1 /* Test of POSIX compatible vsnprintf() and snprintf() functions.
2 Copyright (C) 2007-2011 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. */
19 #include "minus-zero.h"
23 /* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0. */
27 static double plus_zero = 0.0;
28 double minus_zero = minus_zerod;
29 return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
32 /* Representation of an 80-bit 'long double' as an initializer for a sequence
33 of 'unsigned int' words. */
34 #ifdef WORDS_BIGENDIAN
35 # define LDBL80_WORDS(exponent,manthi,mantlo) \
36 { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
37 ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16), \
38 (unsigned int) (mantlo) << 16 \
41 # define LDBL80_WORDS(exponent,manthi,mantlo) \
42 { mantlo, manthi, exponent }
46 strmatch (const char *pattern, const char *string)
48 if (strlen (pattern) != strlen (string))
50 for (; *pattern != '\0'; pattern++, string++)
51 if (*pattern != '*' && *string != *pattern)
56 /* Test whether string[start_index..end_index-1] is a valid textual
57 representation of NaN. */
59 strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
61 if (start_index < end_index)
63 if (string[start_index] == '-')
65 if (start_index + 3 <= end_index
66 && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
69 if (start_index == end_index
70 || (string[start_index] == '(' && string[end_index - 1] == ')'))
78 test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
83 /* Test return value convention. */
85 for (size = 0; size <= 8; size++)
89 memcpy (buf, "DEADBEEF", 8);
90 retval = my_snprintf (buf, size, "%d", 12345);
96 ASSERT (memcmp (buf, "12345", size - 1) == 0);
97 ASSERT (buf[size - 1] == '\0');
99 ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
103 ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
107 /* Test support of size specifiers as in C99. */
112 my_snprintf (result, sizeof (result), "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
113 ASSERT (strcmp (result, "12345671 33") == 0);
114 ASSERT (retval == strlen (result));
120 my_snprintf (result, sizeof (result), "%zu %d", (size_t) 12345672, 33, 44, 55);
121 ASSERT (strcmp (result, "12345672 33") == 0);
122 ASSERT (retval == strlen (result));
128 my_snprintf (result, sizeof (result), "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
129 ASSERT (strcmp (result, "12345673 33") == 0);
130 ASSERT (retval == strlen (result));
136 my_snprintf (result, sizeof (result), "%Lg %d", (long double) 1.5, 33, 44, 55);
137 ASSERT (strcmp (result, "1.5 33") == 0);
138 ASSERT (retval == strlen (result));
141 /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
142 output of floating-point numbers. */
144 { /* A positive number. */
147 my_snprintf (result, sizeof (result), "%a %d", 3.1416015625, 33, 44, 55);
148 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
149 || strcmp (result, "0x3.244p+0 33") == 0
150 || strcmp (result, "0x6.488p-1 33") == 0
151 || strcmp (result, "0xc.91p-2 33") == 0);
152 ASSERT (retval == strlen (result));
155 { /* A negative number. */
158 my_snprintf (result, sizeof (result), "%A %d", -3.1416015625, 33, 44, 55);
159 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
160 || strcmp (result, "-0X3.244P+0 33") == 0
161 || strcmp (result, "-0X6.488P-1 33") == 0
162 || strcmp (result, "-0XC.91P-2 33") == 0);
163 ASSERT (retval == strlen (result));
166 { /* Positive zero. */
169 my_snprintf (result, sizeof (result), "%a %d", 0.0, 33, 44, 55);
170 ASSERT (strcmp (result, "0x0p+0 33") == 0);
171 ASSERT (retval == strlen (result));
174 { /* Negative zero. */
177 my_snprintf (result, sizeof (result), "%a %d", minus_zerod, 33, 44, 55);
178 if (have_minus_zero ())
179 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
180 ASSERT (retval == strlen (result));
183 { /* Positive infinity. */
186 my_snprintf (result, sizeof (result), "%a %d", Infinityd (), 33, 44, 55);
187 ASSERT (strcmp (result, "inf 33") == 0);
188 ASSERT (retval == strlen (result));
191 { /* Negative infinity. */
194 my_snprintf (result, sizeof (result), "%a %d", - Infinityd (), 33, 44, 55);
195 ASSERT (strcmp (result, "-inf 33") == 0);
196 ASSERT (retval == strlen (result));
202 my_snprintf (result, sizeof (result), "%a %d", NaNd (), 33, 44, 55);
203 ASSERT (strlen (result) >= 3 + 3
204 && strisnan (result, 0, strlen (result) - 3, 0)
205 && strcmp (result + strlen (result) - 3, " 33") == 0);
206 ASSERT (retval == strlen (result));
209 { /* Rounding near the decimal point. */
212 my_snprintf (result, sizeof (result), "%.0a %d", 1.5, 33, 44, 55);
213 ASSERT (strcmp (result, "0x2p+0 33") == 0
214 || strcmp (result, "0x3p-1 33") == 0
215 || strcmp (result, "0x6p-2 33") == 0
216 || strcmp (result, "0xcp-3 33") == 0);
217 ASSERT (retval == strlen (result));
220 { /* Rounding with precision 0. */
223 my_snprintf (result, sizeof (result), "%.0a %d", 1.51, 33, 44, 55);
224 ASSERT (strcmp (result, "0x2p+0 33") == 0
225 || strcmp (result, "0x3p-1 33") == 0
226 || strcmp (result, "0x6p-2 33") == 0
227 || strcmp (result, "0xcp-3 33") == 0);
228 ASSERT (retval == strlen (result));
231 { /* Rounding with precision 1. */
234 my_snprintf (result, sizeof (result), "%.1a %d", 1.51, 33, 44, 55);
235 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
236 || strcmp (result, "0x3.0p-1 33") == 0
237 || strcmp (result, "0x6.1p-2 33") == 0
238 || strcmp (result, "0xc.1p-3 33") == 0);
239 ASSERT (retval == strlen (result));
242 { /* Rounding with precision 2. */
245 my_snprintf (result, sizeof (result), "%.2a %d", 1.51, 33, 44, 55);
246 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
247 || strcmp (result, "0x3.05p-1 33") == 0
248 || strcmp (result, "0x6.0ap-2 33") == 0
249 || strcmp (result, "0xc.14p-3 33") == 0);
250 ASSERT (retval == strlen (result));
253 { /* Rounding with precision 3. */
256 my_snprintf (result, sizeof (result), "%.3a %d", 1.51, 33, 44, 55);
257 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
258 || strcmp (result, "0x3.052p-1 33") == 0
259 || strcmp (result, "0x6.0a4p-2 33") == 0
260 || strcmp (result, "0xc.148p-3 33") == 0);
261 ASSERT (retval == strlen (result));
264 { /* Rounding can turn a ...FFF into a ...000. */
267 my_snprintf (result, sizeof (result), "%.3a %d", 1.49999, 33, 44, 55);
268 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
269 || strcmp (result, "0x3.000p-1 33") == 0
270 || strcmp (result, "0x6.000p-2 33") == 0
271 || strcmp (result, "0xc.000p-3 33") == 0);
272 ASSERT (retval == strlen (result));
275 { /* Rounding can turn a ...FFF into a ...000.
276 This shows a MacOS X 10.3.9 (Darwin 7.9) bug. */
279 my_snprintf (result, sizeof (result), "%.1a %d", 1.999, 33, 44, 55);
280 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
281 || strcmp (result, "0x2.0p+0 33") == 0
282 || strcmp (result, "0x4.0p-1 33") == 0
283 || strcmp (result, "0x8.0p-2 33") == 0);
284 ASSERT (retval == strlen (result));
290 my_snprintf (result, sizeof (result), "%10a %d", 1.75, 33, 44, 55);
291 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
292 || strcmp (result, " 0x3.8p-1 33") == 0
293 || strcmp (result, " 0x7p-2 33") == 0
294 || strcmp (result, " 0xep-3 33") == 0);
295 ASSERT (retval == strlen (result));
298 { /* Small precision. */
301 my_snprintf (result, sizeof (result), "%.10a %d", 1.75, 33, 44, 55);
302 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
303 || strcmp (result, "0x3.8000000000p-1 33") == 0
304 || strcmp (result, "0x7.0000000000p-2 33") == 0
305 || strcmp (result, "0xe.0000000000p-3 33") == 0);
306 ASSERT (retval == strlen (result));
309 { /* Large precision. */
312 my_snprintf (result, sizeof (result), "%.50a %d", 1.75, 33, 44, 55);
313 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
314 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
315 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
316 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
317 ASSERT (retval == strlen (result));
323 my_snprintf (result, sizeof (result), "%-10a %d", 1.75, 33, 44, 55);
324 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
325 || strcmp (result, "0x3.8p-1 33") == 0
326 || strcmp (result, "0x7p-2 33") == 0
327 || strcmp (result, "0xep-3 33") == 0);
328 ASSERT (retval == strlen (result));
331 { /* FLAG_SHOWSIGN. */
334 my_snprintf (result, sizeof (result), "%+a %d", 1.75, 33, 44, 55);
335 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
336 || strcmp (result, "+0x3.8p-1 33") == 0
337 || strcmp (result, "+0x7p-2 33") == 0
338 || strcmp (result, "+0xep-3 33") == 0);
339 ASSERT (retval == strlen (result));
345 my_snprintf (result, sizeof (result), "% a %d", 1.75, 33, 44, 55);
346 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
347 || strcmp (result, " 0x3.8p-1 33") == 0
348 || strcmp (result, " 0x7p-2 33") == 0
349 || strcmp (result, " 0xep-3 33") == 0);
350 ASSERT (retval == strlen (result));
356 my_snprintf (result, sizeof (result), "%#a %d", 1.75, 33, 44, 55);
357 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
358 || strcmp (result, "0x3.8p-1 33") == 0
359 || strcmp (result, "0x7.p-2 33") == 0
360 || strcmp (result, "0xe.p-3 33") == 0);
361 ASSERT (retval == strlen (result));
367 my_snprintf (result, sizeof (result), "%#a %d", 1.0, 33, 44, 55);
368 ASSERT (strcmp (result, "0x1.p+0 33") == 0
369 || strcmp (result, "0x2.p-1 33") == 0
370 || strcmp (result, "0x4.p-2 33") == 0
371 || strcmp (result, "0x8.p-3 33") == 0);
372 ASSERT (retval == strlen (result));
375 { /* FLAG_ZERO with finite number. */
378 my_snprintf (result, sizeof (result), "%010a %d", 1.75, 33, 44, 55);
379 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
380 || strcmp (result, "0x003.8p-1 33") == 0
381 || strcmp (result, "0x00007p-2 33") == 0
382 || strcmp (result, "0x0000ep-3 33") == 0);
383 ASSERT (retval == strlen (result));
386 { /* FLAG_ZERO with infinite number. */
389 my_snprintf (result, sizeof (result), "%010a %d", Infinityd (), 33, 44, 55);
390 /* "0000000inf 33" is not a valid result; see
391 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
392 ASSERT (strcmp (result, " inf 33") == 0);
393 ASSERT (retval == strlen (result));
396 { /* FLAG_ZERO with NaN. */
399 my_snprintf (result, sizeof (result), "%050a %d", NaNd (), 33, 44, 55);
400 /* "0000000nan 33" is not a valid result; see
401 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
402 ASSERT (strlen (result) == 50 + 3
403 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
404 && strcmp (result + strlen (result) - 3, " 33") == 0);
405 ASSERT (retval == strlen (result));
408 { /* A positive number. */
411 my_snprintf (result, sizeof (result), "%La %d", 3.1416015625L, 33, 44, 55);
412 ASSERT (strcmp (result, "0x1.922p+1 33") == 0
413 || strcmp (result, "0x3.244p+0 33") == 0
414 || strcmp (result, "0x6.488p-1 33") == 0
415 || strcmp (result, "0xc.91p-2 33") == 0);
416 ASSERT (retval == strlen (result));
419 { /* A negative number. */
422 my_snprintf (result, sizeof (result), "%LA %d", -3.1416015625L, 33, 44, 55);
423 ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
424 || strcmp (result, "-0X3.244P+0 33") == 0
425 || strcmp (result, "-0X6.488P-1 33") == 0
426 || strcmp (result, "-0XC.91P-2 33") == 0);
427 ASSERT (retval == strlen (result));
430 { /* Positive zero. */
433 my_snprintf (result, sizeof (result), "%La %d", 0.0L, 33, 44, 55);
434 ASSERT (strcmp (result, "0x0p+0 33") == 0);
435 ASSERT (retval == strlen (result));
438 { /* Negative zero. */
441 my_snprintf (result, sizeof (result), "%La %d", minus_zerol, 33, 44, 55);
442 if (have_minus_zero ())
443 ASSERT (strcmp (result, "-0x0p+0 33") == 0);
444 ASSERT (retval == strlen (result));
447 { /* Positive infinity. */
450 my_snprintf (result, sizeof (result), "%La %d", Infinityl (), 33, 44, 55);
451 ASSERT (strcmp (result, "inf 33") == 0);
452 ASSERT (retval == strlen (result));
455 { /* Negative infinity. */
458 my_snprintf (result, sizeof (result), "%La %d", - Infinityl (), 33, 44, 55);
459 ASSERT (strcmp (result, "-inf 33") == 0);
460 ASSERT (retval == strlen (result));
466 my_snprintf (result, sizeof (result), "%La %d", NaNl (), 33, 44, 55);
467 ASSERT (strlen (result) >= 3 + 3
468 && strisnan (result, 0, strlen (result) - 3, 0)
469 && strcmp (result + strlen (result) - 3, " 33") == 0);
470 ASSERT (retval == strlen (result));
472 #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_))
474 static union { unsigned int word[4]; long double value; } x =
475 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
478 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
479 ASSERT (strlen (result) >= 3 + 3
480 && strisnan (result, 0, strlen (result) - 3, 0)
481 && strcmp (result + strlen (result) - 3, " 33") == 0);
482 ASSERT (retval == strlen (result));
485 /* Signalling NaN. */
486 static union { unsigned int word[4]; long double value; } x =
487 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
490 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
491 ASSERT (strlen (result) >= 3 + 3
492 && strisnan (result, 0, strlen (result) - 3, 0)
493 && strcmp (result + strlen (result) - 3, " 33") == 0);
494 ASSERT (retval == strlen (result));
496 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
497 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
498 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
499 Application Architecture.
500 Table 5-2 "Floating-Point Register Encodings"
501 Figure 5-6 "Memory to Floating-Point Register Data Translation"
504 static union { unsigned int word[4]; long double value; } x =
505 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
508 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
509 ASSERT (strlen (result) >= 3 + 3
510 && strisnan (result, 0, strlen (result) - 3, 0)
511 && strcmp (result + strlen (result) - 3, " 33") == 0);
512 ASSERT (retval == strlen (result));
514 { /* Pseudo-Infinity. */
515 static union { unsigned int word[4]; long double value; } x =
516 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
519 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
520 ASSERT (strlen (result) >= 3 + 3
521 && strisnan (result, 0, strlen (result) - 3, 0)
522 && strcmp (result + strlen (result) - 3, " 33") == 0);
523 ASSERT (retval == strlen (result));
526 static union { unsigned int word[4]; long double value; } x =
527 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
530 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
531 ASSERT (strlen (result) >= 3 + 3
532 && strisnan (result, 0, strlen (result) - 3, 0)
533 && strcmp (result + strlen (result) - 3, " 33") == 0);
534 ASSERT (retval == strlen (result));
536 { /* Unnormalized number. */
537 static union { unsigned int word[4]; long double value; } x =
538 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
541 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
542 ASSERT (strlen (result) >= 3 + 3
543 && strisnan (result, 0, strlen (result) - 3, 0)
544 && strcmp (result + strlen (result) - 3, " 33") == 0);
545 ASSERT (retval == strlen (result));
547 { /* Pseudo-Denormal. */
548 static union { unsigned int word[4]; long double value; } x =
549 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
552 my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
553 ASSERT (strlen (result) >= 3 + 3
554 && strisnan (result, 0, strlen (result) - 3, 0)
555 && strcmp (result + strlen (result) - 3, " 33") == 0);
556 ASSERT (retval == strlen (result));
560 { /* Rounding near the decimal point. */
563 my_snprintf (result, sizeof (result), "%.0La %d", 1.5L, 33, 44, 55);
564 ASSERT (strcmp (result, "0x2p+0 33") == 0
565 || strcmp (result, "0x3p-1 33") == 0
566 || strcmp (result, "0x6p-2 33") == 0
567 || strcmp (result, "0xcp-3 33") == 0);
568 ASSERT (retval == strlen (result));
571 { /* Rounding with precision 0. */
574 my_snprintf (result, sizeof (result), "%.0La %d", 1.51L, 33, 44, 55);
575 ASSERT (strcmp (result, "0x2p+0 33") == 0
576 || strcmp (result, "0x3p-1 33") == 0
577 || strcmp (result, "0x6p-2 33") == 0
578 || strcmp (result, "0xcp-3 33") == 0);
579 ASSERT (retval == strlen (result));
582 { /* Rounding with precision 1. */
585 my_snprintf (result, sizeof (result), "%.1La %d", 1.51L, 33, 44, 55);
586 ASSERT (strcmp (result, "0x1.8p+0 33") == 0
587 || strcmp (result, "0x3.0p-1 33") == 0
588 || strcmp (result, "0x6.1p-2 33") == 0
589 || strcmp (result, "0xc.1p-3 33") == 0);
590 ASSERT (retval == strlen (result));
593 { /* Rounding with precision 2. */
596 my_snprintf (result, sizeof (result), "%.2La %d", 1.51L, 33, 44, 55);
597 ASSERT (strcmp (result, "0x1.83p+0 33") == 0
598 || strcmp (result, "0x3.05p-1 33") == 0
599 || strcmp (result, "0x6.0ap-2 33") == 0
600 || strcmp (result, "0xc.14p-3 33") == 0);
601 ASSERT (retval == strlen (result));
604 { /* Rounding with precision 3. */
607 my_snprintf (result, sizeof (result), "%.3La %d", 1.51L, 33, 44, 55);
608 ASSERT (strcmp (result, "0x1.829p+0 33") == 0
609 || strcmp (result, "0x3.052p-1 33") == 0
610 || strcmp (result, "0x6.0a4p-2 33") == 0
611 || strcmp (result, "0xc.148p-3 33") == 0);
612 ASSERT (retval == strlen (result));
615 { /* Rounding can turn a ...FFF into a ...000. */
618 my_snprintf (result, sizeof (result), "%.3La %d", 1.49999L, 33, 44, 55);
619 ASSERT (strcmp (result, "0x1.800p+0 33") == 0
620 || strcmp (result, "0x3.000p-1 33") == 0
621 || strcmp (result, "0x6.000p-2 33") == 0
622 || strcmp (result, "0xc.000p-3 33") == 0);
623 ASSERT (retval == strlen (result));
626 { /* Rounding can turn a ...FFF into a ...000.
627 This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
628 glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>. */
631 my_snprintf (result, sizeof (result), "%.1La %d", 1.999L, 33, 44, 55);
632 ASSERT (strcmp (result, "0x1.0p+1 33") == 0
633 || strcmp (result, "0x2.0p+0 33") == 0
634 || strcmp (result, "0x4.0p-1 33") == 0
635 || strcmp (result, "0x8.0p-2 33") == 0);
636 ASSERT (retval == strlen (result));
642 my_snprintf (result, sizeof (result), "%10La %d", 1.75L, 33, 44, 55);
643 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
644 || strcmp (result, " 0x3.8p-1 33") == 0
645 || strcmp (result, " 0x7p-2 33") == 0
646 || strcmp (result, " 0xep-3 33") == 0);
647 ASSERT (retval == strlen (result));
650 { /* Small precision. */
653 my_snprintf (result, sizeof (result), "%.10La %d", 1.75L, 33, 44, 55);
654 ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
655 || strcmp (result, "0x3.8000000000p-1 33") == 0
656 || strcmp (result, "0x7.0000000000p-2 33") == 0
657 || strcmp (result, "0xe.0000000000p-3 33") == 0);
658 ASSERT (retval == strlen (result));
661 { /* Large precision. */
664 my_snprintf (result, sizeof (result), "%.50La %d", 1.75L, 33, 44, 55);
665 ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
666 || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
667 || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
668 || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
669 ASSERT (retval == strlen (result));
675 my_snprintf (result, sizeof (result), "%-10La %d", 1.75L, 33, 44, 55);
676 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
677 || strcmp (result, "0x3.8p-1 33") == 0
678 || strcmp (result, "0x7p-2 33") == 0
679 || strcmp (result, "0xep-3 33") == 0);
680 ASSERT (retval == strlen (result));
683 { /* FLAG_SHOWSIGN. */
686 my_snprintf (result, sizeof (result), "%+La %d", 1.75L, 33, 44, 55);
687 ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
688 || strcmp (result, "+0x3.8p-1 33") == 0
689 || strcmp (result, "+0x7p-2 33") == 0
690 || strcmp (result, "+0xep-3 33") == 0);
691 ASSERT (retval == strlen (result));
697 my_snprintf (result, sizeof (result), "% La %d", 1.75L, 33, 44, 55);
698 ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
699 || strcmp (result, " 0x3.8p-1 33") == 0
700 || strcmp (result, " 0x7p-2 33") == 0
701 || strcmp (result, " 0xep-3 33") == 0);
702 ASSERT (retval == strlen (result));
708 my_snprintf (result, sizeof (result), "%#La %d", 1.75L, 33, 44, 55);
709 ASSERT (strcmp (result, "0x1.cp+0 33") == 0
710 || strcmp (result, "0x3.8p-1 33") == 0
711 || strcmp (result, "0x7.p-2 33") == 0
712 || strcmp (result, "0xe.p-3 33") == 0);
713 ASSERT (retval == strlen (result));
719 my_snprintf (result, sizeof (result), "%#La %d", 1.0L, 33, 44, 55);
720 ASSERT (strcmp (result, "0x1.p+0 33") == 0
721 || strcmp (result, "0x2.p-1 33") == 0
722 || strcmp (result, "0x4.p-2 33") == 0
723 || strcmp (result, "0x8.p-3 33") == 0);
724 ASSERT (retval == strlen (result));
727 { /* FLAG_ZERO with finite number. */
730 my_snprintf (result, sizeof (result), "%010La %d", 1.75L, 33, 44, 55);
731 ASSERT (strcmp (result, "0x001.cp+0 33") == 0
732 || strcmp (result, "0x003.8p-1 33") == 0
733 || strcmp (result, "0x00007p-2 33") == 0
734 || strcmp (result, "0x0000ep-3 33") == 0);
735 ASSERT (retval == strlen (result));
738 { /* FLAG_ZERO with infinite number. */
741 my_snprintf (result, sizeof (result), "%010La %d", Infinityl (), 33, 44, 55);
742 /* "0000000inf 33" is not a valid result; see
743 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
744 ASSERT (strcmp (result, " inf 33") == 0);
745 ASSERT (retval == strlen (result));
748 { /* FLAG_ZERO with NaN. */
751 my_snprintf (result, sizeof (result), "%050La %d", NaNl (), 33, 44, 55);
752 /* "0000000nan 33" is not a valid result; see
753 <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
754 ASSERT (strlen (result) == 50 + 3
755 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
756 && strcmp (result + strlen (result) - 3, " 33") == 0);
757 ASSERT (retval == strlen (result));
760 /* Test the support of the %f format directive. */
762 { /* A positive number. */
765 my_snprintf (result, sizeof (result), "%f %d", 12.75, 33, 44, 55);
766 ASSERT (strcmp (result, "12.750000 33") == 0);
767 ASSERT (retval == strlen (result));
770 { /* A larger positive number. */
773 my_snprintf (result, sizeof (result), "%f %d", 1234567.0, 33, 44, 55);
774 ASSERT (strcmp (result, "1234567.000000 33") == 0);
775 ASSERT (retval == strlen (result));
778 { /* Small and large positive numbers. */
779 static struct { double value; const char *string; } data[] =
781 { 1.234321234321234e-37, "0.000000" },
782 { 1.234321234321234e-36, "0.000000" },
783 { 1.234321234321234e-35, "0.000000" },
784 { 1.234321234321234e-34, "0.000000" },
785 { 1.234321234321234e-33, "0.000000" },
786 { 1.234321234321234e-32, "0.000000" },
787 { 1.234321234321234e-31, "0.000000" },
788 { 1.234321234321234e-30, "0.000000" },
789 { 1.234321234321234e-29, "0.000000" },
790 { 1.234321234321234e-28, "0.000000" },
791 { 1.234321234321234e-27, "0.000000" },
792 { 1.234321234321234e-26, "0.000000" },
793 { 1.234321234321234e-25, "0.000000" },
794 { 1.234321234321234e-24, "0.000000" },
795 { 1.234321234321234e-23, "0.000000" },
796 { 1.234321234321234e-22, "0.000000" },
797 { 1.234321234321234e-21, "0.000000" },
798 { 1.234321234321234e-20, "0.000000" },
799 { 1.234321234321234e-19, "0.000000" },
800 { 1.234321234321234e-18, "0.000000" },
801 { 1.234321234321234e-17, "0.000000" },
802 { 1.234321234321234e-16, "0.000000" },
803 { 1.234321234321234e-15, "0.000000" },
804 { 1.234321234321234e-14, "0.000000" },
805 { 1.234321234321234e-13, "0.000000" },
806 { 1.234321234321234e-12, "0.000000" },
807 { 1.234321234321234e-11, "0.000000" },
808 { 1.234321234321234e-10, "0.000000" },
809 { 1.234321234321234e-9, "0.000000" },
810 { 1.234321234321234e-8, "0.000000" },
811 { 1.234321234321234e-7, "0.000000" },
812 { 1.234321234321234e-6, "0.000001" },
813 { 1.234321234321234e-5, "0.000012" },
814 { 1.234321234321234e-4, "0.000123" },
815 { 1.234321234321234e-3, "0.001234" },
816 { 1.234321234321234e-2, "0.012343" },
817 { 1.234321234321234e-1, "0.123432" },
818 { 1.234321234321234, "1.234321" },
819 { 1.234321234321234e1, "12.343212" },
820 { 1.234321234321234e2, "123.432123" },
821 { 1.234321234321234e3, "1234.321234" },
822 { 1.234321234321234e4, "12343.212343" },
823 { 1.234321234321234e5, "123432.123432" },
824 { 1.234321234321234e6, "1234321.234321" },
825 { 1.234321234321234e7, "12343212.343212" },
826 { 1.234321234321234e8, "123432123.432123" },
827 { 1.234321234321234e9, "1234321234.321234" },
828 { 1.234321234321234e10, "12343212343.2123**" },
829 { 1.234321234321234e11, "123432123432.123***" },
830 { 1.234321234321234e12, "1234321234321.23****" },
831 { 1.234321234321234e13, "12343212343212.3*****" },
832 { 1.234321234321234e14, "123432123432123.******" },
833 { 1.234321234321234e15, "1234321234321234.000000" },
834 { 1.234321234321234e16, "123432123432123**.000000" },
835 { 1.234321234321234e17, "123432123432123***.000000" },
836 { 1.234321234321234e18, "123432123432123****.000000" },
837 { 1.234321234321234e19, "123432123432123*****.000000" },
838 { 1.234321234321234e20, "123432123432123******.000000" },
839 { 1.234321234321234e21, "123432123432123*******.000000" },
840 { 1.234321234321234e22, "123432123432123********.000000" },
841 { 1.234321234321234e23, "123432123432123*********.000000" },
842 { 1.234321234321234e24, "123432123432123**********.000000" },
843 { 1.234321234321234e25, "123432123432123***********.000000" },
844 { 1.234321234321234e26, "123432123432123************.000000" },
845 { 1.234321234321234e27, "123432123432123*************.000000" },
846 { 1.234321234321234e28, "123432123432123**************.000000" },
847 { 1.234321234321234e29, "123432123432123***************.000000" },
848 { 1.234321234321234e30, "123432123432123****************.000000" },
849 { 1.234321234321234e31, "123432123432123*****************.000000" },
850 { 1.234321234321234e32, "123432123432123******************.000000" },
851 { 1.234321234321234e33, "123432123432123*******************.000000" },
852 { 1.234321234321234e34, "123432123432123********************.000000" },
853 { 1.234321234321234e35, "123432123432123*********************.000000" },
854 { 1.234321234321234e36, "123432123432123**********************.000000" }
857 for (k = 0; k < SIZEOF (data); k++)
861 my_snprintf (result, sizeof (result), "%f", data[k].value);
862 ASSERT (strmatch (data[k].string, result));
863 ASSERT (retval == strlen (result));
867 { /* A negative number. */
870 my_snprintf (result, sizeof (result), "%f %d", -0.03125, 33, 44, 55);
871 ASSERT (strcmp (result, "-0.031250 33") == 0);
872 ASSERT (retval == strlen (result));
875 { /* Positive zero. */
878 my_snprintf (result, sizeof (result), "%f %d", 0.0, 33, 44, 55);
879 ASSERT (strcmp (result, "0.000000 33") == 0);
880 ASSERT (retval == strlen (result));
883 { /* Negative zero. */
886 my_snprintf (result, sizeof (result), "%f %d", minus_zerod, 33, 44, 55);
887 if (have_minus_zero ())
888 ASSERT (strcmp (result, "-0.000000 33") == 0);
889 ASSERT (retval == strlen (result));
892 { /* Positive infinity. */
895 my_snprintf (result, sizeof (result), "%f %d", Infinityd (), 33, 44, 55);
896 ASSERT (strcmp (result, "inf 33") == 0
897 || strcmp (result, "infinity 33") == 0);
898 ASSERT (retval == strlen (result));
901 { /* Negative infinity. */
904 my_snprintf (result, sizeof (result), "%f %d", - Infinityd (), 33, 44, 55);
905 ASSERT (strcmp (result, "-inf 33") == 0
906 || strcmp (result, "-infinity 33") == 0);
907 ASSERT (retval == strlen (result));
913 my_snprintf (result, sizeof (result), "%f %d", NaNd (), 33, 44, 55);
914 ASSERT (strlen (result) >= 3 + 3
915 && strisnan (result, 0, strlen (result) - 3, 0)
916 && strcmp (result + strlen (result) - 3, " 33") == 0);
917 ASSERT (retval == strlen (result));
923 my_snprintf (result, sizeof (result), "%10f %d", 1.75, 33, 44, 55);
924 ASSERT (strcmp (result, " 1.750000 33") == 0);
925 ASSERT (retval == strlen (result));
931 my_snprintf (result, sizeof (result), "%-10f %d", 1.75, 33, 44, 55);
932 ASSERT (strcmp (result, "1.750000 33") == 0);
933 ASSERT (retval == strlen (result));
936 { /* FLAG_SHOWSIGN. */
939 my_snprintf (result, sizeof (result), "%+f %d", 1.75, 33, 44, 55);
940 ASSERT (strcmp (result, "+1.750000 33") == 0);
941 ASSERT (retval == strlen (result));
947 my_snprintf (result, sizeof (result), "% f %d", 1.75, 33, 44, 55);
948 ASSERT (strcmp (result, " 1.750000 33") == 0);
949 ASSERT (retval == strlen (result));
955 my_snprintf (result, sizeof (result), "%#f %d", 1.75, 33, 44, 55);
956 ASSERT (strcmp (result, "1.750000 33") == 0);
957 ASSERT (retval == strlen (result));
963 my_snprintf (result, sizeof (result), "%#.f %d", 1.75, 33, 44, 55);
964 ASSERT (strcmp (result, "2. 33") == 0);
965 ASSERT (retval == strlen (result));
968 { /* FLAG_ZERO with finite number. */
971 my_snprintf (result, sizeof (result), "%015f %d", 1234.0, 33, 44, 55);
972 ASSERT (strcmp (result, "00001234.000000 33") == 0);
973 ASSERT (retval == strlen (result));
976 { /* FLAG_ZERO with infinite number. */
979 my_snprintf (result, sizeof (result), "%015f %d", - Infinityd (), 33, 44, 55);
980 ASSERT (strcmp (result, " -inf 33") == 0
981 || strcmp (result, " -infinity 33") == 0);
982 ASSERT (retval == strlen (result));
985 { /* FLAG_ZERO with NaN. */
988 my_snprintf (result, sizeof (result), "%050f %d", NaNd (), 33, 44, 55);
989 ASSERT (strlen (result) == 50 + 3
990 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
991 && strcmp (result + strlen (result) - 3, " 33") == 0);
992 ASSERT (retval == strlen (result));
998 my_snprintf (result, sizeof (result), "%.f %d", 1234.0, 33, 44, 55);
999 ASSERT (strcmp (result, "1234 33") == 0);
1000 ASSERT (retval == strlen (result));
1003 { /* Precision with no rounding. */
1006 my_snprintf (result, sizeof (result), "%.2f %d", 999.951, 33, 44, 55);
1007 ASSERT (strcmp (result, "999.95 33") == 0);
1008 ASSERT (retval == strlen (result));
1011 { /* Precision with rounding. */
1014 my_snprintf (result, sizeof (result), "%.2f %d", 999.996, 33, 44, 55);
1015 ASSERT (strcmp (result, "1000.00 33") == 0);
1016 ASSERT (retval == strlen (result));
1019 { /* A positive number. */
1022 my_snprintf (result, sizeof (result), "%Lf %d", 12.75L, 33, 44, 55);
1023 ASSERT (strcmp (result, "12.750000 33") == 0);
1024 ASSERT (retval == strlen (result));
1027 { /* A larger positive number. */
1030 my_snprintf (result, sizeof (result), "%Lf %d", 1234567.0L, 33, 44, 55);
1031 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1032 ASSERT (retval == strlen (result));
1035 { /* Small and large positive numbers. */
1036 static struct { long double value; const char *string; } data[] =
1038 { 1.234321234321234e-37L, "0.000000" },
1039 { 1.234321234321234e-36L, "0.000000" },
1040 { 1.234321234321234e-35L, "0.000000" },
1041 { 1.234321234321234e-34L, "0.000000" },
1042 { 1.234321234321234e-33L, "0.000000" },
1043 { 1.234321234321234e-32L, "0.000000" },
1044 { 1.234321234321234e-31L, "0.000000" },
1045 { 1.234321234321234e-30L, "0.000000" },
1046 { 1.234321234321234e-29L, "0.000000" },
1047 { 1.234321234321234e-28L, "0.000000" },
1048 { 1.234321234321234e-27L, "0.000000" },
1049 { 1.234321234321234e-26L, "0.000000" },
1050 { 1.234321234321234e-25L, "0.000000" },
1051 { 1.234321234321234e-24L, "0.000000" },
1052 { 1.234321234321234e-23L, "0.000000" },
1053 { 1.234321234321234e-22L, "0.000000" },
1054 { 1.234321234321234e-21L, "0.000000" },
1055 { 1.234321234321234e-20L, "0.000000" },
1056 { 1.234321234321234e-19L, "0.000000" },
1057 { 1.234321234321234e-18L, "0.000000" },
1058 { 1.234321234321234e-17L, "0.000000" },
1059 { 1.234321234321234e-16L, "0.000000" },
1060 { 1.234321234321234e-15L, "0.000000" },
1061 { 1.234321234321234e-14L, "0.000000" },
1062 { 1.234321234321234e-13L, "0.000000" },
1063 { 1.234321234321234e-12L, "0.000000" },
1064 { 1.234321234321234e-11L, "0.000000" },
1065 { 1.234321234321234e-10L, "0.000000" },
1066 { 1.234321234321234e-9L, "0.000000" },
1067 { 1.234321234321234e-8L, "0.000000" },
1068 { 1.234321234321234e-7L, "0.000000" },
1069 { 1.234321234321234e-6L, "0.000001" },
1070 { 1.234321234321234e-5L, "0.000012" },
1071 { 1.234321234321234e-4L, "0.000123" },
1072 { 1.234321234321234e-3L, "0.001234" },
1073 { 1.234321234321234e-2L, "0.012343" },
1074 { 1.234321234321234e-1L, "0.123432" },
1075 { 1.234321234321234L, "1.234321" },
1076 { 1.234321234321234e1L, "12.343212" },
1077 { 1.234321234321234e2L, "123.432123" },
1078 { 1.234321234321234e3L, "1234.321234" },
1079 { 1.234321234321234e4L, "12343.212343" },
1080 { 1.234321234321234e5L, "123432.123432" },
1081 { 1.234321234321234e6L, "1234321.234321" },
1082 { 1.234321234321234e7L, "12343212.343212" },
1083 { 1.234321234321234e8L, "123432123.432123" },
1084 { 1.234321234321234e9L, "1234321234.321234" },
1085 { 1.234321234321234e10L, "12343212343.2123**" },
1086 { 1.234321234321234e11L, "123432123432.123***" },
1087 { 1.234321234321234e12L, "1234321234321.23****" },
1088 { 1.234321234321234e13L, "12343212343212.3*****" },
1089 { 1.234321234321234e14L, "123432123432123.******" },
1090 { 1.234321234321234e15L, "1234321234321234.000000" },
1091 { 1.234321234321234e16L, "123432123432123**.000000" },
1092 { 1.234321234321234e17L, "123432123432123***.000000" },
1093 { 1.234321234321234e18L, "123432123432123****.000000" },
1094 { 1.234321234321234e19L, "123432123432123*****.000000" },
1095 { 1.234321234321234e20L, "123432123432123******.000000" },
1096 { 1.234321234321234e21L, "123432123432123*******.000000" },
1097 { 1.234321234321234e22L, "123432123432123********.000000" },
1098 { 1.234321234321234e23L, "123432123432123*********.000000" },
1099 { 1.234321234321234e24L, "123432123432123**********.000000" },
1100 { 1.234321234321234e25L, "123432123432123***********.000000" },
1101 { 1.234321234321234e26L, "123432123432123************.000000" },
1102 { 1.234321234321234e27L, "123432123432123*************.000000" },
1103 { 1.234321234321234e28L, "123432123432123**************.000000" },
1104 { 1.234321234321234e29L, "123432123432123***************.000000" },
1105 { 1.234321234321234e30L, "123432123432123****************.000000" },
1106 { 1.234321234321234e31L, "123432123432123*****************.000000" },
1107 { 1.234321234321234e32L, "123432123432123******************.000000" },
1108 { 1.234321234321234e33L, "123432123432123*******************.000000" },
1109 { 1.234321234321234e34L, "123432123432123********************.000000" },
1110 { 1.234321234321234e35L, "123432123432123*********************.000000" },
1111 { 1.234321234321234e36L, "123432123432123**********************.000000" }
1114 for (k = 0; k < SIZEOF (data); k++)
1118 my_snprintf (result, sizeof (result), "%Lf", data[k].value);
1119 ASSERT (strmatch (data[k].string, result));
1120 ASSERT (retval == strlen (result));
1124 { /* A negative number. */
1127 my_snprintf (result, sizeof (result), "%Lf %d", -0.03125L, 33, 44, 55);
1128 ASSERT (strcmp (result, "-0.031250 33") == 0);
1129 ASSERT (retval == strlen (result));
1132 { /* Positive zero. */
1135 my_snprintf (result, sizeof (result), "%Lf %d", 0.0L, 33, 44, 55);
1136 ASSERT (strcmp (result, "0.000000 33") == 0);
1137 ASSERT (retval == strlen (result));
1140 { /* Negative zero. */
1143 my_snprintf (result, sizeof (result), "%Lf %d", minus_zerol, 33, 44, 55);
1144 if (have_minus_zero ())
1145 ASSERT (strcmp (result, "-0.000000 33") == 0);
1146 ASSERT (retval == strlen (result));
1149 { /* Positive infinity. */
1152 my_snprintf (result, sizeof (result), "%Lf %d", Infinityl (), 33, 44, 55);
1153 ASSERT (strcmp (result, "inf 33") == 0
1154 || strcmp (result, "infinity 33") == 0);
1155 ASSERT (retval == strlen (result));
1158 { /* Negative infinity. */
1161 my_snprintf (result, sizeof (result), "%Lf %d", - Infinityl (), 33, 44, 55);
1162 ASSERT (strcmp (result, "-inf 33") == 0
1163 || strcmp (result, "-infinity 33") == 0);
1164 ASSERT (retval == strlen (result));
1170 my_snprintf (result, sizeof (result), "%Lf %d", NaNl (), 33, 44, 55);
1171 ASSERT (strlen (result) >= 3 + 3
1172 && strisnan (result, 0, strlen (result) - 3, 0)
1173 && strcmp (result + strlen (result) - 3, " 33") == 0);
1174 ASSERT (retval == strlen (result));
1176 #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_))
1178 static union { unsigned int word[4]; long double value; } x =
1179 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
1182 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1183 ASSERT (strlen (result) >= 3 + 3
1184 && strisnan (result, 0, strlen (result) - 3, 0)
1185 && strcmp (result + strlen (result) - 3, " 33") == 0);
1186 ASSERT (retval == strlen (result));
1189 /* Signalling NaN. */
1190 static union { unsigned int word[4]; long double value; } x =
1191 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
1194 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1195 ASSERT (strlen (result) >= 3 + 3
1196 && strisnan (result, 0, strlen (result) - 3, 0)
1197 && strcmp (result + strlen (result) - 3, " 33") == 0);
1198 ASSERT (retval == strlen (result));
1200 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
1201 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
1202 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
1203 Application Architecture.
1204 Table 5-2 "Floating-Point Register Encodings"
1205 Figure 5-6 "Memory to Floating-Point Register Data Translation"
1208 static union { unsigned int word[4]; long double value; } x =
1209 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
1212 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1213 ASSERT (strlen (result) >= 3 + 3
1214 && strisnan (result, 0, strlen (result) - 3, 0)
1215 && strcmp (result + strlen (result) - 3, " 33") == 0);
1216 ASSERT (retval == strlen (result));
1218 { /* Pseudo-Infinity. */
1219 static union { unsigned int word[4]; long double value; } x =
1220 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
1223 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1224 ASSERT (strlen (result) >= 3 + 3
1225 && strisnan (result, 0, strlen (result) - 3, 0)
1226 && strcmp (result + strlen (result) - 3, " 33") == 0);
1227 ASSERT (retval == strlen (result));
1229 { /* Pseudo-Zero. */
1230 static union { unsigned int word[4]; long double value; } x =
1231 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
1234 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1235 ASSERT (strlen (result) >= 3 + 3
1236 && strisnan (result, 0, strlen (result) - 3, 0)
1237 && strcmp (result + strlen (result) - 3, " 33") == 0);
1238 ASSERT (retval == strlen (result));
1240 { /* Unnormalized number. */
1241 static union { unsigned int word[4]; long double value; } x =
1242 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
1245 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1246 ASSERT (strlen (result) >= 3 + 3
1247 && strisnan (result, 0, strlen (result) - 3, 0)
1248 && strcmp (result + strlen (result) - 3, " 33") == 0);
1249 ASSERT (retval == strlen (result));
1251 { /* Pseudo-Denormal. */
1252 static union { unsigned int word[4]; long double value; } x =
1253 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
1256 my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
1257 ASSERT (strlen (result) >= 3 + 3
1258 && strisnan (result, 0, strlen (result) - 3, 0)
1259 && strcmp (result + strlen (result) - 3, " 33") == 0);
1260 ASSERT (retval == strlen (result));
1267 my_snprintf (result, sizeof (result), "%10Lf %d", 1.75L, 33, 44, 55);
1268 ASSERT (strcmp (result, " 1.750000 33") == 0);
1269 ASSERT (retval == strlen (result));
1275 my_snprintf (result, sizeof (result), "%-10Lf %d", 1.75L, 33, 44, 55);
1276 ASSERT (strcmp (result, "1.750000 33") == 0);
1277 ASSERT (retval == strlen (result));
1280 { /* FLAG_SHOWSIGN. */
1283 my_snprintf (result, sizeof (result), "%+Lf %d", 1.75L, 33, 44, 55);
1284 ASSERT (strcmp (result, "+1.750000 33") == 0);
1285 ASSERT (retval == strlen (result));
1291 my_snprintf (result, sizeof (result), "% Lf %d", 1.75L, 33, 44, 55);
1292 ASSERT (strcmp (result, " 1.750000 33") == 0);
1293 ASSERT (retval == strlen (result));
1299 my_snprintf (result, sizeof (result), "%#Lf %d", 1.75L, 33, 44, 55);
1300 ASSERT (strcmp (result, "1.750000 33") == 0);
1301 ASSERT (retval == strlen (result));
1307 my_snprintf (result, sizeof (result), "%#.Lf %d", 1.75L, 33, 44, 55);
1308 ASSERT (strcmp (result, "2. 33") == 0);
1309 ASSERT (retval == strlen (result));
1312 { /* FLAG_ZERO with finite number. */
1315 my_snprintf (result, sizeof (result), "%015Lf %d", 1234.0L, 33, 44, 55);
1316 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1317 ASSERT (retval == strlen (result));
1320 { /* FLAG_ZERO with infinite number. */
1323 my_snprintf (result, sizeof (result), "%015Lf %d", - Infinityl (), 33, 44, 55);
1324 ASSERT (strcmp (result, " -inf 33") == 0
1325 || strcmp (result, " -infinity 33") == 0);
1326 ASSERT (retval == strlen (result));
1329 { /* FLAG_ZERO with NaN. */
1332 my_snprintf (result, sizeof (result), "%050Lf %d", NaNl (), 33, 44, 55);
1333 ASSERT (strlen (result) == 50 + 3
1334 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1335 && strcmp (result + strlen (result) - 3, " 33") == 0);
1336 ASSERT (retval == strlen (result));
1342 my_snprintf (result, sizeof (result), "%.Lf %d", 1234.0L, 33, 44, 55);
1343 ASSERT (strcmp (result, "1234 33") == 0);
1344 ASSERT (retval == strlen (result));
1347 { /* Precision with no rounding. */
1350 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.951L, 33, 44, 55);
1351 ASSERT (strcmp (result, "999.95 33") == 0);
1352 ASSERT (retval == strlen (result));
1355 { /* Precision with rounding. */
1358 my_snprintf (result, sizeof (result), "%.2Lf %d", 999.996L, 33, 44, 55);
1359 ASSERT (strcmp (result, "1000.00 33") == 0);
1360 ASSERT (retval == strlen (result));
1363 /* Test the support of the %F format directive. */
1365 { /* A positive number. */
1368 my_snprintf (result, sizeof (result), "%F %d", 12.75, 33, 44, 55);
1369 ASSERT (strcmp (result, "12.750000 33") == 0);
1370 ASSERT (retval == strlen (result));
1373 { /* A larger positive number. */
1376 my_snprintf (result, sizeof (result), "%F %d", 1234567.0, 33, 44, 55);
1377 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1378 ASSERT (retval == strlen (result));
1381 { /* A negative number. */
1384 my_snprintf (result, sizeof (result), "%F %d", -0.03125, 33, 44, 55);
1385 ASSERT (strcmp (result, "-0.031250 33") == 0);
1386 ASSERT (retval == strlen (result));
1389 { /* Positive zero. */
1392 my_snprintf (result, sizeof (result), "%F %d", 0.0, 33, 44, 55);
1393 ASSERT (strcmp (result, "0.000000 33") == 0);
1394 ASSERT (retval == strlen (result));
1397 { /* Negative zero. */
1400 my_snprintf (result, sizeof (result), "%F %d", minus_zerod, 33, 44, 55);
1401 if (have_minus_zero ())
1402 ASSERT (strcmp (result, "-0.000000 33") == 0);
1403 ASSERT (retval == strlen (result));
1406 { /* Positive infinity. */
1409 my_snprintf (result, sizeof (result), "%F %d", Infinityd (), 33, 44, 55);
1410 ASSERT (strcmp (result, "INF 33") == 0
1411 || strcmp (result, "INFINITY 33") == 0);
1412 ASSERT (retval == strlen (result));
1415 { /* Negative infinity. */
1418 my_snprintf (result, sizeof (result), "%F %d", - Infinityd (), 33, 44, 55);
1419 ASSERT (strcmp (result, "-INF 33") == 0
1420 || strcmp (result, "-INFINITY 33") == 0);
1421 ASSERT (retval == strlen (result));
1427 my_snprintf (result, sizeof (result), "%F %d", NaNd (), 33, 44, 55);
1428 ASSERT (strlen (result) >= 3 + 3
1429 && strisnan (result, 0, strlen (result) - 3, 1)
1430 && strcmp (result + strlen (result) - 3, " 33") == 0);
1431 ASSERT (retval == strlen (result));
1437 my_snprintf (result, sizeof (result), "%015F %d", 1234.0, 33, 44, 55);
1438 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1439 ASSERT (retval == strlen (result));
1442 { /* FLAG_ZERO with infinite number. */
1445 my_snprintf (result, sizeof (result), "%015F %d", - Infinityd (), 33, 44, 55);
1446 ASSERT (strcmp (result, " -INF 33") == 0
1447 || strcmp (result, " -INFINITY 33") == 0);
1448 ASSERT (retval == strlen (result));
1454 my_snprintf (result, sizeof (result), "%.F %d", 1234.0, 33, 44, 55);
1455 ASSERT (strcmp (result, "1234 33") == 0);
1456 ASSERT (retval == strlen (result));
1459 { /* Precision with no rounding. */
1462 my_snprintf (result, sizeof (result), "%.2F %d", 999.951, 33, 44, 55);
1463 ASSERT (strcmp (result, "999.95 33") == 0);
1464 ASSERT (retval == strlen (result));
1467 { /* Precision with rounding. */
1470 my_snprintf (result, sizeof (result), "%.2F %d", 999.996, 33, 44, 55);
1471 ASSERT (strcmp (result, "1000.00 33") == 0);
1472 ASSERT (retval == strlen (result));
1475 { /* A positive number. */
1478 my_snprintf (result, sizeof (result), "%LF %d", 12.75L, 33, 44, 55);
1479 ASSERT (strcmp (result, "12.750000 33") == 0);
1480 ASSERT (retval == strlen (result));
1483 { /* A larger positive number. */
1486 my_snprintf (result, sizeof (result), "%LF %d", 1234567.0L, 33, 44, 55);
1487 ASSERT (strcmp (result, "1234567.000000 33") == 0);
1488 ASSERT (retval == strlen (result));
1491 { /* A negative number. */
1494 my_snprintf (result, sizeof (result), "%LF %d", -0.03125L, 33, 44, 55);
1495 ASSERT (strcmp (result, "-0.031250 33") == 0);
1496 ASSERT (retval == strlen (result));
1499 { /* Positive zero. */
1502 my_snprintf (result, sizeof (result), "%LF %d", 0.0L, 33, 44, 55);
1503 ASSERT (strcmp (result, "0.000000 33") == 0);
1504 ASSERT (retval == strlen (result));
1507 { /* Negative zero. */
1510 my_snprintf (result, sizeof (result), "%LF %d", minus_zerol, 33, 44, 55);
1511 if (have_minus_zero ())
1512 ASSERT (strcmp (result, "-0.000000 33") == 0);
1513 ASSERT (retval == strlen (result));
1516 { /* Positive infinity. */
1519 my_snprintf (result, sizeof (result), "%LF %d", Infinityl (), 33, 44, 55);
1520 ASSERT (strcmp (result, "INF 33") == 0
1521 || strcmp (result, "INFINITY 33") == 0);
1522 ASSERT (retval == strlen (result));
1525 { /* Negative infinity. */
1528 my_snprintf (result, sizeof (result), "%LF %d", - Infinityl (), 33, 44, 55);
1529 ASSERT (strcmp (result, "-INF 33") == 0
1530 || strcmp (result, "-INFINITY 33") == 0);
1531 ASSERT (retval == strlen (result));
1537 my_snprintf (result, sizeof (result), "%LF %d", NaNl (), 33, 44, 55);
1538 ASSERT (strlen (result) >= 3 + 3
1539 && strisnan (result, 0, strlen (result) - 3, 1)
1540 && strcmp (result + strlen (result) - 3, " 33") == 0);
1541 ASSERT (retval == strlen (result));
1547 my_snprintf (result, sizeof (result), "%015LF %d", 1234.0L, 33, 44, 55);
1548 ASSERT (strcmp (result, "00001234.000000 33") == 0);
1549 ASSERT (retval == strlen (result));
1552 { /* FLAG_ZERO with infinite number. */
1555 my_snprintf (result, sizeof (result), "%015LF %d", - Infinityl (), 33, 44, 55);
1556 ASSERT (strcmp (result, " -INF 33") == 0
1557 || strcmp (result, " -INFINITY 33") == 0);
1558 ASSERT (retval == strlen (result));
1564 my_snprintf (result, sizeof (result), "%.LF %d", 1234.0L, 33, 44, 55);
1565 ASSERT (strcmp (result, "1234 33") == 0);
1566 ASSERT (retval == strlen (result));
1569 { /* Precision with no rounding. */
1572 my_snprintf (result, sizeof (result), "%.2LF %d", 999.951L, 33, 44, 55);
1573 ASSERT (strcmp (result, "999.95 33") == 0);
1574 ASSERT (retval == strlen (result));
1577 { /* Precision with rounding. */
1580 my_snprintf (result, sizeof (result), "%.2LF %d", 999.996L, 33, 44, 55);
1581 ASSERT (strcmp (result, "1000.00 33") == 0);
1582 ASSERT (retval == strlen (result));
1585 /* Test the support of the %e format directive. */
1587 { /* A positive number. */
1590 my_snprintf (result, sizeof (result), "%e %d", 12.75, 33, 44, 55);
1591 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1592 || strcmp (result, "1.275000e+001 33") == 0);
1593 ASSERT (retval == strlen (result));
1596 { /* A larger positive number. */
1599 my_snprintf (result, sizeof (result), "%e %d", 1234567.0, 33, 44, 55);
1600 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1601 || strcmp (result, "1.234567e+006 33") == 0);
1602 ASSERT (retval == strlen (result));
1605 { /* Small and large positive numbers. */
1606 static struct { double value; const char *string; } data[] =
1608 { 1.234321234321234e-37, "1.234321e-37" },
1609 { 1.234321234321234e-36, "1.234321e-36" },
1610 { 1.234321234321234e-35, "1.234321e-35" },
1611 { 1.234321234321234e-34, "1.234321e-34" },
1612 { 1.234321234321234e-33, "1.234321e-33" },
1613 { 1.234321234321234e-32, "1.234321e-32" },
1614 { 1.234321234321234e-31, "1.234321e-31" },
1615 { 1.234321234321234e-30, "1.234321e-30" },
1616 { 1.234321234321234e-29, "1.234321e-29" },
1617 { 1.234321234321234e-28, "1.234321e-28" },
1618 { 1.234321234321234e-27, "1.234321e-27" },
1619 { 1.234321234321234e-26, "1.234321e-26" },
1620 { 1.234321234321234e-25, "1.234321e-25" },
1621 { 1.234321234321234e-24, "1.234321e-24" },
1622 { 1.234321234321234e-23, "1.234321e-23" },
1623 { 1.234321234321234e-22, "1.234321e-22" },
1624 { 1.234321234321234e-21, "1.234321e-21" },
1625 { 1.234321234321234e-20, "1.234321e-20" },
1626 { 1.234321234321234e-19, "1.234321e-19" },
1627 { 1.234321234321234e-18, "1.234321e-18" },
1628 { 1.234321234321234e-17, "1.234321e-17" },
1629 { 1.234321234321234e-16, "1.234321e-16" },
1630 { 1.234321234321234e-15, "1.234321e-15" },
1631 { 1.234321234321234e-14, "1.234321e-14" },
1632 { 1.234321234321234e-13, "1.234321e-13" },
1633 { 1.234321234321234e-12, "1.234321e-12" },
1634 { 1.234321234321234e-11, "1.234321e-11" },
1635 { 1.234321234321234e-10, "1.234321e-10" },
1636 { 1.234321234321234e-9, "1.234321e-09" },
1637 { 1.234321234321234e-8, "1.234321e-08" },
1638 { 1.234321234321234e-7, "1.234321e-07" },
1639 { 1.234321234321234e-6, "1.234321e-06" },
1640 { 1.234321234321234e-5, "1.234321e-05" },
1641 { 1.234321234321234e-4, "1.234321e-04" },
1642 { 1.234321234321234e-3, "1.234321e-03" },
1643 { 1.234321234321234e-2, "1.234321e-02" },
1644 { 1.234321234321234e-1, "1.234321e-01" },
1645 { 1.234321234321234, "1.234321e+00" },
1646 { 1.234321234321234e1, "1.234321e+01" },
1647 { 1.234321234321234e2, "1.234321e+02" },
1648 { 1.234321234321234e3, "1.234321e+03" },
1649 { 1.234321234321234e4, "1.234321e+04" },
1650 { 1.234321234321234e5, "1.234321e+05" },
1651 { 1.234321234321234e6, "1.234321e+06" },
1652 { 1.234321234321234e7, "1.234321e+07" },
1653 { 1.234321234321234e8, "1.234321e+08" },
1654 { 1.234321234321234e9, "1.234321e+09" },
1655 { 1.234321234321234e10, "1.234321e+10" },
1656 { 1.234321234321234e11, "1.234321e+11" },
1657 { 1.234321234321234e12, "1.234321e+12" },
1658 { 1.234321234321234e13, "1.234321e+13" },
1659 { 1.234321234321234e14, "1.234321e+14" },
1660 { 1.234321234321234e15, "1.234321e+15" },
1661 { 1.234321234321234e16, "1.234321e+16" },
1662 { 1.234321234321234e17, "1.234321e+17" },
1663 { 1.234321234321234e18, "1.234321e+18" },
1664 { 1.234321234321234e19, "1.234321e+19" },
1665 { 1.234321234321234e20, "1.234321e+20" },
1666 { 1.234321234321234e21, "1.234321e+21" },
1667 { 1.234321234321234e22, "1.234321e+22" },
1668 { 1.234321234321234e23, "1.234321e+23" },
1669 { 1.234321234321234e24, "1.234321e+24" },
1670 { 1.234321234321234e25, "1.234321e+25" },
1671 { 1.234321234321234e26, "1.234321e+26" },
1672 { 1.234321234321234e27, "1.234321e+27" },
1673 { 1.234321234321234e28, "1.234321e+28" },
1674 { 1.234321234321234e29, "1.234321e+29" },
1675 { 1.234321234321234e30, "1.234321e+30" },
1676 { 1.234321234321234e31, "1.234321e+31" },
1677 { 1.234321234321234e32, "1.234321e+32" },
1678 { 1.234321234321234e33, "1.234321e+33" },
1679 { 1.234321234321234e34, "1.234321e+34" },
1680 { 1.234321234321234e35, "1.234321e+35" },
1681 { 1.234321234321234e36, "1.234321e+36" }
1684 for (k = 0; k < SIZEOF (data); k++)
1688 my_snprintf (result, sizeof (result), "%e", data[k].value);
1689 const char *expected = data[k].string;
1690 ASSERT (strcmp (result, expected) == 0
1691 /* Some implementations produce exponents with 3 digits. */
1692 || (strlen (result) == strlen (expected) + 1
1693 && memcmp (result, expected, strlen (expected) - 2) == 0
1694 && result[strlen (expected) - 2] == '0'
1695 && strcmp (result + strlen (expected) - 1,
1696 expected + strlen (expected) - 2)
1698 ASSERT (retval == strlen (result));
1702 { /* A negative number. */
1705 my_snprintf (result, sizeof (result), "%e %d", -0.03125, 33, 44, 55);
1706 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
1707 || strcmp (result, "-3.125000e-002 33") == 0);
1708 ASSERT (retval == strlen (result));
1711 { /* Positive zero. */
1714 my_snprintf (result, sizeof (result), "%e %d", 0.0, 33, 44, 55);
1715 ASSERT (strcmp (result, "0.000000e+00 33") == 0
1716 || strcmp (result, "0.000000e+000 33") == 0);
1717 ASSERT (retval == strlen (result));
1720 { /* Negative zero. */
1723 my_snprintf (result, sizeof (result), "%e %d", minus_zerod, 33, 44, 55);
1724 if (have_minus_zero ())
1725 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
1726 || strcmp (result, "-0.000000e+000 33") == 0);
1727 ASSERT (retval == strlen (result));
1730 { /* Positive infinity. */
1733 my_snprintf (result, sizeof (result), "%e %d", Infinityd (), 33, 44, 55);
1734 ASSERT (strcmp (result, "inf 33") == 0
1735 || strcmp (result, "infinity 33") == 0);
1736 ASSERT (retval == strlen (result));
1739 { /* Negative infinity. */
1742 my_snprintf (result, sizeof (result), "%e %d", - Infinityd (), 33, 44, 55);
1743 ASSERT (strcmp (result, "-inf 33") == 0
1744 || strcmp (result, "-infinity 33") == 0);
1745 ASSERT (retval == strlen (result));
1751 my_snprintf (result, sizeof (result), "%e %d", NaNd (), 33, 44, 55);
1752 ASSERT (strlen (result) >= 3 + 3
1753 && strisnan (result, 0, strlen (result) - 3, 0)
1754 && strcmp (result + strlen (result) - 3, " 33") == 0);
1755 ASSERT (retval == strlen (result));
1761 my_snprintf (result, sizeof (result), "%15e %d", 1.75, 33, 44, 55);
1762 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1763 || strcmp (result, " 1.750000e+000 33") == 0);
1764 ASSERT (retval == strlen (result));
1770 my_snprintf (result, sizeof (result), "%-15e %d", 1.75, 33, 44, 55);
1771 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1772 || strcmp (result, "1.750000e+000 33") == 0);
1773 ASSERT (retval == strlen (result));
1776 { /* FLAG_SHOWSIGN. */
1779 my_snprintf (result, sizeof (result), "%+e %d", 1.75, 33, 44, 55);
1780 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
1781 || strcmp (result, "+1.750000e+000 33") == 0);
1782 ASSERT (retval == strlen (result));
1788 my_snprintf (result, sizeof (result), "% e %d", 1.75, 33, 44, 55);
1789 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
1790 || strcmp (result, " 1.750000e+000 33") == 0);
1791 ASSERT (retval == strlen (result));
1797 my_snprintf (result, sizeof (result), "%#e %d", 1.75, 33, 44, 55);
1798 ASSERT (strcmp (result, "1.750000e+00 33") == 0
1799 || strcmp (result, "1.750000e+000 33") == 0);
1800 ASSERT (retval == strlen (result));
1806 my_snprintf (result, sizeof (result), "%#.e %d", 1.75, 33, 44, 55);
1807 ASSERT (strcmp (result, "2.e+00 33") == 0
1808 || strcmp (result, "2.e+000 33") == 0);
1809 ASSERT (retval == strlen (result));
1815 my_snprintf (result, sizeof (result), "%#.e %d", 9.75, 33, 44, 55);
1816 ASSERT (strcmp (result, "1.e+01 33") == 0
1817 || strcmp (result, "1.e+001 33") == 0);
1818 ASSERT (retval == strlen (result));
1821 { /* FLAG_ZERO with finite number. */
1824 my_snprintf (result, sizeof (result), "%015e %d", 1234.0, 33, 44, 55);
1825 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
1826 || strcmp (result, "001.234000e+003 33") == 0);
1827 ASSERT (retval == strlen (result));
1830 { /* FLAG_ZERO with infinite number. */
1833 my_snprintf (result, sizeof (result), "%015e %d", - Infinityd (), 33, 44, 55);
1834 ASSERT (strcmp (result, " -inf 33") == 0
1835 || strcmp (result, " -infinity 33") == 0);
1836 ASSERT (retval == strlen (result));
1839 { /* FLAG_ZERO with NaN. */
1842 my_snprintf (result, sizeof (result), "%050e %d", NaNd (), 33, 44, 55);
1843 ASSERT (strlen (result) == 50 + 3
1844 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
1845 && strcmp (result + strlen (result) - 3, " 33") == 0);
1846 ASSERT (retval == strlen (result));
1852 my_snprintf (result, sizeof (result), "%.e %d", 1234.0, 33, 44, 55);
1853 ASSERT (strcmp (result, "1e+03 33") == 0
1854 || strcmp (result, "1e+003 33") == 0);
1855 ASSERT (retval == strlen (result));
1858 { /* Precision with no rounding. */
1861 my_snprintf (result, sizeof (result), "%.4e %d", 999.951, 33, 44, 55);
1862 ASSERT (strcmp (result, "9.9995e+02 33") == 0
1863 || strcmp (result, "9.9995e+002 33") == 0);
1864 ASSERT (retval == strlen (result));
1867 { /* Precision with rounding. */
1870 my_snprintf (result, sizeof (result), "%.4e %d", 999.996, 33, 44, 55);
1871 ASSERT (strcmp (result, "1.0000e+03 33") == 0
1872 || strcmp (result, "1.0000e+003 33") == 0);
1873 ASSERT (retval == strlen (result));
1876 { /* A positive number. */
1879 my_snprintf (result, sizeof (result), "%Le %d", 12.75L, 33, 44, 55);
1880 ASSERT (strcmp (result, "1.275000e+01 33") == 0
1881 || strcmp (result, "1.275000e+001 33") == 0);
1882 ASSERT (retval == strlen (result));
1885 { /* A larger positive number. */
1888 my_snprintf (result, sizeof (result), "%Le %d", 1234567.0L, 33, 44, 55);
1889 ASSERT (strcmp (result, "1.234567e+06 33") == 0
1890 || strcmp (result, "1.234567e+006 33") == 0);
1891 ASSERT (retval == strlen (result));
1894 { /* Small and large positive numbers. */
1895 static struct { long double value; const char *string; } data[] =
1897 { 1.234321234321234e-37L, "1.234321e-37" },
1898 { 1.234321234321234e-36L, "1.234321e-36" },
1899 { 1.234321234321234e-35L, "1.234321e-35" },
1900 { 1.234321234321234e-34L, "1.234321e-34" },
1901 { 1.234321234321234e-33L, "1.234321e-33" },
1902 { 1.234321234321234e-32L, "1.234321e-32" },
1903 { 1.234321234321234e-31L, "1.234321e-31" },
1904 { 1.234321234321234e-30L, "1.234321e-30" },
1905 { 1.234321234321234e-29L, "1.234321e-29" },
1906 { 1.234321234321234e-28L, "1.234321e-28" },
1907 { 1.234321234321234e-27L, "1.234321e-27" },
1908 { 1.234321234321234e-26L, "1.234321e-26" },
1909 { 1.234321234321234e-25L, "1.234321e-25" },
1910 { 1.234321234321234e-24L, "1.234321e-24" },
1911 { 1.234321234321234e-23L, "1.234321e-23" },
1912 { 1.234321234321234e-22L, "1.234321e-22" },
1913 { 1.234321234321234e-21L, "1.234321e-21" },
1914 { 1.234321234321234e-20L, "1.234321e-20" },
1915 { 1.234321234321234e-19L, "1.234321e-19" },
1916 { 1.234321234321234e-18L, "1.234321e-18" },
1917 { 1.234321234321234e-17L, "1.234321e-17" },
1918 { 1.234321234321234e-16L, "1.234321e-16" },
1919 { 1.234321234321234e-15L, "1.234321e-15" },
1920 { 1.234321234321234e-14L, "1.234321e-14" },
1921 { 1.234321234321234e-13L, "1.234321e-13" },
1922 { 1.234321234321234e-12L, "1.234321e-12" },
1923 { 1.234321234321234e-11L, "1.234321e-11" },
1924 { 1.234321234321234e-10L, "1.234321e-10" },
1925 { 1.234321234321234e-9L, "1.234321e-09" },
1926 { 1.234321234321234e-8L, "1.234321e-08" },
1927 { 1.234321234321234e-7L, "1.234321e-07" },
1928 { 1.234321234321234e-6L, "1.234321e-06" },
1929 { 1.234321234321234e-5L, "1.234321e-05" },
1930 { 1.234321234321234e-4L, "1.234321e-04" },
1931 { 1.234321234321234e-3L, "1.234321e-03" },
1932 { 1.234321234321234e-2L, "1.234321e-02" },
1933 { 1.234321234321234e-1L, "1.234321e-01" },
1934 { 1.234321234321234L, "1.234321e+00" },
1935 { 1.234321234321234e1L, "1.234321e+01" },
1936 { 1.234321234321234e2L, "1.234321e+02" },
1937 { 1.234321234321234e3L, "1.234321e+03" },
1938 { 1.234321234321234e4L, "1.234321e+04" },
1939 { 1.234321234321234e5L, "1.234321e+05" },
1940 { 1.234321234321234e6L, "1.234321e+06" },
1941 { 1.234321234321234e7L, "1.234321e+07" },
1942 { 1.234321234321234e8L, "1.234321e+08" },
1943 { 1.234321234321234e9L, "1.234321e+09" },
1944 { 1.234321234321234e10L, "1.234321e+10" },
1945 { 1.234321234321234e11L, "1.234321e+11" },
1946 { 1.234321234321234e12L, "1.234321e+12" },
1947 { 1.234321234321234e13L, "1.234321e+13" },
1948 { 1.234321234321234e14L, "1.234321e+14" },
1949 { 1.234321234321234e15L, "1.234321e+15" },
1950 { 1.234321234321234e16L, "1.234321e+16" },
1951 { 1.234321234321234e17L, "1.234321e+17" },
1952 { 1.234321234321234e18L, "1.234321e+18" },
1953 { 1.234321234321234e19L, "1.234321e+19" },
1954 { 1.234321234321234e20L, "1.234321e+20" },
1955 { 1.234321234321234e21L, "1.234321e+21" },
1956 { 1.234321234321234e22L, "1.234321e+22" },
1957 { 1.234321234321234e23L, "1.234321e+23" },
1958 { 1.234321234321234e24L, "1.234321e+24" },
1959 { 1.234321234321234e25L, "1.234321e+25" },
1960 { 1.234321234321234e26L, "1.234321e+26" },
1961 { 1.234321234321234e27L, "1.234321e+27" },
1962 { 1.234321234321234e28L, "1.234321e+28" },
1963 { 1.234321234321234e29L, "1.234321e+29" },
1964 { 1.234321234321234e30L, "1.234321e+30" },
1965 { 1.234321234321234e31L, "1.234321e+31" },
1966 { 1.234321234321234e32L, "1.234321e+32" },
1967 { 1.234321234321234e33L, "1.234321e+33" },
1968 { 1.234321234321234e34L, "1.234321e+34" },
1969 { 1.234321234321234e35L, "1.234321e+35" },
1970 { 1.234321234321234e36L, "1.234321e+36" }
1973 for (k = 0; k < SIZEOF (data); k++)
1977 my_snprintf (result, sizeof (result), "%Le", data[k].value);
1978 const char *expected = data[k].string;
1979 ASSERT (strcmp (result, expected) == 0
1980 /* Some implementations produce exponents with 3 digits. */
1981 || (strlen (result) == strlen (expected) + 1
1982 && memcmp (result, expected, strlen (expected) - 2) == 0
1983 && result[strlen (expected) - 2] == '0'
1984 && strcmp (result + strlen (expected) - 1,
1985 expected + strlen (expected) - 2)
1987 ASSERT (retval == strlen (result));
1991 { /* A negative number. */
1994 my_snprintf (result, sizeof (result), "%Le %d", -0.03125L, 33, 44, 55);
1995 ASSERT (strcmp (result, "-3.125000e-02 33") == 0
1996 || strcmp (result, "-3.125000e-002 33") == 0);
1997 ASSERT (retval == strlen (result));
2000 { /* Positive zero. */
2003 my_snprintf (result, sizeof (result), "%Le %d", 0.0L, 33, 44, 55);
2004 ASSERT (strcmp (result, "0.000000e+00 33") == 0
2005 || strcmp (result, "0.000000e+000 33") == 0);
2006 ASSERT (retval == strlen (result));
2009 { /* Negative zero. */
2012 my_snprintf (result, sizeof (result), "%Le %d", minus_zerol, 33, 44, 55);
2013 if (have_minus_zero ())
2014 ASSERT (strcmp (result, "-0.000000e+00 33") == 0
2015 || strcmp (result, "-0.000000e+000 33") == 0);
2016 ASSERT (retval == strlen (result));
2019 { /* Positive infinity. */
2022 my_snprintf (result, sizeof (result), "%Le %d", Infinityl (), 33, 44, 55);
2023 ASSERT (strcmp (result, "inf 33") == 0
2024 || strcmp (result, "infinity 33") == 0);
2025 ASSERT (retval == strlen (result));
2028 { /* Negative infinity. */
2031 my_snprintf (result, sizeof (result), "%Le %d", - Infinityl (), 33, 44, 55);
2032 ASSERT (strcmp (result, "-inf 33") == 0
2033 || strcmp (result, "-infinity 33") == 0);
2034 ASSERT (retval == strlen (result));
2040 my_snprintf (result, sizeof (result), "%Le %d", NaNl (), 33, 44, 55);
2041 ASSERT (strlen (result) >= 3 + 3
2042 && strisnan (result, 0, strlen (result) - 3, 0)
2043 && strcmp (result + strlen (result) - 3, " 33") == 0);
2044 ASSERT (retval == strlen (result));
2046 #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_))
2048 static union { unsigned int word[4]; long double value; } x =
2049 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2052 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2053 ASSERT (strlen (result) >= 3 + 3
2054 && strisnan (result, 0, strlen (result) - 3, 0)
2055 && strcmp (result + strlen (result) - 3, " 33") == 0);
2056 ASSERT (retval == strlen (result));
2059 /* Signalling NaN. */
2060 static union { unsigned int word[4]; long double value; } x =
2061 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2064 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2065 ASSERT (strlen (result) >= 3 + 3
2066 && strisnan (result, 0, strlen (result) - 3, 0)
2067 && strcmp (result + strlen (result) - 3, " 33") == 0);
2068 ASSERT (retval == strlen (result));
2070 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2071 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2072 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2073 Application Architecture.
2074 Table 5-2 "Floating-Point Register Encodings"
2075 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2078 static union { unsigned int word[4]; long double value; } x =
2079 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2082 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2083 ASSERT (strlen (result) >= 3 + 3
2084 && strisnan (result, 0, strlen (result) - 3, 0)
2085 && strcmp (result + strlen (result) - 3, " 33") == 0);
2086 ASSERT (retval == strlen (result));
2088 { /* Pseudo-Infinity. */
2089 static union { unsigned int word[4]; long double value; } x =
2090 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2093 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2094 ASSERT (strlen (result) >= 3 + 3
2095 && strisnan (result, 0, strlen (result) - 3, 0)
2096 && strcmp (result + strlen (result) - 3, " 33") == 0);
2097 ASSERT (retval == strlen (result));
2099 { /* Pseudo-Zero. */
2100 static union { unsigned int word[4]; long double value; } x =
2101 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2104 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2105 ASSERT (strlen (result) >= 3 + 3
2106 && strisnan (result, 0, strlen (result) - 3, 0)
2107 && strcmp (result + strlen (result) - 3, " 33") == 0);
2108 ASSERT (retval == strlen (result));
2110 { /* Unnormalized number. */
2111 static union { unsigned int word[4]; long double value; } x =
2112 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2115 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2116 ASSERT (strlen (result) >= 3 + 3
2117 && strisnan (result, 0, strlen (result) - 3, 0)
2118 && strcmp (result + strlen (result) - 3, " 33") == 0);
2119 ASSERT (retval == strlen (result));
2121 { /* Pseudo-Denormal. */
2122 static union { unsigned int word[4]; long double value; } x =
2123 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2126 my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
2127 ASSERT (strlen (result) >= 3 + 3
2128 && strisnan (result, 0, strlen (result) - 3, 0)
2129 && strcmp (result + strlen (result) - 3, " 33") == 0);
2130 ASSERT (retval == strlen (result));
2137 my_snprintf (result, sizeof (result), "%15Le %d", 1.75L, 33, 44, 55);
2138 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2139 || strcmp (result, " 1.750000e+000 33") == 0);
2140 ASSERT (retval == strlen (result));
2146 my_snprintf (result, sizeof (result), "%-15Le %d", 1.75L, 33, 44, 55);
2147 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2148 || strcmp (result, "1.750000e+000 33") == 0);
2149 ASSERT (retval == strlen (result));
2152 { /* FLAG_SHOWSIGN. */
2155 my_snprintf (result, sizeof (result), "%+Le %d", 1.75L, 33, 44, 55);
2156 ASSERT (strcmp (result, "+1.750000e+00 33") == 0
2157 || strcmp (result, "+1.750000e+000 33") == 0);
2158 ASSERT (retval == strlen (result));
2164 my_snprintf (result, sizeof (result), "% Le %d", 1.75L, 33, 44, 55);
2165 ASSERT (strcmp (result, " 1.750000e+00 33") == 0
2166 || strcmp (result, " 1.750000e+000 33") == 0);
2167 ASSERT (retval == strlen (result));
2173 my_snprintf (result, sizeof (result), "%#Le %d", 1.75L, 33, 44, 55);
2174 ASSERT (strcmp (result, "1.750000e+00 33") == 0
2175 || strcmp (result, "1.750000e+000 33") == 0);
2176 ASSERT (retval == strlen (result));
2182 my_snprintf (result, sizeof (result), "%#.Le %d", 1.75L, 33, 44, 55);
2183 ASSERT (strcmp (result, "2.e+00 33") == 0
2184 || strcmp (result, "2.e+000 33") == 0);
2185 ASSERT (retval == strlen (result));
2191 my_snprintf (result, sizeof (result), "%#.Le %d", 9.75L, 33, 44, 55);
2192 ASSERT (strcmp (result, "1.e+01 33") == 0
2193 || strcmp (result, "1.e+001 33") == 0);
2194 ASSERT (retval == strlen (result));
2197 { /* FLAG_ZERO with finite number. */
2200 my_snprintf (result, sizeof (result), "%015Le %d", 1234.0L, 33, 44, 55);
2201 ASSERT (strcmp (result, "0001.234000e+03 33") == 0
2202 || strcmp (result, "001.234000e+003 33") == 0);
2203 ASSERT (retval == strlen (result));
2206 { /* FLAG_ZERO with infinite number. */
2209 my_snprintf (result, sizeof (result), "%015Le %d", - Infinityl (), 33, 44, 55);
2210 ASSERT (strcmp (result, " -inf 33") == 0
2211 || strcmp (result, " -infinity 33") == 0);
2212 ASSERT (retval == strlen (result));
2215 { /* FLAG_ZERO with NaN. */
2218 my_snprintf (result, sizeof (result), "%050Le %d", NaNl (), 33, 44, 55);
2219 ASSERT (strlen (result) == 50 + 3
2220 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2221 && strcmp (result + strlen (result) - 3, " 33") == 0);
2222 ASSERT (retval == strlen (result));
2228 my_snprintf (result, sizeof (result), "%.Le %d", 1234.0L, 33, 44, 55);
2229 ASSERT (strcmp (result, "1e+03 33") == 0
2230 || strcmp (result, "1e+003 33") == 0);
2231 ASSERT (retval == strlen (result));
2234 { /* Precision with no rounding. */
2237 my_snprintf (result, sizeof (result), "%.4Le %d", 999.951L, 33, 44, 55);
2238 ASSERT (strcmp (result, "9.9995e+02 33") == 0
2239 || strcmp (result, "9.9995e+002 33") == 0);
2240 ASSERT (retval == strlen (result));
2243 { /* Precision with rounding. */
2246 my_snprintf (result, sizeof (result), "%.4Le %d", 999.996L, 33, 44, 55);
2247 ASSERT (strcmp (result, "1.0000e+03 33") == 0
2248 || strcmp (result, "1.0000e+003 33") == 0);
2249 ASSERT (retval == strlen (result));
2252 /* Test the support of the %g format directive. */
2254 { /* A positive number. */
2257 my_snprintf (result, sizeof (result), "%g %d", 12.75, 33, 44, 55);
2258 ASSERT (strcmp (result, "12.75 33") == 0);
2259 ASSERT (retval == strlen (result));
2262 { /* A larger positive number. */
2265 my_snprintf (result, sizeof (result), "%g %d", 1234567.0, 33, 44, 55);
2266 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2267 || strcmp (result, "1.23457e+006 33") == 0);
2268 ASSERT (retval == strlen (result));
2271 { /* Small and large positive numbers. */
2272 static struct { double value; const char *string; } data[] =
2274 { 1.234321234321234e-37, "1.23432e-37" },
2275 { 1.234321234321234e-36, "1.23432e-36" },
2276 { 1.234321234321234e-35, "1.23432e-35" },
2277 { 1.234321234321234e-34, "1.23432e-34" },
2278 { 1.234321234321234e-33, "1.23432e-33" },
2279 { 1.234321234321234e-32, "1.23432e-32" },
2280 { 1.234321234321234e-31, "1.23432e-31" },
2281 { 1.234321234321234e-30, "1.23432e-30" },
2282 { 1.234321234321234e-29, "1.23432e-29" },
2283 { 1.234321234321234e-28, "1.23432e-28" },
2284 { 1.234321234321234e-27, "1.23432e-27" },
2285 { 1.234321234321234e-26, "1.23432e-26" },
2286 { 1.234321234321234e-25, "1.23432e-25" },
2287 { 1.234321234321234e-24, "1.23432e-24" },
2288 { 1.234321234321234e-23, "1.23432e-23" },
2289 { 1.234321234321234e-22, "1.23432e-22" },
2290 { 1.234321234321234e-21, "1.23432e-21" },
2291 { 1.234321234321234e-20, "1.23432e-20" },
2292 { 1.234321234321234e-19, "1.23432e-19" },
2293 { 1.234321234321234e-18, "1.23432e-18" },
2294 { 1.234321234321234e-17, "1.23432e-17" },
2295 { 1.234321234321234e-16, "1.23432e-16" },
2296 { 1.234321234321234e-15, "1.23432e-15" },
2297 { 1.234321234321234e-14, "1.23432e-14" },
2298 { 1.234321234321234e-13, "1.23432e-13" },
2299 { 1.234321234321234e-12, "1.23432e-12" },
2300 { 1.234321234321234e-11, "1.23432e-11" },
2301 { 1.234321234321234e-10, "1.23432e-10" },
2302 { 1.234321234321234e-9, "1.23432e-09" },
2303 { 1.234321234321234e-8, "1.23432e-08" },
2304 { 1.234321234321234e-7, "1.23432e-07" },
2305 { 1.234321234321234e-6, "1.23432e-06" },
2306 { 1.234321234321234e-5, "1.23432e-05" },
2307 { 1.234321234321234e-4, "0.000123432" },
2308 { 1.234321234321234e-3, "0.00123432" },
2309 { 1.234321234321234e-2, "0.0123432" },
2310 { 1.234321234321234e-1, "0.123432" },
2311 { 1.234321234321234, "1.23432" },
2312 { 1.234321234321234e1, "12.3432" },
2313 { 1.234321234321234e2, "123.432" },
2314 { 1.234321234321234e3, "1234.32" },
2315 { 1.234321234321234e4, "12343.2" },
2316 { 1.234321234321234e5, "123432" },
2317 { 1.234321234321234e6, "1.23432e+06" },
2318 { 1.234321234321234e7, "1.23432e+07" },
2319 { 1.234321234321234e8, "1.23432e+08" },
2320 { 1.234321234321234e9, "1.23432e+09" },
2321 { 1.234321234321234e10, "1.23432e+10" },
2322 { 1.234321234321234e11, "1.23432e+11" },
2323 { 1.234321234321234e12, "1.23432e+12" },
2324 { 1.234321234321234e13, "1.23432e+13" },
2325 { 1.234321234321234e14, "1.23432e+14" },
2326 { 1.234321234321234e15, "1.23432e+15" },
2327 { 1.234321234321234e16, "1.23432e+16" },
2328 { 1.234321234321234e17, "1.23432e+17" },
2329 { 1.234321234321234e18, "1.23432e+18" },
2330 { 1.234321234321234e19, "1.23432e+19" },
2331 { 1.234321234321234e20, "1.23432e+20" },
2332 { 1.234321234321234e21, "1.23432e+21" },
2333 { 1.234321234321234e22, "1.23432e+22" },
2334 { 1.234321234321234e23, "1.23432e+23" },
2335 { 1.234321234321234e24, "1.23432e+24" },
2336 { 1.234321234321234e25, "1.23432e+25" },
2337 { 1.234321234321234e26, "1.23432e+26" },
2338 { 1.234321234321234e27, "1.23432e+27" },
2339 { 1.234321234321234e28, "1.23432e+28" },
2340 { 1.234321234321234e29, "1.23432e+29" },
2341 { 1.234321234321234e30, "1.23432e+30" },
2342 { 1.234321234321234e31, "1.23432e+31" },
2343 { 1.234321234321234e32, "1.23432e+32" },
2344 { 1.234321234321234e33, "1.23432e+33" },
2345 { 1.234321234321234e34, "1.23432e+34" },
2346 { 1.234321234321234e35, "1.23432e+35" },
2347 { 1.234321234321234e36, "1.23432e+36" }
2350 for (k = 0; k < SIZEOF (data); k++)
2354 my_snprintf (result, sizeof (result), "%g", data[k].value);
2355 const char *expected = data[k].string;
2356 ASSERT (strcmp (result, expected) == 0
2357 /* Some implementations produce exponents with 3 digits. */
2358 || (expected[strlen (expected) - 4] == 'e'
2359 && strlen (result) == strlen (expected) + 1
2360 && memcmp (result, expected, strlen (expected) - 2) == 0
2361 && result[strlen (expected) - 2] == '0'
2362 && strcmp (result + strlen (expected) - 1,
2363 expected + strlen (expected) - 2)
2365 ASSERT (retval == strlen (result));
2369 { /* A negative number. */
2372 my_snprintf (result, sizeof (result), "%g %d", -0.03125, 33, 44, 55);
2373 ASSERT (strcmp (result, "-0.03125 33") == 0);
2374 ASSERT (retval == strlen (result));
2377 { /* Positive zero. */
2380 my_snprintf (result, sizeof (result), "%g %d", 0.0, 33, 44, 55);
2381 ASSERT (strcmp (result, "0 33") == 0);
2382 ASSERT (retval == strlen (result));
2385 { /* Negative zero. */
2388 my_snprintf (result, sizeof (result), "%g %d", minus_zerod, 33, 44, 55);
2389 if (have_minus_zero ())
2390 ASSERT (strcmp (result, "-0 33") == 0);
2391 ASSERT (retval == strlen (result));
2394 { /* Positive infinity. */
2397 my_snprintf (result, sizeof (result), "%g %d", Infinityd (), 33, 44, 55);
2398 ASSERT (strcmp (result, "inf 33") == 0
2399 || strcmp (result, "infinity 33") == 0);
2400 ASSERT (retval == strlen (result));
2403 { /* Negative infinity. */
2406 my_snprintf (result, sizeof (result), "%g %d", - Infinityd (), 33, 44, 55);
2407 ASSERT (strcmp (result, "-inf 33") == 0
2408 || strcmp (result, "-infinity 33") == 0);
2409 ASSERT (retval == strlen (result));
2415 my_snprintf (result, sizeof (result), "%g %d", NaNd (), 33, 44, 55);
2416 ASSERT (strlen (result) >= 3 + 3
2417 && strisnan (result, 0, strlen (result) - 3, 0)
2418 && strcmp (result + strlen (result) - 3, " 33") == 0);
2419 ASSERT (retval == strlen (result));
2425 my_snprintf (result, sizeof (result), "%10g %d", 1.75, 33, 44, 55);
2426 ASSERT (strcmp (result, " 1.75 33") == 0);
2427 ASSERT (retval == strlen (result));
2433 my_snprintf (result, sizeof (result), "%-10g %d", 1.75, 33, 44, 55);
2434 ASSERT (strcmp (result, "1.75 33") == 0);
2435 ASSERT (retval == strlen (result));
2438 { /* FLAG_SHOWSIGN. */
2441 my_snprintf (result, sizeof (result), "%+g %d", 1.75, 33, 44, 55);
2442 ASSERT (strcmp (result, "+1.75 33") == 0);
2443 ASSERT (retval == strlen (result));
2449 my_snprintf (result, sizeof (result), "% g %d", 1.75, 33, 44, 55);
2450 ASSERT (strcmp (result, " 1.75 33") == 0);
2451 ASSERT (retval == strlen (result));
2457 my_snprintf (result, sizeof (result), "%#g %d", 1.75, 33, 44, 55);
2458 ASSERT (strcmp (result, "1.75000 33") == 0);
2459 ASSERT (retval == strlen (result));
2465 my_snprintf (result, sizeof (result), "%#.g %d", 1.75, 33, 44, 55);
2466 ASSERT (strcmp (result, "2. 33") == 0);
2467 ASSERT (retval == strlen (result));
2473 my_snprintf (result, sizeof (result), "%#.g %d", 9.75, 33, 44, 55);
2474 ASSERT (strcmp (result, "1.e+01 33") == 0
2475 || strcmp (result, "1.e+001 33") == 0);
2476 ASSERT (retval == strlen (result));
2479 { /* FLAG_ZERO with finite number. */
2482 my_snprintf (result, sizeof (result), "%010g %d", 1234.0, 33, 44, 55);
2483 ASSERT (strcmp (result, "0000001234 33") == 0);
2484 ASSERT (retval == strlen (result));
2487 { /* FLAG_ZERO with infinite number. */
2490 my_snprintf (result, sizeof (result), "%015g %d", - Infinityd (), 33, 44, 55);
2491 ASSERT (strcmp (result, " -inf 33") == 0
2492 || strcmp (result, " -infinity 33") == 0);
2493 ASSERT (retval == strlen (result));
2496 { /* FLAG_ZERO with NaN. */
2499 my_snprintf (result, sizeof (result), "%050g %d", NaNd (), 33, 44, 55);
2500 ASSERT (strlen (result) == 50 + 3
2501 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2502 && strcmp (result + strlen (result) - 3, " 33") == 0);
2503 ASSERT (retval == strlen (result));
2509 my_snprintf (result, sizeof (result), "%.g %d", 1234.0, 33, 44, 55);
2510 ASSERT (strcmp (result, "1e+03 33") == 0
2511 || strcmp (result, "1e+003 33") == 0);
2512 ASSERT (retval == strlen (result));
2515 { /* Precision with no rounding. */
2518 my_snprintf (result, sizeof (result), "%.5g %d", 999.951, 33, 44, 55);
2519 ASSERT (strcmp (result, "999.95 33") == 0);
2520 ASSERT (retval == strlen (result));
2523 { /* Precision with rounding. */
2526 my_snprintf (result, sizeof (result), "%.5g %d", 999.996, 33, 44, 55);
2527 ASSERT (strcmp (result, "1000 33") == 0);
2528 ASSERT (retval == strlen (result));
2531 { /* A positive number. */
2534 my_snprintf (result, sizeof (result), "%Lg %d", 12.75L, 33, 44, 55);
2535 ASSERT (strcmp (result, "12.75 33") == 0);
2536 ASSERT (retval == strlen (result));
2539 { /* A larger positive number. */
2542 my_snprintf (result, sizeof (result), "%Lg %d", 1234567.0L, 33, 44, 55);
2543 ASSERT (strcmp (result, "1.23457e+06 33") == 0
2544 || strcmp (result, "1.23457e+006 33") == 0);
2545 ASSERT (retval == strlen (result));
2548 { /* Small and large positive numbers. */
2549 static struct { long double value; const char *string; } data[] =
2551 { 1.234321234321234e-37L, "1.23432e-37" },
2552 { 1.234321234321234e-36L, "1.23432e-36" },
2553 { 1.234321234321234e-35L, "1.23432e-35" },
2554 { 1.234321234321234e-34L, "1.23432e-34" },
2555 { 1.234321234321234e-33L, "1.23432e-33" },
2556 { 1.234321234321234e-32L, "1.23432e-32" },
2557 { 1.234321234321234e-31L, "1.23432e-31" },
2558 { 1.234321234321234e-30L, "1.23432e-30" },
2559 { 1.234321234321234e-29L, "1.23432e-29" },
2560 { 1.234321234321234e-28L, "1.23432e-28" },
2561 { 1.234321234321234e-27L, "1.23432e-27" },
2562 { 1.234321234321234e-26L, "1.23432e-26" },
2563 { 1.234321234321234e-25L, "1.23432e-25" },
2564 { 1.234321234321234e-24L, "1.23432e-24" },
2565 { 1.234321234321234e-23L, "1.23432e-23" },
2566 { 1.234321234321234e-22L, "1.23432e-22" },
2567 { 1.234321234321234e-21L, "1.23432e-21" },
2568 { 1.234321234321234e-20L, "1.23432e-20" },
2569 { 1.234321234321234e-19L, "1.23432e-19" },
2570 { 1.234321234321234e-18L, "1.23432e-18" },
2571 { 1.234321234321234e-17L, "1.23432e-17" },
2572 { 1.234321234321234e-16L, "1.23432e-16" },
2573 { 1.234321234321234e-15L, "1.23432e-15" },
2574 { 1.234321234321234e-14L, "1.23432e-14" },
2575 { 1.234321234321234e-13L, "1.23432e-13" },
2576 { 1.234321234321234e-12L, "1.23432e-12" },
2577 { 1.234321234321234e-11L, "1.23432e-11" },
2578 { 1.234321234321234e-10L, "1.23432e-10" },
2579 { 1.234321234321234e-9L, "1.23432e-09" },
2580 { 1.234321234321234e-8L, "1.23432e-08" },
2581 { 1.234321234321234e-7L, "1.23432e-07" },
2582 { 1.234321234321234e-6L, "1.23432e-06" },
2583 { 1.234321234321234e-5L, "1.23432e-05" },
2584 { 1.234321234321234e-4L, "0.000123432" },
2585 { 1.234321234321234e-3L, "0.00123432" },
2586 { 1.234321234321234e-2L, "0.0123432" },
2587 { 1.234321234321234e-1L, "0.123432" },
2588 { 1.234321234321234L, "1.23432" },
2589 { 1.234321234321234e1L, "12.3432" },
2590 { 1.234321234321234e2L, "123.432" },
2591 { 1.234321234321234e3L, "1234.32" },
2592 { 1.234321234321234e4L, "12343.2" },
2593 { 1.234321234321234e5L, "123432" },
2594 { 1.234321234321234e6L, "1.23432e+06" },
2595 { 1.234321234321234e7L, "1.23432e+07" },
2596 { 1.234321234321234e8L, "1.23432e+08" },
2597 { 1.234321234321234e9L, "1.23432e+09" },
2598 { 1.234321234321234e10L, "1.23432e+10" },
2599 { 1.234321234321234e11L, "1.23432e+11" },
2600 { 1.234321234321234e12L, "1.23432e+12" },
2601 { 1.234321234321234e13L, "1.23432e+13" },
2602 { 1.234321234321234e14L, "1.23432e+14" },
2603 { 1.234321234321234e15L, "1.23432e+15" },
2604 { 1.234321234321234e16L, "1.23432e+16" },
2605 { 1.234321234321234e17L, "1.23432e+17" },
2606 { 1.234321234321234e18L, "1.23432e+18" },
2607 { 1.234321234321234e19L, "1.23432e+19" },
2608 { 1.234321234321234e20L, "1.23432e+20" },
2609 { 1.234321234321234e21L, "1.23432e+21" },
2610 { 1.234321234321234e22L, "1.23432e+22" },
2611 { 1.234321234321234e23L, "1.23432e+23" },
2612 { 1.234321234321234e24L, "1.23432e+24" },
2613 { 1.234321234321234e25L, "1.23432e+25" },
2614 { 1.234321234321234e26L, "1.23432e+26" },
2615 { 1.234321234321234e27L, "1.23432e+27" },
2616 { 1.234321234321234e28L, "1.23432e+28" },
2617 { 1.234321234321234e29L, "1.23432e+29" },
2618 { 1.234321234321234e30L, "1.23432e+30" },
2619 { 1.234321234321234e31L, "1.23432e+31" },
2620 { 1.234321234321234e32L, "1.23432e+32" },
2621 { 1.234321234321234e33L, "1.23432e+33" },
2622 { 1.234321234321234e34L, "1.23432e+34" },
2623 { 1.234321234321234e35L, "1.23432e+35" },
2624 { 1.234321234321234e36L, "1.23432e+36" }
2627 for (k = 0; k < SIZEOF (data); k++)
2631 my_snprintf (result, sizeof (result), "%Lg", data[k].value);
2632 const char *expected = data[k].string;
2633 ASSERT (strcmp (result, expected) == 0
2634 /* Some implementations produce exponents with 3 digits. */
2635 || (expected[strlen (expected) - 4] == 'e'
2636 && strlen (result) == strlen (expected) + 1
2637 && memcmp (result, expected, strlen (expected) - 2) == 0
2638 && result[strlen (expected) - 2] == '0'
2639 && strcmp (result + strlen (expected) - 1,
2640 expected + strlen (expected) - 2)
2642 ASSERT (retval == strlen (result));
2646 { /* A negative number. */
2649 my_snprintf (result, sizeof (result), "%Lg %d", -0.03125L, 33, 44, 55);
2650 ASSERT (strcmp (result, "-0.03125 33") == 0);
2651 ASSERT (retval == strlen (result));
2654 { /* Positive zero. */
2657 my_snprintf (result, sizeof (result), "%Lg %d", 0.0L, 33, 44, 55);
2658 ASSERT (strcmp (result, "0 33") == 0);
2659 ASSERT (retval == strlen (result));
2662 { /* Negative zero. */
2665 my_snprintf (result, sizeof (result), "%Lg %d", minus_zerol, 33, 44, 55);
2666 if (have_minus_zero ())
2667 ASSERT (strcmp (result, "-0 33") == 0);
2668 ASSERT (retval == strlen (result));
2671 { /* Positive infinity. */
2674 my_snprintf (result, sizeof (result), "%Lg %d", Infinityl (), 33, 44, 55);
2675 ASSERT (strcmp (result, "inf 33") == 0
2676 || strcmp (result, "infinity 33") == 0);
2677 ASSERT (retval == strlen (result));
2680 { /* Negative infinity. */
2683 my_snprintf (result, sizeof (result), "%Lg %d", - Infinityl (), 33, 44, 55);
2684 ASSERT (strcmp (result, "-inf 33") == 0
2685 || strcmp (result, "-infinity 33") == 0);
2686 ASSERT (retval == strlen (result));
2692 my_snprintf (result, sizeof (result), "%Lg %d", NaNl (), 33, 44, 55);
2693 ASSERT (strlen (result) >= 3 + 3
2694 && strisnan (result, 0, strlen (result) - 3, 0)
2695 && strcmp (result + strlen (result) - 3, " 33") == 0);
2696 ASSERT (retval == strlen (result));
2698 #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_))
2700 static union { unsigned int word[4]; long double value; } x =
2701 { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
2704 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2705 ASSERT (strlen (result) >= 3 + 3
2706 && strisnan (result, 0, strlen (result) - 3, 0)
2707 && strcmp (result + strlen (result) - 3, " 33") == 0);
2708 ASSERT (retval == strlen (result));
2711 /* Signalling NaN. */
2712 static union { unsigned int word[4]; long double value; } x =
2713 { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
2716 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2717 ASSERT (strlen (result) >= 3 + 3
2718 && strisnan (result, 0, strlen (result) - 3, 0)
2719 && strcmp (result + strlen (result) - 3, " 33") == 0);
2720 ASSERT (retval == strlen (result));
2722 /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
2723 Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
2724 Intel IA-64 Architecture Software Developer's Manual, Volume 1:
2725 Application Architecture.
2726 Table 5-2 "Floating-Point Register Encodings"
2727 Figure 5-6 "Memory to Floating-Point Register Data Translation"
2730 static union { unsigned int word[4]; long double value; } x =
2731 { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
2734 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2735 ASSERT (strlen (result) >= 3 + 3
2736 && strisnan (result, 0, strlen (result) - 3, 0)
2737 && strcmp (result + strlen (result) - 3, " 33") == 0);
2738 ASSERT (retval == strlen (result));
2740 { /* Pseudo-Infinity. */
2741 static union { unsigned int word[4]; long double value; } x =
2742 { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
2745 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2746 ASSERT (strlen (result) >= 3 + 3
2747 && strisnan (result, 0, strlen (result) - 3, 0)
2748 && strcmp (result + strlen (result) - 3, " 33") == 0);
2749 ASSERT (retval == strlen (result));
2751 { /* Pseudo-Zero. */
2752 static union { unsigned int word[4]; long double value; } x =
2753 { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
2756 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2757 ASSERT (strlen (result) >= 3 + 3
2758 && strisnan (result, 0, strlen (result) - 3, 0)
2759 && strcmp (result + strlen (result) - 3, " 33") == 0);
2760 ASSERT (retval == strlen (result));
2762 { /* Unnormalized number. */
2763 static union { unsigned int word[4]; long double value; } x =
2764 { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
2767 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2768 ASSERT (strlen (result) >= 3 + 3
2769 && strisnan (result, 0, strlen (result) - 3, 0)
2770 && strcmp (result + strlen (result) - 3, " 33") == 0);
2771 ASSERT (retval == strlen (result));
2773 { /* Pseudo-Denormal. */
2774 static union { unsigned int word[4]; long double value; } x =
2775 { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
2778 my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
2779 ASSERT (strlen (result) >= 3 + 3
2780 && strisnan (result, 0, strlen (result) - 3, 0)
2781 && strcmp (result + strlen (result) - 3, " 33") == 0);
2782 ASSERT (retval == strlen (result));
2789 my_snprintf (result, sizeof (result), "%10Lg %d", 1.75L, 33, 44, 55);
2790 ASSERT (strcmp (result, " 1.75 33") == 0);
2791 ASSERT (retval == strlen (result));
2797 my_snprintf (result, sizeof (result), "%-10Lg %d", 1.75L, 33, 44, 55);
2798 ASSERT (strcmp (result, "1.75 33") == 0);
2799 ASSERT (retval == strlen (result));
2802 { /* FLAG_SHOWSIGN. */
2805 my_snprintf (result, sizeof (result), "%+Lg %d", 1.75L, 33, 44, 55);
2806 ASSERT (strcmp (result, "+1.75 33") == 0);
2807 ASSERT (retval == strlen (result));
2813 my_snprintf (result, sizeof (result), "% Lg %d", 1.75L, 33, 44, 55);
2814 ASSERT (strcmp (result, " 1.75 33") == 0);
2815 ASSERT (retval == strlen (result));
2821 my_snprintf (result, sizeof (result), "%#Lg %d", 1.75L, 33, 44, 55);
2822 ASSERT (strcmp (result, "1.75000 33") == 0);
2823 ASSERT (retval == strlen (result));
2829 my_snprintf (result, sizeof (result), "%#.Lg %d", 1.75L, 33, 44, 55);
2830 ASSERT (strcmp (result, "2. 33") == 0);
2831 ASSERT (retval == strlen (result));
2837 my_snprintf (result, sizeof (result), "%#.Lg %d", 9.75L, 33, 44, 55);
2838 ASSERT (strcmp (result, "1.e+01 33") == 0
2839 || strcmp (result, "1.e+001 33") == 0);
2840 ASSERT (retval == strlen (result));
2843 { /* FLAG_ZERO with finite number. */
2846 my_snprintf (result, sizeof (result), "%010Lg %d", 1234.0L, 33, 44, 55);
2847 ASSERT (strcmp (result, "0000001234 33") == 0);
2848 ASSERT (retval == strlen (result));
2851 { /* FLAG_ZERO with infinite number. */
2854 my_snprintf (result, sizeof (result), "%015Lg %d", - Infinityl (), 33, 44, 55);
2855 ASSERT (strcmp (result, " -inf 33") == 0
2856 || strcmp (result, " -infinity 33") == 0);
2857 ASSERT (retval == strlen (result));
2860 { /* FLAG_ZERO with NaN. */
2863 my_snprintf (result, sizeof (result), "%050Lg %d", NaNl (), 33, 44, 55);
2864 ASSERT (strlen (result) == 50 + 3
2865 && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
2866 && strcmp (result + strlen (result) - 3, " 33") == 0);
2867 ASSERT (retval == strlen (result));
2873 my_snprintf (result, sizeof (result), "%.Lg %d", 1234.0L, 33, 44, 55);
2874 ASSERT (strcmp (result, "1e+03 33") == 0
2875 || strcmp (result, "1e+003 33") == 0);
2876 ASSERT (retval == strlen (result));
2879 { /* Precision with no rounding. */
2882 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.951L, 33, 44, 55);
2883 ASSERT (strcmp (result, "999.95 33") == 0);
2884 ASSERT (retval == strlen (result));
2887 { /* Precision with rounding. */
2890 my_snprintf (result, sizeof (result), "%.5Lg %d", 999.996L, 33, 44, 55);
2891 ASSERT (strcmp (result, "1000 33") == 0);
2892 ASSERT (retval == strlen (result));
2895 /* Test the support of the %n format directive. */
2901 my_snprintf (result, sizeof (result), "%d %n", 123, &count, 33, 44, 55);
2902 ASSERT (strcmp (result, "123 ") == 0);
2903 ASSERT (retval == strlen (result));
2904 ASSERT (count == 4);
2907 /* Test the support of the POSIX/XSI format strings with positions. */
2912 my_snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
2913 ASSERT (strcmp (result, "55 33") == 0);
2914 ASSERT (retval == strlen (result));
2917 /* Test the support of the grouping flag. */
2922 my_snprintf (result, sizeof (result), "%'d %d", 1234567, 99);
2923 ASSERT (result[strlen (result) - 1] == '9');
2924 ASSERT (retval == strlen (result));
2927 /* Test the support of the left-adjust flag. */
2932 my_snprintf (result, sizeof (result), "a%*sc", -3, "b");
2933 ASSERT (strcmp (result, "ab c") == 0);
2934 ASSERT (retval == strlen (result));
2940 my_snprintf (result, sizeof (result), "a%-*sc", 3, "b");
2941 ASSERT (strcmp (result, "ab c") == 0);
2942 ASSERT (retval == strlen (result));
2948 my_snprintf (result, sizeof (result), "a%-*sc", -3, "b");
2949 ASSERT (strcmp (result, "ab c") == 0);
2950 ASSERT (retval == strlen (result));
2953 /* Test the support of large precision. */
2958 my_snprintf (result, sizeof (result), "%.4000d %d", 1234567, 99);
2960 for (i = 0; i < 4000 - 7; i++)
2961 ASSERT (result[i] == '0');
2962 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2963 ASSERT (retval == strlen (result));
2969 my_snprintf (result, sizeof (result), "%.*d %d", 4000, 1234567, 99);
2971 for (i = 0; i < 4000 - 7; i++)
2972 ASSERT (result[i] == '0');
2973 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2974 ASSERT (retval == strlen (result));
2980 my_snprintf (result, sizeof (result), "%.4000d %d", -1234567, 99);
2982 ASSERT (result[0] == '-');
2983 for (i = 0; i < 4000 - 7; i++)
2984 ASSERT (result[1 + i] == '0');
2985 ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
2986 ASSERT (retval == strlen (result));
2992 my_snprintf (result, sizeof (result), "%.4000u %d", 1234567, 99);
2994 for (i = 0; i < 4000 - 7; i++)
2995 ASSERT (result[i] == '0');
2996 ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
2997 ASSERT (retval == strlen (result));
3003 my_snprintf (result, sizeof (result), "%.4000o %d", 1234567, 99);
3005 for (i = 0; i < 4000 - 7; i++)
3006 ASSERT (result[i] == '0');
3007 ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
3008 ASSERT (retval == strlen (result));
3014 my_snprintf (result, sizeof (result), "%.4000x %d", 1234567, 99);
3016 for (i = 0; i < 4000 - 6; i++)
3017 ASSERT (result[i] == '0');
3018 ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
3019 ASSERT (retval == strlen (result));
3025 my_snprintf (result, sizeof (result), "%#.4000x %d", 1234567, 99);
3027 ASSERT (result[0] == '0');
3028 ASSERT (result[1] == 'x');
3029 for (i = 0; i < 4000 - 6; i++)
3030 ASSERT (result[2 + i] == '0');
3031 ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
3032 ASSERT (retval == strlen (result));
3038 my_snprintf (result, sizeof (result), "%.4000f %d", 1.0, 99);
3040 ASSERT (result[0] == '1');
3041 ASSERT (result[1] == '.');
3042 for (i = 0; i < 4000; i++)
3043 ASSERT (result[2 + i] == '0');
3044 ASSERT (strcmp (result + 2 + 4000, " 99") == 0);
3045 ASSERT (retval == strlen (result));
3051 my_snprintf (result, sizeof (result), "%.511f %d", 1.0, 99);
3053 ASSERT (result[0] == '1');
3054 ASSERT (result[1] == '.');
3055 for (i = 0; i < 511; i++)
3056 ASSERT (result[2 + i] == '0');
3057 ASSERT (strcmp (result + 2 + 511, " 99") == 0);
3058 ASSERT (retval == strlen (result));
3067 for (i = 0; i < sizeof (input) - 1; i++)
3068 input[i] = 'a' + ((1000000 / (i + 1)) % 26);
3070 retval = my_snprintf (result, sizeof (result), "%.4000s %d", input, 99);
3071 ASSERT (memcmp (result, input, 4000) == 0);
3072 ASSERT (strcmp (result + 4000, " 99") == 0);
3073 ASSERT (retval == strlen (result));
3076 /* Test the support of the %s format directive. */
3078 /* To verify that these tests succeed, it is necessary to run them under
3079 a tool that checks against invalid memory accesses, such as ElectricFence
3080 or "valgrind --tool=memcheck". */
3084 for (i = 1; i <= 8; i++)
3090 block = (char *) malloc (i);
3091 memcpy (block, "abcdefgh", i);
3092 retval = my_snprintf (result, sizeof (result), "%.*s", (int) i, block);
3093 ASSERT (memcmp (result, block, i) == 0);
3094 ASSERT (result[i] == '\0');
3095 ASSERT (retval == strlen (result));
3103 for (i = 1; i <= 8; i++)
3110 block = (wchar_t *) malloc (i * sizeof (wchar_t));
3111 for (j = 0; j < i; j++)
3112 block[j] = "abcdefgh"[j];
3113 retval = my_snprintf (result, sizeof (result), "%.*ls", (int) i, block);
3114 ASSERT (memcmp (result, "abcdefgh", i) == 0);
3115 ASSERT (result[i] == '\0');
3116 ASSERT (retval == strlen (result));