#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
-#include <alloca.h>
+#ifndef IN_LIBINTL
+# include <alloca.h>
+#endif
/* Specification. */
-#include "vasnprintf.h"
+#if WIDE_CHAR_VERSION
+# include "vasnwprintf.h"
+#else
+# include "vasnprintf.h"
+#endif
#include <stdio.h> /* snprintf(), sprintf() */
#include <stdlib.h> /* abort(), malloc(), realloc(), free() */
#include <errno.h> /* errno */
#include <limits.h> /* CHAR_BIT */
#include <float.h> /* DBL_MAX_EXP, LDBL_MAX_EXP */
-#include "printf-parse.h"
+#if WIDE_CHAR_VERSION
+# include "wprintf-parse.h"
+#else
+# include "printf-parse.h"
+#endif
/* For those losing systems which don't have 'alloca' we have to add
some additional code emulating it. */
# define local_wcslen wcslen
# else
/* Solaris 2.5.1 has wcslen() in a separate library libw.so. To avoid
- a dependency towards this library, here is a local substitute. */
+ a dependency towards this library, here is a local substitute.
+ Define this substitute only once, even if this file is included
+ twice in the same compilation unit. */
+# ifndef local_wcslen_defined
+# define local_wcslen_defined 1
static size_t
local_wcslen (const wchar_t *s)
{
;
return ptr - s;
}
+# endif
+# endif
+#endif
+
+#if WIDE_CHAR_VERSION
+# define VASNPRINTF vasnwprintf
+# define CHAR_T wchar_t
+# define DIRECTIVE wchar_t_directive
+# define DIRECTIVES wchar_t_directives
+# define PRINTF_PARSE wprintf_parse
+# define USE_SNPRINTF 1
+# if HAVE_DECL__SNWPRINTF
+ /* On Windows, the function swprintf() has a different signature than
+ on Unix; we use the _snwprintf() function instead. */
+# define SNPRINTF _snwprintf
+# else
+ /* Unix. */
+# define SNPRINTF swprintf
+# endif
+#else
+# define VASNPRINTF vasnprintf
+# define CHAR_T char
+# define DIRECTIVE char_directive
+# define DIRECTIVES char_directives
+# define PRINTF_PARSE printf_parse
+# define USE_SNPRINTF (HAVE_DECL__SNPRINTF || HAVE_SNPRINTF)
+# if HAVE_DECL__SNPRINTF
+ /* Windows. */
+# define SNPRINTF _snprintf
+# else
+ /* Unix. */
+# define SNPRINTF snprintf
# endif
#endif
-char *
-vasnprintf (char *resultbuf, size_t *lengthp, const char *format, va_list args)
+CHAR_T *
+VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list args)
{
- char_directives d;
+ DIRECTIVES d;
arguments a;
- if (printf_parse (format, &d, &a) < 0)
+ if (PRINTF_PARSE (format, &d, &a) < 0)
{
errno = EINVAL;
return NULL;
}
{
- char *buf =
- (char *) alloca (7 + d.max_width_length + d.max_precision_length + 6);
- const char *cp;
+ CHAR_T *buf =
+ (CHAR_T *) alloca ((7 + d.max_width_length + d.max_precision_length + 6)
+ * sizeof (CHAR_T));
+ const CHAR_T *cp;
unsigned int i;
- char_directive *dp;
+ DIRECTIVE *dp;
/* Output string accumulator. */
- char *result;
+ CHAR_T *result;
size_t allocated;
size_t length;
If length > 0, then result != NULL. */
#define ENSURE_ALLOCATION(needed) \
- if ((needed) > allocated) \
- { \
- char *memory; \
- \
- allocated = (allocated > 0 ? 2 * allocated : 12); \
- if ((needed) > allocated) \
- allocated = (needed); \
- if (result == resultbuf || result == NULL) \
- memory = (char *) malloc (allocated); \
- else \
- memory = (char *) realloc (result, allocated); \
- \
- if (memory == NULL) \
- { \
- if (!(result == resultbuf || result == NULL)) \
- free (result); \
- freea (buf); \
- CLEANUP (); \
- errno = ENOMEM; \
- return NULL; \
- } \
- if (result == resultbuf && length > 0) \
- memcpy (memory, result, length); \
- result = memory; \
+ if ((needed) > allocated) \
+ { \
+ CHAR_T *memory; \
+ \
+ allocated = (allocated > 0 ? 2 * allocated : 12); \
+ if ((needed) > allocated) \
+ allocated = (needed); \
+ if (result == resultbuf || result == NULL) \
+ memory = (CHAR_T *) malloc (allocated * sizeof (CHAR_T)); \
+ else \
+ memory = (CHAR_T *) realloc (result, allocated * sizeof (CHAR_T)); \
+ \
+ if (memory == NULL) \
+ { \
+ if (!(result == resultbuf || result == NULL)) \
+ free (result); \
+ freea (buf); \
+ CLEANUP (); \
+ errno = ENOMEM; \
+ return NULL; \
+ } \
+ if (result == resultbuf && length > 0) \
+ memcpy (memory, result, length * sizeof (CHAR_T)); \
+ result = memory; \
}
for (cp = format, i = 0, dp = &d.dir[0]; ; cp = dp->dir_end, i++, dp++)
size_t n = dp->dir_start - cp;
ENSURE_ALLOCATION (length + n);
- memcpy (result + length, cp, n);
+ memcpy (result + length, cp, n * sizeof (CHAR_T));
length += n;
}
if (i == d.count)
else
{
arg_type type = a.arg[dp->arg_index].type;
- char *p;
+ CHAR_T *p;
unsigned int prefix_count;
int prefixes[2];
-#if !HAVE_SNPRINTF
+#if !USE_SNPRINTF
unsigned int tmp_length;
- char tmpbuf[700];
- char *tmp;
+ CHAR_T tmpbuf[700];
+ CHAR_T *tmp;
/* Allocate a temporary buffer of sufficient size for calling
sprintf. */
}
else
{
- const char *digitp = dp->width_start;
+ const CHAR_T *digitp = dp->width_start;
do
width = width * 10 + (*digitp++ - '0');
}
else
{
- const char *digitp = dp->precision_start + 1;
+ const CHAR_T *digitp = dp->precision_start + 1;
precision = 0;
do
break;
case 'c':
-# ifdef HAVE_WINT_T
+# if defined HAVE_WINT_T && !WIDE_CHAR_VERSION
if (type == TYPE_WIDE_CHAR)
tmp_length = MB_CUR_MAX;
else
case 's':
# ifdef HAVE_WCHAR_T
if (type == TYPE_WIDE_STRING)
+# if WIDE_CHAR_VERSION
+ tmp_length =
+ local_wcslen (a.arg[dp->arg_index].a.a_wide_string);
+# else
tmp_length =
local_wcslen (a.arg[dp->arg_index].a.a_wide_string)
* MB_CUR_MAX;
+# endif
else
# endif
tmp_length = strlen (a.arg[dp->arg_index].a.a_string);
tmp_length++; /* account for trailing NUL */
}
- if (tmp_length <= sizeof (tmpbuf))
+ if (tmp_length <= sizeof (tmpbuf) / sizeof (CHAR_T))
tmp = tmpbuf;
else
{
- tmp = (char *) malloc (tmp_length);
+ tmp = (CHAR_T *) malloc (tmp_length * sizeof (CHAR_T));
if (tmp == NULL)
{
/* Out of memory. */
if (dp->width_start != dp->width_end)
{
size_t n = dp->width_end - dp->width_start;
- memcpy (p, dp->width_start, n);
+ memcpy (p, dp->width_start, n * sizeof (CHAR_T));
p += n;
}
if (dp->precision_start != dp->precision_end)
{
size_t n = dp->precision_end - dp->precision_start;
- memcpy (p, dp->precision_start, n);
+ memcpy (p, dp->precision_start, n * sizeof (CHAR_T));
p += n;
}
break;
}
*p = dp->conversion;
-#if HAVE_SNPRINTF
+#if USE_SNPRINTF
p[1] = '%';
p[2] = 'n';
p[3] = '\0';
prefixes[prefix_count++] = a.arg[dp->precision_arg_index].a.a_int;
}
-#if HAVE_SNPRINTF
+#if USE_SNPRINTF
/* Prepare checking whether snprintf returns the count
via %n. */
ENSURE_ALLOCATION (length + 1);
count = -1;
retcount = 0;
-#if HAVE_SNPRINTF
+#if USE_SNPRINTF
# define SNPRINTF_BUF(arg) \
switch (prefix_count) \
{ \
case 0: \
- retcount = snprintf (result + length, maxlen, buf, \
+ retcount = SNPRINTF (result + length, maxlen, buf, \
arg, &count); \
break; \
case 1: \
- retcount = snprintf (result + length, maxlen, buf, \
+ retcount = SNPRINTF (result + length, maxlen, buf, \
prefixes[0], arg, &count); \
break; \
case 2: \
- retcount = snprintf (result + length, maxlen, buf, \
+ retcount = SNPRINTF (result + length, maxlen, buf, \
prefixes[0], prefixes[1], arg, \
&count); \
break; \
abort ();
}
-#if HAVE_SNPRINTF
+#if USE_SNPRINTF
/* Portability: Not all implementations of snprintf()
are ISO C 99 compliant. Determine the number of
bytes that snprintf() has produced or would have
return NULL;
}
-#if !HAVE_SNPRINTF
+#if !USE_SNPRINTF
if (count >= tmp_length)
/* tmp_length was incorrectly calculated - fix the
code above! */
n = 2 * allocated;
ENSURE_ALLOCATION (n);
-#if HAVE_SNPRINTF
+#if USE_SNPRINTF
continue;
#endif
}
-#if HAVE_SNPRINTF
+#if USE_SNPRINTF
/* The snprintf() result did fit. */
#else
/* Append the sprintf() result. */
- memcpy (result + length, tmp, count);
+ memcpy (result + length, tmp, count * sizeof (CHAR_T));
if (tmp != tmpbuf)
free (tmp);
#endif
if (result != resultbuf && length + 1 < allocated)
{
/* Shrink the allocated memory if possible. */
- char *memory;
+ CHAR_T *memory;
- memory = (char *) realloc (result, length + 1);
+ memory = (CHAR_T *) realloc (result, (length + 1) * sizeof (CHAR_T));
if (memory != NULL)
result = memory;
}
return result;
}
}
+
+#undef SNPRINTF
+#undef USE_SNPRINTF
+#undef PRINTF_PARSE
+#undef DIRECTIVES
+#undef DIRECTIVE
+#undef CHAR_T
+#undef VASNPRINTF
projects / gnulib.git / blobdiff