1 /* Test of POSIX compatible vsnprintf() and snprintf() functions.
2 Copyright (C) 2007-2008 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
21 /* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0. */
25 static double plus_zero = 0.0;
26 double minus_zero = - plus_zero;
27 return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
30 /* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
31 So we use -zero instead. */
34 /* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0L.
35 So we use -zero instead. */
36 long double zerol = 0.0L;
38 /* Representation of an 80-bit 'long double' as an initializer for a sequence
39 of 'unsigned int' words. */
40 #ifdef WORDS_BIGENDIAN
41 # define LDBL80_WORDS(exponent,manthi,mantlo) \
42 { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
43 ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \
44 (unsigned int) (mantlo) << 16 \
47 # define LDBL80_WORDS(exponent,manthi,mantlo) \
48 { mantlo, manthi, exponent }
52 strmatch (const char *pattern, const char *string)
54 if (strlen (pattern) != strlen (string))
56 for (; *pattern != '\0'; pattern++, string++)
57 if (*pattern != '*' && *string != *pattern)
62 /* Test whether string[start_index..end_index-1] is a valid textual
63 representation of NaN. */
65 strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
67 if (start_index < end_index)
69 if (string[start_index] == '-')
71 if (start_index + 3 <= end_index
72 && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
75 if (start_index == end_index
76 || (string[start_index] == '(' && string[end_index - 1] == ')'))
84 test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
89 /* Test return value convention. */
91 for (size = 0; size <= 8; size++)
95 memcpy (buf, "DEADBEEF", 8);
96 retval = my_snprintf (buf, size, "%d", 12345);
102 ASSERT (memcmp (buf, "12345", size - 1) == 0);
103 ASSERT (buf[size - 1] == '\0');
105 ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
109 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
113 /* Test support of size specifiers as in C99. */
118 my_snprintf (result, sizeof (result), "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
119 ASSERT (strcmp (result, "12345671 33") == 0);
120 ASSERT (retval == strlen (result));
126 my_snprintf (result, sizeof (result), "%zu %d", (size_t) 12345672, 33, 44, 55);
127 ASSERT (strcmp (result, "12345672 33") == 0);
128 ASSERT (retval == strlen (result));
134 my_snprintf (result, sizeof (result), "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
135 ASSERT (strcmp (result, "12345673 33") == 0);
136 ASSERT (retval == strlen (result));
142 my_snprintf (result, sizeof (result), "%Lg %d", (long double) 1.5, 33, 44, 55);
143 ASSERT (strcmp (result, "1.5 33") == 0);
144 ASSERT (retval == strlen (result));
147 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
148 output of floating-point numbers. */
150 { /* A positive number. */
153 my_snprintf (result, sizeof (result), "%a %d", 3.1416015625, 33, 44, 55);
154 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
155 || strcmp (result, "0x3.244p+0 33") == 0
156 || strcmp (result, "0x6.488p-1 33") == 0
157 || strcmp (result, "0xc.91p-2 33") == 0);
158 ASSERT (retval == strlen (result));
161 { /* A negative number. */
164 my_snprintf (result, sizeof (result), "%A %d", -3.1416015625, 33, 44, 55);
165 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
166 || strcmp (result, "-0X3.244P+0 33") == 0
167 || strcmp (result, "-0X6.488P-1 33") == 0
168 || strcmp (result, "-0XC.91P-2 33") == 0);
169 ASSERT (retval == strlen (result));
172 { /* Positive zero. */
175 my_snprintf (result, sizeof (result), "%a %d", 0.0, 33, 44, 55);
176 ASSERT (strcmp (result, "0x0p+0 33") == 0);
177 ASSERT (retval == strlen (result));
180 { /* Negative zero. */
183 my_snprintf (result, sizeof (result), "%a %d", -zerod, 33, 44, 55);
184 if (have_minus_zero ())
185 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
186 ASSERT (retval == strlen (result));
189 { /* Positive infinity. */
192 my_snprintf (result, sizeof (result), "%a %d", 1.0 / 0.0, 33, 44, 55);
193 ASSERT (strcmp (result, "inf 33") == 0);
194 ASSERT (retval == strlen (result));
197 { /* Negative infinity. */
200 my_snprintf (result, sizeof (result), "%a %d", -1.0 / 0.0, 33, 44, 55);
201 ASSERT (strcmp (result, "-inf 33") == 0);
202 ASSERT (retval == strlen (result));
208 my_snprintf (result, sizeof (result), "%a %d", NaNd (), 33, 44, 55);
209 ASSERT (strlen (result) >= 3 + 3
210 && strisnan (result, 0, strlen (result) - 3, 0)
211 && strcmp (result + strlen (result) - 3, " 33") == 0);
212 ASSERT (retval == strlen (result));
215 { /* Rounding near the decimal point. */
218 my_snprintf (result, sizeof (result), "%.0a %d", 1.5, 33, 44, 55);
219 ASSERT (strcmp (result, "0x2p+0 33") == 0
220 || strcmp (result, "0x3p-1 33") == 0
221 || strcmp (result, "0x6p-2 33") == 0
222 || strcmp (result, "0xcp-3 33") == 0);
223 ASSERT (retval == strlen (result));
226 { /* Rounding with precision 0. */
229 my_snprintf (result, sizeof (result), "%.0a %d", 1.51, 33, 44, 55);
230 ASSERT (strcmp (result, "0x2p+0 33") == 0
231 || strcmp (result, "0x3p-1 33") == 0
232 || strcmp (result, "0x6p-2 33") == 0
233 || strcmp (result, "0xcp-3 33") == 0);
234 ASSERT (retval == strlen (result));
237 { /* Rounding with precision 1. */
240 my_snprintf (result, sizeof (result), "%.1a %d", 1.51, 33, 44, 55);
241 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
242 || strcmp (result, "0x3.0p-1 33") == 0
243 || strcmp (result, "0x6.1p-2 33") == 0
244 || strcmp (result, "0xc.1p-3 33") == 0);
245 ASSERT (retval == strlen (result));
248 { /* Rounding with precision 2. */
251 my_snprintf (result, sizeof (result), "%.2a %d", 1.51, 33, 44, 55);
252 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
253 || strcmp (result, "0x3.05p-1 33") == 0
254 || strcmp (result, "0x6.0ap-2 33") == 0
255 || strcmp (result, "0xc.14p-3 33") == 0);
256 ASSERT (retval == strlen (result));
259 { /* Rounding with precision 3. */
262 my_snprintf (result, sizeof (result), "%.3a %d", 1.51, 33, 44, 55);
263 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
264 || strcmp (result, "0x3.052p-1 33") == 0
265 || strcmp (result, "0x6.0a4p-2 33") == 0
266 || strcmp (result, "0xc.148p-3 33") == 0);
267 ASSERT (retval == strlen (result));
270 { /* Rounding can turn a ...FFF into a ...000. */
273 my_snprintf (result, sizeof (result), "%.3a %d", 1.49999, 33, 44, 55);
274 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
275 || strcmp (result, "0x3.000p-1 33") == 0
276 || strcmp (result, "0x6.000p-2 33") == 0
277 || strcmp (result, "0xc.000p-3 33") == 0);
278 ASSERT (retval == strlen (result));
281 { /* Rounding can turn a ...FFF into a ...000.
282 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
285 my_snprintf (result, sizeof (result), "%.1a %d", 1.999, 33, 44, 55);
286 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
287 || strcmp (result, "0x2.0p+0 33") == 0
288 || strcmp (result, "0x4.0p-1 33") == 0
289 || strcmp (result, "0x8.0p-2 33") == 0);
290 ASSERT (retval == strlen (result));
296 my_snprintf (result, sizeof (result), "%10a %d", 1.75, 33, 44, 55);
297 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
298 || strcmp (result, " 0x3.8p-1 33") == 0
299 || strcmp (result, " 0x7p-2 33") == 0
300 || strcmp (result, " 0xep-3 33") == 0);
301 ASSERT (retval == strlen (result));
304 { /* Small precision. */
307 my_snprintf (result, sizeof (result), "%.10a %d", 1.75, 33, 44, 55);
308 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
309 || strcmp (result, "0x3.8000000000p-1 33") == 0
310 || strcmp (result, "0x7.0000000000p-2 33") == 0
311 || strcmp (result, "0xe.0000000000p-3 33") == 0);
312 ASSERT (retval == strlen (result));
315 { /* Large precision. */
318 my_snprintf (result, sizeof (result), "%.50a %d", 1.75, 33, 44, 55);
319 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
320 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
321 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
322 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
323 ASSERT (retval == strlen (result));
329 my_snprintf (result, sizeof (result), "%-10a %d", 1.75, 33, 44, 55);
330 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
331 || strcmp (result, "0x3.8p-1 33") == 0
332 || strcmp (result, "0x7p-2 33") == 0
333 || strcmp (result, "0xep-3 33") == 0);
334 ASSERT (retval == strlen (result));
337 { /* FLAG_SHOWSIGN. */
340 my_snprintf (result, sizeof (result), "%+a %d", 1.75, 33, 44, 55);
341 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
342 || strcmp (result, "+0x3.8p-1 33") == 0
343 || strcmp (result, "+0x7p-2 33") == 0
344 || strcmp (result, "+0xep-3 33") == 0);
345 ASSERT (retval == strlen (result));
351 my_snprintf (result, sizeof (result), "% a %d", 1.75, 33, 44, 55);
352 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
353 || strcmp (result, " 0x3.8p-1 33") == 0
354 || strcmp (result, " 0x7p-2 33") == 0
355 || strcmp (result, " 0xep-3 33") == 0);
356 ASSERT (retval == strlen (result));
362 my_snprintf (result, sizeof (result), "%#a %d", 1.75, 33, 44, 55);
363 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
364 || strcmp (result, "0x3.8p-1 33") == 0
365 || strcmp (result, "0x7.p-2 33") == 0
366 || strcmp (result, "0xe.p-3 33") == 0);
367 ASSERT (retval == strlen (result));
373 my_snprintf (result, sizeof (result), "%#a %d", 1.0, 33, 44, 55);
374 ASSERT (strcmp (result, "0x1.p+0 33") == 0
375 || strcmp (result, "0x2.p-1 33") == 0
376 || strcmp (result, "0x4.p-2 33") == 0
377 || strcmp (result, "0x8.p-3 33") == 0);
378 ASSERT (retval == strlen (result));
381 { /* FLAG_ZERO with finite number. */
384 my_snprintf (result, sizeof (result), "%010a %d", 1.75, 33, 44, 55);
385 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
386 || strcmp (result, "0x003.8p-1 33") == 0
387 || strcmp (result, "0x00007p-2 33") == 0
388 || strcmp (result, "0x0000ep-3 33") == 0);
389 ASSERT (retval == strlen (result));
392 { /* FLAG_ZERO with infinite number. */
395 my_snprintf (result, sizeof (result), "%010a %d", 1.0 / 0.0, 33, 44, 55);
396 /* "0000000inf 33" is not a valid result; see
397 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
398 ASSERT (strcmp (result, " inf 33") == 0);
399 ASSERT (retval == strlen (result));
402 { /* FLAG_ZERO with NaN. */
405 my_snprintf (result, sizeof (result), "%050a %d", NaNd (), 33, 44, 55);
406 /* "0000000nan 33" is not a valid result; see
407 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
408 ASSERT (strlen (result) == 50 + 3
409 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
410 && strcmp (result + strlen (result) - 3, " 33") == 0);
411 ASSERT (retval == strlen (result));
414 { /* A positive number. */
417 my_snprintf (result, sizeof (result), "%La %d", 3.1416015625L, 33, 44, 55);
418 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
419 || strcmp (result, "0x3.244p+0 33") == 0
420 || strcmp (result, "0x6.488p-1 33") == 0
421 || strcmp (result, "0xc.91p-2 33") == 0);
422 ASSERT (retval == strlen (result));
425 { /* A negative number. */
428 my_snprintf (result, sizeof (result), "%LA %d", -3.1416015625L, 33, 44, 55);
429 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
430 || strcmp (result, "-0X3.244P+0 33") == 0
431 || strcmp (result, "-0X6.488P-1 33") == 0
432 || strcmp (result, "-0XC.91P-2 33") == 0);
433 ASSERT (retval == strlen (result));
436 { /* Positive zero. */
439 my_snprintf (result, sizeof (result), "%La %d", 0.0L, 33, 44, 55);
440 ASSERT (strcmp (result, "0x0p+0 33") == 0);
441 ASSERT (retval == strlen (result));
444 { /* Negative zero. */
447 my_snprintf (result, sizeof (result), "%La %d", -zerol, 33, 44, 55);
448 if (have_minus_zero ())
449 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
450 ASSERT (retval == strlen (result));
453 { /* Positive infinity. */
456 my_snprintf (result, sizeof (result), "%La %d", 1.0L / 0.0L, 33, 44, 55);
457 ASSERT (strcmp (result, "inf 33") == 0);
458 ASSERT (retval == strlen (result));
461 { /* Negative infinity. */
464 my_snprintf (result, sizeof (result), "%La %d", -1.0L / 0.0L, 33, 44, 55);
465 ASSERT (strcmp (result, "-inf 33") == 0);
466 ASSERT (retval == strlen (result));
472 my_snprintf (result, sizeof (result), "%La %d", NaNl (), 33, 44, 55);
473 ASSERT (strlen (result) >= 3 + 3
474 && strisnan (result, 0, strlen (result) - 3, 0)
475 && strcmp (result + strlen (result) - 3, " 33") == 0);
476 ASSERT (retval == strlen (result));
478 #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
480 static union { unsigned int word[4]; long double value; } x =
481 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
484 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
485 ASSERT (strlen (result) >= 3 + 3
486 && strisnan (result, 0, strlen (result) - 3, 0)
487 && strcmp (result + strlen (result) - 3, " 33") == 0);
488 ASSERT (retval == strlen (result));
491 /* Signalling NaN. */
492 static union { unsigned int word[4]; long double value; } x =
493 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
496 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
497 ASSERT (strlen (result) >= 3 + 3
498 && strisnan (result, 0, strlen (result) - 3, 0)
499 && strcmp (result + strlen (result) - 3, " 33") == 0);
500 ASSERT (retval == strlen (result));
502 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
503 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
504 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
505 Application Architecture.
506 Table 5-2 "Floating-Point Register Encodings"
507 Figure 5-6 "Memory to Floating-Point Register Data Translation"
510 static union { unsigned int word[4]; long double value; } x =
511 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
514 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
515 ASSERT (strlen (result) >= 3 + 3
516 && strisnan (result, 0, strlen (result) - 3, 0)
517 && strcmp (result + strlen (result) - 3, " 33") == 0);
518 ASSERT (retval == strlen (result));
520 { /* Pseudo-Infinity. */
521 static union { unsigned int word[4]; long double value; } x =
522 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
525 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
526 ASSERT (strlen (result) >= 3 + 3
527 && strisnan (result, 0, strlen (result) - 3, 0)
528 && strcmp (result + strlen (result) - 3, " 33") == 0);
529 ASSERT (retval == strlen (result));
532 static union { unsigned int word[4]; long double value; } x =
533 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
536 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
537 ASSERT (strlen (result) >= 3 + 3
538 && strisnan (result, 0, strlen (result) - 3, 0)
539 && strcmp (result + strlen (result) - 3, " 33") == 0);
540 ASSERT (retval == strlen (result));
542 { /* Unnormalized number. */
543 static union { unsigned int word[4]; long double value; } x =
544 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
547 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
548 ASSERT (strlen (result) >= 3 + 3
549 && strisnan (result, 0, strlen (result) - 3, 0)
550 && strcmp (result + strlen (result) - 3, " 33") == 0);
551 ASSERT (retval == strlen (result));
553 { /* Pseudo-Denormal. */
554 static union { unsigned int word[4]; long double value; } x =
555 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
558 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
559 ASSERT (strlen (result) >= 3 + 3
560 && strisnan (result, 0, strlen (result) - 3, 0)
561 && strcmp (result + strlen (result) - 3, " 33") == 0);
562 ASSERT (retval == strlen (result));
566 { /* Rounding near the decimal point. */
569 my_snprintf (result, sizeof (result), "%.0La %d", 1.5L, 33, 44, 55);
570 ASSERT (strcmp (result, "0x2p+0 33") == 0
571 || strcmp (result, "0x3p-1 33") == 0
572 || strcmp (result, "0x6p-2 33") == 0
573 || strcmp (result, "0xcp-3 33") == 0);
574 ASSERT (retval == strlen (result));
577 { /* Rounding with precision 0. */
580 my_snprintf (result, sizeof (result), "%.0La %d", 1.51L, 33, 44, 55);
581 ASSERT (strcmp (result, "0x2p+0 33") == 0
582 || strcmp (result, "0x3p-1 33") == 0
583 || strcmp (result, "0x6p-2 33") == 0
584 || strcmp (result, "0xcp-3 33") == 0);
585 ASSERT (retval == strlen (result));
588 { /* Rounding with precision 1. */
591 my_snprintf (result, sizeof (result), "%.1La %d", 1.51L, 33, 44, 55);
592 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
593 || strcmp (result, "0x3.0p-1 33") == 0
594 || strcmp (result, "0x6.1p-2 33") == 0
595 || strcmp (result, "0xc.1p-3 33") == 0);
596 ASSERT (retval == strlen (result));
599 { /* Rounding with precision 2. */
602 my_snprintf (result, sizeof (result), "%.2La %d", 1.51L, 33, 44, 55);
603 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
604 || strcmp (result, "0x3.05p-1 33") == 0
605 || strcmp (result, "0x6.0ap-2 33") == 0
606 || strcmp (result, "0xc.14p-3 33") == 0);
607 ASSERT (retval == strlen (result));
610 { /* Rounding with precision 3. */
613 my_snprintf (result, sizeof (result), "%.3La %d", 1.51L, 33, 44, 55);
614 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
615 || strcmp (result, "0x3.052p-1 33") == 0
616 || strcmp (result, "0x6.0a4p-2 33") == 0
617 || strcmp (result, "0xc.148p-3 33") == 0);
618 ASSERT (retval == strlen (result));
621 { /* Rounding can turn a ...FFF into a ...000. */
624 my_snprintf (result, sizeof (result), "%.3La %d", 1.49999L, 33, 44, 55);
625 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
626 || strcmp (result, "0x3.000p-1 33") == 0
627 || strcmp (result, "0x6.000p-2 33") == 0
628 || strcmp (result, "0xc.000p-3 33") == 0);
629 ASSERT (retval == strlen (result));
632 { /* Rounding can turn a ...FFF into a ...000.
633 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
634 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
637 my_snprintf (result, sizeof (result), "%.1La %d", 1.999L, 33, 44, 55);
638 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
639 || strcmp (result, "0x2.0p+0 33") == 0
640 || strcmp (result, "0x4.0p-1 33") == 0
641 || strcmp (result, "0x8.0p-2 33") == 0);
642 ASSERT (retval == strlen (result));
648 my_snprintf (result, sizeof (result), "%10La %d", 1.75L, 33, 44, 55);
649 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
650 || strcmp (result, " 0x3.8p-1 33") == 0
651 || strcmp (result, " 0x7p-2 33") == 0
652 || strcmp (result, " 0xep-3 33") == 0);
653 ASSERT (retval == strlen (result));
656 { /* Small precision. */
659 my_snprintf (result, sizeof (result), "%.10La %d", 1.75L, 33, 44, 55);
660 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
661 || strcmp (result, "0x3.8000000000p-1 33") == 0
662 || strcmp (result, "0x7.0000000000p-2 33") == 0
663 || strcmp (result, "0xe.0000000000p-3 33") == 0);
664 ASSERT (retval == strlen (result));
667 { /* Large precision. */
670 my_snprintf (result, sizeof (result), "%.50La %d", 1.75L, 33, 44, 55);
671 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
672 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
673 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
674 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
675 ASSERT (retval == strlen (result));
681 my_snprintf (result, sizeof (result), "%-10La %d", 1.75L, 33, 44, 55);
682 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
683 || strcmp (result, "0x3.8p-1 33") == 0
684 || strcmp (result, "0x7p-2 33") == 0
685 || strcmp (result, "0xep-3 33") == 0);
686 ASSERT (retval == strlen (result));
689 { /* FLAG_SHOWSIGN. */
692 my_snprintf (result, sizeof (result), "%+La %d", 1.75L, 33, 44, 55);
693 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
694 || strcmp (result, "+0x3.8p-1 33") == 0
695 || strcmp (result, "+0x7p-2 33") == 0
696 || strcmp (result, "+0xep-3 33") == 0);
697 ASSERT (retval == strlen (result));
703 my_snprintf (result, sizeof (result), "% La %d", 1.75L, 33, 44, 55);
704 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
705 || strcmp (result, " 0x3.8p-1 33") == 0
706 || strcmp (result, " 0x7p-2 33") == 0
707 || strcmp (result, " 0xep-3 33") == 0);
708 ASSERT (retval == strlen (result));
714 my_snprintf (result, sizeof (result), "%#La %d", 1.75L, 33, 44, 55);
715 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
716 || strcmp (result, "0x3.8p-1 33") == 0
717 || strcmp (result, "0x7.p-2 33") == 0
718 || strcmp (result, "0xe.p-3 33") == 0);
719 ASSERT (retval == strlen (result));
725 my_snprintf (result, sizeof (result), "%#La %d", 1.0L, 33, 44, 55);
726 ASSERT (strcmp (result, "0x1.p+0 33") == 0
727 || strcmp (result, "0x2.p-1 33") == 0
728 || strcmp (result, "0x4.p-2 33") == 0
729 || strcmp (result, "0x8.p-3 33") == 0);
730 ASSERT (retval == strlen (result));
733 { /* FLAG_ZERO with finite number. */
736 my_snprintf (result, sizeof (result), "%010La %d", 1.75L, 33, 44, 55);
737 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
738 || strcmp (result, "0x003.8p-1 33") == 0
739 || strcmp (result, "0x00007p-2 33") == 0
740 || strcmp (result, "0x0000ep-3 33") == 0);
741 ASSERT (retval == strlen (result));
744 { /* FLAG_ZERO with infinite number. */
747 my_snprintf (result, sizeof (result), "%010La %d", 1.0L / 0.0L, 33, 44, 55);
748 /* "0000000inf 33" is not a valid result; see
749 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
750 ASSERT (strcmp (result, " inf 33") == 0);
751 ASSERT (retval == strlen (result));
754 { /* FLAG_ZERO with NaN. */
757 my_snprintf (result, sizeof (result), "%050La %d", NaNl (), 33, 44, 55);
758 /* "0000000nan 33" is not a valid result; see
759 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
760 ASSERT (strlen (result) == 50 + 3
761 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
762 && strcmp (result + strlen (result) - 3, " 33") == 0);
763 ASSERT (retval == strlen (result));
766 /* Test the support of the %f format directive. */
768 { /* A positive number. */
771 my_snprintf (result, sizeof (result), "%f %d", 12.75, 33, 44, 55);
772 ASSERT (strcmp (result, "12.750000 33") == 0);
773 ASSERT (retval == strlen (result));
776 { /* A larger positive number. */
779 my_snprintf (result, sizeof (result), "%f %d", 1234567.0, 33, 44, 55);
780 ASSERT (strcmp (result, "1234567.000000 33") == 0);
781 ASSERT (retval == strlen (result));
784 { /* Small and large positive numbers. */
785 static struct { double value; const char *string; } data[] =
787 { 1.234321234321234e-37, "0.000000" },
788 { 1.234321234321234e-36, "0.000000" },
789 { 1.234321234321234e-35, "0.000000" },
790 { 1.234321234321234e-34, "0.000000" },
791 { 1.234321234321234e-33, "0.000000" },
792 { 1.234321234321234e-32, "0.000000" },
793 { 1.234321234321234e-31, "0.000000" },
794 { 1.234321234321234e-30, "0.000000" },
795 { 1.234321234321234e-29, "0.000000" },
796 { 1.234321234321234e-28, "0.000000" },
797 { 1.234321234321234e-27, "0.000000" },
798 { 1.234321234321234e-26, "0.000000" },
799 { 1.234321234321234e-25, "0.000000" },
800 { 1.234321234321234e-24, "0.000000" },
801 { 1.234321234321234e-23, "0.000000" },
802 { 1.234321234321234e-22, "0.000000" },
803 { 1.234321234321234e-21, "0.000000" },
804 { 1.234321234321234e-20, "0.000000" },
805 { 1.234321234321234e-19, "0.000000" },
806 { 1.234321234321234e-18, "0.000000" },
807 { 1.234321234321234e-17, "0.000000" },
808 { 1.234321234321234e-16, "0.000000" },
809 { 1.234321234321234e-15, "0.000000" },
810 { 1.234321234321234e-14, "0.000000" },
811 { 1.234321234321234e-13, "0.000000" },
812 { 1.234321234321234e-12, "0.000000" },
813 { 1.234321234321234e-11, "0.000000" },
814 { 1.234321234321234e-10, "0.000000" },
815 { 1.234321234321234e-9, "0.000000" },
816 { 1.234321234321234e-8, "0.000000" },
817 { 1.234321234321234e-7, "0.000000" },
818 { 1.234321234321234e-6, "0.000001" },
819 { 1.234321234321234e-5, "0.000012" },
820 { 1.234321234321234e-4, "0.000123" },
821 { 1.234321234321234e-3, "0.001234" },
822 { 1.234321234321234e-2, "0.012343" },
823 { 1.234321234321234e-1, "0.123432" },
824 { 1.234321234321234, "1.234321" },
825 { 1.234321234321234e1, "12.343212" },
826 { 1.234321234321234e2, "123.432123" },
827 { 1.234321234321234e3, "1234.321234" },
828 { 1.234321234321234e4, "12343.212343" },
829 { 1.234321234321234e5, "123432.123432" },
830 { 1.234321234321234e6, "1234321.234321" },
831 { 1.234321234321234e7, "12343212.343212" },
832 { 1.234321234321234e8, "123432123.432123" },
833 { 1.234321234321234e9, "1234321234.321234" },
834 { 1.234321234321234e10, "12343212343.2123**" },
835 { 1.234321234321234e11, "123432123432.123***" },
836 { 1.234321234321234e12, "1234321234321.23****" },
837 { 1.234321234321234e13, "12343212343212.3*****" },
838 { 1.234321234321234e14, "123432123432123.******" },
839 { 1.234321234321234e15, "1234321234321234.000000" },
840 { 1.234321234321234e16, "123432123432123**.000000" },
841 { 1.234321234321234e17, "123432123432123***.000000" },
842 { 1.234321234321234e18, "123432123432123****.000000" },
843 { 1.234321234321234e19, "123432123432123*****.000000" },
844 { 1.234321234321234e20, "123432123432123******.000000" },
845 { 1.234321234321234e21, "123432123432123*******.000000" },
846 { 1.234321234321234e22, "123432123432123********.000000" },
847 { 1.234321234321234e23, "123432123432123*********.000000" },
848 { 1.234321234321234e24, "123432123432123**********.000000" },
849 { 1.234321234321234e25, "123432123432123***********.000000" },
850 { 1.234321234321234e26, "123432123432123************.000000" },
851 { 1.234321234321234e27, "123432123432123*************.000000" },
852 { 1.234321234321234e28, "123432123432123**************.000000" },
853 { 1.234321234321234e29, "123432123432123***************.000000" },
854 { 1.234321234321234e30, "123432123432123****************.000000" },
855 { 1.234321234321234e31, "123432123432123*****************.000000" },
856 { 1.234321234321234e32, "123432123432123******************.000000" },
857 { 1.234321234321234e33, "123432123432123*******************.000000" },
858 { 1.234321234321234e34, "123432123432123********************.000000" },
859 { 1.234321234321234e35, "123432123432123*********************.000000" },
860 { 1.234321234321234e36, "123432123432123**********************.000000" }
863 for (k = 0; k < SIZEOF (data); k++)
867 my_snprintf (result, sizeof (result), "%f", data[k].value);
868 ASSERT (strmatch (data[k].string, result));
869 ASSERT (retval == strlen (result));
873 { /* A negative number. */
876 my_snprintf (result, sizeof (result), "%f %d", -0.03125, 33, 44, 55);
877 ASSERT (strcmp (result, "-0.031250 33") == 0);
878 ASSERT (retval == strlen (result));
881 { /* Positive zero. */
884 my_snprintf (result, sizeof (result), "%f %d", 0.0, 33, 44, 55);
885 ASSERT (strcmp (result, "0.000000 33") == 0);
886 ASSERT (retval == strlen (result));
889 { /* Negative zero. */
892 my_snprintf (result, sizeof (result), "%f %d", -zerod, 33, 44, 55);
893 if (have_minus_zero ())
894 ASSERT (strcmp (result, "-0.000000 33") == 0);
895 ASSERT (retval == strlen (result));
898 { /* Positive infinity. */
901 my_snprintf (result, sizeof (result), "%f %d", 1.0 / 0.0, 33, 44, 55);
902 ASSERT (strcmp (result, "inf 33") == 0
903 || strcmp (result, "infinity 33") == 0);
904 ASSERT (retval == strlen (result));
907 { /* Negative infinity. */
910 my_snprintf (result, sizeof (result), "%f %d", -1.0 / 0.0, 33, 44, 55);
911 ASSERT (strcmp (result, "-inf 33") == 0
912 || strcmp (result, "-infinity 33") == 0);
913 ASSERT (retval == strlen (result));
919 my_snprintf (result, sizeof (result), "%f %d", NaNd (), 33, 44, 55);
920 ASSERT (strlen (result) >= 3 + 3
921 && strisnan (result, 0, strlen (result) - 3, 0)
922 && strcmp (result + strlen (result) - 3, " 33") == 0);
923 ASSERT (retval == strlen (result));
929 my_snprintf (result, sizeof (result), "%10f %d", 1.75, 33, 44, 55);
930 ASSERT (strcmp (result, " 1.750000 33") == 0);
931 ASSERT (retval == strlen (result));
937 my_snprintf (result, sizeof (result), "%-10f %d", 1.75, 33, 44, 55);
938 ASSERT (strcmp (result, "1.750000 33") == 0);
939 ASSERT (retval == strlen (result));
942 { /* FLAG_SHOWSIGN. */
945 my_snprintf (result, sizeof (result), "%+f %d", 1.75, 33, 44, 55);
946 ASSERT (strcmp (result, "+1.750000 33") == 0);
947 ASSERT (retval == strlen (result));
953 my_snprintf (result, sizeof (result), "% f %d", 1.75, 33, 44, 55);
954 ASSERT (strcmp (result, " 1.750000 33") == 0);
955 ASSERT (retval == strlen (result));
961 my_snprintf (result, sizeof (result), "%#f %d", 1.75, 33, 44, 55);
962 ASSERT (strcmp (result, "1.750000 33") == 0);
963 ASSERT (retval == strlen (result));
969 my_snprintf (result, sizeof (result), "%#.f %d", 1.75, 33, 44, 55);
970 ASSERT (strcmp (result, "2. 33") == 0);
971 ASSERT (retval == strlen (result));
974 { /* FLAG_ZERO with finite number. */
977 my_snprintf (result, sizeof (result), "%015f %d", 1234.0, 33, 44, 55);
978 ASSERT (strcmp (result, "00001234.000000 33") == 0);
979 ASSERT (retval == strlen (result));
982 { /* FLAG_ZERO with infinite number. */
985 my_snprintf (result, sizeof (result), "%015f %d", -1.0 / 0.0, 33, 44, 55);
986 ASSERT (strcmp (result, " -inf 33") == 0
987 || strcmp (result, " -infinity 33") == 0);
988 ASSERT (retval == strlen (result));
991 { /* FLAG_ZERO with NaN. */
994 my_snprintf (result, sizeof (result), "%050f %d", NaNd (), 33, 44, 55);
995 ASSERT (strlen (result) == 50 + 3
996 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
997 && strcmp (result + strlen (result) - 3, " 33") == 0);
998 ASSERT (retval == strlen (result));
1004 my_snprintf (result, sizeof (result), "%.f %d", 1234.0, 33, 44, 55);
1005 ASSERT (strcmp (result, "1234 33") == 0);
1006 ASSERT (retval == strlen (result));
1009 { /* Precision with no rounding. */
1012 my_snprintf (result, sizeof (result), "%.2f %d", 999.951, 33, 44, 55);
1013 ASSERT (strcmp (result, "999.95 33") == 0);
1014 ASSERT (retval == strlen (result));
1017 { /* Precision with rounding. */
1020 my_snprintf (result, sizeof (result), "%.2f %d", 999.996, 33, 44, 55);
1021 ASSERT (strcmp (result, "1000.00 33") == 0);
1022 ASSERT (retval == strlen (result));
1025 { /* A positive number. */
1028 my_snprintf (result, sizeof (result), "%Lf %d", 12.75L, 33, 44, 55);
1029 ASSERT (strcmp (result, "12.750000 33") == 0);
1030 ASSERT (retval == strlen (result));
1033 { /* A larger positive number. */
1036 my_snprintf (result, sizeof (result), "%Lf %d", 1234567.0L, 33, 44, 55);
1037 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1038 ASSERT (retval == strlen (result));
1041 { /* Small and large positive numbers. */
1042 static struct { long double value; const char *string; } data[] =
1044 { 1.234321234321234e-37L, "0.000000" },
1045 { 1.234321234321234e-36L, "0.000000" },
1046 { 1.234321234321234e-35L, "0.000000" },
1047 { 1.234321234321234e-34L, "0.000000" },
1048 { 1.234321234321234e-33L, "0.000000" },
1049 { 1.234321234321234e-32L, "0.000000" },
1050 { 1.234321234321234e-31L, "0.000000" },
1051 { 1.234321234321234e-30L, "0.000000" },
1052 { 1.234321234321234e-29L, "0.000000" },
1053 { 1.234321234321234e-28L, "0.000000" },
1054 { 1.234321234321234e-27L, "0.000000" },
1055 { 1.234321234321234e-26L, "0.000000" },
1056 { 1.234321234321234e-25L, "0.000000" },
1057 { 1.234321234321234e-24L, "0.000000" },
1058 { 1.234321234321234e-23L, "0.000000" },
1059 { 1.234321234321234e-22L, "0.000000" },
1060 { 1.234321234321234e-21L, "0.000000" },
1061 { 1.234321234321234e-20L, "0.000000" },
1062 { 1.234321234321234e-19L, "0.000000" },
1063 { 1.234321234321234e-18L, "0.000000" },
1064 { 1.234321234321234e-17L, "0.000000" },
1065 { 1.234321234321234e-16L, "0.000000" },
1066 { 1.234321234321234e-15L, "0.000000" },
1067 { 1.234321234321234e-14L, "0.000000" },
1068 { 1.234321234321234e-13L, "0.000000" },
1069 { 1.234321234321234e-12L, "0.000000" },
1070 { 1.234321234321234e-11L, "0.000000" },
1071 { 1.234321234321234e-10L, "0.000000" },
1072 { 1.234321234321234e-9L, "0.000000" },
1073 { 1.234321234321234e-8L, "0.000000" },
1074 { 1.234321234321234e-7L, "0.000000" },
1075 { 1.234321234321234e-6L, "0.000001" },
1076 { 1.234321234321234e-5L, "0.000012" },
1077 { 1.234321234321234e-4L, "0.000123" },
1078 { 1.234321234321234e-3L, "0.001234" },
1079 { 1.234321234321234e-2L, "0.012343" },
1080 { 1.234321234321234e-1L, "0.123432" },
1081 { 1.234321234321234L, "1.234321" },
1082 { 1.234321234321234e1L, "12.343212" },
1083 { 1.234321234321234e2L, "123.432123" },
1084 { 1.234321234321234e3L, "1234.321234" },
1085 { 1.234321234321234e4L, "12343.212343" },
1086 { 1.234321234321234e5L, "123432.123432" },
1087 { 1.234321234321234e6L, "1234321.234321" },
1088 { 1.234321234321234e7L, "12343212.343212" },
1089 { 1.234321234321234e8L, "123432123.432123" },
1090 { 1.234321234321234e9L, "1234321234.321234" },
1091 { 1.234321234321234e10L, "12343212343.2123**" },
1092 { 1.234321234321234e11L, "123432123432.123***" },
1093 { 1.234321234321234e12L, "1234321234321.23****" },
1094 { 1.234321234321234e13L, "12343212343212.3*****" },
1095 { 1.234321234321234e14L, "123432123432123.******" },
1096 { 1.234321234321234e15L, "1234321234321234.000000" },
1097 { 1.234321234321234e16L, "123432123432123**.000000" },
1098 { 1.234321234321234e17L, "123432123432123***.000000" },
1099 { 1.234321234321234e18L, "123432123432123****.000000" },
1100 { 1.234321234321234e19L, "123432123432123*****.000000" },
1101 { 1.234321234321234e20L, "123432123432123******.000000" },
1102 { 1.234321234321234e21L, "123432123432123*******.000000" },
1103 { 1.234321234321234e22L, "123432123432123********.000000" },
1104 { 1.234321234321234e23L, "123432123432123*********.000000" },
1105 { 1.234321234321234e24L, "123432123432123**********.000000" },
1106 { 1.234321234321234e25L, "123432123432123***********.000000" },
1107 { 1.234321234321234e26L, "123432123432123************.000000" },
1108 { 1.234321234321234e27L, "123432123432123*************.000000" },
1109 { 1.234321234321234e28L, "123432123432123**************.000000" },
1110 { 1.234321234321234e29L, "123432123432123***************.000000" },
1111 { 1.234321234321234e30L, "123432123432123****************.000000" },
1112 { 1.234321234321234e31L, "123432123432123*****************.000000" },
1113 { 1.234321234321234e32L, "123432123432123******************.000000" },
1114 { 1.234321234321234e33L, "123432123432123*******************.000000" },
1115 { 1.234321234321234e34L, "123432123432123********************.000000" },
1116 { 1.234321234321234e35L, "123432123432123*********************.000000" },
1117 { 1.234321234321234e36L, "123432123432123**********************.000000" }
1120 for (k = 0; k < SIZEOF (data); k++)
1124 my_snprintf (result, sizeof (result), "%Lf", data[k].value);
1125 ASSERT (strmatch (data[k].string, result));
1126 ASSERT (retval == strlen (result));
1130 { /* A negative number. */
1133 my_snprintf (result, sizeof (result), "%Lf %d", -0.03125L, 33, 44, 55);
1134 ASSERT (strcmp (result, "-0.031250 33") == 0);
1135 ASSERT (retval == strlen (result));
1138 { /* Positive zero. */
1141 my_snprintf (result, sizeof (result), "%Lf %d", 0.0L, 33, 44, 55);
1142 ASSERT (strcmp (result, "0.000000 33") == 0);
1143 ASSERT (retval == strlen (result));
1146 { /* Negative zero. */
1149 my_snprintf (result, sizeof (result), "%Lf %d", -zerol, 33, 44, 55);
1150 if (have_minus_zero ())
1151 ASSERT (strcmp (result, "-0.000000 33") == 0);
1152 ASSERT (retval == strlen (result));
1155 { /* Positive infinity. */
1158 my_snprintf (result, sizeof (result), "%Lf %d", 1.0L / 0.0L, 33, 44, 55);
1159 ASSERT (strcmp (result, "inf 33") == 0
1160 || strcmp (result, "infinity 33") == 0);
1161 ASSERT (retval == strlen (result));
1164 { /* Negative infinity. */
1167 my_snprintf (result, sizeof (result), "%Lf %d", -1.0L / 0.0L, 33, 44, 55);
1168 ASSERT (strcmp (result, "-inf 33") == 0
1169 || strcmp (result, "-infinity 33") == 0);
1170 ASSERT (retval == strlen (result));
1176 my_snprintf (result, sizeof (result), "%Lf %d", NaNl (), 33, 44, 55);
1177 ASSERT (strlen (result) >= 3 + 3
1178 && strisnan (result, 0, strlen (result) - 3, 0)
1179 && strcmp (result + strlen (result) - 3, " 33") == 0);
1180 ASSERT (retval == strlen (result));
1182 #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_))
1184 static union { unsigned int word[4]; long double value; } x =
1185 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
1188 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1189 ASSERT (strlen (result) >= 3 + 3
1190 && strisnan (result, 0, strlen (result) - 3, 0)
1191 && strcmp (result + strlen (result) - 3, " 33") == 0);
1192 ASSERT (retval == strlen (result));
1195 /* Signalling NaN. */
1196 static union { unsigned int word[4]; long double value; } x =
1197 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
1200 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1201 ASSERT (strlen (result) >= 3 + 3
1202 && strisnan (result, 0, strlen (result) - 3, 0)
1203 && strcmp (result + strlen (result) - 3, " 33") == 0);
1204 ASSERT (retval == strlen (result));
1206 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
1207 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
1208 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
1209 Application Architecture.
1210 Table 5-2 "Floating-Point Register Encodings"
1211 Figure 5-6 "Memory to Floating-Point Register Data Translation"
1214 static union { unsigned int word[4]; long double value; } x =
1215 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
1218 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1219 ASSERT (strlen (result) >= 3 + 3
1220 && strisnan (result, 0, strlen (result) - 3, 0)
1221 && strcmp (result + strlen (result) - 3, " 33") == 0);
1222 ASSERT (retval == strlen (result));
1224 { /* Pseudo-Infinity. */
1225 static union { unsigned int word[4]; long double value; } x =
1226 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
1229 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1230 ASSERT (strlen (result) >= 3 + 3
1231 && strisnan (result, 0, strlen (result) - 3, 0)
1232 && strcmp (result + strlen (result) - 3, " 33") == 0);
1233 ASSERT (retval == strlen (result));
1235 { /* Pseudo-Zero. */
1236 static union { unsigned int word[4]; long double value; } x =
1237 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
1240 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1241 ASSERT (strlen (result) >= 3 + 3
1242 && strisnan (result, 0, strlen (result) - 3, 0)
1243 && strcmp (result + strlen (result) - 3, " 33") == 0);
1244 ASSERT (retval == strlen (result));
1246 { /* Unnormalized number. */
1247 static union { unsigned int word[4]; long double value; } x =
1248 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
1251 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1252 ASSERT (strlen (result) >= 3 + 3
1253 && strisnan (result, 0, strlen (result) - 3, 0)
1254 && strcmp (result + strlen (result) - 3, " 33") == 0);
1255 ASSERT (retval == strlen (result));
1257 { /* Pseudo-Denormal. */
1258 static union { unsigned int word[4]; long double value; } x =
1259 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
1262 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1263 ASSERT (strlen (result) >= 3 + 3
1264 && strisnan (result, 0, strlen (result) - 3, 0)
1265 && strcmp (result + strlen (result) - 3, " 33") == 0);
1266 ASSERT (retval == strlen (result));
1273 my_snprintf (result, sizeof (result), "%10Lf %d", 1.75L, 33, 44, 55);
1274 ASSERT (strcmp (result, " 1.750000 33") == 0);
1275 ASSERT (retval == strlen (result));
1281 my_snprintf (result, sizeof (result), "%-10Lf %d", 1.75L, 33, 44, 55);
1282 ASSERT (strcmp (result, "1.750000 33") == 0);
1283 ASSERT (retval == strlen (result));
1286 { /* FLAG_SHOWSIGN. */
1289 my_snprintf (result, sizeof (result), "%+Lf %d", 1.75L, 33, 44, 55);
1290 ASSERT (strcmp (result, "+1.750000 33") == 0);
1291 ASSERT (retval == strlen (result));
1297 my_snprintf (result, sizeof (result), "% Lf %d", 1.75L, 33, 44, 55);
1298 ASSERT (strcmp (result, " 1.750000 33") == 0);
1299 ASSERT (retval == strlen (result));
1305 my_snprintf (result, sizeof (result), "%#Lf %d", 1.75L, 33, 44, 55);
1306 ASSERT (strcmp (result, "1.750000 33") == 0);
1307 ASSERT (retval == strlen (result));
1313 my_snprintf (result, sizeof (result), "%#.Lf %d", 1.75L, 33, 44, 55);
1314 ASSERT (strcmp (result, "2. 33") == 0);
1315 ASSERT (retval == strlen (result));
1318 { /* FLAG_ZERO with finite number. */
1321 my_snprintf (result, sizeof (result), "%015Lf %d", 1234.0L, 33, 44, 55);
1322 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1323 ASSERT (retval == strlen (result));
1326 { /* FLAG_ZERO with infinite number. */
1329 my_snprintf (result, sizeof (result), "%015Lf %d", -1.0L / 0.0L, 33, 44, 55);
1330 ASSERT (strcmp (result, " -inf 33") == 0
1331 || strcmp (result, " -infinity 33") == 0);
1332 ASSERT (retval == strlen (result));
1335 { /* FLAG_ZERO with NaN. */
1338 my_snprintf (result, sizeof (result), "%050Lf %d", NaNl (), 33, 44, 55);
1339 ASSERT (strlen (result) == 50 + 3
1340 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1341 && strcmp (result + strlen (result) - 3, " 33") == 0);
1342 ASSERT (retval == strlen (result));
1348 my_snprintf (result, sizeof (result), "%.Lf %d", 1234.0L, 33, 44, 55);
1349 ASSERT (strcmp (result, "1234 33") == 0);
1350 ASSERT (retval == strlen (result));
1353 { /* Precision with no rounding. */
1356 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.951L, 33, 44, 55);
1357 ASSERT (strcmp (result, "999.95 33") == 0);
1358 ASSERT (retval == strlen (result));
1361 { /* Precision with rounding. */
1364 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.996L, 33, 44, 55);
1365 ASSERT (strcmp (result, "1000.00 33") == 0);
1366 ASSERT (retval == strlen (result));
1369 /* Test the support of the %F format directive. */
1371 { /* A positive number. */
1374 my_snprintf (result, sizeof (result), "%F %d", 12.75, 33, 44, 55);
1375 ASSERT (strcmp (result, "12.750000 33") == 0);
1376 ASSERT (retval == strlen (result));
1379 { /* A larger positive number. */
1382 my_snprintf (result, sizeof (result), "%F %d", 1234567.0, 33, 44, 55);
1383 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1384 ASSERT (retval == strlen (result));
1387 { /* A negative number. */
1390 my_snprintf (result, sizeof (result), "%F %d", -0.03125, 33, 44, 55);
1391 ASSERT (strcmp (result, "-0.031250 33") == 0);
1392 ASSERT (retval == strlen (result));
1395 { /* Positive zero. */
1398 my_snprintf (result, sizeof (result), "%F %d", 0.0, 33, 44, 55);
1399 ASSERT (strcmp (result, "0.000000 33") == 0);
1400 ASSERT (retval == strlen (result));
1403 { /* Negative zero. */
1406 my_snprintf (result, sizeof (result), "%F %d", -zerod, 33, 44, 55);
1407 if (have_minus_zero ())
1408 ASSERT (strcmp (result, "-0.000000 33") == 0);
1409 ASSERT (retval == strlen (result));
1412 { /* Positive infinity. */
1415 my_snprintf (result, sizeof (result), "%F %d", 1.0 / 0.0, 33, 44, 55);
1416 ASSERT (strcmp (result, "INF 33") == 0
1417 || strcmp (result, "INFINITY 33") == 0);
1418 ASSERT (retval == strlen (result));
1421 { /* Negative infinity. */
1424 my_snprintf (result, sizeof (result), "%F %d", -1.0 / 0.0, 33, 44, 55);
1425 ASSERT (strcmp (result, "-INF 33") == 0
1426 || strcmp (result, "-INFINITY 33") == 0);
1427 ASSERT (retval == strlen (result));
1433 my_snprintf (result, sizeof (result), "%F %d", NaNd (), 33, 44, 55);
1434 ASSERT (strlen (result) >= 3 + 3
1435 && strisnan (result, 0, strlen (result) - 3, 1)
1436 && strcmp (result + strlen (result) - 3, " 33") == 0);
1437 ASSERT (retval == strlen (result));
1443 my_snprintf (result, sizeof (result), "%015F %d", 1234.0, 33, 44, 55);
1444 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1445 ASSERT (retval == strlen (result));
1448 { /* FLAG_ZERO with infinite number. */
1451 my_snprintf (result, sizeof (result), "%015F %d", -1.0 / 0.0, 33, 44, 55);
1452 ASSERT (strcmp (result, " -INF 33") == 0
1453 || strcmp (result, " -INFINITY 33") == 0);
1454 ASSERT (retval == strlen (result));
1460 my_snprintf (result, sizeof (result), "%.F %d", 1234.0, 33, 44, 55);
1461 ASSERT (strcmp (result, "1234 33") == 0);
1462 ASSERT (retval == strlen (result));
1465 { /* Precision with no rounding. */
1468 my_snprintf (result, sizeof (result), "%.2F %d", 999.951, 33, 44, 55);
1469 ASSERT (strcmp (result, "999.95 33") == 0);
1470 ASSERT (retval == strlen (result));
1473 { /* Precision with rounding. */
1476 my_snprintf (result, sizeof (result), "%.2F %d", 999.996, 33, 44, 55);
1477 ASSERT (strcmp (result, "1000.00 33") == 0);
1478 ASSERT (retval == strlen (result));
1481 { /* A positive number. */
1484 my_snprintf (result, sizeof (result), "%LF %d", 12.75L, 33, 44, 55);
1485 ASSERT (strcmp (result, "12.750000 33") == 0);
1486 ASSERT (retval == strlen (result));
1489 { /* A larger positive number. */
1492 my_snprintf (result, sizeof (result), "%LF %d", 1234567.0L, 33, 44, 55);
1493 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1494 ASSERT (retval == strlen (result));
1497 { /* A negative number. */
1500 my_snprintf (result, sizeof (result), "%LF %d", -0.03125L, 33, 44, 55);
1501 ASSERT (strcmp (result, "-0.031250 33") == 0);
1502 ASSERT (retval == strlen (result));
1505 { /* Positive zero. */
1508 my_snprintf (result, sizeof (result), "%LF %d", 0.0L, 33, 44, 55);
1509 ASSERT (strcmp (result, "0.000000 33") == 0);
1510 ASSERT (retval == strlen (result));
1513 { /* Negative zero. */
1516 my_snprintf (result, sizeof (result), "%LF %d", -zerol, 33, 44, 55);
1517 if (have_minus_zero ())
1518 ASSERT (strcmp (result, "-0.000000 33") == 0);
1519 ASSERT (retval == strlen (result));
1522 { /* Positive infinity. */
1525 my_snprintf (result, sizeof (result), "%LF %d", 1.0L / 0.0L, 33, 44, 55);
1526 ASSERT (strcmp (result, "INF 33") == 0
1527 || strcmp (result, "INFINITY 33") == 0);
1528 ASSERT (retval == strlen (result));
1531 { /* Negative infinity. */
1534 my_snprintf (result, sizeof (result), "%LF %d", -1.0L / 0.0L, 33, 44, 55);
1535 ASSERT (strcmp (result, "-INF 33") == 0
1536 || strcmp (result, "-INFINITY 33") == 0);
1537 ASSERT (retval == strlen (result));
1543 my_snprintf (result, sizeof (result), "%LF %d", NaNl (), 33, 44, 55);
1544 ASSERT (strlen (result) >= 3 + 3
1545 && strisnan (result, 0, strlen (result) - 3, 1)
1546 && strcmp (result + strlen (result) - 3, " 33") == 0);
1547 ASSERT (retval == strlen (result));
1553 my_snprintf (result, sizeof (result), "%015LF %d", 1234.0L, 33, 44, 55);
1554 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1555 ASSERT (retval == strlen (result));
1558 { /* FLAG_ZERO with infinite number. */
1561 my_snprintf (result, sizeof (result), "%015LF %d", -1.0L / 0.0L, 33, 44, 55);
1562 ASSERT (strcmp (result, " -INF 33") == 0
1563 || strcmp (result, " -INFINITY 33") == 0);
1564 ASSERT (retval == strlen (result));
1570 my_snprintf (result, sizeof (result), "%.LF %d", 1234.0L, 33, 44, 55);
1571 ASSERT (strcmp (result, "1234 33") == 0);
1572 ASSERT (retval == strlen (result));
1575 { /* Precision with no rounding. */
1578 my_snprintf (result, sizeof (result), "%.2LF %d", 999.951L, 33, 44, 55);
1579 ASSERT (strcmp (result, "999.95 33") == 0);
1580 ASSERT (retval == strlen (result));
1583 { /* Precision with rounding. */
1586 my_snprintf (result, sizeof (result), "%.2LF %d", 999.996L, 33, 44, 55);
1587 ASSERT (strcmp (result, "1000.00 33") == 0);
1588 ASSERT (retval == strlen (result));
1591 /* Test the support of the %e format directive. */
1593 { /* A positive number. */
1596 my_snprintf (result, sizeof (result), "%e %d", 12.75, 33, 44, 55);
1597 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1598 || strcmp (result, "1.275000e+001 33") == 0);
1599 ASSERT (retval == strlen (result));
1602 { /* A larger positive number. */
1605 my_snprintf (result, sizeof (result), "%e %d", 1234567.0, 33, 44, 55);
1606 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1607 || strcmp (result, "1.234567e+006 33") == 0);
1608 ASSERT (retval == strlen (result));
1611 { /* Small and large positive numbers. */
1612 static struct { double value; const char *string; } data[] =
1614 { 1.234321234321234e-37, "1.234321e-37" },
1615 { 1.234321234321234e-36, "1.234321e-36" },
1616 { 1.234321234321234e-35, "1.234321e-35" },
1617 { 1.234321234321234e-34, "1.234321e-34" },
1618 { 1.234321234321234e-33, "1.234321e-33" },
1619 { 1.234321234321234e-32, "1.234321e-32" },
1620 { 1.234321234321234e-31, "1.234321e-31" },
1621 { 1.234321234321234e-30, "1.234321e-30" },
1622 { 1.234321234321234e-29, "1.234321e-29" },
1623 { 1.234321234321234e-28, "1.234321e-28" },
1624 { 1.234321234321234e-27, "1.234321e-27" },
1625 { 1.234321234321234e-26, "1.234321e-26" },
1626 { 1.234321234321234e-25, "1.234321e-25" },
1627 { 1.234321234321234e-24, "1.234321e-24" },
1628 { 1.234321234321234e-23, "1.234321e-23" },
1629 { 1.234321234321234e-22, "1.234321e-22" },
1630 { 1.234321234321234e-21, "1.234321e-21" },
1631 { 1.234321234321234e-20, "1.234321e-20" },
1632 { 1.234321234321234e-19, "1.234321e-19" },
1633 { 1.234321234321234e-18, "1.234321e-18" },
1634 { 1.234321234321234e-17, "1.234321e-17" },
1635 { 1.234321234321234e-16, "1.234321e-16" },
1636 { 1.234321234321234e-15, "1.234321e-15" },
1637 { 1.234321234321234e-14, "1.234321e-14" },
1638 { 1.234321234321234e-13, "1.234321e-13" },
1639 { 1.234321234321234e-12, "1.234321e-12" },
1640 { 1.234321234321234e-11, "1.234321e-11" },
1641 { 1.234321234321234e-10, "1.234321e-10" },
1642 { 1.234321234321234e-9, "1.234321e-09" },
1643 { 1.234321234321234e-8, "1.234321e-08" },
1644 { 1.234321234321234e-7, "1.234321e-07" },
1645 { 1.234321234321234e-6, "1.234321e-06" },
1646 { 1.234321234321234e-5, "1.234321e-05" },
1647 { 1.234321234321234e-4, "1.234321e-04" },
1648 { 1.234321234321234e-3, "1.234321e-03" },
1649 { 1.234321234321234e-2, "1.234321e-02" },
1650 { 1.234321234321234e-1, "1.234321e-01" },
1651 { 1.234321234321234, "1.234321e+00" },
1652 { 1.234321234321234e1, "1.234321e+01" },
1653 { 1.234321234321234e2, "1.234321e+02" },
1654 { 1.234321234321234e3, "1.234321e+03" },
1655 { 1.234321234321234e4, "1.234321e+04" },
1656 { 1.234321234321234e5, "1.234321e+05" },
1657 { 1.234321234321234e6, "1.234321e+06" },
1658 { 1.234321234321234e7, "1.234321e+07" },
1659 { 1.234321234321234e8, "1.234321e+08" },
1660 { 1.234321234321234e9, "1.234321e+09" },
1661 { 1.234321234321234e10, "1.234321e+10" },
1662 { 1.234321234321234e11, "1.234321e+11" },
1663 { 1.234321234321234e12, "1.234321e+12" },
1664 { 1.234321234321234e13, "1.234321e+13" },
1665 { 1.234321234321234e14, "1.234321e+14" },
1666 { 1.234321234321234e15, "1.234321e+15" },
1667 { 1.234321234321234e16, "1.234321e+16" },
1668 { 1.234321234321234e17, "1.234321e+17" },
1669 { 1.234321234321234e18, "1.234321e+18" },
1670 { 1.234321234321234e19, "1.234321e+19" },
1671 { 1.234321234321234e20, "1.234321e+20" },
1672 { 1.234321234321234e21, "1.234321e+21" },
1673 { 1.234321234321234e22, "1.234321e+22" },
1674 { 1.234321234321234e23, "1.234321e+23" },
1675 { 1.234321234321234e24, "1.234321e+24" },
1676 { 1.234321234321234e25, "1.234321e+25" },
1677 { 1.234321234321234e26, "1.234321e+26" },
1678 { 1.234321234321234e27, "1.234321e+27" },
1679 { 1.234321234321234e28, "1.234321e+28" },
1680 { 1.234321234321234e29, "1.234321e+29" },
1681 { 1.234321234321234e30, "1.234321e+30" },
1682 { 1.234321234321234e31, "1.234321e+31" },
1683 { 1.234321234321234e32, "1.234321e+32" },
1684 { 1.234321234321234e33, "1.234321e+33" },
1685 { 1.234321234321234e34, "1.234321e+34" },
1686 { 1.234321234321234e35, "1.234321e+35" },
1687 { 1.234321234321234e36, "1.234321e+36" }
1690 for (k = 0; k < SIZEOF (data); k++)
1694 my_snprintf (result, sizeof (result), "%e", data[k].value);
1695 const char *expected = data[k].string;
1696 ASSERT (strcmp (result, expected) == 0
1697 /* Some implementations produce exponents with 3 digits. */
1698 || (strlen (result) == strlen (expected) + 1
1699 && memcmp (result, expected, strlen (expected) - 2) == 0
1700 && result[strlen (expected) - 2] == '0'
1701 && strcmp (result + strlen (expected) - 1,
1702 expected + strlen (expected) - 2)
1704 ASSERT (retval == strlen (result));
1708 { /* A negative number. */
1711 my_snprintf (result, sizeof (result), "%e %d", -0.03125, 33, 44, 55);
1712 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
1713 || strcmp (result, "-3.125000e-002 33") == 0);
1714 ASSERT (retval == strlen (result));
1717 { /* Positive zero. */
1720 my_snprintf (result, sizeof (result), "%e %d", 0.0, 33, 44, 55);
1721 ASSERT (strcmp (result, "0.000000e+00 33") == 0
1722 || strcmp (result, "0.000000e+000 33") == 0);
1723 ASSERT (retval == strlen (result));
1726 { /* Negative zero. */
1729 my_snprintf (result, sizeof (result), "%e %d", -zerod, 33, 44, 55);
1730 if (have_minus_zero ())
1731 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
1732 || strcmp (result, "-0.000000e+000 33") == 0);
1733 ASSERT (retval == strlen (result));
1736 { /* Positive infinity. */
1739 my_snprintf (result, sizeof (result), "%e %d", 1.0 / 0.0, 33, 44, 55);
1740 ASSERT (strcmp (result, "inf 33") == 0
1741 || strcmp (result, "infinity 33") == 0);
1742 ASSERT (retval == strlen (result));
1745 { /* Negative infinity. */
1748 my_snprintf (result, sizeof (result), "%e %d", -1.0 / 0.0, 33, 44, 55);
1749 ASSERT (strcmp (result, "-inf 33") == 0
1750 || strcmp (result, "-infinity 33") == 0);
1751 ASSERT (retval == strlen (result));
1757 my_snprintf (result, sizeof (result), "%e %d", NaNd (), 33, 44, 55);
1758 ASSERT (strlen (result) >= 3 + 3
1759 && strisnan (result, 0, strlen (result) - 3, 0)
1760 && strcmp (result + strlen (result) - 3, " 33") == 0);
1761 ASSERT (retval == strlen (result));
1767 my_snprintf (result, sizeof (result), "%15e %d", 1.75, 33, 44, 55);
1768 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1769 || strcmp (result, " 1.750000e+000 33") == 0);
1770 ASSERT (retval == strlen (result));
1776 my_snprintf (result, sizeof (result), "%-15e %d", 1.75, 33, 44, 55);
1777 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1778 || strcmp (result, "1.750000e+000 33") == 0);
1779 ASSERT (retval == strlen (result));
1782 { /* FLAG_SHOWSIGN. */
1785 my_snprintf (result, sizeof (result), "%+e %d", 1.75, 33, 44, 55);
1786 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
1787 || strcmp (result, "+1.750000e+000 33") == 0);
1788 ASSERT (retval == strlen (result));
1794 my_snprintf (result, sizeof (result), "% e %d", 1.75, 33, 44, 55);
1795 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1796 || strcmp (result, " 1.750000e+000 33") == 0);
1797 ASSERT (retval == strlen (result));
1803 my_snprintf (result, sizeof (result), "%#e %d", 1.75, 33, 44, 55);
1804 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1805 || strcmp (result, "1.750000e+000 33") == 0);
1806 ASSERT (retval == strlen (result));
1812 my_snprintf (result, sizeof (result), "%#.e %d", 1.75, 33, 44, 55);
1813 ASSERT (strcmp (result, "2.e+00 33") == 0
1814 || strcmp (result, "2.e+000 33") == 0);
1815 ASSERT (retval == strlen (result));
1821 my_snprintf (result, sizeof (result), "%#.e %d", 9.75, 33, 44, 55);
1822 ASSERT (strcmp (result, "1.e+01 33") == 0
1823 || strcmp (result, "1.e+001 33") == 0);
1824 ASSERT (retval == strlen (result));
1827 { /* FLAG_ZERO with finite number. */
1830 my_snprintf (result, sizeof (result), "%015e %d", 1234.0, 33, 44, 55);
1831 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
1832 || strcmp (result, "001.234000e+003 33") == 0);
1833 ASSERT (retval == strlen (result));
1836 { /* FLAG_ZERO with infinite number. */
1839 my_snprintf (result, sizeof (result), "%015e %d", -1.0 / 0.0, 33, 44, 55);
1840 ASSERT (strcmp (result, " -inf 33") == 0
1841 || strcmp (result, " -infinity 33") == 0);
1842 ASSERT (retval == strlen (result));
1845 { /* FLAG_ZERO with NaN. */
1848 my_snprintf (result, sizeof (result), "%050e %d", NaNd (), 33, 44, 55);
1849 ASSERT (strlen (result) == 50 + 3
1850 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1851 && strcmp (result + strlen (result) - 3, " 33") == 0);
1852 ASSERT (retval == strlen (result));
1858 my_snprintf (result, sizeof (result), "%.e %d", 1234.0, 33, 44, 55);
1859 ASSERT (strcmp (result, "1e+03 33") == 0
1860 || strcmp (result, "1e+003 33") == 0);
1861 ASSERT (retval == strlen (result));
1864 { /* Precision with no rounding. */
1867 my_snprintf (result, sizeof (result), "%.4e %d", 999.951, 33, 44, 55);
1868 ASSERT (strcmp (result, "9.9995e+02 33") == 0
1869 || strcmp (result, "9.9995e+002 33") == 0);
1870 ASSERT (retval == strlen (result));
1873 { /* Precision with rounding. */
1876 my_snprintf (result, sizeof (result), "%.4e %d", 999.996, 33, 44, 55);
1877 ASSERT (strcmp (result, "1.0000e+03 33") == 0
1878 || strcmp (result, "1.0000e+003 33") == 0);
1879 ASSERT (retval == strlen (result));
1882 { /* A positive number. */
1885 my_snprintf (result, sizeof (result), "%Le %d", 12.75L, 33, 44, 55);
1886 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1887 || strcmp (result, "1.275000e+001 33") == 0);
1888 ASSERT (retval == strlen (result));
1891 { /* A larger positive number. */
1894 my_snprintf (result, sizeof (result), "%Le %d", 1234567.0L, 33, 44, 55);
1895 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1896 || strcmp (result, "1.234567e+006 33") == 0);
1897 ASSERT (retval == strlen (result));
1900 { /* Small and large positive numbers. */
1901 static struct { long double value; const char *string; } data[] =
1903 { 1.234321234321234e-37L, "1.234321e-37" },
1904 { 1.234321234321234e-36L, "1.234321e-36" },
1905 { 1.234321234321234e-35L, "1.234321e-35" },
1906 { 1.234321234321234e-34L, "1.234321e-34" },
1907 { 1.234321234321234e-33L, "1.234321e-33" },
1908 { 1.234321234321234e-32L, "1.234321e-32" },
1909 { 1.234321234321234e-31L, "1.234321e-31" },
1910 { 1.234321234321234e-30L, "1.234321e-30" },
1911 { 1.234321234321234e-29L, "1.234321e-29" },
1912 { 1.234321234321234e-28L, "1.234321e-28" },
1913 { 1.234321234321234e-27L, "1.234321e-27" },
1914 { 1.234321234321234e-26L, "1.234321e-26" },
1915 { 1.234321234321234e-25L, "1.234321e-25" },
1916 { 1.234321234321234e-24L, "1.234321e-24" },
1917 { 1.234321234321234e-23L, "1.234321e-23" },
1918 { 1.234321234321234e-22L, "1.234321e-22" },
1919 { 1.234321234321234e-21L, "1.234321e-21" },
1920 { 1.234321234321234e-20L, "1.234321e-20" },
1921 { 1.234321234321234e-19L, "1.234321e-19" },
1922 { 1.234321234321234e-18L, "1.234321e-18" },
1923 { 1.234321234321234e-17L, "1.234321e-17" },
1924 { 1.234321234321234e-16L, "1.234321e-16" },
1925 { 1.234321234321234e-15L, "1.234321e-15" },
1926 { 1.234321234321234e-14L, "1.234321e-14" },
1927 { 1.234321234321234e-13L, "1.234321e-13" },
1928 { 1.234321234321234e-12L, "1.234321e-12" },
1929 { 1.234321234321234e-11L, "1.234321e-11" },
1930 { 1.234321234321234e-10L, "1.234321e-10" },
1931 { 1.234321234321234e-9L, "1.234321e-09" },
1932 { 1.234321234321234e-8L, "1.234321e-08" },
1933 { 1.234321234321234e-7L, "1.234321e-07" },
1934 { 1.234321234321234e-6L, "1.234321e-06" },
1935 { 1.234321234321234e-5L, "1.234321e-05" },
1936 { 1.234321234321234e-4L, "1.234321e-04" },
1937 { 1.234321234321234e-3L, "1.234321e-03" },
1938 { 1.234321234321234e-2L, "1.234321e-02" },
1939 { 1.234321234321234e-1L, "1.234321e-01" },
1940 { 1.234321234321234L, "1.234321e+00" },
1941 { 1.234321234321234e1L, "1.234321e+01" },
1942 { 1.234321234321234e2L, "1.234321e+02" },
1943 { 1.234321234321234e3L, "1.234321e+03" },
1944 { 1.234321234321234e4L, "1.234321e+04" },
1945 { 1.234321234321234e5L, "1.234321e+05" },
1946 { 1.234321234321234e6L, "1.234321e+06" },
1947 { 1.234321234321234e7L, "1.234321e+07" },
1948 { 1.234321234321234e8L, "1.234321e+08" },
1949 { 1.234321234321234e9L, "1.234321e+09" },
1950 { 1.234321234321234e10L, "1.234321e+10" },
1951 { 1.234321234321234e11L, "1.234321e+11" },
1952 { 1.234321234321234e12L, "1.234321e+12" },
1953 { 1.234321234321234e13L, "1.234321e+13" },
1954 { 1.234321234321234e14L, "1.234321e+14" },
1955 { 1.234321234321234e15L, "1.234321e+15" },
1956 { 1.234321234321234e16L, "1.234321e+16" },
1957 { 1.234321234321234e17L, "1.234321e+17" },
1958 { 1.234321234321234e18L, "1.234321e+18" },
1959 { 1.234321234321234e19L, "1.234321e+19" },
1960 { 1.234321234321234e20L, "1.234321e+20" },
1961 { 1.234321234321234e21L, "1.234321e+21" },
1962 { 1.234321234321234e22L, "1.234321e+22" },
1963 { 1.234321234321234e23L, "1.234321e+23" },
1964 { 1.234321234321234e24L, "1.234321e+24" },
1965 { 1.234321234321234e25L, "1.234321e+25" },
1966 { 1.234321234321234e26L, "1.234321e+26" },
1967 { 1.234321234321234e27L, "1.234321e+27" },
1968 { 1.234321234321234e28L, "1.234321e+28" },
1969 { 1.234321234321234e29L, "1.234321e+29" },
1970 { 1.234321234321234e30L, "1.234321e+30" },
1971 { 1.234321234321234e31L, "1.234321e+31" },
1972 { 1.234321234321234e32L, "1.234321e+32" },
1973 { 1.234321234321234e33L, "1.234321e+33" },
1974 { 1.234321234321234e34L, "1.234321e+34" },
1975 { 1.234321234321234e35L, "1.234321e+35" },
1976 { 1.234321234321234e36L, "1.234321e+36" }
1979 for (k = 0; k < SIZEOF (data); k++)
1983 my_snprintf (result, sizeof (result), "%Le", data[k].value);
1984 const char *expected = data[k].string;
1985 ASSERT (strcmp (result, expected) == 0
1986 /* Some implementations produce exponents with 3 digits. */
1987 || (strlen (result) == strlen (expected) + 1
1988 && memcmp (result, expected, strlen (expected) - 2) == 0
1989 && result[strlen (expected) - 2] == '0'
1990 && strcmp (result + strlen (expected) - 1,
1991 expected + strlen (expected) - 2)
1993 ASSERT (retval == strlen (result));
1997 { /* A negative number. */
2000 my_snprintf (result, sizeof (result), "%Le %d", -0.03125L, 33, 44, 55);
2001 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
2002 || strcmp (result, "-3.125000e-002 33") == 0);
2003 ASSERT (retval == strlen (result));
2006 { /* Positive zero. */
2009 my_snprintf (result, sizeof (result), "%Le %d", 0.0L, 33, 44, 55);
2010 ASSERT (strcmp (result, "0.000000e+00 33") == 0
2011 || strcmp (result, "0.000000e+000 33") == 0);
2012 ASSERT (retval == strlen (result));
2015 { /* Negative zero. */
2018 my_snprintf (result, sizeof (result), "%Le %d", -zerol, 33, 44, 55);
2019 if (have_minus_zero ())
2020 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
2021 || strcmp (result, "-0.000000e+000 33") == 0);
2022 ASSERT (retval == strlen (result));
2025 { /* Positive infinity. */
2028 my_snprintf (result, sizeof (result), "%Le %d", 1.0L / 0.0L, 33, 44, 55);
2029 ASSERT (strcmp (result, "inf 33") == 0
2030 || strcmp (result, "infinity 33") == 0);
2031 ASSERT (retval == strlen (result));
2034 { /* Negative infinity. */
2037 my_snprintf (result, sizeof (result), "%Le %d", -1.0L / 0.0L, 33, 44, 55);
2038 ASSERT (strcmp (result, "-inf 33") == 0
2039 || strcmp (result, "-infinity 33") == 0);
2040 ASSERT (retval == strlen (result));
2046 my_snprintf (result, sizeof (result), "%Le %d", NaNl (), 33, 44, 55);
2047 ASSERT (strlen (result) >= 3 + 3
2048 && strisnan (result, 0, strlen (result) - 3, 0)
2049 && strcmp (result + strlen (result) - 3, " 33") == 0);
2050 ASSERT (retval == strlen (result));
2052 #if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
2054 static union { unsigned int word[4]; long double value; } x =
2055 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2058 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2059 ASSERT (strlen (result) >= 3 + 3
2060 && strisnan (result, 0, strlen (result) - 3, 0)
2061 && strcmp (result + strlen (result) - 3, " 33") == 0);
2062 ASSERT (retval == strlen (result));
2065 /* Signalling NaN. */
2066 static union { unsigned int word[4]; long double value; } x =
2067 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2070 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2071 ASSERT (strlen (result) >= 3 + 3
2072 && strisnan (result, 0, strlen (result) - 3, 0)
2073 && strcmp (result + strlen (result) - 3, " 33") == 0);
2074 ASSERT (retval == strlen (result));
2076 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2077 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2078 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2079 Application Architecture.
2080 Table 5-2 "Floating-Point Register Encodings"
2081 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2084 static union { unsigned int word[4]; long double value; } x =
2085 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2088 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2089 ASSERT (strlen (result) >= 3 + 3
2090 && strisnan (result, 0, strlen (result) - 3, 0)
2091 && strcmp (result + strlen (result) - 3, " 33") == 0);
2092 ASSERT (retval == strlen (result));
2094 { /* Pseudo-Infinity. */
2095 static union { unsigned int word[4]; long double value; } x =
2096 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2099 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2100 ASSERT (strlen (result) >= 3 + 3
2101 && strisnan (result, 0, strlen (result) - 3, 0)
2102 && strcmp (result + strlen (result) - 3, " 33") == 0);
2103 ASSERT (retval == strlen (result));
2105 { /* Pseudo-Zero. */
2106 static union { unsigned int word[4]; long double value; } x =
2107 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2110 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2111 ASSERT (strlen (result) >= 3 + 3
2112 && strisnan (result, 0, strlen (result) - 3, 0)
2113 && strcmp (result + strlen (result) - 3, " 33") == 0);
2114 ASSERT (retval == strlen (result));
2116 { /* Unnormalized number. */
2117 static union { unsigned int word[4]; long double value; } x =
2118 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2121 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2122 ASSERT (strlen (result) >= 3 + 3
2123 && strisnan (result, 0, strlen (result) - 3, 0)
2124 && strcmp (result + strlen (result) - 3, " 33") == 0);
2125 ASSERT (retval == strlen (result));
2127 { /* Pseudo-Denormal. */
2128 static union { unsigned int word[4]; long double value; } x =
2129 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2132 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2133 ASSERT (strlen (result) >= 3 + 3
2134 && strisnan (result, 0, strlen (result) - 3, 0)
2135 && strcmp (result + strlen (result) - 3, " 33") == 0);
2136 ASSERT (retval == strlen (result));
2143 my_snprintf (result, sizeof (result), "%15Le %d", 1.75L, 33, 44, 55);
2144 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2145 || strcmp (result, " 1.750000e+000 33") == 0);
2146 ASSERT (retval == strlen (result));
2152 my_snprintf (result, sizeof (result), "%-15Le %d", 1.75L, 33, 44, 55);
2153 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2154 || strcmp (result, "1.750000e+000 33") == 0);
2155 ASSERT (retval == strlen (result));
2158 { /* FLAG_SHOWSIGN. */
2161 my_snprintf (result, sizeof (result), "%+Le %d", 1.75L, 33, 44, 55);
2162 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
2163 || strcmp (result, "+1.750000e+000 33") == 0);
2164 ASSERT (retval == strlen (result));
2170 my_snprintf (result, sizeof (result), "% Le %d", 1.75L, 33, 44, 55);
2171 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2172 || strcmp (result, " 1.750000e+000 33") == 0);
2173 ASSERT (retval == strlen (result));
2179 my_snprintf (result, sizeof (result), "%#Le %d", 1.75L, 33, 44, 55);
2180 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2181 || strcmp (result, "1.750000e+000 33") == 0);
2182 ASSERT (retval == strlen (result));
2188 my_snprintf (result, sizeof (result), "%#.Le %d", 1.75L, 33, 44, 55);
2189 ASSERT (strcmp (result, "2.e+00 33") == 0
2190 || strcmp (result, "2.e+000 33") == 0);
2191 ASSERT (retval == strlen (result));
2197 my_snprintf (result, sizeof (result), "%#.Le %d", 9.75L, 33, 44, 55);
2198 ASSERT (strcmp (result, "1.e+01 33") == 0
2199 || strcmp (result, "1.e+001 33") == 0);
2200 ASSERT (retval == strlen (result));
2203 { /* FLAG_ZERO with finite number. */
2206 my_snprintf (result, sizeof (result), "%015Le %d", 1234.0L, 33, 44, 55);
2207 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
2208 || strcmp (result, "001.234000e+003 33") == 0);
2209 ASSERT (retval == strlen (result));
2212 { /* FLAG_ZERO with infinite number. */
2215 my_snprintf (result, sizeof (result), "%015Le %d", -1.0L / 0.0L, 33, 44, 55);
2216 ASSERT (strcmp (result, " -inf 33") == 0
2217 || strcmp (result, " -infinity 33") == 0);
2218 ASSERT (retval == strlen (result));
2221 { /* FLAG_ZERO with NaN. */
2224 my_snprintf (result, sizeof (result), "%050Le %d", NaNl (), 33, 44, 55);
2225 ASSERT (strlen (result) == 50 + 3
2226 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2227 && strcmp (result + strlen (result) - 3, " 33") == 0);
2228 ASSERT (retval == strlen (result));
2234 my_snprintf (result, sizeof (result), "%.Le %d", 1234.0L, 33, 44, 55);
2235 ASSERT (strcmp (result, "1e+03 33") == 0
2236 || strcmp (result, "1e+003 33") == 0);
2237 ASSERT (retval == strlen (result));
2240 { /* Precision with no rounding. */
2243 my_snprintf (result, sizeof (result), "%.4Le %d", 999.951L, 33, 44, 55);
2244 ASSERT (strcmp (result, "9.9995e+02 33") == 0
2245 || strcmp (result, "9.9995e+002 33") == 0);
2246 ASSERT (retval == strlen (result));
2249 { /* Precision with rounding. */
2252 my_snprintf (result, sizeof (result), "%.4Le %d", 999.996L, 33, 44, 55);
2253 ASSERT (strcmp (result, "1.0000e+03 33") == 0
2254 || strcmp (result, "1.0000e+003 33") == 0);
2255 ASSERT (retval == strlen (result));
2258 /* Test the support of the %g format directive. */
2260 { /* A positive number. */
2263 my_snprintf (result, sizeof (result), "%g %d", 12.75, 33, 44, 55);
2264 ASSERT (strcmp (result, "12.75 33") == 0);
2265 ASSERT (retval == strlen (result));
2268 { /* A larger positive number. */
2271 my_snprintf (result, sizeof (result), "%g %d", 1234567.0, 33, 44, 55);
2272 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2273 || strcmp (result, "1.23457e+006 33") == 0);
2274 ASSERT (retval == strlen (result));
2277 { /* Small and large positive numbers. */
2278 static struct { double value; const char *string; } data[] =
2280 { 1.234321234321234e-37, "1.23432e-37" },
2281 { 1.234321234321234e-36, "1.23432e-36" },
2282 { 1.234321234321234e-35, "1.23432e-35" },
2283 { 1.234321234321234e-34, "1.23432e-34" },
2284 { 1.234321234321234e-33, "1.23432e-33" },
2285 { 1.234321234321234e-32, "1.23432e-32" },
2286 { 1.234321234321234e-31, "1.23432e-31" },
2287 { 1.234321234321234e-30, "1.23432e-30" },
2288 { 1.234321234321234e-29, "1.23432e-29" },
2289 { 1.234321234321234e-28, "1.23432e-28" },
2290 { 1.234321234321234e-27, "1.23432e-27" },
2291 { 1.234321234321234e-26, "1.23432e-26" },
2292 { 1.234321234321234e-25, "1.23432e-25" },
2293 { 1.234321234321234e-24, "1.23432e-24" },
2294 { 1.234321234321234e-23, "1.23432e-23" },
2295 { 1.234321234321234e-22, "1.23432e-22" },
2296 { 1.234321234321234e-21, "1.23432e-21" },
2297 { 1.234321234321234e-20, "1.23432e-20" },
2298 { 1.234321234321234e-19, "1.23432e-19" },
2299 { 1.234321234321234e-18, "1.23432e-18" },
2300 { 1.234321234321234e-17, "1.23432e-17" },
2301 { 1.234321234321234e-16, "1.23432e-16" },
2302 { 1.234321234321234e-15, "1.23432e-15" },
2303 { 1.234321234321234e-14, "1.23432e-14" },
2304 { 1.234321234321234e-13, "1.23432e-13" },
2305 { 1.234321234321234e-12, "1.23432e-12" },
2306 { 1.234321234321234e-11, "1.23432e-11" },
2307 { 1.234321234321234e-10, "1.23432e-10" },
2308 { 1.234321234321234e-9, "1.23432e-09" },
2309 { 1.234321234321234e-8, "1.23432e-08" },
2310 { 1.234321234321234e-7, "1.23432e-07" },
2311 { 1.234321234321234e-6, "1.23432e-06" },
2312 { 1.234321234321234e-5, "1.23432e-05" },
2313 { 1.234321234321234e-4, "0.000123432" },
2314 { 1.234321234321234e-3, "0.00123432" },
2315 { 1.234321234321234e-2, "0.0123432" },
2316 { 1.234321234321234e-1, "0.123432" },
2317 { 1.234321234321234, "1.23432" },
2318 { 1.234321234321234e1, "12.3432" },
2319 { 1.234321234321234e2, "123.432" },
2320 { 1.234321234321234e3, "1234.32" },
2321 { 1.234321234321234e4, "12343.2" },
2322 { 1.234321234321234e5, "123432" },
2323 { 1.234321234321234e6, "1.23432e+06" },
2324 { 1.234321234321234e7, "1.23432e+07" },
2325 { 1.234321234321234e8, "1.23432e+08" },
2326 { 1.234321234321234e9, "1.23432e+09" },
2327 { 1.234321234321234e10, "1.23432e+10" },
2328 { 1.234321234321234e11, "1.23432e+11" },
2329 { 1.234321234321234e12, "1.23432e+12" },
2330 { 1.234321234321234e13, "1.23432e+13" },
2331 { 1.234321234321234e14, "1.23432e+14" },
2332 { 1.234321234321234e15, "1.23432e+15" },
2333 { 1.234321234321234e16, "1.23432e+16" },
2334 { 1.234321234321234e17, "1.23432e+17" },
2335 { 1.234321234321234e18, "1.23432e+18" },
2336 { 1.234321234321234e19, "1.23432e+19" },
2337 { 1.234321234321234e20, "1.23432e+20" },
2338 { 1.234321234321234e21, "1.23432e+21" },
2339 { 1.234321234321234e22, "1.23432e+22" },
2340 { 1.234321234321234e23, "1.23432e+23" },
2341 { 1.234321234321234e24, "1.23432e+24" },
2342 { 1.234321234321234e25, "1.23432e+25" },
2343 { 1.234321234321234e26, "1.23432e+26" },
2344 { 1.234321234321234e27, "1.23432e+27" },
2345 { 1.234321234321234e28, "1.23432e+28" },
2346 { 1.234321234321234e29, "1.23432e+29" },
2347 { 1.234321234321234e30, "1.23432e+30" },
2348 { 1.234321234321234e31, "1.23432e+31" },
2349 { 1.234321234321234e32, "1.23432e+32" },
2350 { 1.234321234321234e33, "1.23432e+33" },
2351 { 1.234321234321234e34, "1.23432e+34" },
2352 { 1.234321234321234e35, "1.23432e+35" },
2353 { 1.234321234321234e36, "1.23432e+36" }
2356 for (k = 0; k < SIZEOF (data); k++)
2360 my_snprintf (result, sizeof (result), "%g", data[k].value);
2361 const char *expected = data[k].string;
2362 ASSERT (strcmp (result, expected) == 0
2363 /* Some implementations produce exponents with 3 digits. */
2364 || (expected[strlen (expected) - 4] == 'e'
2365 && strlen (result) == strlen (expected) + 1
2366 && memcmp (result, expected, strlen (expected) - 2) == 0
2367 && result[strlen (expected) - 2] == '0'
2368 && strcmp (result + strlen (expected) - 1,
2369 expected + strlen (expected) - 2)
2371 ASSERT (retval == strlen (result));
2375 { /* A negative number. */
2378 my_snprintf (result, sizeof (result), "%g %d", -0.03125, 33, 44, 55);
2379 ASSERT (strcmp (result, "-0.03125 33") == 0);
2380 ASSERT (retval == strlen (result));
2383 { /* Positive zero. */
2386 my_snprintf (result, sizeof (result), "%g %d", 0.0, 33, 44, 55);
2387 ASSERT (strcmp (result, "0 33") == 0);
2388 ASSERT (retval == strlen (result));
2391 { /* Negative zero. */
2394 my_snprintf (result, sizeof (result), "%g %d", -zerod, 33, 44, 55);
2395 if (have_minus_zero ())
2396 ASSERT (strcmp (result, "-0 33") == 0);
2397 ASSERT (retval == strlen (result));
2400 { /* Positive infinity. */
2403 my_snprintf (result, sizeof (result), "%g %d", 1.0 / 0.0, 33, 44, 55);
2404 ASSERT (strcmp (result, "inf 33") == 0
2405 || strcmp (result, "infinity 33") == 0);
2406 ASSERT (retval == strlen (result));
2409 { /* Negative infinity. */
2412 my_snprintf (result, sizeof (result), "%g %d", -1.0 / 0.0, 33, 44, 55);
2413 ASSERT (strcmp (result, "-inf 33") == 0
2414 || strcmp (result, "-infinity 33") == 0);
2415 ASSERT (retval == strlen (result));
2421 my_snprintf (result, sizeof (result), "%g %d", NaNd (), 33, 44, 55);
2422 ASSERT (strlen (result) >= 3 + 3
2423 && strisnan (result, 0, strlen (result) - 3, 0)
2424 && strcmp (result + strlen (result) - 3, " 33") == 0);
2425 ASSERT (retval == strlen (result));
2431 my_snprintf (result, sizeof (result), "%10g %d", 1.75, 33, 44, 55);
2432 ASSERT (strcmp (result, " 1.75 33") == 0);
2433 ASSERT (retval == strlen (result));
2439 my_snprintf (result, sizeof (result), "%-10g %d", 1.75, 33, 44, 55);
2440 ASSERT (strcmp (result, "1.75 33") == 0);
2441 ASSERT (retval == strlen (result));
2444 { /* FLAG_SHOWSIGN. */
2447 my_snprintf (result, sizeof (result), "%+g %d", 1.75, 33, 44, 55);
2448 ASSERT (strcmp (result, "+1.75 33") == 0);
2449 ASSERT (retval == strlen (result));
2455 my_snprintf (result, sizeof (result), "% g %d", 1.75, 33, 44, 55);
2456 ASSERT (strcmp (result, " 1.75 33") == 0);
2457 ASSERT (retval == strlen (result));
2463 my_snprintf (result, sizeof (result), "%#g %d", 1.75, 33, 44, 55);
2464 ASSERT (strcmp (result, "1.75000 33") == 0);
2465 ASSERT (retval == strlen (result));
2471 my_snprintf (result, sizeof (result), "%#.g %d", 1.75, 33, 44, 55);
2472 ASSERT (strcmp (result, "2. 33") == 0);
2473 ASSERT (retval == strlen (result));
2479 my_snprintf (result, sizeof (result), "%#.g %d", 9.75, 33, 44, 55);
2480 ASSERT (strcmp (result, "1.e+01 33") == 0
2481 || strcmp (result, "1.e+001 33") == 0);
2482 ASSERT (retval == strlen (result));
2485 { /* FLAG_ZERO with finite number. */
2488 my_snprintf (result, sizeof (result), "%010g %d", 1234.0, 33, 44, 55);
2489 ASSERT (strcmp (result, "0000001234 33") == 0);
2490 ASSERT (retval == strlen (result));
2493 { /* FLAG_ZERO with infinite number. */
2496 my_snprintf (result, sizeof (result), "%015g %d", -1.0 / 0.0, 33, 44, 55);
2497 ASSERT (strcmp (result, " -inf 33") == 0
2498 || strcmp (result, " -infinity 33") == 0);
2499 ASSERT (retval == strlen (result));
2502 { /* FLAG_ZERO with NaN. */
2505 my_snprintf (result, sizeof (result), "%050g %d", NaNd (), 33, 44, 55);
2506 ASSERT (strlen (result) == 50 + 3
2507 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2508 && strcmp (result + strlen (result) - 3, " 33") == 0);
2509 ASSERT (retval == strlen (result));
2515 my_snprintf (result, sizeof (result), "%.g %d", 1234.0, 33, 44, 55);
2516 ASSERT (strcmp (result, "1e+03 33") == 0
2517 || strcmp (result, "1e+003 33") == 0);
2518 ASSERT (retval == strlen (result));
2521 { /* Precision with no rounding. */
2524 my_snprintf (result, sizeof (result), "%.5g %d", 999.951, 33, 44, 55);
2525 ASSERT (strcmp (result, "999.95 33") == 0);
2526 ASSERT (retval == strlen (result));
2529 { /* Precision with rounding. */
2532 my_snprintf (result, sizeof (result), "%.5g %d", 999.996, 33, 44, 55);
2533 ASSERT (strcmp (result, "1000 33") == 0);
2534 ASSERT (retval == strlen (result));
2537 { /* A positive number. */
2540 my_snprintf (result, sizeof (result), "%Lg %d", 12.75L, 33, 44, 55);
2541 ASSERT (strcmp (result, "12.75 33") == 0);
2542 ASSERT (retval == strlen (result));
2545 { /* A larger positive number. */
2548 my_snprintf (result, sizeof (result), "%Lg %d", 1234567.0L, 33, 44, 55);
2549 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2550 || strcmp (result, "1.23457e+006 33") == 0);
2551 ASSERT (retval == strlen (result));
2554 { /* Small and large positive numbers. */
2555 static struct { long double value; const char *string; } data[] =
2557 { 1.234321234321234e-37L, "1.23432e-37" },
2558 { 1.234321234321234e-36L, "1.23432e-36" },
2559 { 1.234321234321234e-35L, "1.23432e-35" },
2560 { 1.234321234321234e-34L, "1.23432e-34" },
2561 { 1.234321234321234e-33L, "1.23432e-33" },
2562 { 1.234321234321234e-32L, "1.23432e-32" },
2563 { 1.234321234321234e-31L, "1.23432e-31" },
2564 { 1.234321234321234e-30L, "1.23432e-30" },
2565 { 1.234321234321234e-29L, "1.23432e-29" },
2566 { 1.234321234321234e-28L, "1.23432e-28" },
2567 { 1.234321234321234e-27L, "1.23432e-27" },
2568 { 1.234321234321234e-26L, "1.23432e-26" },
2569 { 1.234321234321234e-25L, "1.23432e-25" },
2570 { 1.234321234321234e-24L, "1.23432e-24" },
2571 { 1.234321234321234e-23L, "1.23432e-23" },
2572 { 1.234321234321234e-22L, "1.23432e-22" },
2573 { 1.234321234321234e-21L, "1.23432e-21" },
2574 { 1.234321234321234e-20L, "1.23432e-20" },
2575 { 1.234321234321234e-19L, "1.23432e-19" },
2576 { 1.234321234321234e-18L, "1.23432e-18" },
2577 { 1.234321234321234e-17L, "1.23432e-17" },
2578 { 1.234321234321234e-16L, "1.23432e-16" },
2579 { 1.234321234321234e-15L, "1.23432e-15" },
2580 { 1.234321234321234e-14L, "1.23432e-14" },
2581 { 1.234321234321234e-13L, "1.23432e-13" },
2582 { 1.234321234321234e-12L, "1.23432e-12" },
2583 { 1.234321234321234e-11L, "1.23432e-11" },
2584 { 1.234321234321234e-10L, "1.23432e-10" },
2585 { 1.234321234321234e-9L, "1.23432e-09" },
2586 { 1.234321234321234e-8L, "1.23432e-08" },
2587 { 1.234321234321234e-7L, "1.23432e-07" },
2588 { 1.234321234321234e-6L, "1.23432e-06" },
2589 { 1.234321234321234e-5L, "1.23432e-05" },
2590 { 1.234321234321234e-4L, "0.000123432" },
2591 { 1.234321234321234e-3L, "0.00123432" },
2592 { 1.234321234321234e-2L, "0.0123432" },
2593 { 1.234321234321234e-1L, "0.123432" },
2594 { 1.234321234321234L, "1.23432" },
2595 { 1.234321234321234e1L, "12.3432" },
2596 { 1.234321234321234e2L, "123.432" },
2597 { 1.234321234321234e3L, "1234.32" },
2598 { 1.234321234321234e4L, "12343.2" },
2599 { 1.234321234321234e5L, "123432" },
2600 { 1.234321234321234e6L, "1.23432e+06" },
2601 { 1.234321234321234e7L, "1.23432e+07" },
2602 { 1.234321234321234e8L, "1.23432e+08" },
2603 { 1.234321234321234e9L, "1.23432e+09" },
2604 { 1.234321234321234e10L, "1.23432e+10" },
2605 { 1.234321234321234e11L, "1.23432e+11" },
2606 { 1.234321234321234e12L, "1.23432e+12" },
2607 { 1.234321234321234e13L, "1.23432e+13" },
2608 { 1.234321234321234e14L, "1.23432e+14" },
2609 { 1.234321234321234e15L, "1.23432e+15" },
2610 { 1.234321234321234e16L, "1.23432e+16" },
2611 { 1.234321234321234e17L, "1.23432e+17" },
2612 { 1.234321234321234e18L, "1.23432e+18" },
2613 { 1.234321234321234e19L, "1.23432e+19" },
2614 { 1.234321234321234e20L, "1.23432e+20" },
2615 { 1.234321234321234e21L, "1.23432e+21" },
2616 { 1.234321234321234e22L, "1.23432e+22" },
2617 { 1.234321234321234e23L, "1.23432e+23" },
2618 { 1.234321234321234e24L, "1.23432e+24" },
2619 { 1.234321234321234e25L, "1.23432e+25" },
2620 { 1.234321234321234e26L, "1.23432e+26" },
2621 { 1.234321234321234e27L, "1.23432e+27" },
2622 { 1.234321234321234e28L, "1.23432e+28" },
2623 { 1.234321234321234e29L, "1.23432e+29" },
2624 { 1.234321234321234e30L, "1.23432e+30" },
2625 { 1.234321234321234e31L, "1.23432e+31" },
2626 { 1.234321234321234e32L, "1.23432e+32" },
2627 { 1.234321234321234e33L, "1.23432e+33" },
2628 { 1.234321234321234e34L, "1.23432e+34" },
2629 { 1.234321234321234e35L, "1.23432e+35" },
2630 { 1.234321234321234e36L, "1.23432e+36" }
2633 for (k = 0; k < SIZEOF (data); k++)
2637 my_snprintf (result, sizeof (result), "%Lg", data[k].value);
2638 const char *expected = data[k].string;
2639 ASSERT (strcmp (result, expected) == 0
2640 /* Some implementations produce exponents with 3 digits. */
2641 || (expected[strlen (expected) - 4] == 'e'
2642 && strlen (result) == strlen (expected) + 1
2643 && memcmp (result, expected, strlen (expected) - 2) == 0
2644 && result[strlen (expected) - 2] == '0'
2645 && strcmp (result + strlen (expected) - 1,
2646 expected + strlen (expected) - 2)
2648 ASSERT (retval == strlen (result));
2652 { /* A negative number. */
2655 my_snprintf (result, sizeof (result), "%Lg %d", -0.03125L, 33, 44, 55);
2656 ASSERT (strcmp (result, "-0.03125 33") == 0);
2657 ASSERT (retval == strlen (result));
2660 { /* Positive zero. */
2663 my_snprintf (result, sizeof (result), "%Lg %d", 0.0L, 33, 44, 55);
2664 ASSERT (strcmp (result, "0 33") == 0);
2665 ASSERT (retval == strlen (result));
2668 { /* Negative zero. */
2671 my_snprintf (result, sizeof (result), "%Lg %d", -zerol, 33, 44, 55);
2672 if (have_minus_zero ())
2673 ASSERT (strcmp (result, "-0 33") == 0);
2674 ASSERT (retval == strlen (result));
2677 { /* Positive infinity. */
2680 my_snprintf (result, sizeof (result), "%Lg %d", 1.0L / 0.0L, 33, 44, 55);
2681 ASSERT (strcmp (result, "inf 33") == 0
2682 || strcmp (result, "infinity 33") == 0);
2683 ASSERT (retval == strlen (result));
2686 { /* Negative infinity. */
2689 my_snprintf (result, sizeof (result), "%Lg %d", -1.0L / 0.0L, 33, 44, 55);
2690 ASSERT (strcmp (result, "-inf 33") == 0
2691 || strcmp (result, "-infinity 33") == 0);
2692 ASSERT (retval == strlen (result));
2698 my_snprintf (result, sizeof (result), "%Lg %d", NaNl (), 33, 44, 55);
2699 ASSERT (strlen (result) >= 3 + 3
2700 && strisnan (result, 0, strlen (result) - 3, 0)
2701 && strcmp (result + strlen (result) - 3, " 33") == 0);
2702 ASSERT (retval == strlen (result));
2704 #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_))
2706 static union { unsigned int word[4]; long double value; } x =
2707 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2710 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2711 ASSERT (strlen (result) >= 3 + 3
2712 && strisnan (result, 0, strlen (result) - 3, 0)
2713 && strcmp (result + strlen (result) - 3, " 33") == 0);
2714 ASSERT (retval == strlen (result));
2717 /* Signalling NaN. */
2718 static union { unsigned int word[4]; long double value; } x =
2719 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2722 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2723 ASSERT (strlen (result) >= 3 + 3
2724 && strisnan (result, 0, strlen (result) - 3, 0)
2725 && strcmp (result + strlen (result) - 3, " 33") == 0);
2726 ASSERT (retval == strlen (result));
2728 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2729 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2730 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2731 Application Architecture.
2732 Table 5-2 "Floating-Point Register Encodings"
2733 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2736 static union { unsigned int word[4]; long double value; } x =
2737 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2740 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2741 ASSERT (strlen (result) >= 3 + 3
2742 && strisnan (result, 0, strlen (result) - 3, 0)
2743 && strcmp (result + strlen (result) - 3, " 33") == 0);
2744 ASSERT (retval == strlen (result));
2746 { /* Pseudo-Infinity. */
2747 static union { unsigned int word[4]; long double value; } x =
2748 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2751 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2752 ASSERT (strlen (result) >= 3 + 3
2753 && strisnan (result, 0, strlen (result) - 3, 0)
2754 && strcmp (result + strlen (result) - 3, " 33") == 0);
2755 ASSERT (retval == strlen (result));
2757 { /* Pseudo-Zero. */
2758 static union { unsigned int word[4]; long double value; } x =
2759 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2762 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2763 ASSERT (strlen (result) >= 3 + 3
2764 && strisnan (result, 0, strlen (result) - 3, 0)
2765 && strcmp (result + strlen (result) - 3, " 33") == 0);
2766 ASSERT (retval == strlen (result));
2768 { /* Unnormalized number. */
2769 static union { unsigned int word[4]; long double value; } x =
2770 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2773 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2774 ASSERT (strlen (result) >= 3 + 3
2775 && strisnan (result, 0, strlen (result) - 3, 0)
2776 && strcmp (result + strlen (result) - 3, " 33") == 0);
2777 ASSERT (retval == strlen (result));
2779 { /* Pseudo-Denormal. */
2780 static union { unsigned int word[4]; long double value; } x =
2781 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2784 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2785 ASSERT (strlen (result) >= 3 + 3
2786 && strisnan (result, 0, strlen (result) - 3, 0)
2787 && strcmp (result + strlen (result) - 3, " 33") == 0);
2788 ASSERT (retval == strlen (result));
2795 my_snprintf (result, sizeof (result), "%10Lg %d", 1.75L, 33, 44, 55);
2796 ASSERT (strcmp (result, " 1.75 33") == 0);
2797 ASSERT (retval == strlen (result));
2803 my_snprintf (result, sizeof (result), "%-10Lg %d", 1.75L, 33, 44, 55);
2804 ASSERT (strcmp (result, "1.75 33") == 0);
2805 ASSERT (retval == strlen (result));
2808 { /* FLAG_SHOWSIGN. */
2811 my_snprintf (result, sizeof (result), "%+Lg %d", 1.75L, 33, 44, 55);
2812 ASSERT (strcmp (result, "+1.75 33") == 0);
2813 ASSERT (retval == strlen (result));
2819 my_snprintf (result, sizeof (result), "% Lg %d", 1.75L, 33, 44, 55);
2820 ASSERT (strcmp (result, " 1.75 33") == 0);
2821 ASSERT (retval == strlen (result));
2827 my_snprintf (result, sizeof (result), "%#Lg %d", 1.75L, 33, 44, 55);
2828 ASSERT (strcmp (result, "1.75000 33") == 0);
2829 ASSERT (retval == strlen (result));
2835 my_snprintf (result, sizeof (result), "%#.Lg %d", 1.75L, 33, 44, 55);
2836 ASSERT (strcmp (result, "2. 33") == 0);
2837 ASSERT (retval == strlen (result));
2843 my_snprintf (result, sizeof (result), "%#.Lg %d", 9.75L, 33, 44, 55);
2844 ASSERT (strcmp (result, "1.e+01 33") == 0
2845 || strcmp (result, "1.e+001 33") == 0);
2846 ASSERT (retval == strlen (result));
2849 { /* FLAG_ZERO with finite number. */
2852 my_snprintf (result, sizeof (result), "%010Lg %d", 1234.0L, 33, 44, 55);
2853 ASSERT (strcmp (result, "0000001234 33") == 0);
2854 ASSERT (retval == strlen (result));
2857 { /* FLAG_ZERO with infinite number. */
2860 my_snprintf (result, sizeof (result), "%015Lg %d", -1.0L / 0.0L, 33, 44, 55);
2861 ASSERT (strcmp (result, " -inf 33") == 0
2862 || strcmp (result, " -infinity 33") == 0);
2863 ASSERT (retval == strlen (result));
2866 { /* FLAG_ZERO with NaN. */
2869 my_snprintf (result, sizeof (result), "%050Lg %d", NaNl (), 33, 44, 55);
2870 ASSERT (strlen (result) == 50 + 3
2871 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2872 && strcmp (result + strlen (result) - 3, " 33") == 0);
2873 ASSERT (retval == strlen (result));
2879 my_snprintf (result, sizeof (result), "%.Lg %d", 1234.0L, 33, 44, 55);
2880 ASSERT (strcmp (result, "1e+03 33") == 0
2881 || strcmp (result, "1e+003 33") == 0);
2882 ASSERT (retval == strlen (result));
2885 { /* Precision with no rounding. */
2888 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.951L, 33, 44, 55);
2889 ASSERT (strcmp (result, "999.95 33") == 0);
2890 ASSERT (retval == strlen (result));
2893 { /* Precision with rounding. */
2896 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.996L, 33, 44, 55);
2897 ASSERT (strcmp (result, "1000 33") == 0);
2898 ASSERT (retval == strlen (result));
2901 /* Test the support of the %n format directive. */
2907 my_snprintf (result, sizeof (result), "%d %n", 123, &count, 33, 44, 55);
2908 ASSERT (strcmp (result, "123 ") == 0);
2909 ASSERT (retval == strlen (result));
2910 ASSERT (count == 4);
2913 /* Test the support of the POSIX/XSI format strings with positions. */
2918 my_snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
2919 ASSERT (strcmp (result, "55 33") == 0);
2920 ASSERT (retval == strlen (result));
2923 /* Test the support of the grouping flag. */
2928 my_snprintf (result, sizeof (result), "%'d %d", 1234567, 99);
2929 ASSERT (result[strlen (result) - 1] == '9');
2930 ASSERT (retval == strlen (result));
2933 /* Test the support of the left-adjust flag. */
2938 my_snprintf (result, sizeof (result), "a%*sc", -3, "b");
2939 ASSERT (strcmp (result, "ab c") == 0);
2940 ASSERT (retval == strlen (result));
2946 my_snprintf (result, sizeof (result), "a%-*sc", 3, "b");
2947 ASSERT (strcmp (result, "ab c") == 0);
2948 ASSERT (retval == strlen (result));
2954 my_snprintf (result, sizeof (result), "a%-*sc", -3, "b");
2955 ASSERT (strcmp (result, "ab c") == 0);
2956 ASSERT (retval == strlen (result));
2959 /* Test the support of large precision. */
2964 my_snprintf (result, sizeof (result), "%.4000d %d", 1234567, 99);
2966 for (i = 0; i < 4000 - 7; i++)
2967 ASSERT (result[i] == '0');
2968 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2969 ASSERT (retval == strlen (result));
2975 my_snprintf (result, sizeof (result), "%.*d %d", 4000, 1234567, 99);
2977 for (i = 0; i < 4000 - 7; i++)
2978 ASSERT (result[i] == '0');
2979 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2980 ASSERT (retval == strlen (result));
2986 my_snprintf (result, sizeof (result), "%.4000d %d", -1234567, 99);
2988 ASSERT (result[0] == '-');
2989 for (i = 0; i < 4000 - 7; i++)
2990 ASSERT (result[1 + i] == '0');
2991 ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
2992 ASSERT (retval == strlen (result));
2998 my_snprintf (result, sizeof (result), "%.4000u %d", 1234567, 99);
3000 for (i = 0; i < 4000 - 7; i++)
3001 ASSERT (result[i] == '0');
3002 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
3003 ASSERT (retval == strlen (result));
3009 my_snprintf (result, sizeof (result), "%.4000o %d", 1234567, 99);
3011 for (i = 0; i < 4000 - 7; i++)
3012 ASSERT (result[i] == '0');
3013 ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
3014 ASSERT (retval == strlen (result));
3020 my_snprintf (result, sizeof (result), "%.4000x %d", 1234567, 99);
3022 for (i = 0; i < 4000 - 6; i++)
3023 ASSERT (result[i] == '0');
3024 ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
3025 ASSERT (retval == strlen (result));
3031 my_snprintf (result, sizeof (result), "%#.4000x %d", 1234567, 99);
3033 ASSERT (result[0] == '0');
3034 ASSERT (result[1] == 'x');
3035 for (i = 0; i < 4000 - 6; i++)
3036 ASSERT (result[2 + i] == '0');
3037 ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
3038 ASSERT (retval == strlen (result));
3047 for (i = 0; i < sizeof (input) - 1; i++)
3048 input[i] = 'a' + ((1000000 / (i + 1)) % 26);
3050 retval = my_snprintf (result, sizeof (result), "%.4000s %d", input, 99);
3051 ASSERT (memcmp (result, input, 4000) == 0);
3052 ASSERT (strcmp (result + 4000, " 99") == 0);
3053 ASSERT (retval == strlen (result));