1 /* Copyright (C) 1991-2002, 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library 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 GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
28 #include <bits/libc-lock.h>
29 #include <sys/param.h>
31 #include <locale/localeinfo.h>
34 /* This code is shared between the standard stdio implementation found
35 in GNU C library and the libio implementation originally found in
38 Beside this it is also shared between the normal and wide character
39 implementation as defined in ISO/IEC 9899:1990/Amendment 1:1995. */
43 /* This code is for use in libio. */
45 # define FILE _IO_FILE
47 # define va_list _IO_va_list
49 # define BUFSIZ _IO_BUFSIZ
50 # define ARGCHECK(S, Format) \
53 /* Check file argument for consistence. */ \
55 if (S->_flags & _IO_NO_WRITES) \
57 __set_errno (EBADF); \
66 # define UNBUFFERED_P(S) ((S)->_IO_file_flags & _IO_UNBUFFERED)
68 # ifndef COMPILE_WPRINTF
69 # define vfprintf _IO_vfprintf
71 # define UCHAR_T unsigned char
74 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - '0') < 10)
76 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
77 # define PAD(Padchar) \
79 done += INTUSE(_IO_padn) (s, (Padchar), width)
80 # define PUTC(C, F) _IO_putc_unlocked (C, F)
81 # define ORIENT if (s->_vtable_offset == 0 && _IO_fwide (s, -1) != -1)\
84 # define vfprintf _IO_vfwprintf
85 # define CHAR_T wchar_t
86 /* This is a hack!!! There should be a type uwchar_t. */
87 # define UCHAR_T unsigned int /* uwchar_t */
89 # define L_(Str) L##Str
90 # define ISDIGIT(Ch) ((unsigned int) ((Ch) - L'0') < 10)
94 # define PUT(F, S, N) _IO_sputn ((F), (S), (N))
95 # define PAD(Padchar) \
97 done += _IO_wpadn (s, (Padchar), width)
98 # define PUTC(C, F) _IO_putwc_unlocked (C, F)
99 # define ORIENT if (_IO_fwide (s, 1) != 1) return -1
101 # define _itoa(Val, Buf, Base, Case) _itowa (Val, Buf, Base, Case)
102 # define _itoa_word(Val, Buf, Base, Case) _itowa_word (Val, Buf, Base, Case)
106 #else /* ! USE_IN_LIBIO */
107 /* This code is for use in the GNU C library. */
108 # define ARGCHECK(S, Format) \
111 /* Check file argument for consistence. */ \
112 if (!__validfp (S) || !S->__mode.__write) \
114 __set_errno (EBADF); \
117 if (Format == NULL) \
119 __set_errno (EINVAL); \
124 if (__flshfp (S, EOF) == EOF) \
129 # define UNBUFFERED_P(s) ((s)->__buffer == NULL)
132 # define UCHAR_T unsigned char
135 # define ISDIGIT(Ch) isdigit (Ch)
137 # define PUT(F, S, N) fwrite (S, 1, N, F)
138 ssize_t __printf_pad
__P ((FILE *, char pad
, size_t n
));
139 # define PAD(Padchar) \
141 { ssize_t __res = __printf_pad (s, (Padchar), width); \
148 # define PUTC(C, F) putc (C, F)
150 /* XXX These declarations should go as soon as the stdio header files
151 have these prototypes. */
152 extern void __flockfile (FILE *);
153 extern void __funlockfile (FILE *);
154 #endif /* USE_IN_LIBIO */
156 #include "_i18n_number.h"
158 /* Include the shared code for parsing the format string. */
159 #include "printf-parse.h"
162 #define outchar(Ch) \
165 register const INT_T outc = (Ch); \
166 if (PUTC (outc, s) == EOF) \
176 #define outstring(String, Len) \
179 if ((size_t) PUT (s, (String), (Len)) != (size_t) (Len)) \
188 /* For handling long_double and longlong we use the same flag. If
189 `long' and `long long' are effectively the same type define it to
191 #if LONG_MAX == LONG_LONG_MAX
192 # define is_longlong 0
194 # define is_longlong is_long_double
197 /* If `long' and `int' is effectively the same type we don't have to
198 handle `long separately. */
199 #if INT_MAX == LONG_MAX
200 # define is_long_num 0
202 # define is_long_num is_long
206 /* Global variables. */
207 static const CHAR_T null
[] = L_("(null)");
210 /* Helper function to provide temporary buffering for unbuffered streams. */
211 static int buffered_vfprintf
__P ((FILE *stream
, const CHAR_T
*fmt
, va_list))
214 /* Handle unknown format specifier. */
215 static int printf_unknown
__P ((FILE *, const struct printf_info
*,
216 const void *const *));
218 /* Group digits of number string. */
219 #ifdef COMPILE_WPRINTF
220 static CHAR_T
*group_number
__P ((CHAR_T
*, CHAR_T
*, const char *, wchar_t))
223 static CHAR_T
*group_number
__P ((CHAR_T
*, CHAR_T
*, const char *,
224 const char *)) internal_function
;
228 /* The function itself. */
230 vfprintf (FILE *s
, const CHAR_T
*format
, va_list ap
)
232 /* The character used as thousands separator. */
233 #ifdef COMPILE_WPRINTF
234 wchar_t thousands_sep
= L
'\0';
236 const char *thousands_sep
= NULL
;
239 /* The string describing the size of groups of digits. */
240 const char *grouping
;
242 /* Place to accumulate the result. */
245 /* Current character in format string. */
248 /* End of leading constant string. */
249 const UCHAR_T
*lead_str_end
;
251 /* Points to next format specifier. */
252 const UCHAR_T
*end_of_spec
;
254 /* Buffer intermediate results. */
255 CHAR_T work_buffer
[1000];
256 CHAR_T
*workstart
= NULL
;
259 /* State for restartable multibyte character handling functions. */
260 #ifndef COMPILE_WPRINTF
264 /* We have to save the original argument pointer. */
267 /* Count number of specifiers we already processed. */
270 /* For the %m format we may need the current `errno' value. */
271 int save_errno
= errno
;
274 /* This table maps a character into a number representing a
275 class. In each step there is a destination label for each
277 static const int jump_table
[] =
279 /* ' ' */ 1, 0, 0, /* '#' */ 4,
280 0, /* '%' */ 14, 0, /* '\''*/ 6,
281 0, 0, /* '*' */ 7, /* '+' */ 2,
282 0, /* '-' */ 3, /* '.' */ 9, 0,
283 /* '0' */ 5, /* '1' */ 8, /* '2' */ 8, /* '3' */ 8,
284 /* '4' */ 8, /* '5' */ 8, /* '6' */ 8, /* '7' */ 8,
285 /* '8' */ 8, /* '9' */ 8, 0, 0,
287 0, /* 'A' */ 26, 0, /* 'C' */ 25,
288 0, /* 'E' */ 19, /* F */ 19, /* 'G' */ 19,
289 0, /* 'I' */ 29, 0, 0,
290 /* 'L' */ 12, 0, 0, 0,
291 0, 0, 0, /* 'S' */ 21,
293 /* 'X' */ 18, 0, /* 'Z' */ 13, 0,
295 0, /* 'a' */ 26, 0, /* 'c' */ 20,
296 /* 'd' */ 15, /* 'e' */ 19, /* 'f' */ 19, /* 'g' */ 19,
297 /* 'h' */ 10, /* 'i' */ 15, /* 'j' */ 28, 0,
298 /* 'l' */ 11, /* 'm' */ 24, /* 'n' */ 23, /* 'o' */ 17,
299 /* 'p' */ 22, /* 'q' */ 12, 0, /* 's' */ 21,
300 /* 't' */ 27, /* 'u' */ 16, 0, 0,
301 /* 'x' */ 18, 0, /* 'z' */ 13
304 #define NOT_IN_JUMP_RANGE(Ch) ((Ch) < L_(' ') || (Ch) > L_('z'))
305 #define CHAR_CLASS(Ch) (jump_table[(INT_T) (Ch) - L_(' ')])
306 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined SHARED
307 /* 'int' is enough and it saves some space on 64 bit systems. */
308 # define JUMP_TABLE_TYPE const int
309 # define JUMP(ChExpr, table) \
313 void *__unbounded ptr; \
315 offset = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
316 : table[CHAR_CLASS (spec)]; \
317 ptr = &&do_form_unknown + offset; \
322 # define JUMP_TABLE_TYPE const void *const
323 # define JUMP(ChExpr, table) \
326 const void *__unbounded ptr; \
328 ptr = NOT_IN_JUMP_RANGE (spec) ? REF (form_unknown) \
329 : table[CHAR_CLASS (spec)]; \
335 #define STEP0_3_TABLE \
336 /* Step 0: at the beginning. */ \
337 static JUMP_TABLE_TYPE step0_jumps[30] = \
339 REF (form_unknown), \
340 REF (flag_space), /* for ' ' */ \
341 REF (flag_plus), /* for '+' */ \
342 REF (flag_minus), /* for '-' */ \
343 REF (flag_hash), /* for '<hash>' */ \
344 REF (flag_zero), /* for '0' */ \
345 REF (flag_quote), /* for '\'' */ \
346 REF (width_asterics), /* for '*' */ \
347 REF (width), /* for '1'...'9' */ \
348 REF (precision), /* for '.' */ \
349 REF (mod_half), /* for 'h' */ \
350 REF (mod_long), /* for 'l' */ \
351 REF (mod_longlong), /* for 'L', 'q' */ \
352 REF (mod_size_t), /* for 'z', 'Z' */ \
353 REF (form_percent), /* for '%' */ \
354 REF (form_integer), /* for 'd', 'i' */ \
355 REF (form_unsigned), /* for 'u' */ \
356 REF (form_octal), /* for 'o' */ \
357 REF (form_hexa), /* for 'X', 'x' */ \
358 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
359 REF (form_character), /* for 'c' */ \
360 REF (form_string), /* for 's', 'S' */ \
361 REF (form_pointer), /* for 'p' */ \
362 REF (form_number), /* for 'n' */ \
363 REF (form_strerror), /* for 'm' */ \
364 REF (form_wcharacter), /* for 'C' */ \
365 REF (form_floathex), /* for 'A', 'a' */ \
366 REF (mod_ptrdiff_t), /* for 't' */ \
367 REF (mod_intmax_t), /* for 'j' */ \
368 REF (flag_i18n), /* for 'I' */ \
370 /* Step 1: after processing width. */ \
371 static JUMP_TABLE_TYPE step1_jumps[30] = \
373 REF (form_unknown), \
374 REF (form_unknown), /* for ' ' */ \
375 REF (form_unknown), /* for '+' */ \
376 REF (form_unknown), /* for '-' */ \
377 REF (form_unknown), /* for '<hash>' */ \
378 REF (form_unknown), /* for '0' */ \
379 REF (form_unknown), /* for '\'' */ \
380 REF (form_unknown), /* for '*' */ \
381 REF (form_unknown), /* for '1'...'9' */ \
382 REF (precision), /* for '.' */ \
383 REF (mod_half), /* for 'h' */ \
384 REF (mod_long), /* for 'l' */ \
385 REF (mod_longlong), /* for 'L', 'q' */ \
386 REF (mod_size_t), /* for 'z', 'Z' */ \
387 REF (form_percent), /* for '%' */ \
388 REF (form_integer), /* for 'd', 'i' */ \
389 REF (form_unsigned), /* for 'u' */ \
390 REF (form_octal), /* for 'o' */ \
391 REF (form_hexa), /* for 'X', 'x' */ \
392 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
393 REF (form_character), /* for 'c' */ \
394 REF (form_string), /* for 's', 'S' */ \
395 REF (form_pointer), /* for 'p' */ \
396 REF (form_number), /* for 'n' */ \
397 REF (form_strerror), /* for 'm' */ \
398 REF (form_wcharacter), /* for 'C' */ \
399 REF (form_floathex), /* for 'A', 'a' */ \
400 REF (mod_ptrdiff_t), /* for 't' */ \
401 REF (mod_intmax_t), /* for 'j' */ \
402 REF (flag_i18n) /* for 'I' */ \
404 /* Step 2: after processing precision. */ \
405 static JUMP_TABLE_TYPE step2_jumps[30] = \
407 REF (form_unknown), \
408 REF (form_unknown), /* for ' ' */ \
409 REF (form_unknown), /* for '+' */ \
410 REF (form_unknown), /* for '-' */ \
411 REF (form_unknown), /* for '<hash>' */ \
412 REF (form_unknown), /* for '0' */ \
413 REF (form_unknown), /* for '\'' */ \
414 REF (form_unknown), /* for '*' */ \
415 REF (form_unknown), /* for '1'...'9' */ \
416 REF (form_unknown), /* for '.' */ \
417 REF (mod_half), /* for 'h' */ \
418 REF (mod_long), /* for 'l' */ \
419 REF (mod_longlong), /* for 'L', 'q' */ \
420 REF (mod_size_t), /* for 'z', 'Z' */ \
421 REF (form_percent), /* for '%' */ \
422 REF (form_integer), /* for 'd', 'i' */ \
423 REF (form_unsigned), /* for 'u' */ \
424 REF (form_octal), /* for 'o' */ \
425 REF (form_hexa), /* for 'X', 'x' */ \
426 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
427 REF (form_character), /* for 'c' */ \
428 REF (form_string), /* for 's', 'S' */ \
429 REF (form_pointer), /* for 'p' */ \
430 REF (form_number), /* for 'n' */ \
431 REF (form_strerror), /* for 'm' */ \
432 REF (form_wcharacter), /* for 'C' */ \
433 REF (form_floathex), /* for 'A', 'a' */ \
434 REF (mod_ptrdiff_t), /* for 't' */ \
435 REF (mod_intmax_t), /* for 'j' */ \
436 REF (flag_i18n) /* for 'I' */ \
438 /* Step 3a: after processing first 'h' modifier. */ \
439 static JUMP_TABLE_TYPE step3a_jumps[30] = \
441 REF (form_unknown), \
442 REF (form_unknown), /* for ' ' */ \
443 REF (form_unknown), /* for '+' */ \
444 REF (form_unknown), /* for '-' */ \
445 REF (form_unknown), /* for '<hash>' */ \
446 REF (form_unknown), /* for '0' */ \
447 REF (form_unknown), /* for '\'' */ \
448 REF (form_unknown), /* for '*' */ \
449 REF (form_unknown), /* for '1'...'9' */ \
450 REF (form_unknown), /* for '.' */ \
451 REF (mod_halfhalf), /* for 'h' */ \
452 REF (form_unknown), /* for 'l' */ \
453 REF (form_unknown), /* for 'L', 'q' */ \
454 REF (form_unknown), /* for 'z', 'Z' */ \
455 REF (form_percent), /* for '%' */ \
456 REF (form_integer), /* for 'd', 'i' */ \
457 REF (form_unsigned), /* for 'u' */ \
458 REF (form_octal), /* for 'o' */ \
459 REF (form_hexa), /* for 'X', 'x' */ \
460 REF (form_unknown), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
461 REF (form_unknown), /* for 'c' */ \
462 REF (form_unknown), /* for 's', 'S' */ \
463 REF (form_unknown), /* for 'p' */ \
464 REF (form_number), /* for 'n' */ \
465 REF (form_unknown), /* for 'm' */ \
466 REF (form_unknown), /* for 'C' */ \
467 REF (form_unknown), /* for 'A', 'a' */ \
468 REF (form_unknown), /* for 't' */ \
469 REF (form_unknown), /* for 'j' */ \
470 REF (form_unknown) /* for 'I' */ \
472 /* Step 3b: after processing first 'l' modifier. */ \
473 static JUMP_TABLE_TYPE step3b_jumps[30] = \
475 REF (form_unknown), \
476 REF (form_unknown), /* for ' ' */ \
477 REF (form_unknown), /* for '+' */ \
478 REF (form_unknown), /* for '-' */ \
479 REF (form_unknown), /* for '<hash>' */ \
480 REF (form_unknown), /* for '0' */ \
481 REF (form_unknown), /* for '\'' */ \
482 REF (form_unknown), /* for '*' */ \
483 REF (form_unknown), /* for '1'...'9' */ \
484 REF (form_unknown), /* for '.' */ \
485 REF (form_unknown), /* for 'h' */ \
486 REF (mod_longlong), /* for 'l' */ \
487 REF (form_unknown), /* for 'L', 'q' */ \
488 REF (form_unknown), /* for 'z', 'Z' */ \
489 REF (form_percent), /* for '%' */ \
490 REF (form_integer), /* for 'd', 'i' */ \
491 REF (form_unsigned), /* for 'u' */ \
492 REF (form_octal), /* for 'o' */ \
493 REF (form_hexa), /* for 'X', 'x' */ \
494 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
495 REF (form_character), /* for 'c' */ \
496 REF (form_string), /* for 's', 'S' */ \
497 REF (form_pointer), /* for 'p' */ \
498 REF (form_number), /* for 'n' */ \
499 REF (form_strerror), /* for 'm' */ \
500 REF (form_wcharacter), /* for 'C' */ \
501 REF (form_floathex), /* for 'A', 'a' */ \
502 REF (form_unknown), /* for 't' */ \
503 REF (form_unknown), /* for 'j' */ \
504 REF (form_unknown) /* for 'I' */ \
507 #define STEP4_TABLE \
508 /* Step 4: processing format specifier. */ \
509 static JUMP_TABLE_TYPE step4_jumps[30] = \
511 REF (form_unknown), \
512 REF (form_unknown), /* for ' ' */ \
513 REF (form_unknown), /* for '+' */ \
514 REF (form_unknown), /* for '-' */ \
515 REF (form_unknown), /* for '<hash>' */ \
516 REF (form_unknown), /* for '0' */ \
517 REF (form_unknown), /* for '\'' */ \
518 REF (form_unknown), /* for '*' */ \
519 REF (form_unknown), /* for '1'...'9' */ \
520 REF (form_unknown), /* for '.' */ \
521 REF (form_unknown), /* for 'h' */ \
522 REF (form_unknown), /* for 'l' */ \
523 REF (form_unknown), /* for 'L', 'q' */ \
524 REF (form_unknown), /* for 'z', 'Z' */ \
525 REF (form_percent), /* for '%' */ \
526 REF (form_integer), /* for 'd', 'i' */ \
527 REF (form_unsigned), /* for 'u' */ \
528 REF (form_octal), /* for 'o' */ \
529 REF (form_hexa), /* for 'X', 'x' */ \
530 REF (form_float), /* for 'E', 'e', 'F', 'f', 'G', 'g' */ \
531 REF (form_character), /* for 'c' */ \
532 REF (form_string), /* for 's', 'S' */ \
533 REF (form_pointer), /* for 'p' */ \
534 REF (form_number), /* for 'n' */ \
535 REF (form_strerror), /* for 'm' */ \
536 REF (form_wcharacter), /* for 'C' */ \
537 REF (form_floathex), /* for 'A', 'a' */ \
538 REF (form_unknown), /* for 't' */ \
539 REF (form_unknown), /* for 'j' */ \
540 REF (form_unknown) /* for 'I' */ \
544 #define process_arg(fspec) \
545 /* Start real work. We know about all flags and modifiers and \
546 now process the wanted format specifier. */ \
547 LABEL (form_percent): \
548 /* Write a literal "%". */ \
552 LABEL (form_integer): \
553 /* Signed decimal integer. */ \
558 long long int signed_number; \
561 signed_number = va_arg (ap, long long int); \
563 signed_number = args_value[fspec->data_arg].pa_long_long_int; \
565 is_negative = signed_number < 0; \
566 number.longlong = is_negative ? (- signed_number) : signed_number; \
568 goto LABEL (longlong_number); \
572 long int signed_number; \
577 signed_number = va_arg (ap, long int); \
578 else /* `char' and `short int' will be promoted to `int'. */ \
579 signed_number = va_arg (ap, int); \
583 signed_number = args_value[fspec->data_arg].pa_long_int; \
584 else /* `char' and `short int' will be promoted to `int'. */ \
585 signed_number = args_value[fspec->data_arg].pa_int; \
587 is_negative = signed_number < 0; \
588 number.word = is_negative ? (- signed_number) : signed_number; \
590 goto LABEL (number); \
594 LABEL (form_unsigned): \
595 /* Unsigned decimal integer. */ \
597 goto LABEL (unsigned_number); \
600 LABEL (form_octal): \
601 /* Unsigned octal integer. */ \
603 goto LABEL (unsigned_number); \
607 /* Unsigned hexadecimal integer. */ \
610 LABEL (unsigned_number): /* Unsigned number of base BASE. */ \
612 /* ISO specifies the `+' and ` ' flags only for signed \
621 number.longlong = va_arg (ap, unsigned long long int); \
623 number.longlong = args_value[fspec->data_arg].pa_u_long_long_int; \
625 LABEL (longlong_number): \
627 /* Supply a default precision if none was given. */ \
630 /* We have to take care for the '0' flag. If a precision \
631 is given it must be ignored. */ \
634 /* If the precision is 0 and the number is 0 nothing has to \
635 be written for the number, except for the 'o' format in \
637 if (prec == 0 && number.longlong == 0) \
640 if (base == 8 && alt) \
641 *--string = L_('0'); \
645 /* Put the number in WORK. */ \
646 string = _itoa (number.longlong, workend, base, \
648 if (group && grouping) \
649 string = group_number (string, workend, grouping, \
652 if (use_outdigits && base == 10) \
653 string = _i18n_number_rewrite (string, workend); \
655 /* Simplify further test for num != 0. */ \
656 number.word = number.longlong != 0; \
663 number.word = va_arg (ap, unsigned long int); \
665 number.word = (unsigned char) va_arg (ap, unsigned int); \
666 else if (!is_short) \
667 number.word = va_arg (ap, unsigned int); \
669 number.word = (unsigned short int) va_arg (ap, unsigned int); \
673 number.word = args_value[fspec->data_arg].pa_u_long_int; \
675 number.word = (unsigned char) \
676 args_value[fspec->data_arg].pa_u_int; \
677 else if (!is_short) \
678 number.word = args_value[fspec->data_arg].pa_u_int; \
680 number.word = (unsigned short int) \
681 args_value[fspec->data_arg].pa_u_int; \
685 /* Supply a default precision if none was given. */ \
688 /* We have to take care for the '0' flag. If a precision \
689 is given it must be ignored. */ \
692 /* If the precision is 0 and the number is 0 nothing has to \
693 be written for the number, except for the 'o' format in \
695 if (prec == 0 && number.word == 0) \
698 if (base == 8 && alt) \
699 *--string = L_('0'); \
703 /* Put the number in WORK. */ \
704 string = _itoa_word (number.word, workend, base, \
706 if (group && grouping) \
707 string = group_number (string, workend, grouping, \
710 if (use_outdigits && base == 10) \
711 string = _i18n_number_rewrite (string, workend); \
715 if (prec <= workend - string && number.word != 0 && alt && base == 8) \
716 /* Add octal marker. */ \
717 *--string = L_('0'); \
719 prec = MAX (0, prec - (workend - string)); \
723 width -= workend - string + prec; \
725 if (number.word != 0 && alt && base == 16) \
726 /* Account for 0X hex marker. */ \
729 if (is_negative || showsign || space) \
732 if (pad == L_(' ')) \
745 if (number.word != 0 && alt && base == 16) \
754 outstring (string, workend - string); \
776 if (number.word != 0 && alt && base == 16) \
783 width -= workend - string + prec; \
793 outstring (string, workend - string); \
799 LABEL (form_float): \
801 /* Floating-point number. This is handled by printf_fp.c. */ \
807 struct printf_info info = { .prec = prec, \
810 .is_long_double = is_long_double, \
811 .is_short = is_short, \
812 .is_long = is_long, \
816 .showsign = showsign, \
820 .wide = sizeof (CHAR_T) != 1 }; \
822 if (is_long_double) \
823 the_arg.pa_long_double = va_arg (ap, long double); \
825 the_arg.pa_double = va_arg (ap, double); \
826 ptr = (const void *) &the_arg; \
828 function_done = __printf_fp (s, &info, &ptr); \
832 ptr = (const void *) &args_value[fspec->data_arg]; \
834 function_done = __printf_fp (s, &fspec->info, &ptr); \
837 if (function_done < 0) \
839 /* Error in print handler. */ \
844 done += function_done; \
848 LABEL (form_floathex): \
850 /* Floating point number printed as hexadecimal number. */ \
856 struct printf_info info = { .prec = prec, \
859 .is_long_double = is_long_double, \
860 .is_short = is_short, \
861 .is_long = is_long, \
865 .showsign = showsign, \
869 .wide = sizeof (CHAR_T) != 1 }; \
871 if (is_long_double) \
872 the_arg.pa_long_double = va_arg (ap, long double); \
874 the_arg.pa_double = va_arg (ap, double); \
875 ptr = (const void *) &the_arg; \
877 function_done = __printf_fphex (s, &info, &ptr); \
881 ptr = (const void *) &args_value[fspec->data_arg]; \
883 function_done = __printf_fphex (s, &fspec->info, &ptr); \
886 if (function_done < 0) \
888 /* Error in print handler. */ \
893 done += function_done; \
897 LABEL (form_pointer): \
898 /* Generic pointer. */ \
902 ptr = va_arg (ap, void *); \
904 ptr = args_value[fspec->data_arg].pa_pointer; \
907 /* If the pointer is not NULL, write it as a %#x spec. */ \
909 number.word = (unsigned long int) ptr; \
914 goto LABEL (number); \
918 /* Write "(nil)" for a nil pointer. */ \
919 string = (CHAR_T *) L_("(nil)"); \
920 /* Make sure the full string "(nil)" is printed. */ \
923 is_long = 0; /* This is no wide-char string. */ \
924 goto LABEL (print_string); \
929 LABEL (form_number): \
930 /* Answer the count of characters written. */ \
934 *(long long int *) va_arg (ap, void *) = done; \
935 else if (is_long_num) \
936 *(long int *) va_arg (ap, void *) = done; \
938 *(char *) va_arg (ap, void *) = done; \
939 else if (!is_short) \
940 *(int *) va_arg (ap, void *) = done; \
942 *(short int *) va_arg (ap, void *) = done; \
946 *(long long int *) args_value[fspec->data_arg].pa_pointer = done; \
947 else if (is_long_num) \
948 *(long int *) args_value[fspec->data_arg].pa_pointer = done; \
950 *(char *) args_value[fspec->data_arg].pa_pointer = done; \
951 else if (!is_short) \
952 *(int *) args_value[fspec->data_arg].pa_pointer = done; \
954 *(short int *) args_value[fspec->data_arg].pa_pointer = done; \
957 LABEL (form_strerror): \
958 /* Print description of error ERRNO. */ \
960 (CHAR_T *) __strerror_r (save_errno, (char *) work_buffer, \
961 sizeof work_buffer); \
962 is_long = 0; /* This is no wide-char string. */ \
963 goto LABEL (print_string)
965 #ifdef COMPILE_WPRINTF
966 # define process_string_arg(fspec) \
967 LABEL (form_character): \
970 goto LABEL (form_wcharacter); \
971 --width; /* Account for the character itself. */ \
975 outchar (__btowc ((unsigned char) va_arg (ap, int))); /* Promoted. */ \
977 outchar (__btowc ((unsigned char) \
978 args_value[fspec->data_arg].pa_int)); \
983 LABEL (form_wcharacter): \
985 /* Wide character. */ \
990 outchar (va_arg (ap, wchar_t)); \
992 outchar (args_value[fspec->data_arg].pa_wchar); \
998 LABEL (form_string): \
1001 int string_malloced; \
1003 /* The string argument could in fact be `char *' or `wchar_t *'. \
1004 But this should not make a difference here. */ \
1005 if (fspec == NULL) \
1006 string = (CHAR_T *) va_arg (ap, const wchar_t *); \
1008 string = (CHAR_T *) args_value[fspec->data_arg].pa_wstring; \
1010 /* Entry point for printing other strings. */ \
1011 LABEL (print_string): \
1013 string_malloced = 0; \
1014 if (string == NULL) \
1016 /* Write "(null)" if there's space. */ \
1018 || prec >= (int) (sizeof (null) / sizeof (null[0])) - 1) \
1020 string = (CHAR_T *) null; \
1021 len = (sizeof (null) / sizeof (null[0])) - 1; \
1025 string = (CHAR_T *) L""; \
1029 else if (!is_long && spec != L_('S')) \
1031 /* This is complicated. We have to transform the multibyte \
1032 string into a wide character string. */ \
1033 const char *mbs = (const char *) string; \
1034 mbstate_t mbstate; \
1036 len = prec != -1 ? (size_t) prec : strlen (mbs); \
1038 /* Allocate dynamically an array which definitely is long \
1039 enough for the wide character version. */ \
1040 if (__libc_use_alloca (len * sizeof (wchar_t))) \
1041 string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \
1042 else if ((string = (CHAR_T *) malloc (len * sizeof (wchar_t))) \
1049 string_malloced = 1; \
1051 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1052 len = __mbsrtowcs (string, &mbs, len, &mbstate); \
1053 if (len == (size_t) -1) \
1055 /* Illegal multibyte character. */ \
1063 /* Search for the end of the string, but don't search past \
1064 the length specified by the precision. */ \
1065 len = __wcsnlen (string, prec); \
1067 len = __wcslen (string); \
1070 if ((width -= len) < 0) \
1072 outstring (string, len); \
1078 outstring (string, len); \
1081 if (__builtin_expect (string_malloced, 0)) \
1086 # define process_string_arg(fspec) \
1087 LABEL (form_character): \
1090 goto LABEL (form_wcharacter); \
1091 --width; /* Account for the character itself. */ \
1094 if (fspec == NULL) \
1095 outchar ((unsigned char) va_arg (ap, int)); /* Promoted. */ \
1097 outchar ((unsigned char) args_value[fspec->data_arg].pa_int); \
1102 LABEL (form_wcharacter): \
1104 /* Wide character. */ \
1105 char buf[MB_CUR_MAX]; \
1106 mbstate_t mbstate; \
1109 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1110 len = __wcrtomb (buf, (fspec == NULL ? va_arg (ap, wchar_t) \
1111 : args_value[fspec->data_arg].pa_wchar), \
1113 if (len == (size_t) -1) \
1115 /* Something went wron gduring the conversion. Bail out. */ \
1122 outstring (buf, len); \
1128 LABEL (form_string): \
1131 int string_malloced; \
1133 /* The string argument could in fact be `char *' or `wchar_t *'. \
1134 But this should not make a difference here. */ \
1135 if (fspec == NULL) \
1136 string = (char *) va_arg (ap, const char *); \
1138 string = (char *) args_value[fspec->data_arg].pa_string; \
1140 /* Entry point for printing other strings. */ \
1141 LABEL (print_string): \
1143 string_malloced = 0; \
1144 if (string == NULL) \
1146 /* Write "(null)" if there's space. */ \
1147 if (prec == -1 || prec >= (int) sizeof (null) - 1) \
1149 string = (char *) null; \
1150 len = sizeof (null) - 1; \
1154 string = (char *) ""; \
1158 else if (!is_long && spec != L_('S')) \
1162 /* Search for the end of the string, but don't search past \
1163 the length (in bytes) specified by the precision. Also \
1164 don't use incomplete characters. */ \
1165 if (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MB_CUR_MAX) == 1) \
1166 len = __strnlen (string, prec); \
1169 /* In case we have a multibyte character set the \
1170 situation is more compilcated. We must not copy \
1171 bytes at the end which form an incomplete character. */\
1172 wchar_t ignore[prec]; \
1173 const char *str2 = string; \
1176 memset (&ps, '\0', sizeof (ps)); \
1177 if (__mbsnrtowcs (ignore, &str2, prec, prec, &ps) \
1184 len = strlen (string); \
1186 len = str2 - string - (ps.__count & 7); \
1190 len = strlen (string); \
1194 const wchar_t *s2 = (const wchar_t *) string; \
1195 mbstate_t mbstate; \
1197 memset (&mbstate, '\0', sizeof (mbstate_t)); \
1201 /* The string `s2' might not be NUL terminated. */ \
1202 if (__libc_use_alloca (prec)) \
1203 string = (char *) alloca (prec); \
1204 else if ((string = (char *) malloc (prec)) == NULL) \
1210 string_malloced = 1; \
1211 len = __wcsrtombs (string, &s2, prec, &mbstate); \
1215 len = __wcsrtombs (NULL, &s2, 0, &mbstate); \
1216 if (len != (size_t) -1) \
1218 assert (__mbsinit (&mbstate)); \
1219 s2 = (const wchar_t *) string; \
1220 if (__libc_use_alloca (len + 1)) \
1221 string = (char *) alloca (len + 1); \
1222 else if ((string = (char *) malloc (len + 1)) == NULL) \
1228 string_malloced = 1; \
1229 (void) __wcsrtombs (string, &s2, len + 1, &mbstate); \
1233 if (len == (size_t) -1) \
1235 /* Illegal wide-character string. */ \
1241 if ((width -= len) < 0) \
1243 outstring (string, len); \
1249 outstring (string, len); \
1252 if (__builtin_expect (string_malloced, 0)) \
1258 /* Orient the stream. */
1263 /* Sanity check of arguments. */
1264 ARGCHECK (s
, format
);
1267 /* Check for correct orientation. */
1269 # ifdef USE_IN_LIBIO
1270 s
->_vtable_offset
== 0 &&
1272 _IO_fwide (s
, sizeof (CHAR_T
) == 1 ? -1 : 1)
1273 != (sizeof (CHAR_T
) == 1 ? -1 : 1))
1274 /* The stream is already oriented otherwise. */
1278 if (UNBUFFERED_P (s
))
1279 /* Use a helper function which will allocate a local temporary buffer
1280 for the stream and then call us again. */
1281 return buffered_vfprintf (s
, format
, ap
);
1283 /* Initialize local variables. */
1285 grouping
= (const char *) -1;
1287 /* This macro will be available soon in gcc's <stdarg.h>. We need it
1288 since on some systems `va_list' is not an integral type. */
1289 __va_copy (ap_save
, ap
);
1295 #ifdef COMPILE_WPRINTF
1296 /* Find the first format specifier. */
1297 f
= lead_str_end
= __find_specwc ((const UCHAR_T
*) format
);
1299 /* Put state for processing format string in initial state. */
1300 memset (&mbstate
, '\0', sizeof (mbstate_t));
1302 /* Find the first format specifier. */
1303 f
= lead_str_end
= __find_specmb (format
, &mbstate
);
1308 _IO_cleanup_region_start ((void (*) (void *)) &_IO_funlockfile
, s
);
1311 __libc_cleanup_region_start (1, (void (*) (void *)) &__funlockfile
, s
);
1315 /* Write the literal text before the first format. */
1316 outstring ((const UCHAR_T
*) format
,
1317 lead_str_end
- (const UCHAR_T
*) format
);
1319 /* If we only have to print a simple string, return now. */
1323 /* Process whole format string. */
1326 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined SHARED
1327 # define REF(Name) &&do_##Name - &&do_form_unknown
1329 # define REF(Name) &&do_##Name
1331 #define LABEL(Name) do_##Name
1335 union printf_arg
*args_value
; /* This is not used here but ... */
1336 int is_negative
; /* Flag for negative number. */
1339 unsigned long long int longlong
;
1340 unsigned long int word
;
1343 union printf_arg the_arg
;
1344 CHAR_T
*string
; /* Pointer to argument string. */
1345 int alt
= 0; /* Alternate format. */
1346 int space
= 0; /* Use space prefix if no sign is needed. */
1347 int left
= 0; /* Left-justify output. */
1348 int showsign
= 0; /* Always begin with plus or minus sign. */
1349 int group
= 0; /* Print numbers according grouping rules. */
1350 int is_long_double
= 0; /* Argument is long double/ long long int. */
1351 int is_short
= 0; /* Argument is short int. */
1352 int is_long
= 0; /* Argument is long int. */
1353 int is_char
= 0; /* Argument is promoted (unsigned) char. */
1354 int width
= 0; /* Width of output; 0 means none specified. */
1355 int prec
= -1; /* Precision of output; -1 means none specified. */
1356 /* This flag is set by the 'I' modifier and selects the use of the
1357 `outdigits' as determined by the current locale. */
1358 int use_outdigits
= 0;
1359 UCHAR_T pad
= L_(' ');/* Padding character. */
1363 workend
= &work_buffer
[sizeof (work_buffer
) / sizeof (CHAR_T
)];
1365 /* Get current character in format string. */
1366 JUMP (*++f
, step0_jumps
);
1371 JUMP (*++f
, step0_jumps
);
1376 JUMP (*++f
, step0_jumps
);
1382 JUMP (*++f
, step0_jumps
);
1387 JUMP (*++f
, step0_jumps
);
1393 JUMP (*++f
, step0_jumps
);
1395 /* The '\'' flag. */
1399 if (grouping
== (const char *) -1)
1401 #ifdef COMPILE_WPRINTF
1402 thousands_sep
= _NL_CURRENT_WORD (LC_NUMERIC
,
1403 _NL_NUMERIC_THOUSANDS_SEP_WC
);
1405 thousands_sep
= _NL_CURRENT (LC_NUMERIC
, THOUSANDS_SEP
);
1408 grouping
= _NL_CURRENT (LC_NUMERIC
, GROUPING
);
1409 if (*grouping
== '\0' || *grouping
== CHAR_MAX
1410 #ifdef COMPILE_WPRINTF
1411 || thousands_sep
== L
'\0'
1413 || *thousands_sep
== '\0'
1418 JUMP (*++f
, step0_jumps
);
1422 JUMP (*++f
, step0_jumps
);
1424 /* Get width from argument. */
1425 LABEL (width_asterics
):
1427 const UCHAR_T
*tmp
; /* Temporary value. */
1430 if (ISDIGIT (*tmp
) && read_int (&tmp
) && *tmp
== L_('$'))
1431 /* The width comes from a positional parameter. */
1434 width
= va_arg (ap
, int);
1436 /* Negative width means left justified. */
1444 if (width
+ 32 >= (int) (sizeof (work_buffer
)
1445 / sizeof (work_buffer
[0])))
1447 /* We have to use a special buffer. The "32" is just a safe
1448 bet for all the output which is not counted in the width. */
1449 if (__libc_use_alloca ((width
+ 32) * sizeof (CHAR_T
)))
1450 workend
= ((CHAR_T
*) alloca ((width
+ 32) * sizeof (CHAR_T
))
1454 workstart
= (CHAR_T
*) malloc ((width
+ 32) * sizeof (CHAR_T
));
1455 if (workstart
== NULL
)
1460 workend
= workstart
+ (width
+ 32);
1464 JUMP (*f
, step1_jumps
);
1466 /* Given width in format string. */
1468 width
= read_int (&f
);
1470 if (width
+ 32 >= (int) (sizeof (work_buffer
) / sizeof (work_buffer
[0])))
1472 /* We have to use a special buffer. The "32" is just a safe
1473 bet for all the output which is not counted in the width. */
1474 if (__libc_use_alloca ((width
+ 32) * sizeof (CHAR_T
)))
1475 workend
= ((CHAR_T
*) alloca ((width
+ 32) * sizeof (CHAR_T
))
1479 workstart
= (CHAR_T
*) malloc ((width
+ 32) * sizeof (CHAR_T
));
1480 if (workstart
== NULL
)
1485 workend
= workstart
+ (width
+ 32);
1489 /* Oh, oh. The argument comes from a positional parameter. */
1491 JUMP (*f
, step1_jumps
);
1497 const UCHAR_T
*tmp
; /* Temporary value. */
1500 if (ISDIGIT (*tmp
) && read_int (&tmp
) > 0 && *tmp
== L_('$'))
1501 /* The precision comes from a positional parameter. */
1504 prec
= va_arg (ap
, int);
1506 /* If the precision is negative the precision is omitted. */
1510 else if (ISDIGIT (*f
))
1511 prec
= read_int (&f
);
1515 && prec
+ 32 > (int)(sizeof (work_buffer
) / sizeof (work_buffer
[0])))
1517 if (__libc_use_alloca ((prec
+ 32) * sizeof (CHAR_T
)))
1518 workend
= ((CHAR_T
*) alloca ((prec
+ 32) * sizeof (CHAR_T
)))
1522 workstart
= (CHAR_T
*) malloc ((prec
+ 32) * sizeof (CHAR_T
));
1523 if (workstart
== NULL
)
1528 workend
= workstart
+ (prec
+ 32);
1531 JUMP (*f
, step2_jumps
);
1533 /* Process 'h' modifier. There might another 'h' following. */
1536 JUMP (*++f
, step3a_jumps
);
1538 /* Process 'hh' modifier. */
1539 LABEL (mod_halfhalf
):
1542 JUMP (*++f
, step4_jumps
);
1544 /* Process 'l' modifier. There might another 'l' following. */
1547 JUMP (*++f
, step3b_jumps
);
1549 /* Process 'L', 'q', or 'll' modifier. No other modifier is
1550 allowed to follow. */
1551 LABEL (mod_longlong
):
1554 JUMP (*++f
, step4_jumps
);
1557 is_long_double
= sizeof (size_t) > sizeof (unsigned long int);
1558 is_long
= sizeof (size_t) > sizeof (unsigned int);
1559 JUMP (*++f
, step4_jumps
);
1561 LABEL (mod_ptrdiff_t
):
1562 is_long_double
= sizeof (ptrdiff_t) > sizeof (unsigned long int);
1563 is_long
= sizeof (ptrdiff_t) > sizeof (unsigned int);
1564 JUMP (*++f
, step4_jumps
);
1566 LABEL (mod_intmax_t
):
1567 is_long_double
= sizeof (intmax_t) > sizeof (unsigned long int);
1568 is_long
= sizeof (intmax_t) > sizeof (unsigned int);
1569 JUMP (*++f
, step4_jumps
);
1571 /* Process current format. */
1574 process_arg (((struct printf_spec
*) NULL
));
1575 process_string_arg (((struct printf_spec
*) NULL
));
1577 LABEL (form_unknown
):
1578 if (spec
== L_('\0'))
1580 /* The format string ended before the specifier is complete. */
1585 /* If we are in the fast loop force entering the complicated
1590 /* The format is correctly handled. */
1593 if (__builtin_expect (workstart
!= NULL
, 0))
1597 /* Look for next format specifier. */
1598 #ifdef COMPILE_WPRINTF
1599 f
= __find_specwc ((end_of_spec
= ++f
));
1601 f
= __find_specmb ((end_of_spec
= ++f
), &mbstate
);
1604 /* Write the following constant string. */
1605 outstring (end_of_spec
, f
- end_of_spec
);
1607 while (*f
!= L_('\0'));
1609 /* Unlock stream and return. */
1612 /* Here starts the more complex loop to handle positional parameters. */
1615 /* Array with information about the needed arguments. This has to
1616 be dynamically extensible. */
1618 size_t nspecs_max
= 32; /* A more or less arbitrary start value. */
1619 struct printf_spec
*specs
1620 = alloca (nspecs_max
* sizeof (struct printf_spec
));
1622 /* The number of arguments the format string requests. This will
1623 determine the size of the array needed to store the argument
1627 union printf_arg
*args_value
= NULL
;
1629 /* Positional parameters refer to arguments directly. This could
1630 also determine the maximum number of arguments. Track the
1632 size_t max_ref_arg
= 0;
1634 /* Just a counter. */
1638 if (grouping
== (const char *) -1)
1640 #ifdef COMPILE_WPRINTF
1641 thousands_sep
= _NL_CURRENT_WORD (LC_NUMERIC
,
1642 _NL_NUMERIC_THOUSANDS_SEP_WC
);
1644 thousands_sep
= _NL_CURRENT (LC_NUMERIC
, THOUSANDS_SEP
);
1647 grouping
= _NL_CURRENT (LC_NUMERIC
, GROUPING
);
1648 if (*grouping
== '\0' || *grouping
== CHAR_MAX
)
1652 for (f
= lead_str_end
; *f
!= L_('\0'); f
= specs
[nspecs
++].next_fmt
)
1654 if (nspecs
>= nspecs_max
)
1656 /* Extend the array of format specifiers. */
1657 struct printf_spec
*old
= specs
;
1660 specs
= alloca (nspecs_max
* sizeof (struct printf_spec
));
1662 if (specs
== &old
[nspecs
])
1663 /* Stack grows up, OLD was the last thing allocated;
1665 nspecs_max
+= nspecs_max
/ 2;
1668 /* Copy the old array's elements to the new space. */
1669 memcpy (specs
, old
, nspecs
* sizeof (struct printf_spec
));
1670 if (old
== &specs
[nspecs
])
1671 /* Stack grows down, OLD was just below the new
1672 SPECS. We can use that space when the new space
1674 nspecs_max
+= nspecs_max
/ 2;
1678 /* Parse the format specifier. */
1679 #ifdef COMPILE_WPRINTF
1680 nargs
+= __parse_one_specwc (f
, nargs
, &specs
[nspecs
], &max_ref_arg
);
1682 nargs
+= __parse_one_specmb (f
, nargs
, &specs
[nspecs
], &max_ref_arg
,
1687 /* Determine the number of arguments the format string consumes. */
1688 nargs
= MAX (nargs
, max_ref_arg
);
1690 /* Allocate memory for the argument descriptions. */
1691 args_type
= alloca (nargs
* sizeof (int));
1692 memset (args_type
, 0, nargs
* sizeof (int));
1693 args_value
= alloca (nargs
* sizeof (union printf_arg
));
1695 /* XXX Could do sanity check here: If any element in ARGS_TYPE is
1696 still zero after this loop, format is invalid. For now we
1697 simply use 0 as the value. */
1699 /* Fill in the types of all the arguments. */
1700 for (cnt
= 0; cnt
< nspecs
; ++cnt
)
1702 /* If the width is determined by an argument this is an int. */
1703 if (specs
[cnt
].width_arg
!= -1)
1704 args_type
[specs
[cnt
].width_arg
] = PA_INT
;
1706 /* If the precision is determined by an argument this is an int. */
1707 if (specs
[cnt
].prec_arg
!= -1)
1708 args_type
[specs
[cnt
].prec_arg
] = PA_INT
;
1710 switch (specs
[cnt
].ndata_args
)
1712 case 0: /* No arguments. */
1714 case 1: /* One argument; we already have the type. */
1715 args_type
[specs
[cnt
].data_arg
] = specs
[cnt
].data_arg_type
;
1718 /* We have more than one argument for this format spec.
1719 We must call the arginfo function again to determine
1721 (void) (*__printf_arginfo_table
[specs
[cnt
].info
.spec
])
1723 specs
[cnt
].ndata_args
, &args_type
[specs
[cnt
].data_arg
]);
1728 /* Now we know all the types and the order. Fill in the argument
1730 for (cnt
= 0; cnt
< nargs
; ++cnt
)
1731 switch (args_type
[cnt
])
1733 #define T(tag, mem, type) \
1735 args_value[cnt].mem = va_arg (ap_save, type); \
1738 T (PA_CHAR
, pa_int
, int); /* Promoted. */
1739 T (PA_WCHAR
, pa_wchar
, wint_t);
1740 T (PA_INT
|PA_FLAG_SHORT
, pa_int
, int); /* Promoted. */
1741 T (PA_INT
, pa_int
, int);
1742 T (PA_INT
|PA_FLAG_LONG
, pa_long_int
, long int);
1743 T (PA_INT
|PA_FLAG_LONG_LONG
, pa_long_long_int
, long long int);
1744 T (PA_FLOAT
, pa_double
, double); /* Promoted. */
1745 T (PA_DOUBLE
, pa_double
, double);
1746 T (PA_DOUBLE
|PA_FLAG_LONG_DOUBLE
, pa_long_double
, long double);
1747 T (PA_STRING
, pa_string
, const char *);
1748 T (PA_WSTRING
, pa_wstring
, const wchar_t *);
1749 T (PA_POINTER
, pa_pointer
, void *);
1752 if ((args_type
[cnt
] & PA_FLAG_PTR
) != 0)
1753 args_value
[cnt
].pa_pointer
= va_arg (ap_save
, void *);
1755 args_value
[cnt
].pa_long_double
= 0.0;
1759 /* Now walk through all format specifiers and process them. */
1760 for (; (size_t) nspecs_done
< nspecs
; ++nspecs_done
)
1763 #if defined HAVE_SUBTRACT_LOCAL_LABELS && defined SHARED
1764 # define REF(Name) &&do2_##Name - &&do_form_unknown
1766 # define REF(Name) &&do2_##Name
1769 #define LABEL(Name) do2_##Name
1775 unsigned long long int longlong
;
1776 unsigned long int word
;
1779 union printf_arg the_arg
;
1780 CHAR_T
*string
; /* Pointer to argument string. */
1782 /* Fill variables from values in struct. */
1783 int alt
= specs
[nspecs_done
].info
.alt
;
1784 int space
= specs
[nspecs_done
].info
.space
;
1785 int left
= specs
[nspecs_done
].info
.left
;
1786 int showsign
= specs
[nspecs_done
].info
.showsign
;
1787 int group
= specs
[nspecs_done
].info
.group
;
1788 int is_long_double
= specs
[nspecs_done
].info
.is_long_double
;
1789 int is_short
= specs
[nspecs_done
].info
.is_short
;
1790 int is_char
= specs
[nspecs_done
].info
.is_char
;
1791 int is_long
= specs
[nspecs_done
].info
.is_long
;
1792 int width
= specs
[nspecs_done
].info
.width
;
1793 int prec
= specs
[nspecs_done
].info
.prec
;
1794 int use_outdigits
= specs
[nspecs_done
].info
.i18n
;
1795 char pad
= specs
[nspecs_done
].info
.pad
;
1796 CHAR_T spec
= specs
[nspecs_done
].info
.spec
;
1797 CHAR_T
*workstart
= NULL
;
1799 /* Fill in last information. */
1800 if (specs
[nspecs_done
].width_arg
!= -1)
1802 /* Extract the field width from an argument. */
1803 specs
[nspecs_done
].info
.width
=
1804 args_value
[specs
[nspecs_done
].width_arg
].pa_int
;
1806 if (specs
[nspecs_done
].info
.width
< 0)
1807 /* If the width value is negative left justification is
1808 selected and the value is taken as being positive. */
1810 specs
[nspecs_done
].info
.width
*= -1;
1811 left
= specs
[nspecs_done
].info
.left
= 1;
1813 width
= specs
[nspecs_done
].info
.width
;
1816 if (specs
[nspecs_done
].prec_arg
!= -1)
1818 /* Extract the precision from an argument. */
1819 specs
[nspecs_done
].info
.prec
=
1820 args_value
[specs
[nspecs_done
].prec_arg
].pa_int
;
1822 if (specs
[nspecs_done
].info
.prec
< 0)
1823 /* If the precision is negative the precision is
1825 specs
[nspecs_done
].info
.prec
= -1;
1827 prec
= specs
[nspecs_done
].info
.prec
;
1830 /* Maybe the buffer is too small. */
1831 if (MAX (prec
, width
) + 32 > (int) (sizeof (work_buffer
)
1834 if (__libc_use_alloca ((MAX (prec
, width
) + 32)
1836 workend
= ((CHAR_T
*) alloca ((MAX (prec
, width
) + 32)
1838 + (MAX (prec
, width
) + 32));
1841 workstart
= (CHAR_T
*) malloc ((MAX (prec
, width
) + 32)
1843 workend
= workstart
+ (MAX (prec
, width
) + 32);
1847 /* Process format specifiers. */
1850 JUMP (spec
, step4_jumps
);
1852 process_arg ((&specs
[nspecs_done
]));
1853 process_string_arg ((&specs
[nspecs_done
]));
1855 LABEL (form_unknown
):
1857 extern printf_function
**__printf_function_table
;
1859 printf_function
*function
;
1864 (__printf_function_table
== NULL
? NULL
:
1865 __printf_function_table
[specs
[nspecs_done
].info
.spec
]);
1867 if (function
== NULL
)
1868 function
= &printf_unknown
;
1870 ptr
= alloca (specs
[nspecs_done
].ndata_args
1871 * sizeof (const void *));
1873 /* Fill in an array of pointers to the argument values. */
1874 for (i
= 0; i
< specs
[nspecs_done
].ndata_args
; ++i
)
1875 ptr
[i
] = &args_value
[specs
[nspecs_done
].data_arg
+ i
];
1877 /* Call the function. */
1878 function_done
= (*function
) (s
, &specs
[nspecs_done
].info
, ptr
);
1880 /* If an error occurred we don't have information about #
1882 if (function_done
< 0)
1888 done
+= function_done
;
1893 if (__builtin_expect (workstart
!= NULL
, 0))
1897 /* Write the following constant string. */
1898 outstring (specs
[nspecs_done
].end_of_fmt
,
1899 specs
[nspecs_done
].next_fmt
1900 - specs
[nspecs_done
].end_of_fmt
);
1905 if (__builtin_expect (workstart
!= NULL
, 0))
1907 /* Unlock the stream. */
1909 _IO_funlockfile (s
);
1910 _IO_cleanup_region_end (0);
1913 __libc_cleanup_region_end (0);
1919 /* Handle an unknown format specifier. This prints out a canonicalized
1920 representation of the format spec itself. */
1922 printf_unknown (FILE *s
, const struct printf_info
*info
,
1923 const void *const *args
)
1927 CHAR_T work_buffer
[MAX (info
->width
, info
->spec
) + 32];
1928 CHAR_T
*const workend
1929 = &work_buffer
[sizeof (work_buffer
) / sizeof (CHAR_T
)];
1940 else if (info
->space
)
1944 if (info
->pad
== L_('0'))
1949 if (info
->width
!= 0)
1951 w
= _itoa_word (info
->width
, workend
, 10, 0);
1956 if (info
->prec
!= -1)
1959 w
= _itoa_word (info
->prec
, workend
, 10, 0);
1964 if (info
->spec
!= L_('\0'))
1965 outchar (info
->spec
);
1971 /* Group the digits according to the grouping rules of the current locale.
1972 The interpretation of GROUPING is as in `struct lconv' from <locale.h>. */
1975 group_number (CHAR_T
*w
, CHAR_T
*rear_ptr
, const char *grouping
,
1976 #ifdef COMPILE_WPRINTF
1977 wchar_t thousands_sep
1979 const char *thousands_sep
1985 #ifndef COMPILE_WPRINTF
1986 int tlen
= strlen (thousands_sep
);
1989 /* We treat all negative values like CHAR_MAX. */
1991 if (*grouping
== CHAR_MAX
|| *grouping
<= 0)
1992 /* No grouping should be done. */
1997 /* Copy existing string so that nothing gets overwritten. */
1998 src
= (CHAR_T
*) alloca ((rear_ptr
- w
) * sizeof (CHAR_T
));
1999 s
= (CHAR_T
*) __mempcpy (src
, w
,
2000 (rear_ptr
- w
) * sizeof (CHAR_T
));
2003 /* Process all characters in the string. */
2008 if (--len
== 0 && s
> src
)
2010 /* A new group begins. */
2011 #ifdef COMPILE_WPRINTF
2012 *--w
= thousands_sep
;
2016 *--w
= thousands_sep
[--cnt
];
2021 if (*grouping
== '\0')
2022 /* The previous grouping repeats ad infinitum. */
2024 else if (*grouping
== CHAR_MAX
2030 /* No further grouping to be done.
2031 Copy the rest of the number. */
2043 /* Helper "class" for `fprintf to unbuffered': creates a temporary buffer. */
2046 struct _IO_FILE_plus _f
;
2047 #ifdef COMPILE_WPRINTF
2048 struct _IO_wide_data _wide_data
;
2050 _IO_FILE
*_put_stream
;
2051 #ifdef _IO_MTSAFE_IO
2057 _IO_helper_overflow (_IO_FILE
*s
, int c
)
2059 _IO_FILE
*target
= ((struct helper_file
*) s
)->_put_stream
;
2060 #ifdef COMPILE_WPRINTF
2061 int used
= s
->_wide_data
->_IO_write_ptr
- s
->_wide_data
->_IO_write_base
;
2064 _IO_size_t written
= _IO_sputn (target
, s
->_wide_data
->_IO_write_base
,
2066 s
->_wide_data
->_IO_write_ptr
-= written
;
2069 int used
= s
->_IO_write_ptr
- s
->_IO_write_base
;
2072 _IO_size_t written
= _IO_sputn (target
, s
->_IO_write_base
, used
);
2073 s
->_IO_write_ptr
-= written
;
2079 #ifdef COMPILE_WPRINTF
2080 static const struct _IO_jump_t _IO_helper_jumps
=
2083 JUMP_INIT (finish
, INTUSE(_IO_wdefault_finish
)),
2084 JUMP_INIT (overflow
, _IO_helper_overflow
),
2085 JUMP_INIT (underflow
, _IO_default_underflow
),
2086 JUMP_INIT (uflow
, INTUSE(_IO_default_uflow
)),
2087 JUMP_INIT (pbackfail
, (_IO_pbackfail_t
) INTUSE(_IO_wdefault_pbackfail
)),
2088 JUMP_INIT (xsputn
, INTUSE(_IO_wdefault_xsputn
)),
2089 JUMP_INIT (xsgetn
, INTUSE(_IO_wdefault_xsgetn
)),
2090 JUMP_INIT (seekoff
, _IO_default_seekoff
),
2091 JUMP_INIT (seekpos
, _IO_default_seekpos
),
2092 JUMP_INIT (setbuf
, _IO_default_setbuf
),
2093 JUMP_INIT (sync
, _IO_default_sync
),
2094 JUMP_INIT (doallocate
, INTUSE(_IO_wdefault_doallocate
)),
2095 JUMP_INIT (read
, _IO_default_read
),
2096 JUMP_INIT (write
, _IO_default_write
),
2097 JUMP_INIT (seek
, _IO_default_seek
),
2098 JUMP_INIT (close
, _IO_default_close
),
2099 JUMP_INIT (stat
, _IO_default_stat
)
2102 static const struct _IO_jump_t _IO_helper_jumps
=
2105 JUMP_INIT (finish
, INTUSE(_IO_default_finish
)),
2106 JUMP_INIT (overflow
, _IO_helper_overflow
),
2107 JUMP_INIT (underflow
, _IO_default_underflow
),
2108 JUMP_INIT (uflow
, INTUSE(_IO_default_uflow
)),
2109 JUMP_INIT (pbackfail
, INTUSE(_IO_default_pbackfail
)),
2110 JUMP_INIT (xsputn
, INTUSE(_IO_default_xsputn
)),
2111 JUMP_INIT (xsgetn
, INTUSE(_IO_default_xsgetn
)),
2112 JUMP_INIT (seekoff
, _IO_default_seekoff
),
2113 JUMP_INIT (seekpos
, _IO_default_seekpos
),
2114 JUMP_INIT (setbuf
, _IO_default_setbuf
),
2115 JUMP_INIT (sync
, _IO_default_sync
),
2116 JUMP_INIT (doallocate
, INTUSE(_IO_default_doallocate
)),
2117 JUMP_INIT (read
, _IO_default_read
),
2118 JUMP_INIT (write
, _IO_default_write
),
2119 JUMP_INIT (seek
, _IO_default_seek
),
2120 JUMP_INIT (close
, _IO_default_close
),
2121 JUMP_INIT (stat
, _IO_default_stat
)
2127 buffered_vfprintf (register _IO_FILE
*s
, const CHAR_T
*format
,
2130 CHAR_T buf
[_IO_BUFSIZ
];
2131 struct helper_file helper
;
2132 register _IO_FILE
*hp
= (_IO_FILE
*) &helper
._f
;
2133 int result
, to_flush
;
2135 /* Orient the stream. */
2140 /* Initialize helper. */
2141 helper
._put_stream
= s
;
2142 #ifdef COMPILE_WPRINTF
2143 hp
->_wide_data
= &helper
._wide_data
;
2144 _IO_wsetp (hp
, buf
, buf
+ sizeof buf
/ sizeof (CHAR_T
));
2147 _IO_setp (hp
, buf
, buf
+ sizeof buf
);
2150 hp
->_IO_file_flags
= _IO_MAGIC
|_IO_NO_READS
|_IO_USER_LOCK
;
2151 #if _IO_JUMPS_OFFSET
2152 hp
->_vtable_offset
= 0;
2154 #ifdef _IO_MTSAFE_IO
2157 _IO_JUMPS (&helper
._f
) = (struct _IO_jump_t
*) &_IO_helper_jumps
;
2159 /* Now print to helper instead. */
2160 #if defined USE_IN_LIBIO && !defined COMPILE_WPRINTF
2161 result
= INTUSE(_IO_vfprintf
) (hp
, format
, args
);
2163 result
= vfprintf (hp
, format
, args
);
2167 __libc_cleanup_region_start (1, (void (*) (void *)) &_IO_funlockfile
, s
);
2170 /* Now flush anything from the helper to the S. */
2171 #ifdef COMPILE_WPRINTF
2172 if ((to_flush
= (hp
->_wide_data
->_IO_write_ptr
2173 - hp
->_wide_data
->_IO_write_base
)) > 0)
2175 if ((int) _IO_sputn (s
, hp
->_wide_data
->_IO_write_base
, to_flush
)
2180 if ((to_flush
= hp
->_IO_write_ptr
- hp
->_IO_write_base
) > 0)
2182 if ((int) _IO_sputn (s
, hp
->_IO_write_base
, to_flush
) != to_flush
)
2187 /* Unlock the stream. */
2188 _IO_funlockfile (s
);
2189 __libc_cleanup_region_end (0);
2194 #else /* !USE_IN_LIBIO */
2198 buffered_vfprintf (register FILE *s
, const CHAR_T
*format
, va_list args
)
2203 /* Orient the stream. */
2208 s
->__bufp
= s
->__buffer
= buf
;
2209 s
->__bufsize
= sizeof buf
;
2210 s
->__put_limit
= s
->__buffer
+ s
->__bufsize
;
2211 s
->__get_limit
= s
->__buffer
;
2213 /* Now use buffer to print. */
2214 result
= vfprintf (s
, format
, args
);
2216 if (fflush (s
) == EOF
)
2218 s
->__buffer
= s
->__bufp
= s
->__get_limit
= s
->__put_limit
= NULL
;
2224 /* Pads string with given number of a specified character.
2225 This code is taken from iopadn.c of the GNU I/O library. */
2227 static const CHAR_T blanks
[PADSIZE
] =
2228 { L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '),
2229 L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' '), L_(' ') };
2230 static const CHAR_T zeroes
[PADSIZE
] =
2231 { L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'),
2232 L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0'), L_('0') };
2235 #ifndef COMPILE_WPRINTF
2236 __printf_pad (FILE *s
, char pad
, size_t count
)
2238 __wprintf_pad (FILE *s
, wchar_t pad
, size_t count
)
2241 const CHAR_T
*padptr
;
2244 padptr
= pad
== L_(' ') ? blanks
: zeroes
;
2246 for (i
= count
; i
>= PADSIZE
; i
-= PADSIZE
)
2247 if (PUT (s
, padptr
, PADSIZE
) != PADSIZE
)
2250 if (PUT (s
, padptr
, i
) != i
)
2256 #endif /* USE_IN_LIBIO */
2260 # ifdef strong_alias
2261 /* This is for glibc. */
2262 # ifdef COMPILE_WPRINTF
2263 strong_alias (_IO_vfwprintf
, __vfwprintf
);
2264 weak_alias (_IO_vfwprintf
, vfwprintf
);
2266 strong_alias (_IO_vfprintf
, vfprintf
);
2267 libc_hidden_def (vfprintf
)
2268 INTDEF(_IO_vfprintf
)
2271 # if defined __ELF__ || defined __GNU_LIBRARY__
2272 # include <gnu-stabs.h>
2274 # ifdef COMPILE_WPRINTF
2275 weak_alias (_IO_vfwprintf
, vfwprintf
);
2277 weak_alias (_IO_vfprintf
, vfprintf
);