-/* Copyright (C) 1991-2001, 2003-2007, 2009-2010 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2001, 2003-2007, 2009-2013 Free Software Foundation, Inc.
NOTE: The canonical source of this file is maintained with the GNU C Library.
Bugs can be reported to bug-glibc@prep.ai.mit.edu.
#else
# include <config.h>
# if FPRINTFTIME
-# include "ignore-value.h"
# include "fprintftime.h"
# else
# include "strftime.h"
extern char *tzname[];
#endif
-/* Do multibyte processing if multibytes are supported, unless
+/* Do multibyte processing if multibyte encodings are supported, unless
multibyte sequences are safe in formats. Multibyte sequences are
safe if they cannot contain byte sequences that look like format
conversion specifications. The multibyte encodings used by the
GB18030, EUC-TW, BIG5, BIG5-HKSCS, CP950, EUC-JP, EUC-KR, CP949,
SHIFT_JIS, CP932, JOHAB) are safe for formats, because the byte '%'
cannot occur in a multibyte character except in the first byte.
- But this does not hold for the DEC-HANYU encoding used on OSF/1. */
-#if !defined __osf__
+
+ The DEC-HANYU encoding used on OSF/1 is not safe for formats, but
+ this encoding has never been seen in real-life use, so we ignore
+ it. */
+#if !(defined __osf__ && 0)
# define MULTIBYTE_IS_FORMAT_SAFE 1
#endif
#define DO_MULTIBYTE (! MULTIBYTE_IS_FORMAT_SAFE)
#define add(n, f) \
do \
{ \
- int _n = (n); \
- int _delta = width - _n; \
- int _incr = _n + (_delta > 0 ? _delta : 0); \
- if ((size_t) _incr >= maxsize - i) \
+ size_t _n = (n); \
+ size_t _w = (width < 0 ? 0 : width); \
+ size_t _incr = _n < _w ? _w : _n; \
+ if (_incr >= maxsize - i) \
return 0; \
if (p) \
{ \
- if (digits == 0 && _delta > 0) \
+ if (digits == 0 && _n < _w) \
{ \
+ size_t _delta = width - _n; \
if (pad == L_('0')) \
memset_zero (p, _delta); \
else \
fwrite_uppcase (p, (s), _n); \
else \
{ \
- /* We are ignoring the value of fwrite here, in spite of the \
- fact that technically, that may not be valid: the fwrite \
- specification in POSIX 2008 defers to that of fputc, which \
- is intended to be consistent with the one from ISO C, \
- which permits failure due to ENOMEM *without* setting the \
- stream's error indicator. */ \
- ignore_value (fwrite ((s), _n, 1, p)); \
+ /* Ignore the value of fwrite. The caller can determine whether \
+ an error occurred by inspecting ferror (P). All known fwrite \
+ implementations set the stream's error indicator when they \
+ fail due to ENOMEM etc., even though C11 and POSIX.1-2008 do \
+ not require this. */ \
+ fwrite (s, _n, 1, p); \
} \
} \
while (0) \
# define TOLOWER(Ch, L) tolower (Ch)
# endif
#endif
-/* We don't use `isdigit' here since the locale dependent
+/* We don't use 'isdigit' here since the locale dependent
interpretation is not what we want here. We only need to accept
the arabic digits in the ASCII range. One day there is perhaps a
more reliable way to accept other sets of digits. */
#ifdef _NL_CURRENT
/* We cannot make the following values variables since we must delay
the evaluation of these values until really needed since some
- expressions might not be valid in every situation. The `struct tm'
+ expressions might not be valid in every situation. The 'struct tm'
might be generated by a strptime() call that initialized
only a few elements. Dereference the pointers only if the format
requires this. Then it is ok to fail if the pointers are invalid. */
goto do_number_body;
do_number_spacepad:
- /* Force `_' flag unless overridden by `0' or `-' flag. */
+ /* Force '_' flag unless overridden by '0' or '-' flag. */
if (pad != L_('0') && pad != L_('-'))
pad = L_('_');