1951 { 1.234321234321234e5L, "1.234321e+05" },
1952 { 1.234321234321234e6L, "1.234321e+06" },
1953 { 1.234321234321234e7L, "1.234321e+07" },
1954 { 1.234321234321234e8L, "1.234321e+08" },
1955 { 1.234321234321234e9L, "1.234321e+09" },
1956 { 1.234321234321234e10L, "1.234321e+10" },
1957 { 1.234321234321234e11L, "1.234321e+11" },
1958 { 1.234321234321234e12L, "1.234321e+12" },
1959 { 1.234321234321234e13L, "1.234321e+13" },
1960 { 1.234321234321234e14L, "1.234321e+14" },
1961 { 1.234321234321234e15L, "1.234321e+15" },
1962 { 1.234321234321234e16L, "1.234321e+16" },
1963 { 1.234321234321234e17L, "1.234321e+17" },
1964 { 1.234321234321234e18L, "1.234321e+18" },
1965 { 1.234321234321234e19L, "1.234321e+19" },
1966 { 1.234321234321234e20L, "1.234321e+20" },
1967 { 1.234321234321234e21L, "1.234321e+21" },
1968 { 1.234321234321234e22L, "1.234321e+22" },
1969 { 1.234321234321234e23L, "1.234321e+23" },
1970 { 1.234321234321234e24L, "1.234321e+24" },
1971 { 1.234321234321234e25L, "1.234321e+25" },
1972 { 1.234321234321234e26L, "1.234321e+26" },
1973 { 1.234321234321234e27L, "1.234321e+27" },
1974 { 1.234321234321234e28L, "1.234321e+28" },
1975 { 1.234321234321234e29L, "1.234321e+29" },
1976 { 1.234321234321234e30L, "1.234321e+30" },
1977 { 1.234321234321234e31L, "1.234321e+31" },
1978 { 1.234321234321234e32L, "1.234321e+32" },
1979 { 1.234321234321234e33L, "1.234321e+33" },
1980 { 1.234321234321234e34L, "1.234321e+34" },
1981 { 1.234321234321234e35L, "1.234321e+35" },
1982 { 1.234321234321234e36L, "1.234321e+36" }
1985 for (k = 0; k < SIZEOF (data); k++)
1989 my_snprintf (result, sizeof (result), "%Le", data[k].value);
1990 const char *expected = data[k].string;
1991 ASSERT (strcmp (result, expected) == 0
1992 /* Some implementations produce exponents with 3 digits. */
1993 || (strlen (result) == strlen (expected) + 1
1994 && memcmp (result, expected, strlen (expected) - 2) == 0
1995 && result[strlen (expected) - 2] == '0'
1996 && strcmp (result + strlen (expected) - 1,
1997 expected + strlen (expected) - 2)
1999 ASSERT (retval == strlen (result));
2003 { /* A negative number. */
2006 my_snprintf (result, sizeof (result), "%Le %d", -0.03125L, 33, 44, 55);
2007 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
2008 || strcmp (result, "-3.125000e-002 33") == 0);
2009 ASSERT (retval == strlen (result));
2012 { /* Positive zero. */
2015 my_snprintf (result, sizeof (result), "%Le %d", 0.0L, 33, 44, 55);
2016 ASSERT (strcmp (result, "0.000000e+00 33") == 0
2017 || strcmp (result, "0.000000e+000 33") == 0);
2018 ASSERT (retval == strlen (result));
2021 { /* Negative zero. */
2024 my_snprintf (result, sizeof (result), "%Le %d", minus_zerol, 33, 44, 55);
2025 if (have_minus_zero ())
2026 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
2027 || strcmp (result, "-0.000000e+000 33") == 0);
2028 ASSERT (retval == strlen (result));
2031 { /* Positive infinity. */
2034 my_snprintf (result, sizeof (result), "%Le %d", 1.0L / 0.0L, 33, 44, 55);
2035 ASSERT (strcmp (result, "inf 33") == 0
2036 || strcmp (result, "infinity 33") == 0);
2037 ASSERT (retval == strlen (result));
2040 { /* Negative infinity. */
2043 my_snprintf (result, sizeof (result), "%Le %d", -1.0L / 0.0L, 33, 44, 55);
2044 ASSERT (strcmp (result, "-inf 33") == 0
2045 || strcmp (result, "-infinity 33") == 0);
2046 ASSERT (retval == strlen (result));
2052 my_snprintf (result, sizeof (result), "%Le %d", NaNl (), 33, 44, 55);
2053 ASSERT (strlen (result) >= 3 + 3
2054 && strisnan (result, 0, strlen (result) - 3, 0)
2055 && strcmp (result + strlen (result) - 3, " 33") == 0);
2056 ASSERT (retval == strlen (result));
2058 #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_))
2060 static union { unsigned int word[4]; long double value; } x =
2061 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2064 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2065 ASSERT (strlen (result) >= 3 + 3
2066 && strisnan (result, 0, strlen (result) - 3, 0)
2067 && strcmp (result + strlen (result) - 3, " 33") == 0);
2068 ASSERT (retval == strlen (result));
2071 /* Signalling NaN. */
2072 static union { unsigned int word[4]; long double value; } x =
2073 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2076 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2077 ASSERT (strlen (result) >= 3 + 3
2078 && strisnan (result, 0, strlen (result) - 3, 0)
2079 && strcmp (result + strlen (result) - 3, " 33") == 0);
2080 ASSERT (retval == strlen (result));
2082 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2083 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2084 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2085 Application Architecture.
2086 Table 5-2 "Floating-Point Register Encodings"
2087 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2090 static union { unsigned int word[4]; long double value; } x =
2091 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2094 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2095 ASSERT (strlen (result) >= 3 + 3
2096 && strisnan (result, 0, strlen (result) - 3, 0)
2097 && strcmp (result + strlen (result) - 3, " 33") == 0);
2098 ASSERT (retval == strlen (result));
2100 { /* Pseudo-Infinity. */
2101 static union { unsigned int word[4]; long double value; } x =
2102 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2105 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2106 ASSERT (strlen (result) >= 3 + 3
2107 && strisnan (result, 0, strlen (result) - 3, 0)
2108 && strcmp (result + strlen (result) - 3, " 33") == 0);
2109 ASSERT (retval == strlen (result));
2111 { /* Pseudo-Zero. */
2112 static union { unsigned int word[4]; long double value; } x =
2113 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2116 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2117 ASSERT (strlen (result) >= 3 + 3
2118 && strisnan (result, 0, strlen (result) - 3, 0)
2119 && strcmp (result + strlen (result) - 3, " 33") == 0);
2120 ASSERT (retval == strlen (result));
2122 { /* Unnormalized number. */
2123 static union { unsigned int word[4]; long double value; } x =
2124 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2127 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2128 ASSERT (strlen (result) >= 3 + 3
2129 && strisnan (result, 0, strlen (result) - 3, 0)
2130 && strcmp (result + strlen (result) - 3, " 33") == 0);
2131 ASSERT (retval == strlen (result));
2133 { /* Pseudo-Denormal. */
2134 static union { unsigned int word[4]; long double value; } x =
2135 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2138 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2139 ASSERT (strlen (result) >= 3 + 3
2140 && strisnan (result, 0, strlen (result) - 3, 0)
2141 && strcmp (result + strlen (result) - 3, " 33") == 0);
2142 ASSERT (retval == strlen (result));
2149 my_snprintf (result, sizeof (result), "%15Le %d", 1.75L, 33, 44, 55);
2150 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2151 || strcmp (result, " 1.750000e+000 33") == 0);
2152 ASSERT (retval == strlen (result));
2158 my_snprintf (result, sizeof (result), "%-15Le %d", 1.75L, 33, 44, 55);
2159 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2160 || strcmp (result, "1.750000e+000 33") == 0);
2161 ASSERT (retval == strlen (result));
2164 { /* FLAG_SHOWSIGN. */
2167 my_snprintf (result, sizeof (result), "%+Le %d", 1.75L, 33, 44, 55);
2168 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
2169 || strcmp (result, "+1.750000e+000 33") == 0);
2170 ASSERT (retval == strlen (result));
2176 my_snprintf (result, sizeof (result), "% Le %d", 1.75L, 33, 44, 55);
2177 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2178 || strcmp (result, " 1.750000e+000 33") == 0);
2179 ASSERT (retval == strlen (result));
2185 my_snprintf (result, sizeof (result), "%#Le %d", 1.75L, 33, 44, 55);
2186 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2187 || strcmp (result, "1.750000e+000 33") == 0);
2188 ASSERT (retval == strlen (result));
2194 my_snprintf (result, sizeof (result), "%#.Le %d", 1.75L, 33, 44, 55);
2195 ASSERT (strcmp (result, "2.e+00 33") == 0
2196 || strcmp (result, "2.e+000 33") == 0);
2197 ASSERT (retval == strlen (result));
2203 my_snprintf (result, sizeof (result), "%#.Le %d", 9.75L, 33, 44, 55);
2204 ASSERT (strcmp (result, "1.e+01 33") == 0
2205 || strcmp (result, "1.e+001 33") == 0);
2206 ASSERT (retval == strlen (result));
2209 { /* FLAG_ZERO with finite number. */
2212 my_snprintf (result, sizeof (result), "%015Le %d", 1234.0L, 33, 44, 55);
2213 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
2214 || strcmp (result, "001.234000e+003 33") == 0);
2215 ASSERT (retval == strlen (result));
2218 { /* FLAG_ZERO with infinite number. */
2221 my_snprintf (result, sizeof (result), "%015Le %d", -1.0L / 0.0L, 33, 44, 55);
2222 ASSERT (strcmp (result, " -inf 33") == 0
2223 || strcmp (result, " -infinity 33") == 0);
2224 ASSERT (retval == strlen (result));
2227 { /* FLAG_ZERO with NaN. */
2230 my_snprintf (result, sizeof (result), "%050Le %d", NaNl (), 33, 44, 55);
2231 ASSERT (strlen (result) == 50 + 3
2232 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2233 && strcmp (result + strlen (result) - 3, " 33") == 0);
2234 ASSERT (retval == strlen (result));
2240 my_snprintf (result, sizeof (result), "%.Le %d", 1234.0L, 33, 44, 55);
2241 ASSERT (strcmp (result, "1e+03 33") == 0
2242 || strcmp (result, "1e+003 33") == 0);
2243 ASSERT (retval == strlen (result));
2246 { /* Precision with no rounding. */
2249 my_snprintf (result, sizeof (result), "%.4Le %d", 999.951L, 33, 44, 55);
2250 ASSERT (strcmp (result, "9.9995e+02 33") == 0
2251 || strcmp (result, "9.9995e+002 33") == 0);
2252 ASSERT (retval == strlen (result));
2255 { /* Precision with rounding. */
2258 my_snprintf (result, sizeof (result), "%.4Le %d", 999.996L, 33, 44, 55);
2259 ASSERT (strcmp (result, "1.0000e+03 33") == 0
2260 || strcmp (result, "1.0000e+003 33") == 0);
2261 ASSERT (retval == strlen (result));
2264 /* Test the support of the %g format directive. */
2266 { /* A positive number. */
2269 my_snprintf (result, sizeof (result), "%g %d", 12.75, 33, 44, 55);
2270 ASSERT (strcmp (result, "12.75 33") == 0);
2271 ASSERT (retval == strlen (result));
2274 { /* A larger positive number. */
2277 my_snprintf (result, sizeof (result), "%g %d", 1234567.0, 33, 44, 55);
2278 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2279 || strcmp (result, "1.23457e+006 33") == 0);
2280 ASSERT (retval == strlen (result));
2283 { /* Small and large positive numbers. */
2284 static struct { double value; const char *string; } data[] =
2286 { 1.234321234321234e-37, "1.23432e-37" },
2287 { 1.234321234321234e-36, "1.23432e-36" },
2288 { 1.234321234321234e-35, "1.23432e-35" },
2289 { 1.234321234321234e-34, "1.23432e-34" },
2290 { 1.234321234321234e-33, "1.23432e-33" },
2291 { 1.234321234321234e-32, "1.23432e-32" },
2292 { 1.234321234321234e-31, "1.23432e-31" },
2293 { 1.234321234321234e-30, "1.23432e-30" },
2294 { 1.234321234321234e-29, "1.23432e-29" },
2295 { 1.234321234321234e-28, "1.23432e-28" },
2296 { 1.234321234321234e-27, "1.23432e-27" },
2297 { 1.234321234321234e-26, "1.23432e-26" },
2298 { 1.234321234321234e-25, "1.23432e-25" },
2299 { 1.234321234321234e-24, "1.23432e-24" },
2300 { 1.234321234321234e-23, "1.23432e-23" },
2301 { 1.234321234321234e-22, "1.23432e-22" },
2302 { 1.234321234321234e-21, "1.23432e-21" },
2303 { 1.234321234321234e-20, "1.23432e-20" },
2304 { 1.234321234321234e-19, "1.23432e-19" },
2305 { 1.234321234321234e-18, "1.23432e-18" },
2306 { 1.234321234321234e-17, "1.23432e-17" },
2307 { 1.234321234321234e-16, "1.23432e-16" },
2308 { 1.234321234321234e-15, "1.23432e-15" },
2309 { 1.234321234321234e-14, "1.23432e-14" },
2310 { 1.234321234321234e-13, "1.23432e-13" },
2311 { 1.234321234321234e-12, "1.23432e-12" },
2312 { 1.234321234321234e-11, "1.23432e-11" },
2313 { 1.234321234321234e-10, "1.23432e-10" },
2314 { 1.234321234321234e-9, "1.23432e-09" },
2315 { 1.234321234321234e-8, "1.23432e-08" },
2316 { 1.234321234321234e-7, "1.23432e-07" },
2317 { 1.234321234321234e-6, "1.23432e-06" },
2318 { 1.234321234321234e-5, "1.23432e-05" },
2319 { 1.234321234321234e-4, "0.000123432" },
2320 { 1.234321234321234e-3, "0.00123432" },
2321 { 1.234321234321234e-2, "0.0123432" },
2322 { 1.234321234321234e-1, "0.123432" },
2323 { 1.234321234321234, "1.23432" },
2324 { 1.234321234321234e1, "12.3432" },
2325 { 1.234321234321234e2, "123.432" },
2326 { 1.234321234321234e3, "1234.32" },
2327 { 1.234321234321234e4, "12343.2" },
2328 { 1.234321234321234e5, "123432" },
2329 { 1.234321234321234e6, "1.23432e+06" },
2330 { 1.234321234321234e7, "1.23432e+07" },
2331 { 1.234321234321234e8, "1.23432e+08" },
2332 { 1.234321234321234e9, "1.23432e+09" },
2333 { 1.234321234321234e10, "1.23432e+10" },
2334 { 1.234321234321234e11, "1.23432e+11" },
2335 { 1.234321234321234e12, "1.23432e+12" },
2336 { 1.234321234321234e13, "1.23432e+13" },
2337 { 1.234321234321234e14, "1.23432e+14" },
2338 { 1.234321234321234e15, "1.23432e+15" },
2339 { 1.234321234321234e16, "1.23432e+16" },
2340 { 1.234321234321234e17, "1.23432e+17" },
2341 { 1.234321234321234e18, "1.23432e+18" },
2342 { 1.234321234321234e19, "1.23432e+19" },
2343 { 1.234321234321234e20, "1.23432e+20" },
2344 { 1.234321234321234e21, "1.23432e+21" },
2345 { 1.234321234321234e22, "1.23432e+22" },
2346 { 1.234321234321234e23, "1.23432e+23" },
2347 { 1.234321234321234e24, "1.23432e+24" },
2348 { 1.234321234321234e25, "1.23432e+25" },
2349 { 1.234321234321234e26, "1.23432e+26" },
2350 { 1.234321234321234e27, "1.23432e+27" },
2351 { 1.234321234321234e28, "1.23432e+28" },
2352 { 1.234321234321234e29, "1.23432e+29" },
2353 { 1.234321234321234e30, "1.23432e+30" },
2354 { 1.234321234321234e31, "1.23432e+31" },
2355 { 1.234321234321234e32, "1.23432e+32" },
2356 { 1.234321234321234e33, "1.23432e+33" },
2357 { 1.234321234321234e34, "1.23432e+34" },
2358 { 1.234321234321234e35, "1.23432e+35" },
2359 { 1.234321234321234e36, "1.23432e+36" }
2362 for (k = 0; k < SIZEOF (data); k++)
2366 my_snprintf (result, sizeof (result), "%g", data[k].value);
2367 const char *expected = data[k].string;
2368 ASSERT (strcmp (result, expected) == 0
2369 /* Some implementations produce exponents with 3 digits. */
2370 || (expected[strlen (expected) - 4] == 'e'
2371 && strlen (result) == strlen (expected) + 1
2372 && memcmp (result, expected, strlen (expected) - 2) == 0
2373 && result[strlen (expected) - 2] == '0'
2374 && strcmp (result + strlen (expected) - 1,
2375 expected + strlen (expected) - 2)
2377 ASSERT (retval == strlen (result));
2381 { /* A negative number. */
2384 my_snprintf (result, sizeof (result), "%g %d", -0.03125, 33, 44, 55);
2385 ASSERT (strcmp (result, "-0.03125 33") == 0);
2386 ASSERT (retval == strlen (result));
2389 { /* Positive zero. */
2392 my_snprintf (result, sizeof (result), "%g %d", 0.0, 33, 44, 55);
2393 ASSERT (strcmp (result, "0 33") == 0);
2394 ASSERT (retval == strlen (result));
2397 { /* Negative zero. */
2400 my_snprintf (result, sizeof (result), "%g %d", -zerod, 33, 44, 55);
2401 if (have_minus_zero ())
2402 ASSERT (strcmp (result, "-0 33") == 0);
2403 ASSERT (retval == strlen (result));
2406 { /* Positive infinity. */
2409 my_snprintf (result, sizeof (result), "%g %d", 1.0 / 0.0, 33, 44, 55);
2410 ASSERT (strcmp (result, "inf 33") == 0
2411 || strcmp (result, "infinity 33") == 0);
2412 ASSERT (retval == strlen (result));
2415 { /* Negative infinity. */
2418 my_snprintf (result, sizeof (result), "%g %d", -1.0 / 0.0, 33, 44, 55);
2419 ASSERT (strcmp (result, "-inf 33") == 0
2420 || strcmp (result, "-infinity 33") == 0);
2421 ASSERT (retval == strlen (result));
2427 my_snprintf (result, sizeof (result), "%g %d", NaNd (), 33, 44, 55);
2428 ASSERT (strlen (result) >= 3 + 3
2429 && strisnan (result, 0, strlen (result) - 3, 0)
2430 && strcmp (result + strlen (result) - 3, " 33") == 0);
2431 ASSERT (retval == strlen (result));
2437 my_snprintf (result, sizeof (result), "%10g %d", 1.75, 33, 44, 55);
2438 ASSERT (strcmp (result, " 1.75 33") == 0);
2439 ASSERT (retval == strlen (result));
2445 my_snprintf (result, sizeof (result), "%-10g %d", 1.75, 33, 44, 55);
2446 ASSERT (strcmp (result, "1.75 33") == 0);
2447 ASSERT (retval == strlen (result));
2450 { /* FLAG_SHOWSIGN. */
2453 my_snprintf (result, sizeof (result), "%+g %d", 1.75, 33, 44, 55);
2454 ASSERT (strcmp (result, "+1.75 33") == 0);
2455 ASSERT (retval == strlen (result));
2461 my_snprintf (result, sizeof (result), "% g %d", 1.75, 33, 44, 55);
2462 ASSERT (strcmp (result, " 1.75 33") == 0);
2463 ASSERT (retval == strlen (result));
2469 my_snprintf (result, sizeof (result), "%#g %d", 1.75, 33, 44, 55);
2470 ASSERT (strcmp (result, "1.75000 33") == 0);
2471 ASSERT (retval == strlen (result));
2477 my_snprintf (result, sizeof (result), "%#.g %d", 1.75, 33, 44, 55);
2478 ASSERT (strcmp (result, "2. 33") == 0);
2479 ASSERT (retval == strlen (result));
2485 my_snprintf (result, sizeof (result), "%#.g %d", 9.75, 33, 44, 55);
2486 ASSERT (strcmp (result, "1.e+01 33") == 0
2487 || strcmp (result, "1.e+001 33") == 0);
2488 ASSERT (retval == strlen (result));
2491 { /* FLAG_ZERO with finite number. */
2494 my_snprintf (result, sizeof (result), "%010g %d", 1234.0, 33, 44, 55);
2495 ASSERT (strcmp (result, "0000001234 33") == 0);
2496 ASSERT (retval == strlen (result));
2499 { /* FLAG_ZERO with infinite number. */
2502 my_snprintf (result, sizeof (result), "%015g %d", -1.0 / 0.0, 33, 44, 55);
2503 ASSERT (strcmp (result, " -inf 33") == 0
2504 || strcmp (result, " -infinity 33") == 0);
2505 ASSERT (retval == strlen (result));
2508 { /* FLAG_ZERO with NaN. */
2511 my_snprintf (result, sizeof (result), "%050g %d", NaNd (), 33, 44, 55);
2512 ASSERT (strlen (result) == 50 + 3
2513 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2514 && strcmp (result + strlen (result) - 3, " 33") == 0);
2515 ASSERT (retval == strlen (result));
2521 my_snprintf (result, sizeof (result), "%.g %d", 1234.0, 33, 44, 55);
2522 ASSERT (strcmp (result, "1e+03 33") == 0
2523 || strcmp (result, "1e+003 33") == 0);
2524 ASSERT (retval == strlen (result));
2527 { /* Precision with no rounding. */
2530 my_snprintf (result, sizeof (result), "%.5g %d", 999.951, 33, 44, 55);
2531 ASSERT (strcmp (result, "999.95 33") == 0);
2532 ASSERT (retval == strlen (result));
2535 { /* Precision with rounding. */
2538 my_snprintf (result, sizeof (result), "%.5g %d", 999.996, 33, 44, 55);
2539 ASSERT (strcmp (result, "1000 33") == 0);
2540 ASSERT (retval == strlen (result));
2543 { /* A positive number. */
2546 my_snprintf (result, sizeof (result), "%Lg %d", 12.75L, 33, 44, 55);
2547 ASSERT (strcmp (result, "12.75 33") == 0);
2548 ASSERT (retval == strlen (result));
2551 { /* A larger positive number. */
2554 my_snprintf (result, sizeof (result), "%Lg %d", 1234567.0L, 33, 44, 55);
2555 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2556 || strcmp (result, "1.23457e+006 33") == 0);
2557 ASSERT (retval == strlen (result));
2560 { /* Small and large positive numbers. */
2561 static struct { long double value; const char *string; } data[] =
2563 { 1.234321234321234e-37L, "1.23432e-37" },
2564 { 1.234321234321234e-36L, "1.23432e-36" },
2565 { 1.234321234321234e-35L, "1.23432e-35" },
2566 { 1.234321234321234e-34L, "1.23432e-34" },
2567 { 1.234321234321234e-33L, "1.23432e-33" },
2568 { 1.234321234321234e-32L, "1.23432e-32" },
2569 { 1.234321234321234e-31L, "1.23432e-31" },
2570 { 1.234321234321234e-30L, "1.23432e-30" },
2571 { 1.234321234321234e-29L, "1.23432e-29" },
2572 { 1.234321234321234e-28L, "1.23432e-28" },
2573 { 1.234321234321234e-27L, "1.23432e-27" },
2574 { 1.234321234321234e-26L, "1.23432e-26" },
2575 { 1.234321234321234e-25L, "1.23432e-25" },
2576 { 1.234321234321234e-24L, "1.23432e-24" },
2577 { 1.234321234321234e-23L, "1.23432e-23" },
2578 { 1.234321234321234e-22L, "1.23432e-22" },
2579 { 1.234321234321234e-21L, "1.23432e-21" },
2580 { 1.234321234321234e-20L, "1.23432e-20" },
2581 { 1.234321234321234e-19L, "1.23432e-19" },
2582 { 1.234321234321234e-18L, "1.23432e-18" },
2583 { 1.234321234321234e-17L, "1.23432e-17" },
2584 { 1.234321234321234e-16L, "1.23432e-16" },
2585 { 1.234321234321234e-15L, "1.23432e-15" },
2586 { 1.234321234321234e-14L, "1.23432e-14" },
2587 { 1.234321234321234e-13L, "1.23432e-13" },
2588 { 1.234321234321234e-12L, "1.23432e-12" },
2589 { 1.234321234321234e-11L, "1.23432e-11" },
2590 { 1.234321234321234e-10L, "1.23432e-10" },
2591 { 1.234321234321234e-9L, "1.23432e-09" },
2592 { 1.234321234321234e-8L, "1.23432e-08" },
2593 { 1.234321234321234e-7L, "1.23432e-07" },
2594 { 1.234321234321234e-6L, "1.23432e-06" },
2595 { 1.234321234321234e-5L, "1.23432e-05" },
2596 { 1.234321234321234e-4L, "0.000123432" },
2597 { 1.234321234321234e-3L, "0.00123432" },
2598 { 1.234321234321234e-2L, "0.0123432" },
2599 { 1.234321234321234e-1L, "0.123432" },
2600 { 1.234321234321234L, "1.23432" },
2601 { 1.234321234321234e1L, "12.3432" },
2602 { 1.234321234321234e2L, "123.432" },
2603 { 1.234321234321234e3L, "1234.32" },
2604 { 1.234321234321234e4L, "12343.2" },
2605 { 1.234321234321234e5L, "123432" },
2606 { 1.234321234321234e6L, "1.23432e+06" },
2607 { 1.234321234321234e7L, "1.23432e+07" },
2608 { 1.234321234321234e8L, "1.23432e+08" },
2609 { 1.234321234321234e9L, "1.23432e+09" },
2610 { 1.234321234321234e10L, "1.23432e+10" },
2611 { 1.234321234321234e11L, "1.23432e+11" },
2612 { 1.234321234321234e12L, "1.23432e+12" },
2613 { 1.234321234321234e13L, "1.23432e+13" },
2614 { 1.234321234321234e14L, "1.23432e+14" },
2615 { 1.234321234321234e15L, "1.23432e+15" },
2616 { 1.234321234321234e16L, "1.23432e+16" },
2617 { 1.234321234321234e17L, "1.23432e+17" },
2618 { 1.234321234321234e18L, "1.23432e+18" },
2619 { 1.234321234321234e19L, "1.23432e+19" },
2620 { 1.234321234321234e20L, "1.23432e+20" },
2621 { 1.234321234321234e21L, "1.23432e+21" },
2622 { 1.234321234321234e22L, "1.23432e+22" },
2623 { 1.234321234321234e23L, "1.23432e+23" },
2624 { 1.234321234321234e24L, "1.23432e+24" },
2625 { 1.234321234321234e25L, "1.23432e+25" },
2626 { 1.234321234321234e26L, "1.23432e+26" },
2627 { 1.234321234321234e27L, "1.23432e+27" },
2628 { 1.234321234321234e28L, "1.23432e+28" },
2629 { 1.234321234321234e29L, "1.23432e+29" },
2630 { 1.234321234321234e30L, "1.23432e+30" },
2631 { 1.234321234321234e31L, "1.23432e+31" },
2632 { 1.234321234321234e32L, "1.23432e+32" },
2633 { 1.234321234321234e33L, "1.23432e+33" },
2634 { 1.234321234321234e34L, "1.23432e+34" },
2635 { 1.234321234321234e35L, "1.23432e+35" },
2636 { 1.234321234321234e36L, "1.23432e+36" }
2639 for (k = 0; k < SIZEOF (data); k++)
2643 my_snprintf (result, sizeof (result), "%Lg", data[k].value);
2644 const char *expected = data[k].string;
2645 ASSERT (strcmp (result, expected) == 0
2646 /* Some implementations produce exponents with 3 digits. */
2647 || (expected[strlen (expected) - 4] == 'e'
2648 && strlen (result) == strlen (expected) + 1
2649 && memcmp (result, expected, strlen (expected) - 2) == 0
2650 && result[strlen (expected) - 2] == '0'
2651 && strcmp (result + strlen (expected) - 1,
2652 expected + strlen (expected) - 2)
2654 ASSERT (retval == strlen (result));
2658 { /* A negative number. */
2661 my_snprintf (result, sizeof (result), "%Lg %d", -0.03125L, 33, 44, 55);
2662 ASSERT (strcmp (result, "-0.03125 33") == 0);
2663 ASSERT (retval == strlen (result));
2666 { /* Positive zero. */
2669 my_snprintf (result, sizeof (result), "%Lg %d", 0.0L, 33, 44, 55);
2670 ASSERT (strcmp (result, "0 33") == 0);
2671 ASSERT (retval == strlen (result));
2674 { /* Negative zero. */
2677 my_snprintf (result, sizeof (result), "%Lg %d", minus_zerol, 33, 44, 55);
2678 if (have_minus_zero ())
2679 ASSERT (strcmp (result, "-0 33") == 0);
2680 ASSERT (retval == strlen (result));
2683 { /* Positive infinity. */
2686 my_snprintf (result, sizeof (result), "%Lg %d", 1.0L / 0.0L, 33, 44, 55);
2687 ASSERT (strcmp (result, "inf 33") == 0
2688 || strcmp (result, "infinity 33") == 0);
2689 ASSERT (retval == strlen (result));
2692 { /* Negative infinity. */
2695 my_snprintf (result, sizeof (result), "%Lg %d", -1.0L / 0.0L, 33, 44, 55);
2696 ASSERT (strcmp (result, "-inf 33") == 0
2697 || strcmp (result, "-infinity 33") == 0);
2698 ASSERT (retval == strlen (result));
2704 my_snprintf (result, sizeof (result), "%Lg %d", NaNl (), 33, 44, 55);
2705 ASSERT (strlen (result) >= 3 + 3
2706 && strisnan (result, 0, strlen (result) - 3, 0)
2707 && strcmp (result + strlen (result) - 3, " 33") == 0);
2708 ASSERT (retval == strlen (result));
2710 #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_))
2712 static union { unsigned int word[4]; long double value; } x =
2713 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2716 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2717 ASSERT (strlen (result) >= 3 + 3
2718 && strisnan (result, 0, strlen (result) - 3, 0)
2719 && strcmp (result + strlen (result) - 3, " 33") == 0);
2720 ASSERT (retval == strlen (result));
2723 /* Signalling NaN. */
2724 static union { unsigned int word[4]; long double value; } x =
2725 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2728 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2729 ASSERT (strlen (result) >= 3 + 3
2730 && strisnan (result, 0, strlen (result) - 3, 0)
2731 && strcmp (result + strlen (result) - 3, " 33") == 0);
2732 ASSERT (retval == strlen (result));
2734 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2735 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2736 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2737 Application Architecture.
2738 Table 5-2 "Floating-Point Register Encodings"
2739 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2742 static union { unsigned int word[4]; long double value; } x =
2743 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2746 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2747 ASSERT (strlen (result) >= 3 + 3
2748 && strisnan (result, 0, strlen (result) - 3, 0)
2749 && strcmp (result + strlen (result) - 3, " 33") == 0);
2750 ASSERT (retval == strlen (result));
2752 { /* Pseudo-Infinity. */
2753 static union { unsigned int word[4]; long double value; } x =
2754 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2757 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2758 ASSERT (strlen (result) >= 3 + 3
2759 && strisnan (result, 0, strlen (result) - 3, 0)
2760 && strcmp (result + strlen (result) - 3, " 33") == 0);
2761 ASSERT (retval == strlen (result));
2763 { /* Pseudo-Zero. */
2764 static union { unsigned int word[4]; long double value; } x =
2765 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2768 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2769 ASSERT (strlen (result) >= 3 + 3
2770 && strisnan (result, 0, strlen (result) - 3, 0)
2771 && strcmp (result + strlen (result) - 3, " 33") == 0);
2772 ASSERT (retval == strlen (result));
2774 { /* Unnormalized number. */
2775 static union { unsigned int word[4]; long double value; } x =
2776 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2779 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2780 ASSERT (strlen (result) >= 3 + 3
2781 && strisnan (result, 0, strlen (result) - 3, 0)
2782 && strcmp (result + strlen (result) - 3, " 33") == 0);
2783 ASSERT (retval == strlen (result));
2785 { /* Pseudo-Denormal. */
2786 static union { unsigned int word[4]; long double value; } x =
2787 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2790 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2791 ASSERT (strlen (result) >= 3 + 3
2792 && strisnan (result, 0, strlen (result) - 3, 0)
2793 && strcmp (result + strlen (result) - 3, " 33") == 0);
2794 ASSERT (retval == strlen (result));
2801 my_snprintf (result, sizeof (result), "%10Lg %d", 1.75L, 33, 44, 55);
2802 ASSERT (strcmp (result, " 1.75 33") == 0);
2803 ASSERT (retval == strlen (result));
2809 my_snprintf (result, sizeof (result), "%-10Lg %d", 1.75L, 33, 44, 55);
2810 ASSERT (strcmp (result, "1.75 33") == 0);
2811 ASSERT (retval == strlen (result));
2814 { /* FLAG_SHOWSIGN. */
2817 my_snprintf (result, sizeof (result), "%+Lg %d", 1.75L, 33, 44, 55);
2818 ASSERT (strcmp (result, "+1.75 33") == 0);
2819 ASSERT (retval == strlen (result));
2825 my_snprintf (result, sizeof (result), "% Lg %d", 1.75L, 33, 44, 55);
2826 ASSERT (strcmp (result, " 1.75 33") == 0);
2827 ASSERT (retval == strlen (result));
2833 my_snprintf (result, sizeof (result), "%#Lg %d", 1.75L, 33, 44, 55);
2834 ASSERT (strcmp (result, "1.75000 33") == 0);
2835 ASSERT (retval == strlen (result));
2841 my_snprintf (result, sizeof (result), "%#.Lg %d", 1.75L, 33, 44, 55);
2842 ASSERT (strcmp (result, "2. 33") == 0);
2843 ASSERT (retval == strlen (result));
2849 my_snprintf (result, sizeof (result), "%#.Lg %d", 9.75L, 33, 44, 55);
2850 ASSERT (strcmp (result, "1.e+01 33") == 0
2851 || strcmp (result, "1.e+001 33") == 0);
2852 ASSERT (retval == strlen (result));
2855 { /* FLAG_ZERO with finite number. */
2858 my_snprintf (result, sizeof (result), "%010Lg %d", 1234.0L, 33, 44, 55);
2859 ASSERT (strcmp (result, "0000001234 33") == 0);
2860 ASSERT (retval == strlen (result));
2863 { /* FLAG_ZERO with infinite number. */
2866 my_snprintf (result, sizeof (result), "%015Lg %d", -1.0L / 0.0L, 33, 44, 55);
2867 ASSERT (strcmp (result, " -inf 33") == 0
2868 || strcmp (result, " -infinity 33") == 0);
2869 ASSERT (retval == strlen (result));
2872 { /* FLAG_ZERO with NaN. */
2875 my_snprintf (result, sizeof (result), "%050Lg %d", NaNl (), 33, 44, 55);
2876 ASSERT (strlen (result) == 50 + 3
2877 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2878 && strcmp (result + strlen (result) - 3, " 33") == 0);
2879 ASSERT (retval == strlen (result));
2885 my_snprintf (result, sizeof (result), "%.Lg %d", 1234.0L, 33, 44, 55);
2886 ASSERT (strcmp (result, "1e+03 33") == 0
2887 || strcmp (result, "1e+003 33") == 0);
2888 ASSERT (retval == strlen (result));
2891 { /* Precision with no rounding. */
2894 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.951L, 33, 44, 55);
2895 ASSERT (strcmp (result, "999.95 33") == 0);
2896 ASSERT (retval == strlen (result));
2899 { /* Precision with rounding. */
2902 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.996L, 33, 44, 55);
2903 ASSERT (strcmp (result, "1000 33") == 0);
2904 ASSERT (retval == strlen (result));
2907 /* Test the support of the %n format directive. */
2913 my_snprintf (result, sizeof (result), "%d %n", 123, &count, 33, 44, 55);
2914 ASSERT (strcmp (result, "123 ") == 0);
2915 ASSERT (retval == strlen (result));
2916 ASSERT (count == 4);
2919 /* Test the support of the POSIX/XSI format strings with positions. */
2924 my_snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
2925 ASSERT (strcmp (result, "55 33") == 0);
2926 ASSERT (retval == strlen (result));
2929 /* Test the support of the grouping flag. */
2934 my_snprintf (result, sizeof (result), "%'d %d", 1234567, 99);
2935 ASSERT (result[strlen (result) - 1] == '9');
2936 ASSERT (retval == strlen (result));
2939 /* Test the support of the left-adjust flag. */
2944 my_snprintf (result, sizeof (result), "a%*sc", -3, "b");
2945 ASSERT (strcmp (result, "ab c") == 0);
2946 ASSERT (retval == strlen (result));
2952 my_snprintf (result, sizeof (result), "a%-*sc", 3, "b");
2953 ASSERT (strcmp (result, "ab c") == 0);
2954 ASSERT (retval == strlen (result));
2960 my_snprintf (result, sizeof (result), "a%-*sc", -3, "b");
2961 ASSERT (strcmp (result, "ab c") == 0);
2962 ASSERT (retval == strlen (result));
2965 /* Test the support of large precision. */
2970 my_snprintf (result, sizeof (result), "%.4000d %d", 1234567, 99);
2972 for (i = 0; i < 4000 - 7; i++)
2973 ASSERT (result[i] == '0');
2974 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2975 ASSERT (retval == strlen (result));
2981 my_snprintf (result, sizeof (result), "%.*d %d", 4000, 1234567, 99);
2983 for (i = 0; i < 4000 - 7; i++)
2984 ASSERT (result[i] == '0');
2985 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2986 ASSERT (retval == strlen (result));
2992 my_snprintf (result, sizeof (result), "%.4000d %d", -1234567, 99);
2994 ASSERT (result[0] == '-');
2995 for (i = 0; i < 4000 - 7; i++)
2996 ASSERT (result[1 + i] == '0');
2997 ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
2998 ASSERT (retval == strlen (result));
3004 my_snprintf (result, sizeof (result), "%.4000u %d", 1234567, 99);
3006 for (i = 0; i < 4000 - 7; i++)
3007 ASSERT (result[i] == '0');
3008 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
3009 ASSERT (retval == strlen (result));
3015 my_snprintf (result, sizeof (result), "%.4000o %d", 1234567, 99);
3017 for (i = 0; i < 4000 - 7; i++)
3018 ASSERT (result[i] == '0');
3019 ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
3020 ASSERT (retval == strlen (result));
3026 my_snprintf (result, sizeof (result), "%.4000x %d", 1234567, 99);
3028 for (i = 0; i < 4000 - 6; i++)
3029 ASSERT (result[i] == '0');
3030 ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
3031 ASSERT (retval == strlen (result));
3037 my_snprintf (result, sizeof (result), "%#.4000x %d", 1234567, 99);
3039 ASSERT (result[0] == '0');
3040 ASSERT (result[1] == 'x');
3041 for (i = 0; i < 4000 - 6; i++)
3042 ASSERT (result[2 + i] == '0');
3043 ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
3044 ASSERT (retval == strlen (result));
3053 for (i = 0; i < sizeof (input) - 1; i++)
3054 input[i] = 'a' + ((1000000 / (i + 1)) % 26);
3056 retval = my_snprintf (result, sizeof (result), "%.4000s %d", input, 99);
3057 ASSERT (memcmp (result, input, 4000) == 0);
3058 ASSERT (strcmp (result + 4000, " 99") == 0);
3059 ASSERT (retval == strlen (result));