0,0 → 1,2019 |
/* |
* Copyright (c) 1990 The Regents of the University of California. |
* All rights reserved. |
* |
* This code is derived from software contributed to Berkeley by |
* Chris Torek. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* 1. Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* 4. Neither the name of the University nor the names of its contributors |
* may be used to endorse or promote products derived from this software |
* without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
* SUCH DAMAGE. |
*/ |
|
/* |
FUNCTION |
<<vfwprintf>>, <<vwprintf>>, <<vswprintf>>---wide character format argument list |
|
INDEX |
vfwprintf |
INDEX |
_vfwprintf_r |
INDEX |
vwprintf |
INDEX |
_vwprintf_r |
INDEX |
vswprintf |
INDEX |
_vswprintf_r |
|
ANSI_SYNOPSIS |
#include <stdio.h> |
#include <stdarg.h> |
#include <wchar.h> |
int vwprintf(const wchar_t *__restrict <[fmt]>, va_list <[list]>); |
int vfwprintf(FILE *__restrict <[fp]>, |
const wchar_t *__restrict <[fmt]>, va_list <[list]>); |
int vswprintf(wchar_t * __restrict <[str]>, size_t <[size]>, |
const wchar_t *__ restrict <[fmt]>, va_list <[list]>); |
|
int _vwprintf_r(struct _reent *<[reent]>, const wchar_t *<[fmt]>, |
va_list <[list]>); |
int _vfwprintf_r(struct _reent *<[reent]>, FILE *<[fp]>, |
const wchar_t *<[fmt]>, va_list <[list]>); |
int _vswprintf_r(struct _reent *<[reent]>, wchar_t *<[str]>, |
size_t <[size]>, const wchar_t *<[fmt]>, va_list <[list]>); |
|
DESCRIPTION |
<<vwprintf>>, <<vfwprintf>> and <<vswprintf>> are (respectively) variants |
of <<wprintf>>, <<fwprintf>> and <<swprintf>>. They differ only in allowing |
their caller to pass the variable argument list as a <<va_list>> object |
(initialized by <<va_start>>) rather than directly accepting a variable |
number of arguments. The caller is responsible for calling <<va_end>>. |
|
<<_vwprintf_r>>, <<_vfwprintf_r>> and <<_vswprintf_r>> are reentrant |
versions of the above. |
|
RETURNS |
The return values are consistent with the corresponding functions. |
|
PORTABILITY |
POSIX-1.2008 with extensions; C99 (compliant except for POSIX extensions). |
|
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>, |
<<lseek>>, <<read>>, <<sbrk>>, <<write>>. |
|
SEEALSO |
<<wprintf>>, <<fwprintf>> and <<swprintf>>. |
*/ |
|
/* |
* Actual wprintf innards. |
* |
* This code is large and complicated... |
*/ |
#include <newlib.h> |
|
#ifdef INTEGER_ONLY |
# define VFWPRINTF vfiwprintf |
# ifdef STRING_ONLY |
# define _VFWPRINTF_R _svfiwprintf_r |
# else |
# define _VFWPRINTF_R _vfiwprintf_r |
# endif |
#else |
# define VFWPRINTF vfwprintf |
# ifdef STRING_ONLY |
# define _VFWPRINTF_R _svfwprintf_r |
# else |
# define _VFWPRINTF_R _vfwprintf_r |
# endif |
# ifndef NO_FLOATING_POINT |
# define FLOATING_POINT |
# endif |
#endif |
|
#define _NO_POS_ARGS |
#ifdef _WANT_IO_POS_ARGS |
# undef _NO_POS_ARGS |
#endif |
|
#include <_ansi.h> |
#include <reent.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
#include <limits.h> |
#include <stdint.h> |
#include <wchar.h> |
#include <sys/lock.h> |
#include <stdarg.h> |
#include "local.h" |
#include "fvwrite.h" |
#include "vfieeefp.h" |
#ifdef __HAVE_LOCALE_INFO_EXTENDED__ |
#include "../locale/lnumeric.h" |
#endif |
|
/* Currently a test is made to see if long double processing is warranted. |
This could be changed in the future should the _ldtoa_r code be |
preferred over _dtoa_r. */ |
#define _NO_LONGDBL |
#if defined _WANT_IO_LONG_DOUBLE && (LDBL_MANT_DIG > DBL_MANT_DIG) |
#undef _NO_LONGDBL |
#endif |
|
#define _NO_LONGLONG |
#if defined _WANT_IO_LONG_LONG \ |
&& (defined __GNUC__ || __STDC_VERSION__ >= 199901L) |
# undef _NO_LONGLONG |
#endif |
|
int _EXFUN(_VFWPRINTF_R, (struct _reent *, FILE *, _CONST wchar_t *, va_list)); |
/* Defined in vfprintf.c. */ |
#ifdef _FVWRITE_IN_STREAMIO |
# ifdef STRING_ONLY |
# define __SPRINT __ssprint_r |
# else |
# define __SPRINT __sprint_r |
# endif |
int _EXFUN(__SPRINT, (struct _reent *, FILE *, register struct __suio *)); |
#else |
# ifdef STRING_ONLY |
# define __SPRINT __ssputs_r |
# else |
# define __SPRINT __sfputs_r |
# endif |
int _EXFUN(__SPRINT, (struct _reent *, FILE *, _CONST char *, size_t)); |
#endif |
#ifndef STRING_ONLY |
#ifdef _UNBUF_STREAM_OPT |
/* |
* Helper function for `fprintf to unbuffered unix file': creates a |
* temporary buffer. We only work on write-only files; this avoids |
* worries about ungetc buffers and so forth. |
*/ |
static int |
_DEFUN(__sbwprintf, (rptr, fp, fmt, ap), |
struct _reent *rptr _AND |
register FILE *fp _AND |
_CONST wchar_t *fmt _AND |
va_list ap) |
{ |
int ret; |
FILE fake; |
unsigned char buf[BUFSIZ]; |
|
/* copy the important variables */ |
fake._flags = fp->_flags & ~__SNBF; |
fake._flags2 = fp->_flags2; |
fake._file = fp->_file; |
fake._cookie = fp->_cookie; |
fake._write = fp->_write; |
|
/* set up the buffer */ |
fake._bf._base = fake._p = buf; |
fake._bf._size = fake._w = sizeof (buf); |
fake._lbfsize = 0; /* not actually used, but Just In Case */ |
#ifndef __SINGLE_THREAD__ |
__lock_init_recursive (fake._lock); |
#endif |
|
/* do the work, then copy any error status */ |
ret = _VFWPRINTF_R (rptr, &fake, fmt, ap); |
if (ret >= 0 && _fflush_r (rptr, &fake)) |
ret = EOF; |
if (fake._flags & __SERR) |
fp->_flags |= __SERR; |
|
#ifndef __SINGLE_THREAD__ |
__lock_close_recursive (fake._lock); |
#endif |
return (ret); |
} |
#endif /* _UNBUF_STREAM_OPT */ |
#endif /* !STRING_ONLY */ |
|
|
#if defined (FLOATING_POINT) || defined (_WANT_IO_C99_FORMATS) |
# include <locale.h> |
#endif |
#ifdef FLOATING_POINT |
# include <math.h> |
|
/* For %La, an exponent of 15 bits occupies the exponent character, a |
sign, and up to 5 digits. */ |
# define MAXEXPLEN 7 |
# define DEFPREC 6 |
|
# ifdef _NO_LONGDBL |
|
extern char *_dtoa_r _PARAMS((struct _reent *, double, int, |
int, int *, int *, char **)); |
|
# define _PRINTF_FLOAT_TYPE double |
# define _DTOA_R _dtoa_r |
# define FREXP frexp |
|
# else /* !_NO_LONGDBL */ |
|
extern char *_ldtoa_r _PARAMS((struct _reent *, _LONG_DOUBLE, int, |
int, int *, int *, char **)); |
|
extern int _EXFUN(_ldcheck,(_LONG_DOUBLE *)); |
|
# define _PRINTF_FLOAT_TYPE _LONG_DOUBLE |
# define _DTOA_R _ldtoa_r |
/* FIXME - frexpl is not yet supported; and cvt infloops if (double)f |
converts a finite value into infinity. */ |
/* # define FREXP frexpl */ |
# define FREXP(f,e) ((_LONG_DOUBLE) frexp ((double)f, e)) |
# endif /* !_NO_LONGDBL */ |
|
static wchar_t *wcvt(struct _reent *, _PRINTF_FLOAT_TYPE, int, int, wchar_t *, |
int *, int, int *, wchar_t *, int); |
|
static int wexponent(wchar_t *, int, int); |
|
#endif /* FLOATING_POINT */ |
|
/* BUF must be big enough for the maximum %#llo (assuming long long is |
at most 64 bits, this would be 23 characters), the maximum |
multibyte character %C, and the maximum default precision of %La |
(assuming long double is at most 128 bits with 113 bits of |
mantissa, this would be 29 characters). %e, %f, and %g use |
reentrant storage shared with mprec. All other formats that use |
buf get by with fewer characters. Making BUF slightly bigger |
reduces the need for malloc in %.*a and %ls/%S, when large precision or |
long strings are processed. |
The bigger size of 100 bytes is used on systems which allow number |
strings using the locale's grouping character. Since that's a multibyte |
value, we should use a conservative value. |
*/ |
#ifdef _WANT_IO_C99_FORMATS |
#define BUF 100 |
#else |
#define BUF 40 |
#endif |
#if defined _MB_CAPABLE && MB_LEN_MAX > BUF |
# undef BUF |
# define BUF MB_LEN_MAX |
#endif |
|
#ifndef _NO_LONGLONG |
# define quad_t long long |
# define u_quad_t unsigned long long |
#else |
# define quad_t long |
# define u_quad_t unsigned long |
#endif |
|
typedef quad_t * quad_ptr_t; |
typedef _PTR void_ptr_t; |
typedef char * char_ptr_t; |
typedef wchar_t* wchar_ptr_t; |
typedef long * long_ptr_t; |
typedef int * int_ptr_t; |
typedef short * short_ptr_t; |
|
#ifndef _NO_POS_ARGS |
# ifdef NL_ARGMAX |
# define MAX_POS_ARGS NL_ARGMAX |
# else |
# define MAX_POS_ARGS 32 |
# endif |
|
union arg_val |
{ |
int val_int; |
u_int val_u_int; |
long val_long; |
u_long val_u_long; |
float val_float; |
double val_double; |
_LONG_DOUBLE val__LONG_DOUBLE; |
int_ptr_t val_int_ptr_t; |
short_ptr_t val_short_ptr_t; |
long_ptr_t val_long_ptr_t; |
char_ptr_t val_char_ptr_t; |
wchar_ptr_t val_wchar_ptr_t; |
quad_ptr_t val_quad_ptr_t; |
void_ptr_t val_void_ptr_t; |
quad_t val_quad_t; |
u_quad_t val_u_quad_t; |
wint_t val_wint_t; |
}; |
|
static union arg_val * |
_EXFUN(get_arg, (struct _reent *data, int n, wchar_t *fmt, |
va_list *ap, int *numargs, union arg_val *args, |
int *arg_type, wchar_t **last_fmt)); |
#endif /* !_NO_POS_ARGS */ |
|
/* |
* Macros for converting digits to letters and vice versa |
*/ |
#define to_digit(c) ((c) - L'0') |
#define is_digit(c) ((unsigned)to_digit (c) <= 9) |
#define to_char(n) ((n) + L'0') |
|
/* |
* Flags used during conversion. |
*/ |
#define ALT 0x001 /* alternate form */ |
#define HEXPREFIX 0x002 /* add 0x or 0X prefix */ |
#define LADJUST 0x004 /* left adjustment */ |
#define LONGDBL 0x008 /* long double */ |
#define LONGINT 0x010 /* long integer */ |
#ifndef _NO_LONGLONG |
# define QUADINT 0x020 /* quad integer */ |
#else /* ifdef _NO_LONGLONG, make QUADINT equivalent to LONGINT, so |
that %lld behaves the same as %ld, not as %d, as expected if: |
sizeof (long long) = sizeof long > sizeof int */ |
# define QUADINT LONGINT |
#endif |
#define SHORTINT 0x040 /* short integer */ |
#define ZEROPAD 0x080 /* zero (as opposed to blank) pad */ |
#define FPT 0x100 /* Floating point number */ |
#ifdef _WANT_IO_C99_FORMATS |
# define CHARINT 0x200 /* char as integer */ |
#else /* define as 0, to make SARG and UARG occupy fewer instructions */ |
# define CHARINT 0 |
#endif |
#ifdef _WANT_IO_C99_FORMATS |
# define GROUPING 0x400 /* use grouping ("'" flag) */ |
#endif |
|
#ifndef STRING_ONLY |
int |
_DEFUN(VFWPRINTF, (fp, fmt0, ap), |
FILE *__restrict fp _AND |
_CONST wchar_t *__restrict fmt0 _AND |
va_list ap) |
{ |
int result; |
result = _VFWPRINTF_R (_REENT, fp, fmt0, ap); |
return result; |
} |
#endif /* STRING_ONLY */ |
|
int |
_DEFUN(_VFWPRINTF_R, (data, fp, fmt0, ap), |
struct _reent *data _AND |
FILE * fp _AND |
_CONST wchar_t *fmt0 _AND |
va_list ap) |
{ |
register wchar_t *fmt; /* format string */ |
register wint_t ch; /* character from fmt */ |
register int n, m; /* handy integers (short term usage) */ |
register wchar_t *cp; /* handy char pointer (short term usage) */ |
register int flags; /* flags as above */ |
wchar_t *fmt_anchor; /* current format spec being processed */ |
#ifndef _NO_POS_ARGS |
int N; /* arg number */ |
int arg_index; /* index into args processed directly */ |
int numargs; /* number of varargs read */ |
wchar_t *saved_fmt; /* saved fmt pointer */ |
union arg_val args[MAX_POS_ARGS]; |
int arg_type[MAX_POS_ARGS]; |
int is_pos_arg; /* is current format positional? */ |
int old_is_pos_arg; /* is current format positional? */ |
#endif |
int ret; /* return value accumulator */ |
int width; /* width from format (%8d), or 0 */ |
int prec; /* precision from format (%.3d), or -1 */ |
wchar_t sign; /* sign prefix (' ', '+', '-', or \0) */ |
#ifdef _WANT_IO_C99_FORMATS |
/* locale specific numeric grouping */ |
wchar_t thousands_sep = L'\0'; |
const char *grouping = NULL; |
#endif |
#if defined (_MB_CAPABLE) && !defined (__HAVE_LOCALE_INFO_EXTENDED__) \ |
&& (defined (FLOATING_POINT) || defined (_WANT_IO_C99_FORMATS)) |
mbstate_t state; /* mbtowc calls from library must not change state */ |
#endif |
#ifdef FLOATING_POINT |
wchar_t decimal_point; |
wchar_t softsign; /* temporary negative sign for floats */ |
union { int i; _PRINTF_FLOAT_TYPE fp; } _double_ = {0}; |
# define _fpvalue (_double_.fp) |
int expt; /* integer value of exponent */ |
int expsize = 0; /* character count for expstr */ |
wchar_t expstr[MAXEXPLEN]; /* buffer for exponent string */ |
int lead; /* sig figs before decimal or group sep */ |
#endif /* FLOATING_POINT */ |
#if defined (FLOATING_POINT) || defined (_WANT_IO_C99_FORMATS) |
int ndig = 0; /* actual number of digits returned by cvt */ |
#endif |
#if defined (FLOATING_POINT) && defined (_WANT_IO_C99_FORMATS) |
int nseps; /* number of group separators with ' */ |
int nrepeats; /* number of repeats of the last group */ |
#endif |
u_quad_t _uquad; /* integer arguments %[diouxX] */ |
enum { OCT, DEC, HEX } base;/* base for [diouxX] conversion */ |
int dprec; /* a copy of prec if [diouxX], 0 otherwise */ |
int realsz; /* field size expanded by dprec */ |
int size = 0; /* size of converted field or string */ |
wchar_t *xdigs = NULL; /* digits for [xX] conversion */ |
#ifdef _FVWRITE_IN_STREAMIO |
#define NIOV 8 |
struct __suio uio; /* output information: summary */ |
struct __siov iov[NIOV];/* ... and individual io vectors */ |
register struct __siov *iovp;/* for PRINT macro */ |
#endif |
wchar_t buf[BUF]; /* space for %c, %ls/%S, %[diouxX], %[aA] */ |
wchar_t ox[2]; /* space for 0x hex-prefix */ |
wchar_t *malloc_buf = NULL;/* handy pointer for malloced buffers */ |
|
/* |
* Choose PADSIZE to trade efficiency vs. size. If larger printf |
* fields occur frequently, increase PADSIZE and make the initialisers |
* below longer. |
*/ |
#define PADSIZE 16 /* pad chunk size */ |
static _CONST wchar_t blanks[PADSIZE] = |
{L' ',L' ',L' ',L' ',L' ',L' ',L' ',L' ', |
L' ',L' ',L' ',L' ',L' ',L' ',L' ',L' '}; |
static _CONST wchar_t zeroes[PADSIZE] = |
{L'0',L'0',L'0',L'0',L'0',L'0',L'0',L'0', |
L'0',L'0',L'0',L'0',L'0',L'0',L'0',L'0'}; |
|
#ifdef FLOATING_POINT |
#ifdef _MB_CAPABLE |
#ifdef __HAVE_LOCALE_INFO_EXTENDED__ |
decimal_point = *__get_current_numeric_locale ()->wdecimal_point; |
#else |
{ |
size_t nconv; |
|
memset (&state, '\0', sizeof (state)); |
nconv = _mbrtowc_r (data, &decimal_point, |
_localeconv_r (data)->decimal_point, |
MB_CUR_MAX, &state); |
if (nconv == (size_t) -1 || nconv == (size_t) -2) |
decimal_point = L'.'; |
} |
#endif |
#else |
decimal_point = (wchar_t) *_localeconv_r (data)->decimal_point; |
#endif |
#endif |
/* |
* BEWARE, these `goto error' on error, and PAD uses `n'. |
*/ |
#ifdef _FVWRITE_IN_STREAMIO |
#define PRINT(ptr, len) { \ |
iovp->iov_base = (char *) (ptr); \ |
iovp->iov_len = (len) * sizeof (wchar_t); \ |
uio.uio_resid += (len) * sizeof (wchar_t); \ |
iovp++; \ |
if (++uio.uio_iovcnt >= NIOV) { \ |
if (__SPRINT(data, fp, &uio)) \ |
goto error; \ |
iovp = iov; \ |
} \ |
} |
#define PAD(howmany, with) { \ |
if ((n = (howmany)) > 0) { \ |
while (n > PADSIZE) { \ |
PRINT (with, PADSIZE); \ |
n -= PADSIZE; \ |
} \ |
PRINT (with, n); \ |
} \ |
} |
#define PRINTANDPAD(p, ep, len, with) { \ |
int n = (ep) - (p); \ |
if (n > (len)) \ |
n = (len); \ |
if (n > 0) \ |
PRINT((p), n); \ |
PAD((len) - (n > 0 ? n : 0), (with)); \ |
} |
#define FLUSH() { \ |
if (uio.uio_resid && __SPRINT(data, fp, &uio)) \ |
goto error; \ |
uio.uio_iovcnt = 0; \ |
iovp = iov; \ |
} |
#else |
#define PRINT(ptr, len) { \ |
if (__SPRINT (data, fp, (_CONST char *)(ptr), (len) * sizeof (wchar_t)) == EOF) \ |
goto error; \ |
} |
#define PAD(howmany, with) { \ |
if ((n = (howmany)) > 0) { \ |
while (n > PADSIZE) { \ |
PRINT (with, PADSIZE); \ |
n -= PADSIZE; \ |
} \ |
PRINT (with, n); \ |
} \ |
} |
#define PRINTANDPAD(p, ep, len, with) { \ |
int n = (ep) - (p); \ |
if (n > (len)) \ |
n = (len); \ |
if (n > 0) \ |
PRINT((p), n); \ |
PAD((len) - (n > 0 ? n : 0), (with)); \ |
} |
#define FLUSH() |
#endif |
|
/* Macros to support positional arguments */ |
#ifndef _NO_POS_ARGS |
# define GET_ARG(n, ap, type) \ |
(is_pos_arg \ |
? (n < numargs \ |
? args[n].val_##type \ |
: get_arg (data, n, fmt_anchor, &ap, &numargs, args, \ |
arg_type, &saved_fmt)->val_##type) \ |
: (arg_index++ < numargs \ |
? args[n].val_##type \ |
: (numargs < MAX_POS_ARGS \ |
? args[numargs++].val_##type = va_arg (ap, type) \ |
: va_arg (ap, type)))) |
#else |
# define GET_ARG(n, ap, type) (va_arg (ap, type)) |
#endif |
|
/* |
* To extend shorts properly, we need both signed and unsigned |
* argument extraction methods. |
*/ |
#ifndef _NO_LONGLONG |
#define SARG() \ |
(flags&QUADINT ? GET_ARG (N, ap, quad_t) : \ |
flags&LONGINT ? GET_ARG (N, ap, long) : \ |
flags&SHORTINT ? (long)(short)GET_ARG (N, ap, int) : \ |
flags&CHARINT ? (long)(signed char)GET_ARG (N, ap, int) : \ |
(long)GET_ARG (N, ap, int)) |
#define UARG() \ |
(flags&QUADINT ? GET_ARG (N, ap, u_quad_t) : \ |
flags&LONGINT ? GET_ARG (N, ap, u_long) : \ |
flags&SHORTINT ? (u_long)(u_short)GET_ARG (N, ap, int) : \ |
flags&CHARINT ? (u_long)(unsigned char)GET_ARG (N, ap, int) : \ |
(u_long)GET_ARG (N, ap, u_int)) |
#else |
#define SARG() \ |
(flags&LONGINT ? GET_ARG (N, ap, long) : \ |
flags&SHORTINT ? (long)(short)GET_ARG (N, ap, int) : \ |
flags&CHARINT ? (long)(signed char)GET_ARG (N, ap, int) : \ |
(long)GET_ARG (N, ap, int)) |
#define UARG() \ |
(flags&LONGINT ? GET_ARG (N, ap, u_long) : \ |
flags&SHORTINT ? (u_long)(u_short)GET_ARG (N, ap, int) : \ |
flags&CHARINT ? (u_long)(unsigned char)GET_ARG (N, ap, int) : \ |
(u_long)GET_ARG (N, ap, u_int)) |
#endif |
|
#ifndef STRING_ONLY |
/* Initialize std streams if not dealing with sprintf family. */ |
CHECK_INIT (data, fp); |
_newlib_flockfile_start (fp); |
|
ORIENT(fp, 1); |
|
/* sorry, fwprintf(read_only_file, "") returns EOF, not 0 */ |
if (cantwrite (data, fp)) { |
_newlib_flockfile_exit (fp); |
return (EOF); |
} |
|
#ifdef _UNBUF_STREAM_OPT |
/* optimise fwprintf(stderr) (and other unbuffered Unix files) */ |
if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) && |
fp->_file >= 0) { |
_newlib_flockfile_exit (fp); |
return (__sbwprintf (data, fp, fmt0, ap)); |
} |
#endif |
#else /* STRING_ONLY */ |
/* Create initial buffer if we are called by asprintf family. */ |
if (fp->_flags & __SMBF && !fp->_bf._base) |
{ |
fp->_bf._base = fp->_p = _malloc_r (data, 64); |
if (!fp->_p) |
{ |
data->_errno = ENOMEM; |
return EOF; |
} |
fp->_bf._size = 64; |
} |
#endif /* STRING_ONLY */ |
|
fmt = (wchar_t *)fmt0; |
#ifdef _FVWRITE_IN_STREAMIO |
uio.uio_iov = iovp = iov; |
uio.uio_resid = 0; |
uio.uio_iovcnt = 0; |
#endif |
ret = 0; |
#ifndef _NO_POS_ARGS |
arg_index = 0; |
saved_fmt = NULL; |
arg_type[0] = -1; |
numargs = 0; |
is_pos_arg = 0; |
#endif |
|
/* |
* Scan the format for conversions (`%' character). |
*/ |
for (;;) { |
cp = fmt; |
while (*fmt != L'\0' && *fmt != L'%') |
++fmt; |
if ((m = fmt - cp) != 0) { |
PRINT (cp, m); |
ret += m; |
} |
if (*fmt == L'\0') |
goto done; |
fmt_anchor = fmt; |
fmt++; /* skip over '%' */ |
|
flags = 0; |
dprec = 0; |
width = 0; |
prec = -1; |
sign = L'\0'; |
#ifdef FLOATING_POINT |
lead = 0; |
#ifdef _WANT_IO_C99_FORMATS |
nseps = nrepeats = 0; |
#endif |
#endif |
#ifndef _NO_POS_ARGS |
N = arg_index; |
is_pos_arg = 0; |
#endif |
|
rflag: ch = *fmt++; |
reswitch: switch (ch) { |
#ifdef _WANT_IO_C99_FORMATS |
case L'\'': |
#ifdef _MB_CAPABLE |
#ifdef __HAVE_LOCALE_INFO_EXTENDED__ |
thousands_sep = *__get_current_numeric_locale ()->wthousands_sep; |
#else |
{ |
size_t nconv; |
|
memset (&state, '\0', sizeof (state)); |
nconv = _mbrtowc_r (data, &thousands_sep, |
_localeconv_r (data)->thousands_sep, |
MB_CUR_MAX, &state); |
if (nconv == (size_t) -1 || nconv == (size_t) -2) |
thousands_sep = L'\0'; |
} |
#endif |
#else |
thousands_sep = (wchar_t) *_localeconv_r(data)->thousands_sep; |
#endif |
grouping = _localeconv_r (data)->grouping; |
if (thousands_sep && grouping && *grouping) |
flags |= GROUPING; |
goto rflag; |
#endif |
case L' ': |
/* |
* ``If the space and + flags both appear, the space |
* flag will be ignored.'' |
* -- ANSI X3J11 |
*/ |
if (!sign) |
sign = L' '; |
goto rflag; |
case L'#': |
flags |= ALT; |
goto rflag; |
case L'*': |
#ifndef _NO_POS_ARGS |
/* we must check for positional arg used for dynamic width */ |
n = N; |
old_is_pos_arg = is_pos_arg; |
is_pos_arg = 0; |
if (is_digit (*fmt)) { |
wchar_t *old_fmt = fmt; |
|
n = 0; |
ch = *fmt++; |
do { |
n = 10 * n + to_digit (ch); |
ch = *fmt++; |
} while (is_digit (ch)); |
|
if (ch == L'$') { |
if (n <= MAX_POS_ARGS) { |
n -= 1; |
is_pos_arg = 1; |
} |
else |
goto error; |
} |
else { |
fmt = old_fmt; |
goto rflag; |
} |
} |
#endif /* !_NO_POS_ARGS */ |
|
/* |
* ``A negative field width argument is taken as a |
* - flag followed by a positive field width.'' |
* -- ANSI X3J11 |
* They don't exclude field widths read from args. |
*/ |
width = GET_ARG (n, ap, int); |
#ifndef _NO_POS_ARGS |
is_pos_arg = old_is_pos_arg; |
#endif |
if (width >= 0) |
goto rflag; |
width = -width; |
/* FALLTHROUGH */ |
case L'-': |
flags |= LADJUST; |
goto rflag; |
case L'+': |
sign = L'+'; |
goto rflag; |
case L'.': |
if ((ch = *fmt++) == L'*') { |
#ifndef _NO_POS_ARGS |
/* we must check for positional arg used for dynamic width */ |
n = N; |
old_is_pos_arg = is_pos_arg; |
is_pos_arg = 0; |
if (is_digit (*fmt)) { |
wchar_t *old_fmt = fmt; |
|
n = 0; |
ch = *fmt++; |
do { |
n = 10 * n + to_digit (ch); |
ch = *fmt++; |
} while (is_digit (ch)); |
|
if (ch == L'$') { |
if (n <= MAX_POS_ARGS) { |
n -= 1; |
is_pos_arg = 1; |
} |
else |
goto error; |
} |
else { |
fmt = old_fmt; |
goto rflag; |
} |
} |
#endif /* !_NO_POS_ARGS */ |
prec = GET_ARG (n, ap, int); |
#ifndef _NO_POS_ARGS |
is_pos_arg = old_is_pos_arg; |
#endif |
if (prec < 0) |
prec = -1; |
goto rflag; |
} |
n = 0; |
while (is_digit (ch)) { |
n = 10 * n + to_digit (ch); |
ch = *fmt++; |
} |
prec = n < 0 ? -1 : n; |
goto reswitch; |
case L'0': |
/* |
* ``Note that 0 is taken as a flag, not as the |
* beginning of a field width.'' |
* -- ANSI X3J11 |
*/ |
flags |= ZEROPAD; |
goto rflag; |
case L'1': case L'2': case L'3': case L'4': |
case L'5': case L'6': case L'7': case L'8': case L'9': |
n = 0; |
do { |
n = 10 * n + to_digit (ch); |
ch = *fmt++; |
} while (is_digit (ch)); |
#ifndef _NO_POS_ARGS |
if (ch == L'$') { |
if (n <= MAX_POS_ARGS) { |
N = n - 1; |
is_pos_arg = 1; |
goto rflag; |
} |
else |
goto error; |
} |
#endif /* !_NO_POS_ARGS */ |
width = n; |
goto reswitch; |
#ifdef FLOATING_POINT |
case L'L': |
flags |= LONGDBL; |
goto rflag; |
#endif |
case L'h': |
#ifdef _WANT_IO_C99_FORMATS |
if (*fmt == L'h') { |
fmt++; |
flags |= CHARINT; |
} else |
#endif |
flags |= SHORTINT; |
goto rflag; |
case L'l': |
#if defined _WANT_IO_C99_FORMATS || !defined _NO_LONGLONG |
if (*fmt == L'l') { |
fmt++; |
flags |= QUADINT; |
} else |
#endif |
flags |= LONGINT; |
goto rflag; |
case L'q': /* GNU extension */ |
flags |= QUADINT; |
goto rflag; |
#ifdef _WANT_IO_C99_FORMATS |
case L'j': |
if (sizeof (intmax_t) == sizeof (long)) |
flags |= LONGINT; |
else |
flags |= QUADINT; |
goto rflag; |
case L'z': |
if (sizeof (size_t) < sizeof (int)) |
/* POSIX states size_t is 16 or more bits, as is short. */ |
flags |= SHORTINT; |
else if (sizeof (size_t) == sizeof (int)) |
/* no flag needed */; |
else if (sizeof (size_t) <= sizeof (long)) |
flags |= LONGINT; |
else |
/* POSIX states that at least one programming |
environment must support size_t no wider than |
long, but that means other environments can |
have size_t as wide as long long. */ |
flags |= QUADINT; |
goto rflag; |
case L't': |
if (sizeof (ptrdiff_t) < sizeof (int)) |
/* POSIX states ptrdiff_t is 16 or more bits, as |
is short. */ |
flags |= SHORTINT; |
else if (sizeof (ptrdiff_t) == sizeof (int)) |
/* no flag needed */; |
else if (sizeof (ptrdiff_t) <= sizeof (long)) |
flags |= LONGINT; |
else |
/* POSIX states that at least one programming |
environment must support ptrdiff_t no wider than |
long, but that means other environments can |
have ptrdiff_t as wide as long long. */ |
flags |= QUADINT; |
goto rflag; |
case L'C': /* POSIX extension */ |
#endif /* _WANT_IO_C99_FORMATS */ |
case L'c': |
cp = buf; |
if (ch == L'c' && !(flags & LONGINT)) { |
wint_t wc = btowc ((int) GET_ARG (N, ap, int)); |
if (wc == WEOF) { |
fp->_flags |= __SERR; |
goto error; |
} |
cp[0] = (wchar_t) wc; |
} |
else |
{ |
cp[0] = GET_ARG (N, ap, int); |
} |
cp[1] = L'\0'; |
size = 1; |
sign = L'\0'; |
break; |
case L'd': |
case L'i': |
_uquad = SARG (); |
#ifndef _NO_LONGLONG |
if ((quad_t)_uquad < 0) |
#else |
if ((long) _uquad < 0) |
#endif |
{ |
|
_uquad = -_uquad; |
sign = L'-'; |
} |
base = DEC; |
goto number; |
#ifdef FLOATING_POINT |
# ifdef _WANT_IO_C99_FORMATS |
case L'a': |
case L'A': |
case L'F': |
# endif |
case L'e': |
case L'E': |
case L'f': |
case L'g': |
case L'G': |
# ifdef _NO_LONGDBL |
if (flags & LONGDBL) { |
_fpvalue = (double) GET_ARG (N, ap, _LONG_DOUBLE); |
} else { |
_fpvalue = GET_ARG (N, ap, double); |
} |
|
/* do this before tricky precision changes |
|
If the output is infinite or NaN, leading |
zeros are not permitted. Otherwise, scanf |
could not read what printf wrote. |
*/ |
if (isinf (_fpvalue)) { |
if (_fpvalue < 0) |
sign = '-'; |
if (ch <= L'G') /* 'A', 'E', 'F', or 'G' */ |
cp = L"INF"; |
else |
cp = L"inf"; |
size = 3; |
flags &= ~ZEROPAD; |
break; |
} |
if (isnan (_fpvalue)) { |
if (ch <= L'G') /* 'A', 'E', 'F', or 'G' */ |
cp = L"NAN"; |
else |
cp = L"nan"; |
size = 3; |
flags &= ~ZEROPAD; |
break; |
} |
|
# else /* !_NO_LONGDBL */ |
|
if (flags & LONGDBL) { |
_fpvalue = GET_ARG (N, ap, _LONG_DOUBLE); |
} else { |
_fpvalue = (_LONG_DOUBLE)GET_ARG (N, ap, double); |
} |
|
/* do this before tricky precision changes */ |
expt = _ldcheck (&_fpvalue); |
if (expt == 2) { |
if (_fpvalue < 0) |
sign = L'-'; |
if (ch <= L'G') /* 'A', 'E', 'F', or 'G' */ |
cp = L"INF"; |
else |
cp = L"inf"; |
size = 3; |
flags &= ~ZEROPAD; |
break; |
} |
if (expt == 1) { |
if (ch <= L'G') /* 'A', 'E', 'F', or 'G' */ |
cp = L"NAN"; |
else |
cp = L"nan"; |
size = 3; |
flags &= ~ZEROPAD; |
break; |
} |
# endif /* !_NO_LONGDBL */ |
|
cp = buf; |
# ifdef _WANT_IO_C99_FORMATS |
if (ch == L'a' || ch == L'A') { |
ox[0] = L'0'; |
ox[1] = ch == L'a' ? L'x' : L'X'; |
flags |= HEXPREFIX; |
if (prec >= BUF) |
{ |
if ((malloc_buf = |
(wchar_t *)_malloc_r (data, (prec + 1) * sizeof (wchar_t))) |
== NULL) |
{ |
fp->_flags |= __SERR; |
goto error; |
} |
cp = malloc_buf; |
} |
} else |
# endif /* _WANT_IO_C99_FORMATS */ |
if (prec == -1) { |
prec = DEFPREC; |
} else if ((ch == L'g' || ch == L'G') && prec == 0) { |
prec = 1; |
} |
|
flags |= FPT; |
|
cp = wcvt (data, _fpvalue, prec, flags, &softsign, |
&expt, ch, &ndig, cp, BUF); |
|
/* If buf is not large enough for the converted wchar_t |
sequence, call wcvt again with a malloced new buffer. |
This should happen fairly rarely. |
*/ |
if (cp == buf && ndig > BUF && malloc_buf == NULL) { |
if ((malloc_buf = |
(wchar_t *)_malloc_r (data, ndig * sizeof (wchar_t))) |
== NULL) |
{ |
fp->_flags |= __SERR; |
goto error; |
} |
cp = wcvt (data, _fpvalue, prec, flags, &softsign, |
&expt, ch, &ndig, malloc_buf, ndig); |
} |
|
if (ch == L'g' || ch == L'G') { |
if (expt <= -4 || expt > prec) |
ch -= 2; /* 'e' or 'E' */ |
else |
ch = L'g'; |
} |
# ifdef _WANT_IO_C99_FORMATS |
else if (ch == L'F') |
ch = L'f'; |
# endif |
if (ch <= L'e') { /* 'a', 'A', 'e', or 'E' fmt */ |
--expt; |
expsize = wexponent (expstr, expt, ch); |
size = expsize + ndig; |
if (ndig > 1 || flags & ALT) |
++size; |
# ifdef _WANT_IO_C99_FORMATS |
flags &= ~GROUPING; |
# endif |
} else { |
if (ch == L'f') { /* f fmt */ |
if (expt > 0) { |
size = expt; |
if (prec || flags & ALT) |
size += prec + 1; |
} else /* "0.X" */ |
size = (prec || flags & ALT) |
? prec + 2 |
: 1; |
} else if (expt >= ndig) { /* fixed g fmt */ |
size = expt; |
if (flags & ALT) |
++size; |
} else |
size = ndig + (expt > 0 ? |
1 : 2 - expt); |
# ifdef _WANT_IO_C99_FORMATS |
if ((flags & GROUPING) && expt > 0) { |
/* space for thousands' grouping */ |
nseps = nrepeats = 0; |
lead = expt; |
while (*grouping != CHAR_MAX) { |
if (lead <= *grouping) |
break; |
lead -= *grouping; |
if (grouping[1]) { |
nseps++; |
grouping++; |
} else |
nrepeats++; |
} |
size += nseps + nrepeats; |
} else |
# endif |
lead = expt; |
} |
if (softsign) |
sign = L'-'; |
break; |
#endif /* FLOATING_POINT */ |
#ifdef _GLIBC_EXTENSION |
case L'm': /* GNU extension */ |
{ |
int dummy; |
cp = (wchar_t *) _strerror_r (data, data->_errno, 1, &dummy); |
} |
flags &= ~LONGINT; |
goto string; |
#endif |
case L'n': |
#ifndef _NO_LONGLONG |
if (flags & QUADINT) |
*GET_ARG (N, ap, quad_ptr_t) = ret; |
else |
#endif |
if (flags & LONGINT) |
*GET_ARG (N, ap, long_ptr_t) = ret; |
else if (flags & SHORTINT) |
*GET_ARG (N, ap, short_ptr_t) = ret; |
#ifdef _WANT_IO_C99_FORMATS |
else if (flags & CHARINT) |
*GET_ARG (N, ap, char_ptr_t) = ret; |
#endif |
else |
*GET_ARG (N, ap, int_ptr_t) = ret; |
continue; /* no output */ |
case L'o': |
_uquad = UARG (); |
base = OCT; |
#ifdef _WANT_IO_C99_FORMATS |
flags &= ~GROUPING; |
#endif |
goto nosign; |
case L'p': |
/* |
* ``The argument shall be a pointer to void. The |
* value of the pointer is converted to a sequence |
* of printable characters, in an implementation- |
* defined manner.'' |
* -- ANSI X3J11 |
*/ |
/* NOSTRICT */ |
_uquad = (uintptr_t) GET_ARG (N, ap, void_ptr_t); |
base = HEX; |
xdigs = L"0123456789abcdef"; |
flags |= HEXPREFIX; |
ox[0] = L'0'; |
ox[1] = ch = L'x'; |
goto nosign; |
case L's': |
#ifdef _WANT_IO_C99_FORMATS |
case L'S': /* POSIX extension */ |
#endif |
cp = GET_ARG (N, ap, wchar_ptr_t); |
#ifdef _GLIBC_EXTENSION |
string: |
#endif |
sign = '\0'; |
#ifndef __OPTIMIZE_SIZE__ |
/* Behavior is undefined if the user passed a |
NULL string when precision is not 0. |
However, if we are not optimizing for size, |
we might as well mirror glibc behavior. */ |
if (cp == NULL) { |
cp = L"(null)"; |
size = ((unsigned) prec > 6U) ? 6 : prec; |
} |
else |
#endif /* __OPTIMIZE_SIZE__ */ |
#ifdef _MB_CAPABLE |
if (ch != L'S' && !(flags & LONGINT)) { |
char *arg = (char *) cp; |
size_t insize = 0, nchars = 0, nconv = 0; |
mbstate_t ps; |
wchar_t *p; |
|
if (prec >= 0) { |
char *p = arg; |
memset ((_PTR)&ps, '\0', sizeof (mbstate_t)); |
while (nchars < (size_t)prec) { |
nconv = mbrlen (p, MB_CUR_MAX, &ps); |
if (nconv == 0 || nconv == (size_t)-1 || |
nconv == (size_t)-2) |
break; |
p += nconv; |
++nchars; |
insize += nconv; |
} |
if (nconv == (size_t) -1 || nconv == (size_t) -2) { |
fp->_flags |= __SERR; |
goto error; |
} |
} else |
insize = strlen(arg); |
if (insize >= BUF) { |
if ((malloc_buf = (wchar_t *) _malloc_r (data, (insize + 1) * sizeof (wchar_t))) |
== NULL) { |
fp->_flags |= __SERR; |
goto error; |
} |
cp = malloc_buf; |
} else |
cp = buf; |
memset ((_PTR)&ps, '\0', sizeof (mbstate_t)); |
p = cp; |
while (insize != 0) { |
nconv = _mbrtowc_r (data, p, arg, insize, &ps); |
if (nconv == 0 || nconv == (size_t)-1 || nconv == (size_t)-2) |
break; |
++p; |
arg += nconv; |
insize -= nconv; |
} |
if (nconv == (size_t) -1 || nconv == (size_t) -2) { |
fp->_flags |= __SERR; |
goto error; |
} |
*p = L'\0'; |
size = p - cp; |
} |
#else |
if (ch != L'S' && !(flags & LONGINT)) { |
char *arg = (char *) cp; |
size_t insize = 0; |
|
if (prec >= 0) { |
char *p = memchr (arg, '\0', prec); |
insize = p ? p - arg : prec; |
} else |
insize = strlen (arg); |
if (insize >= BUF) { |
if ((malloc_buf = (wchar_t *) _malloc_r (data, (insize + 1) * sizeof (wchar_t))) |
== NULL) { |
fp->_flags |= __SERR; |
goto error; |
} |
cp = malloc_buf; |
} else |
cp = buf; |
for (size = 0; size < insize; ++size) |
cp[size] = arg[size]; |
cp[size] = L'\0'; |
} |
#endif /* _MB_CAPABLE */ |
else if (prec >= 0) { |
/* |
* can't use wcslen; can only look for the |
* NUL in the first `prec' characters, and |
* strlen () will go further. |
*/ |
wchar_t *p = wmemchr (cp, L'\0', prec); |
|
if (p != NULL) { |
size = p - cp; |
if (size > prec) |
size = prec; |
} else |
size = prec; |
} else |
size = wcslen (cp); |
|
break; |
case L'u': |
_uquad = UARG (); |
base = DEC; |
goto nosign; |
case L'X': |
xdigs = L"0123456789ABCDEF"; |
goto hex; |
case L'x': |
xdigs = L"0123456789abcdef"; |
hex: _uquad = UARG (); |
base = HEX; |
/* leading 0x/X only if non-zero */ |
if (flags & ALT && _uquad != 0) { |
ox[0] = L'0'; |
ox[1] = ch; |
flags |= HEXPREFIX; |
} |
|
#ifdef _WANT_IO_C99_FORMATS |
flags &= ~GROUPING; |
#endif |
/* unsigned conversions */ |
nosign: sign = L'\0'; |
/* |
* ``... diouXx conversions ... if a precision is |
* specified, the 0 flag will be ignored.'' |
* -- ANSI X3J11 |
*/ |
number: if ((dprec = prec) >= 0) |
flags &= ~ZEROPAD; |
|
/* |
* ``The result of converting a zero value with an |
* explicit precision of zero is no characters.'' |
* -- ANSI X3J11 |
*/ |
cp = buf + BUF; |
if (_uquad != 0 || prec != 0) { |
/* |
* Unsigned mod is hard, and unsigned mod |
* by a constant is easier than that by |
* a variable; hence this switch. |
*/ |
switch (base) { |
case OCT: |
do { |
*--cp = to_char (_uquad & 7); |
_uquad >>= 3; |
} while (_uquad); |
/* handle octal leading 0 */ |
if (flags & ALT && *cp != L'0') |
*--cp = L'0'; |
break; |
|
case DEC: |
/* many numbers are 1 digit */ |
if (_uquad < 10) { |
*--cp = to_char(_uquad); |
break; |
} |
#ifdef _WANT_IO_C99_FORMATS |
ndig = 0; |
#endif |
do { |
*--cp = to_char (_uquad % 10); |
#ifdef _WANT_IO_C99_FORMATS |
ndig++; |
/* If (*grouping == CHAR_MAX) then no |
more grouping */ |
if ((flags & GROUPING) |
&& ndig == *grouping |
&& *grouping != CHAR_MAX |
&& _uquad > 9) { |
*--cp = thousands_sep; |
ndig = 0; |
/* If (grouping[1] == '\0') then we |
have to use *grouping character |
(last grouping rule) for all |
next cases. */ |
if (grouping[1] != '\0') |
grouping++; |
} |
#endif |
_uquad /= 10; |
} while (_uquad != 0); |
break; |
|
case HEX: |
do { |
*--cp = xdigs[_uquad & 15]; |
_uquad >>= 4; |
} while (_uquad); |
break; |
|
default: |
cp = L"bug in vfprintf: bad base"; |
size = wcslen (cp); |
goto skipsize; |
} |
} |
/* |
* ...result is to be converted to an 'alternate form'. |
* For o conversion, it increases the precision to force |
* the first digit of the result to be a zero." |
* -- ANSI X3J11 |
* |
* To demonstrate this case, compile and run: |
* printf ("%#.0o",0); |
*/ |
else if (base == OCT && (flags & ALT)) |
*--cp = L'0'; |
|
size = buf + BUF - cp; |
skipsize: |
break; |
default: /* "%?" prints ?, unless ? is NUL */ |
if (ch == L'\0') |
goto done; |
/* pretend it was %c with argument ch */ |
cp = buf; |
*cp = ch; |
size = 1; |
sign = L'\0'; |
break; |
} |
|
/* |
* All reasonable formats wind up here. At this point, `cp' |
* points to a string which (if not flags&LADJUST) should be |
* padded out to `width' places. If flags&ZEROPAD, it should |
* first be prefixed by any sign or other prefix; otherwise, |
* it should be blank padded before the prefix is emitted. |
* After any left-hand padding and prefixing, emit zeroes |
* required by a decimal [diouxX] precision, then print the |
* string proper, then emit zeroes required by any leftover |
* floating precision; finally, if LADJUST, pad with blanks. |
* If flags&FPT, ch must be in [aAeEfg]. |
* |
* Compute actual size, so we know how much to pad. |
* size excludes decimal prec; realsz includes it. |
*/ |
realsz = dprec > size ? dprec : size; |
if (sign) |
realsz++; |
if (flags & HEXPREFIX) |
realsz+= 2; |
|
/* right-adjusting blank padding */ |
if ((flags & (LADJUST|ZEROPAD)) == 0) |
PAD (width - realsz, blanks); |
|
/* prefix */ |
if (sign) |
PRINT (&sign, 1); |
if (flags & HEXPREFIX) |
PRINT (ox, 2); |
|
/* right-adjusting zero padding */ |
if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) |
PAD (width - realsz, zeroes); |
|
/* leading zeroes from decimal precision */ |
PAD (dprec - size, zeroes); |
|
/* the string or number proper */ |
#ifdef FLOATING_POINT |
if ((flags & FPT) == 0) { |
PRINT (cp, size); |
} else { /* glue together f_p fragments */ |
if (ch >= L'f') { /* 'f' or 'g' */ |
if (_fpvalue == 0) { |
/* kludge for __dtoa irregularity */ |
PRINT (L"0", 1); |
if (expt < ndig || flags & ALT) { |
PRINT (&decimal_point, 1); |
PAD (ndig - 1, zeroes); |
} |
} else if (expt <= 0) { |
PRINT (L"0", 1); |
if (expt || ndig || flags & ALT) { |
PRINT (&decimal_point, 1); |
PAD (-expt, zeroes); |
PRINT (cp, ndig); |
} |
} else { |
wchar_t *convbuf = cp; |
PRINTANDPAD(cp, convbuf + ndig, |
lead, zeroes); |
cp += lead; |
#ifdef _WANT_IO_C99_FORMATS |
if (flags & GROUPING) { |
while (nseps > 0 || nrepeats > 0) { |
if (nrepeats > 0) |
nrepeats--; |
else { |
grouping--; |
nseps--; |
} |
PRINT (&thousands_sep, 1); |
PRINTANDPAD (cp, convbuf + ndig, |
*grouping, zeroes); |
cp += *grouping; |
} |
if (cp > convbuf + ndig) |
cp = convbuf + ndig; |
} |
#endif |
if (expt < ndig || flags & ALT) |
PRINT (&decimal_point, 1); |
PRINTANDPAD (cp, convbuf + ndig, |
ndig - expt, zeroes); |
} |
|
} else { /* 'a', 'A', 'e', or 'E' */ |
if (ndig > 1 || flags & ALT) { |
PRINT (cp, 1); |
cp++; |
PRINT (&decimal_point, 1); |
if (_fpvalue) { |
PRINT (cp, ndig - 1); |
} else /* 0.[0..] */ |
/* __dtoa irregularity */ |
PAD (ndig - 1, zeroes); |
} else /* XeYYY */ |
PRINT (cp, 1); |
PRINT (expstr, expsize); |
} |
} |
#else /* !FLOATING_POINT */ |
PRINT (cp, size); |
#endif |
/* left-adjusting padding (always blank) */ |
if (flags & LADJUST) |
PAD (width - realsz, blanks); |
|
/* finally, adjust ret */ |
ret += width > realsz ? width : realsz; |
|
FLUSH (); /* copy out the I/O vectors */ |
|
if (malloc_buf != NULL) { |
_free_r (data, malloc_buf); |
malloc_buf = NULL; |
} |
} |
done: |
FLUSH (); |
error: |
if (malloc_buf != NULL) |
_free_r (data, malloc_buf); |
#ifndef STRING_ONLY |
_newlib_flockfile_end (fp); |
#endif |
return (__sferror (fp) ? EOF : ret); |
/* NOTREACHED */ |
} |
|
#ifdef FLOATING_POINT |
|
/* Using reentrant DATA, convert finite VALUE into a string of digits |
with no decimal point, using NDIGITS precision and FLAGS as guides |
to whether trailing zeros must be included. Set *SIGN to nonzero |
if VALUE was negative. Set *DECPT to the exponent plus one. Set |
*LENGTH to the length of the returned string. CH must be one of |
[aAeEfFgG]; different from vfprintf.c:cvt(), the return string |
lives in BUF regardless of CH. LEN is the length of BUF, except |
when CH is [aA], in which case LEN is not in use. If BUF is not |
large enough for the converted string, only the first LEN number |
of characters will be returned in BUF, but *LENGTH will be set to |
the full length of the string before the truncation. */ |
static wchar_t * |
wcvt(struct _reent *data, _PRINTF_FLOAT_TYPE value, int ndigits, int flags, |
wchar_t *sign, int *decpt, int ch, int *length, wchar_t *buf, int len) |
{ |
int mode, dsgn; |
# ifdef _NO_LONGDBL |
union double_union tmp; |
|
tmp.d = value; |
if (word0 (tmp) & Sign_bit) { /* this will check for < 0 and -0.0 */ |
value = -value; |
*sign = L'-'; |
} else |
*sign = L'\0'; |
# else /* !_NO_LONGDBL */ |
union |
{ |
struct ldieee ieee; |
_LONG_DOUBLE val; |
} ld; |
|
ld.val = value; |
if (ld.ieee.sign) { /* this will check for < 0 and -0.0 */ |
value = -value; |
*sign = L'-'; |
} else |
*sign = L'\0'; |
# endif /* !_NO_LONGDBL */ |
|
# ifdef _WANT_IO_C99_FORMATS |
if (ch == L'a' || ch == L'A') { |
wchar_t *digits, *bp, *rve; |
/* This code assumes FLT_RADIX is a power of 2. The initial |
division ensures the digit before the decimal will be less |
than FLT_RADIX (unless it is rounded later). There is no |
loss of precision in these calculations. */ |
value = FREXP (value, decpt) / 8; |
if (!value) |
*decpt = 1; |
digits = ch == L'a' ? L"0123456789abcdef" : L"0123456789ABCDEF"; |
bp = buf; |
do { |
value *= 16; |
mode = (int) value; |
value -= mode; |
*bp++ = digits[mode]; |
} while (ndigits-- && value); |
if (value > 0.5 || (value == 0.5 && mode & 1)) { |
/* round to even */ |
rve = bp; |
while (*--rve == digits[0xf]) { |
*rve = L'0'; |
} |
*rve = *rve == L'9' ? digits[0xa] : *rve + 1; |
} else { |
while (ndigits-- >= 0) { |
*bp++ = L'0'; |
} |
} |
*length = bp - buf; |
return buf; |
} |
# endif /* _WANT_IO_C99_FORMATS */ |
if (ch == L'f' || ch == L'F') { |
mode = 3; /* ndigits after the decimal point */ |
} else { |
/* To obtain ndigits after the decimal point for the 'e' |
* and 'E' formats, round to ndigits + 1 significant |
* figures. |
*/ |
if (ch == L'e' || ch == L'E') { |
ndigits++; |
} |
mode = 2; /* ndigits significant digits */ |
} |
|
{ |
char *digits, *bp, *rve; |
#ifndef _MB_CAPABLE |
int i; |
#endif |
|
digits = _DTOA_R (data, value, mode, ndigits, decpt, &dsgn, &rve); |
|
if ((ch != L'g' && ch != L'G') || flags & ALT) { /* Print trailing zeros */ |
bp = digits + ndigits; |
if (ch == L'f' || ch == L'F') { |
if (*digits == L'0' && value) |
*decpt = -ndigits + 1; |
bp += *decpt; |
} |
if (value == 0) /* kludge for __dtoa irregularity */ |
rve = bp; |
while (rve < bp) |
*rve++ = '0'; |
} |
|
*length = rve - digits; /* full length of the string */ |
#ifdef _MB_CAPABLE |
_mbsnrtowcs_r (data, buf, (const char **) &digits, *length, |
len, NULL); |
#else |
for (i = 0; i < *length && i < len; ++i) |
buf[i] = (wchar_t) digits[i]; |
#endif |
return buf; |
} |
} |
|
static int |
wexponent(wchar_t *p0, int exp, int fmtch) |
{ |
register wchar_t *p, *t; |
wchar_t expbuf[MAXEXPLEN]; |
# ifdef _WANT_IO_C99_FORMATS |
int isa = fmtch == L'a' || fmtch == L'A'; |
# else |
# define isa 0 |
# endif |
|
p = p0; |
*p++ = isa ? L'p' - L'a' + fmtch : fmtch; |
if (exp < 0) { |
exp = -exp; |
*p++ = L'-'; |
} |
else |
*p++ = L'+'; |
t = expbuf + MAXEXPLEN; |
if (exp > 9) { |
do { |
*--t = to_char (exp % 10); |
} while ((exp /= 10) > 9); |
*--t = to_char (exp); |
for (; t < expbuf + MAXEXPLEN; *p++ = *t++); |
} |
else { |
if (!isa) |
*p++ = L'0'; |
*p++ = to_char (exp); |
} |
return (p - p0); |
} |
#endif /* FLOATING_POINT */ |
|
|
#ifndef _NO_POS_ARGS |
|
/* Positional argument support. |
Written by Jeff Johnston |
|
Copyright (c) 2002 Red Hat Incorporated. |
All rights reserved. |
|
Redistribution and use in source and binary forms, with or without |
modification, are permitted provided that the following conditions are met: |
|
Redistributions of source code must retain the above copyright |
notice, this list of conditions and the following disclaimer. |
|
Redistributions in binary form must reproduce the above copyright |
notice, this list of conditions and the following disclaimer in the |
documentation and/or other materials provided with the distribution. |
|
The name of Red Hat Incorporated may not be used to endorse |
or promote products derived from this software without specific |
prior written permission. |
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY |
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
|
/* function to get positional parameter N where n = N - 1 */ |
static union arg_val * |
_DEFUN(get_arg, (data, n, fmt, ap, numargs_p, args, arg_type, last_fmt), |
struct _reent *data _AND |
int n _AND |
wchar_t *fmt _AND |
va_list *ap _AND |
int *numargs_p _AND |
union arg_val *args _AND |
int *arg_type _AND |
wchar_t **last_fmt) |
{ |
wchar_t ch; |
int number, flags; |
int spec_type; |
int numargs = *numargs_p; |
__CH_CLASS chtype; |
__STATE state, next_state; |
__ACTION action; |
int pos, last_arg; |
int max_pos_arg = n; |
/* Only need types that can be reached via vararg promotions. */ |
enum types { INT, LONG_INT, QUAD_INT, CHAR_PTR, DOUBLE, LONG_DOUBLE, WIDE_CHAR }; |
|
/* if this isn't the first call, pick up where we left off last time */ |
if (*last_fmt != NULL) |
fmt = *last_fmt; |
|
/* we need to process either to end of fmt string or until we have actually |
read the desired parameter from the vararg list. */ |
while (*fmt && n >= numargs) |
{ |
while (*fmt != L'\0' && *fmt != L'%') |
fmt += 1; |
|
if (*fmt == L'\0') |
break; |
state = START; |
flags = 0; |
pos = -1; |
number = 0; |
spec_type = INT; |
|
/* Use state/action table to process format specifiers. We ignore invalid |
formats and we are only interested in information that tells us how to |
read the vararg list. */ |
while (state != DONE) |
{ |
ch = *fmt++; |
chtype = ch < (wchar_t) 256 ? __chclass[ch] : OTHER; |
next_state = __state_table[state][chtype]; |
action = __action_table[state][chtype]; |
state = next_state; |
|
switch (action) |
{ |
case GETMOD: /* we have format modifier */ |
switch (ch) |
{ |
case L'h': |
/* No flag needed, since short and char promote to int. */ |
break; |
case L'L': |
flags |= LONGDBL; |
break; |
case L'q': |
flags |= QUADINT; |
break; |
# ifdef _WANT_IO_C99_FORMATS |
case L'j': |
if (sizeof (intmax_t) == sizeof (long)) |
flags |= LONGINT; |
else |
flags |= QUADINT; |
break; |
case L'z': |
if (sizeof (size_t) <= sizeof (int)) |
/* no flag needed */; |
else if (sizeof (size_t) <= sizeof (long)) |
flags |= LONGINT; |
else |
/* POSIX states that at least one programming |
environment must support size_t no wider than |
long, but that means other environments can |
have size_t as wide as long long. */ |
flags |= QUADINT; |
break; |
case L't': |
if (sizeof (ptrdiff_t) <= sizeof (int)) |
/* no flag needed */; |
else if (sizeof (ptrdiff_t) <= sizeof (long)) |
flags |= LONGINT; |
else |
/* POSIX states that at least one programming |
environment must support ptrdiff_t no wider than |
long, but that means other environments can |
have ptrdiff_t as wide as long long. */ |
flags |= QUADINT; |
break; |
# endif /* _WANT_IO_C99_FORMATS */ |
case L'l': |
default: |
# if defined _WANT_IO_C99_FORMATS || !defined _NO_LONGLONG |
if (*fmt == L'l') |
{ |
flags |= QUADINT; |
++fmt; |
} |
else |
# endif |
flags |= LONGINT; |
break; |
} |
break; |
case GETARG: /* we have format specifier */ |
{ |
numargs &= (MAX_POS_ARGS - 1); |
/* process the specifier and translate it to a type to fetch from varargs */ |
switch (ch) |
{ |
case L'd': |
case L'i': |
case L'o': |
case L'x': |
case L'X': |
case L'u': |
if (flags & LONGINT) |
spec_type = LONG_INT; |
# ifndef _NO_LONGLONG |
else if (flags & QUADINT) |
spec_type = QUAD_INT; |
# endif |
else |
spec_type = INT; |
break; |
# ifdef _WANT_IO_C99_FORMATS |
case L'a': |
case L'A': |
case L'F': |
# endif |
case L'f': |
case L'g': |
case L'G': |
case L'E': |
case L'e': |
# ifndef _NO_LONGDBL |
if (flags & LONGDBL) |
spec_type = LONG_DOUBLE; |
else |
# endif |
spec_type = DOUBLE; |
break; |
case L's': |
# ifdef _WANT_IO_C99_FORMATS |
case L'S': /* POSIX extension */ |
# endif |
case L'p': |
case L'n': |
spec_type = CHAR_PTR; |
break; |
case L'c': |
# ifdef _WANT_IO_C99_FORMATS |
if (flags & LONGINT) |
spec_type = WIDE_CHAR; |
else |
# endif |
spec_type = INT; |
break; |
# ifdef _WANT_IO_C99_FORMATS |
case L'C': /* POSIX extension */ |
spec_type = WIDE_CHAR; |
break; |
# endif |
} |
|
/* if we have a positional parameter, just store the type, otherwise |
fetch the parameter from the vararg list */ |
if (pos != -1) |
arg_type[pos] = spec_type; |
else |
{ |
switch (spec_type) |
{ |
case LONG_INT: |
args[numargs++].val_long = va_arg (*ap, long); |
break; |
case QUAD_INT: |
args[numargs++].val_quad_t = va_arg (*ap, quad_t); |
break; |
case WIDE_CHAR: |
args[numargs++].val_wint_t = va_arg (*ap, wint_t); |
break; |
case INT: |
args[numargs++].val_int = va_arg (*ap, int); |
break; |
case CHAR_PTR: |
args[numargs++].val_wchar_ptr_t = va_arg (*ap, wchar_t *); |
break; |
case DOUBLE: |
args[numargs++].val_double = va_arg (*ap, double); |
break; |
case LONG_DOUBLE: |
args[numargs++].val__LONG_DOUBLE = va_arg (*ap, _LONG_DOUBLE); |
break; |
} |
} |
} |
break; |
case GETPOS: /* we have positional specifier */ |
if (arg_type[0] == -1) |
memset (arg_type, 0, sizeof (int) * MAX_POS_ARGS); |
pos = number - 1; |
max_pos_arg = (max_pos_arg > pos ? max_pos_arg : pos); |
break; |
case PWPOS: /* we have positional specifier for width or precision */ |
if (arg_type[0] == -1) |
memset (arg_type, 0, sizeof (int) * MAX_POS_ARGS); |
number -= 1; |
arg_type[number] = INT; |
max_pos_arg = (max_pos_arg > number ? max_pos_arg : number); |
break; |
case GETPWB: /* we require format pushback */ |
--fmt; |
/* fallthrough */ |
case GETPW: /* we have a variable precision or width to acquire */ |
args[numargs++].val_int = va_arg (*ap, int); |
break; |
case NUMBER: /* we have a number to process */ |
number = (ch - '0'); |
while ((ch = *fmt) != '\0' && is_digit (ch)) |
{ |
number = number * 10 + (ch - '0'); |
++fmt; |
} |
break; |
case SKIPNUM: /* we have a number to skip */ |
while ((ch = *fmt) != '\0' && is_digit (ch)) |
++fmt; |
break; |
case NOOP: |
default: |
break; /* do nothing */ |
} |
} |
} |
|
/* process all arguments up to at least the one we are looking for and if we |
have seen the end of the string, then process up to the max argument needed */ |
if (*fmt == '\0') |
last_arg = max_pos_arg; |
else |
last_arg = n; |
|
while (numargs <= last_arg) |
{ |
switch (arg_type[numargs]) |
{ |
case LONG_INT: |
args[numargs++].val_long = va_arg (*ap, long); |
break; |
case QUAD_INT: |
args[numargs++].val_quad_t = va_arg (*ap, quad_t); |
break; |
case CHAR_PTR: |
args[numargs++].val_wchar_ptr_t = va_arg (*ap, wchar_t *); |
break; |
case DOUBLE: |
args[numargs++].val_double = va_arg (*ap, double); |
break; |
case LONG_DOUBLE: |
args[numargs++].val__LONG_DOUBLE = va_arg (*ap, _LONG_DOUBLE); |
break; |
case WIDE_CHAR: |
args[numargs++].val_wint_t = va_arg (*ap, wint_t); |
break; |
case INT: |
default: |
args[numargs++].val_int = va_arg (*ap, int); |
break; |
} |
} |
|
/* alter the global numargs value and keep a reference to the last bit of the fmt |
string we processed here because the caller will continue processing where we started */ |
*numargs_p = numargs; |
*last_fmt = fmt; |
return &args[n]; |
} |
#endif /* !_NO_POS_ARGS */ |