/* vsprintf with automatic memory allocation.
This file is intended to provide exactly the same functionality
as the version in gnulib, but without the need for the xsize module.
Copyright (C) 1999, 2002-2007 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Tell glibc's <stdio.h> to provide a prototype for snprintf().
This must come before <config.h> because <config.h> may include
<features.h>, and once <features.h> has been included, it's too late. */
#ifndef _GNU_SOURCE
# define _GNU_SOURCE 1
#endif
#include <config.h>
#ifndef IN_LIBINTL
# include <alloca.h>
#endif
/* Specification. */
#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 <stdint.h> /* SIZE_MAX */
#include <string.h> /* memcpy(), strlen() */
#include <errno.h> /* errno */
#include <limits.h> /* CHAR_BIT, INT_MAX */
#include <float.h> /* DBL_MAX_EXP, LDBL_MAX_EXP */
#if WIDE_CHAR_VERSION
# include "wprintf-parse.h"
#else
# include "printf-parse.h"
#endif
#if HAVE_WCHAR_T
# if HAVE_WCSLEN
# 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.
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)
{
const wchar_t *ptr;
for (ptr = s; *ptr != (wchar_t) 0; ptr++)
;
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_T *
VASNPRINTF (CHAR_T *resultbuf, size_t *lengthp, const CHAR_T *format, va_list args)
{
DIRECTIVES d;
arguments a;
if (PRINTF_PARSE (format, &d, &a) < 0)
{
errno = EINVAL;
return NULL;
}
#define CLEANUP() \
free (d.dir); \
if (a.arg) \
free (a.arg);
if (printf_fetchargs (args, &a) < 0)
{
CLEANUP ();
errno = EINVAL;
return NULL;
}
{
size_t buf_neededlength;
CHAR_T *buf;
CHAR_T *buf_malloced;
const CHAR_T *cp;
size_t i;
DIRECTIVE *dp;
/* Output string accumulator. */
CHAR_T *result;
size_t allocated;
size_t length;
/* Allocate a small buffer that will hold a directive passed to
sprintf or snprintf. */
buf_neededlength = 7 + d.max_width_length + d.max_precision_length + 6;
#if HAVE_ALLOCA
if (buf_neededlength < 4000 / sizeof (CHAR_T))
{
buf = alloca (buf_neededlength * sizeof (CHAR_T));
buf_malloced = NULL;
}
else
#endif
{
if (SIZE_MAX / sizeof (CHAR_T) < buf_neededlength)
goto out_of_memory_1;
buf = (CHAR_T *) malloc (buf_neededlength * sizeof (CHAR_T));
if (buf == NULL)
goto out_of_memory_1;
buf_malloced = buf;
}
if (resultbuf != NULL)
{
result = resultbuf;
allocated = *lengthp;
}
else
{
result = NULL;
allocated = 0;
}
length = 0;
/* Invariants:
result is either == resultbuf or == NULL or malloc-allocated.
If length > 0, then result != NULL. */
/* Ensures that allocated >= length + extra. Aborts through a jump to
out_of_memory if size is too big. */
#define ENSURE_ALLOCATION(extra) \
{ \
size_t needed = length + (extra); \
if (needed < length) \
goto out_of_memory; \
if (needed > allocated) \
{ \
size_t memory_size; \
CHAR_T *memory; \
\
allocated = (allocated > 0 ? 2 * allocated : 12); \
if (needed > allocated) \
allocated = needed; \
if (SIZE_MAX / sizeof (CHAR_T) < allocated) \
goto out_of_memory; \
memory_size = allocated * sizeof (CHAR_T); \
if (result == resultbuf || result == NULL) \
memory = (CHAR_T *) malloc (memory_size); \
else \
memory = (CHAR_T *) realloc (result, memory_size); \
if (memory == NULL) \
goto out_of_memory; \
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++)
{
if (cp != dp->dir_start)
{
size_t n = dp->dir_start - cp;
ENSURE_ALLOCATION (n);
memcpy (result + length, cp, n * sizeof (CHAR_T));
length += n;
}
if (i == d.count)
break;
/* Execute a single directive. */
if (dp->conversion == '%')
{
if (!(dp->arg_index == ARG_NONE))
abort ();
ENSURE_ALLOCATION (1);
result[length] = '%';
length += 1;
}
else
{
if (!(dp->arg_index != ARG_NONE))
abort ();
if (dp->conversion == 'n')
{
switch (a.arg[dp->arg_index].type)
{
case TYPE_COUNT_SCHAR_POINTER:
*a.arg[dp->arg_index].a.a_count_schar_pointer = length;
break;
case TYPE_COUNT_SHORT_POINTER:
*a.arg[dp->arg_index].a.a_count_short_pointer = length;
break;
case TYPE_COUNT_INT_POINTER:
*a.arg[dp->arg_index].a.a_count_int_pointer = length;
break;
case TYPE_COUNT_LONGINT_POINTER:
*a.arg[dp->arg_index].a.a_count_longint_pointer = length;
break;
#if HAVE_LONG_LONG_INT
case TYPE_COUNT_LONGLONGINT_POINTER:
*a.arg[dp->arg_index].a.a_count_longlongint_pointer = length;
break;
#endif
default:
abort ();
}
}
else
{
arg_type type = a.arg[dp->arg_index].type;
CHAR_T *p;
unsigned int prefix_count;
int prefixes[2];
#if !USE_SNPRINTF
size_t tmp_length;
CHAR_T tmpbuf[700];
CHAR_T *tmp;
/* Allocate a temporary buffer of sufficient size for calling
sprintf. */
{
size_t width;
size_t precision;
width = 0;
if (dp->width_start != dp->width_end)
{
if (dp->width_arg_index != ARG_NONE)
{
int arg;
if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
abort ();
arg = a.arg[dp->width_arg_index].a.a_int;
width = (arg < 0 ? (unsigned int) (-arg) : arg);
}
else
{
const CHAR_T *digitp = dp->width_start;
do
{
size_t w_tmp = width * 10 + (*digitp++ - '0');
if (SIZE_MAX / 10 < width || w_tmp < width)
goto out_of_memory;
width = w_tmp;
}
while (digitp != dp->width_end);
}
}
precision = 6;
if (dp->precision_start != dp->precision_end)
{
if (dp->precision_arg_index != ARG_NONE)
{
int arg;
if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
abort ();
arg = a.arg[dp->precision_arg_index].a.a_int;
precision = (arg < 0 ? 0 : arg);
}
else
{
const CHAR_T *digitp = dp->precision_start + 1;
precision = 0;
while (digitp != dp->precision_end)
{
size_t p1 = 10 * precision + (*digitp++ - '0');
precision = ((SIZE_MAX / 10 < precision
|| p1 < precision)
? SIZE_MAX : p1);
}
}
}
switch (dp->conversion)
{
case 'd': case 'i': case 'u':
# if HAVE_LONG_LONG_INT
if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
tmp_length =
(unsigned int) (sizeof (unsigned long long) * CHAR_BIT
* 0.30103 /* binary -> decimal */
)
+ 1; /* turn floor into ceil */
else
# endif
if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
tmp_length =
(unsigned int) (sizeof (unsigned long) * CHAR_BIT
* 0.30103 /* binary -> decimal */
)
+ 1; /* turn floor into ceil */
else
tmp_length =
(unsigned int) (sizeof (unsigned int) * CHAR_BIT
* 0.30103 /* binary -> decimal */
)
+ 1; /* turn floor into ceil */
if (tmp_length < precision)
tmp_length = precision;
/* Multiply by 2, as an estimate for FLAG_GROUP. */
/* Add 1, to account for a leading sign. */
tmp_length = (tmp_length < SIZE_MAX / 2
? 2 * tmp_length + 1
: SIZE_MAX);
break;
case 'o':
# if HAVE_LONG_LONG_INT
if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
tmp_length =
(unsigned int) (sizeof (unsigned long long) * CHAR_BIT
* 0.333334 /* binary -> octal */
)
+ 1; /* turn floor into ceil */
else
# endif
if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
tmp_length =
(unsigned int) (sizeof (unsigned long) * CHAR_BIT
* 0.333334 /* binary -> octal */
)
+ 1; /* turn floor into ceil */
else
tmp_length =
(unsigned int) (sizeof (unsigned int) * CHAR_BIT
* 0.333334 /* binary -> octal */
)
+ 1; /* turn floor into ceil */
if (tmp_length < precision)
tmp_length = precision;
/* Add 1, to account for a leading sign. */
tmp_length += (tmp_length < SIZE_MAX);
break;
case 'x': case 'X':
# if HAVE_LONG_LONG_INT
if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
tmp_length =
(unsigned int) (sizeof (unsigned long long) * CHAR_BIT
* 0.25 /* binary -> hexadecimal */
)
+ 1; /* turn floor into ceil */
else
# endif
if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
tmp_length =
(unsigned int) (sizeof (unsigned long) * CHAR_BIT
* 0.25 /* binary -> hexadecimal */
)
+ 1; /* turn floor into ceil */
else
tmp_length =
(unsigned int) (sizeof (unsigned int) * CHAR_BIT
* 0.25 /* binary -> hexadecimal */
)
+ 1; /* turn floor into ceil */
if (tmp_length < precision)
tmp_length = precision;
/* Add 2, to account for a leading sign or alternate form. */
tmp_length += 2;
if (tmp_length < 2)
goto out_of_memory;
break;
case 'f': case 'F':
# if HAVE_LONG_DOUBLE
if (type == TYPE_LONGDOUBLE)
tmp_length =
(unsigned int) (LDBL_MAX_EXP
* 0.30103 /* binary -> decimal */
* 2 /* estimate for FLAG_GROUP */
)
+ 1 /* turn floor into ceil */
+ 10; /* sign, decimal point etc. */
else
# endif
tmp_length =
(unsigned int) (DBL_MAX_EXP
* 0.30103 /* binary -> decimal */
* 2 /* estimate for FLAG_GROUP */
)
+ 1 /* turn floor into ceil */
+ 10; /* sign, decimal point etc. */
tmp_length += precision;
if (tmp_length < precision)
goto out_of_memory;
break;
case 'e': case 'E': case 'g': case 'G':
tmp_length =
12; /* sign, decimal point, exponent etc. */
tmp_length += precision;
if (tmp_length < precision)
goto out_of_memory;
break;
case 'a': case 'A':
# if HAVE_LONG_DOUBLE
if (type == TYPE_LONGDOUBLE)
tmp_length =
(unsigned int) (LDBL_DIG
* 0.831 /* decimal -> hexadecimal */
)
+ 1; /* turn floor into ceil */
else
# endif
tmp_length =
(unsigned int) (DBL_DIG
* 0.831 /* decimal -> hexadecimal */
)
+ 1; /* turn floor into ceil */
if (tmp_length < precision)
tmp_length = precision;
/* Account for sign, decimal point etc. */
tmp_length += 12;
if (tmp_length < 12)
goto out_of_memory;
break;
case 'c':
# if HAVE_WINT_T && !WIDE_CHAR_VERSION
if (type == TYPE_WIDE_CHAR)
tmp_length = MB_CUR_MAX;
else
# endif
tmp_length = 1;
break;
case 's':
# if HAVE_WCHAR_T
if (type == TYPE_WIDE_STRING)
{
tmp_length =
local_wcslen (a.arg[dp->arg_index].a.a_wide_string);
# if !WIDE_CHAR_VERSION
if (SIZE_MAX / MB_CUR_MAX < tmp_length)
goto out_of_memory;
tmp_length *= MB_CUR_MAX;
# endif
}
else
# endif
tmp_length = strlen (a.arg[dp->arg_index].a.a_string);
break;
case 'p':
tmp_length =
(unsigned int) (sizeof (void *) * CHAR_BIT
* 0.25 /* binary -> hexadecimal */
)
+ 1 /* turn floor into ceil */
+ 2; /* account for leading 0x */
break;
default:
abort ();
}
if (tmp_length < width)
tmp_length = width;
tmp_length++; /* account for trailing NUL */
if (!tmp_length)
goto out_of_memory;
}
if (tmp_length <= sizeof (tmpbuf) / sizeof (CHAR_T))
tmp = tmpbuf;
else
{
if (SIZE_MAX / sizeof (CHAR_T) < tmp_length)
/* Overflow, would lead to out of memory. */
goto out_of_memory;
tmp = (CHAR_T *) malloc (tmp_length * sizeof (CHAR_T));
if (tmp == NULL)
/* Out of memory. */
goto out_of_memory;
}
#endif
/* Construct the format string for calling snprintf or
sprintf. */
p = buf;
*p++ = '%';
if (dp->flags & FLAG_GROUP)
*p++ = '\'';
if (dp->flags & FLAG_LEFT)
*p++ = '-';
if (dp->flags & FLAG_SHOWSIGN)
*p++ = '+';
if (dp->flags & FLAG_SPACE)
*p++ = ' ';
if (dp->flags & FLAG_ALT)
*p++ = '#';
if (dp->flags & FLAG_ZERO)
*p++ = '0';
if (dp->width_start != dp->width_end)
{
size_t n = dp->width_end - dp->width_start;
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 * sizeof (CHAR_T));
p += n;
}
switch (type)
{
#if HAVE_LONG_LONG_INT
case TYPE_LONGLONGINT:
case TYPE_ULONGLONGINT:
*p++ = 'l';
/*FALLTHROUGH*/
#endif
case TYPE_LONGINT:
case TYPE_ULONGINT:
#if HAVE_WINT_T
case TYPE_WIDE_CHAR:
#endif
#if HAVE_WCHAR_T
case TYPE_WIDE_STRING:
#endif
*p++ = 'l';
break;
#if HAVE_LONG_DOUBLE
case TYPE_LONGDOUBLE:
*p++ = 'L';
break;
#endif
default:
break;
}
*p = dp->conversion;
#if USE_SNPRINTF
p[1] = '%';
p[2] = 'n';
p[3] = '\0';
#else
p[1] = '\0';
#endif
/* Construct the arguments for calling snprintf or sprintf. */
prefix_count = 0;
if (dp->width_arg_index != ARG_NONE)
{
if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
abort ();
prefixes[prefix_count++] = a.arg[dp->width_arg_index].a.a_int;
}
if (dp->precision_arg_index != ARG_NONE)
{
if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
abort ();
prefixes[prefix_count++] = a.arg[dp->precision_arg_index].a.a_int;
}
#if USE_SNPRINTF
/* Prepare checking whether snprintf returns the count
via %n. */
ENSURE_ALLOCATION (1);
result[length] = '\0';
#endif
for (;;)
{
size_t maxlen;
int count;
int retcount;
maxlen = allocated - length;
count = -1;
retcount = 0;
#if USE_SNPRINTF
# define SNPRINTF_BUF(arg) \
switch (prefix_count) \
{ \
case 0: \
retcount = SNPRINTF (result + length, maxlen, buf, \
arg, &count); \
break; \
case 1: \
retcount = SNPRINTF (result + length, maxlen, buf, \
prefixes[0], arg, &count); \
break; \
case 2: \
retcount = SNPRINTF (result + length, maxlen, buf, \
prefixes[0], prefixes[1], arg, \
&count); \
break; \
default: \
abort (); \
}
#else
# define SNPRINTF_BUF(arg) \
switch (prefix_count) \
{ \
case 0: \
count = sprintf (tmp, buf, arg); \
break; \
case 1: \
count = sprintf (tmp, buf, prefixes[0], arg); \
break; \
case 2: \
count = sprintf (tmp, buf, prefixes[0], prefixes[1],\
arg); \
break; \
default: \
abort (); \
}
#endif
switch (type)
{
case TYPE_SCHAR:
{
int arg = a.arg[dp->arg_index].a.a_schar;
SNPRINTF_BUF (arg);
}
break;
case TYPE_UCHAR:
{
unsigned int arg = a.arg[dp->arg_index].a.a_uchar;
SNPRINTF_BUF (arg);
}
break;
case TYPE_SHORT:
{
int arg = a.arg[dp->arg_index].a.a_short;
SNPRINTF_BUF (arg);
}
break;
case TYPE_USHORT:
{
unsigned int arg = a.arg[dp->arg_index].a.a_ushort;
SNPRINTF_BUF (arg);
}
break;
case TYPE_INT:
{
int arg = a.arg[dp->arg_index].a.a_int;
SNPRINTF_BUF (arg);
}
break;
case TYPE_UINT:
{
unsigned int arg = a.arg[dp->arg_index].a.a_uint;
SNPRINTF_BUF (arg);
}
break;
case TYPE_LONGINT:
{
long int arg = a.arg[dp->arg_index].a.a_longint;
SNPRINTF_BUF (arg);
}
break;
case TYPE_ULONGINT:
{
unsigned long int arg = a.arg[dp->arg_index].a.a_ulongint;
SNPRINTF_BUF (arg);
}
break;
#if HAVE_LONG_LONG_INT
case TYPE_LONGLONGINT:
{
long long int arg = a.arg[dp->arg_index].a.a_longlongint;
SNPRINTF_BUF (arg);
}
break;
case TYPE_ULONGLONGINT:
{
unsigned long long int arg = a.arg[dp->arg_index].a.a_ulonglongint;
SNPRINTF_BUF (arg);
}
break;
#endif
case TYPE_DOUBLE:
{
double arg = a.arg[dp->arg_index].a.a_double;
SNPRINTF_BUF (arg);
}
break;
#if HAVE_LONG_DOUBLE
case TYPE_LONGDOUBLE:
{
long double arg = a.arg[dp->arg_index].a.a_longdouble;
SNPRINTF_BUF (arg);
}
break;
#endif
case TYPE_CHAR:
{
int arg = a.arg[dp->arg_index].a.a_char;
SNPRINTF_BUF (arg);
}
break;
#if HAVE_WINT_T
case TYPE_WIDE_CHAR:
{
wint_t arg = a.arg[dp->arg_index].a.a_wide_char;
SNPRINTF_BUF (arg);
}
break;
#endif
case TYPE_STRING:
{
const char *arg = a.arg[dp->arg_index].a.a_string;
SNPRINTF_BUF (arg);
}
break;
#if HAVE_WCHAR_T
case TYPE_WIDE_STRING:
{
const wchar_t *arg = a.arg[dp->arg_index].a.a_wide_string;
SNPRINTF_BUF (arg);
}
break;
#endif
case TYPE_POINTER:
{
void *arg = a.arg[dp->arg_index].a.a_pointer;
SNPRINTF_BUF (arg);
}
break;
default:
abort ();
}
#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
produced. */
if (count >= 0)
{
/* Verify that snprintf() has NUL-terminated its
result. */
if (count < maxlen && result[length + count] != '\0')
abort ();
/* Portability hack. */
if (retcount > count)
count = retcount;
}
else
{
/* snprintf() doesn't understand the '%n'
directive. */
if (p[1] != '\0')
{
/* Don't use the '%n' directive; instead, look
at the snprintf() return value. */
p[1] = '\0';
continue;
}
else
{
/* Look at the snprintf() return value. */
if (retcount < 0)
{
/* HP-UX 10.20 snprintf() is doubly deficient:
It doesn't understand the '%n' directive,
*and* it returns -1 (rather than the length
that would have been required) when the
buffer is too small. */
size_t bigger_need =
(allocated > 12 ? allocated : 12);
ENSURE_ALLOCATION (bigger_need);
continue;
}
else
count = retcount;
}
}
#endif
/* Attempt to handle failure. */
if (count < 0)
{
if (!(result == resultbuf || result == NULL))
free (result);
if (buf_malloced != NULL)
free (buf_malloced);
CLEANUP ();
errno = EINVAL;
return NULL;
}
#if !USE_SNPRINTF
if (count >= tmp_length)
/* tmp_length was incorrectly calculated - fix the
code above! */
abort ();
#endif
/* Make room for the result. */
if (count >= maxlen)
{
/* Need at least count bytes. But allocate
proportionally, to avoid looping eternally if
snprintf() reports a too small count. */
ENSURE_ALLOCATION (count < allocated
? allocated : count);
#if USE_SNPRINTF
continue;
#endif
}
#if USE_SNPRINTF
/* The snprintf() result did fit. */
#else
/* Append the sprintf() result. */
memcpy (result + length, tmp, count * sizeof (CHAR_T));
if (tmp != tmpbuf)
free (tmp);
#endif
length += count;
break;
}
}
}
}
/* Add the final NUL. */
ENSURE_ALLOCATION (1);
result[length] = '\0';
if (result != resultbuf && length + 1 < allocated)
{
/* Shrink the allocated memory if possible. */
CHAR_T *memory;
memory = (CHAR_T *) realloc (result, (length + 1) * sizeof (CHAR_T));
if (memory != NULL)
result = memory;
}
if (buf_malloced != NULL)
free (buf_malloced);
CLEANUP ();
*lengthp = length;
if (length > INT_MAX)
goto length_overflow;
return result;
length_overflow:
/* We could produce such a big string, but its length doesn't fit into
an 'int'. POSIX says that snprintf() fails with errno = EOVERFLOW in
this case. */
if (result != resultbuf)
free (result);
errno = EOVERFLOW;
return NULL;
out_of_memory:
if (!(result == resultbuf || result == NULL))
free (result);
if (buf_malloced != NULL)
free (buf_malloced);
out_of_memory_1:
CLEANUP ();
errno = ENOMEM;
return NULL;
}
}
#undef SNPRINTF
#undef USE_SNPRINTF
#undef PRINTF_PARSE
#undef DIRECTIVES
#undef DIRECTIVE
#undef CHAR_T
#undef VASNPRINTF
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