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Backport implementation of g_printf_string_upper_bound from 1.3. Bug

Browse Source 
Mon Feb 26 21:06:17 CST 2001  Shawn T. Amundson <amundson@gtk.org>

        * gstrfuncs.c: Backport implementation of
        g_printf_string_upper_bound from 1.3.  Bug #50217.

        * gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
          Fourth param of g_source_add() is a gpointer, so add a cast to that
          param.  From Richard K. Lloyd.  A portion of bug #50793.
This commit is contained in:
CST 2001 Shawn T. Amundson 2001-02-27 04:46:00 +00:00 committed by Shawn Amundson
parent 80af227458
commit a44d5145ea
12 changed files with 726 additions and 252 deletions
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10
ChangeLog
View File

@ -1,3 +1,13 @@
Mon Feb 26 21:06:17 CST 2001 Shawn T. Amundson <amundson@gtk.org>
* gstrfuncs.c: Backport implementation of
g_printf_string_upper_bound from 1.3. Bug #50217.
* gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
Fourth param of g_source_add() is a gpointer, so add a cast to that
param. From Richard K. Lloyd. A portion of bug #50793.
Mon Feb 26 23:06:54 2001 Owen Taylor <otaylor@redhat.com>
* README: Fix information about reporting bugs to

10
ChangeLog.pre-2-0
View File

@ -1,3 +1,13 @@
Mon Feb 26 21:06:17 CST 2001 Shawn T. Amundson <amundson@gtk.org>
* gstrfuncs.c: Backport implementation of
g_printf_string_upper_bound from 1.3. Bug #50217.
* gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
Fourth param of g_source_add() is a gpointer, so add a cast to that
param. From Richard K. Lloyd. A portion of bug #50793.
Mon Feb 26 23:06:54 2001 Owen Taylor <otaylor@redhat.com>
* README: Fix information about reporting bugs to

10
ChangeLog.pre-2-10
View File

@ -1,3 +1,13 @@
Mon Feb 26 21:06:17 CST 2001 Shawn T. Amundson <amundson@gtk.org>
* gstrfuncs.c: Backport implementation of
g_printf_string_upper_bound from 1.3. Bug #50217.
* gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
Fourth param of g_source_add() is a gpointer, so add a cast to that
param. From Richard K. Lloyd. A portion of bug #50793.
Mon Feb 26 23:06:54 2001 Owen Taylor <otaylor@redhat.com>
* README: Fix information about reporting bugs to

10
ChangeLog.pre-2-12
View File

@ -1,3 +1,13 @@
Mon Feb 26 21:06:17 CST 2001 Shawn T. Amundson <amundson@gtk.org>
* gstrfuncs.c: Backport implementation of
g_printf_string_upper_bound from 1.3. Bug #50217.
* gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
Fourth param of g_source_add() is a gpointer, so add a cast to that
param. From Richard K. Lloyd. A portion of bug #50793.
Mon Feb 26 23:06:54 2001 Owen Taylor <otaylor@redhat.com>
* README: Fix information about reporting bugs to

10
ChangeLog.pre-2-2
View File

@ -1,3 +1,13 @@
Mon Feb 26 21:06:17 CST 2001 Shawn T. Amundson <amundson@gtk.org>
* gstrfuncs.c: Backport implementation of
g_printf_string_upper_bound from 1.3. Bug #50217.
* gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
Fourth param of g_source_add() is a gpointer, so add a cast to that
param. From Richard K. Lloyd. A portion of bug #50793.
Mon Feb 26 23:06:54 2001 Owen Taylor <otaylor@redhat.com>
* README: Fix information about reporting bugs to

10
ChangeLog.pre-2-4
View File

@ -1,3 +1,13 @@
Mon Feb 26 21:06:17 CST 2001 Shawn T. Amundson <amundson@gtk.org>
* gstrfuncs.c: Backport implementation of
g_printf_string_upper_bound from 1.3. Bug #50217.
* gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
Fourth param of g_source_add() is a gpointer, so add a cast to that
param. From Richard K. Lloyd. A portion of bug #50793.
Mon Feb 26 23:06:54 2001 Owen Taylor <otaylor@redhat.com>
* README: Fix information about reporting bugs to

10
ChangeLog.pre-2-6
View File

@ -1,3 +1,13 @@
Mon Feb 26 21:06:17 CST 2001 Shawn T. Amundson <amundson@gtk.org>
* gstrfuncs.c: Backport implementation of
g_printf_string_upper_bound from 1.3. Bug #50217.
* gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
Fourth param of g_source_add() is a gpointer, so add a cast to that
param. From Richard K. Lloyd. A portion of bug #50793.
Mon Feb 26 23:06:54 2001 Owen Taylor <otaylor@redhat.com>
* README: Fix information about reporting bugs to

10
ChangeLog.pre-2-8
View File

@ -1,3 +1,13 @@
Mon Feb 26 21:06:17 CST 2001 Shawn T. Amundson <amundson@gtk.org>
* gstrfuncs.c: Backport implementation of
g_printf_string_upper_bound from 1.3. Bug #50217.
* gmain.c: Cast RHS of an assignment to a GSourceFunc variable.
Fourth param of g_source_add() is a gpointer, so add a cast to that
param. From Richard K. Lloyd. A portion of bug #50793.
Mon Feb 26 23:06:54 2001 Owen Taylor <otaylor@redhat.com>
* README: Fix information about reporting bugs to

4
glib/gmain.c
View File

@ -1362,7 +1362,7 @@ g_idle_dispatch (gpointer source_data,
GTimeVal *dispatch_time,
gpointer user_data)
{
GSourceFunc func = source_data;
GSourceFunc func = (GSourceFunc) source_data;
return func (user_data);
}
@ -1375,7 +1375,7 @@ g_idle_add_full (gint priority,
{
g_return_val_if_fail (function != NULL, 0);
return g_source_add (priority, FALSE, &idle_funcs, function, data, notify);
return g_source_add (priority, FALSE, &idle_funcs, (gpointer) function, data, notify);
}
guint

445
glib/gstrfuncs.c
View File

@ -37,6 +37,7 @@
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <errno.h>
#include <ctype.h> /* For tolower() */
#if !defined (HAVE_STRSIGNAL) || !defined(NO_SYS_SIGLIST_DECL)
#include <signal.h>
@ -46,6 +47,36 @@
* inteferes with g_strsignal() on some OSes
*/
typedef union _GDoubleIEEE754 GDoubleIEEE754;
#define G_IEEE754_DOUBLE_BIAS (1023)
/* multiply with base2 exponent to get base10 exponent (nomal numbers) */
#define G_LOG_2_BASE_10 (0.30102999566398119521)
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
union _GDoubleIEEE754
{
gdouble v_double;
struct {
guint mantissa_low : 32;
guint mantissa_high : 20;
guint biased_exponent : 11;
guint sign : 1;
} mpn;
};
#elif G_BYTE_ORDER == G_BIG_ENDIAN
union _GDoubleIEEE754
{
gdouble v_double;
struct {
guint sign : 1;
guint biased_exponent : 11;
guint mantissa_high : 20;
guint mantissa_low : 32;
} mpn;
};
#else /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */
#error unknown ENDIAN type
#endif /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */
gchar*
g_strdup (const gchar *str)
{
@ -791,143 +822,309 @@ g_strsignal (gint signum)
return msg;
}
typedef struct
{
guint min_width;
guint precision;
gboolean alternate_format, zero_padding, adjust_left, locale_grouping;
gboolean add_space, add_sign, possible_sign, seen_precision;
gboolean mod_half, mod_long, mod_extra_long;
} PrintfArgSpec;
guint
g_printf_string_upper_bound (const gchar* format,
va_list args)
{
static const gboolean honour_longs = SIZEOF_LONG > 4 || SIZEOF_VOID_P > 4;
guint len = 1;
if (!format)
return len;
while (*format)
{
gboolean long_int = FALSE;
gboolean extra_long = FALSE;
gchar c;
register gchar c = *format++;
c = *format++;
if (c != '%')
len += 1;
else /* (c == '%') */
{
PrintfArgSpec spec = { 0, };
gboolean seen_l = FALSE, conv_done = FALSE;
guint conv_len = 0;
const gchar *spec_start = format;
if (c == '%')
{
gboolean done = FALSE;
do
{
c = *format++;
switch (c)
{
GDoubleIEEE754 u_double;
guint v_uint;
gint v_int;
const gchar *v_string;
while (*format && !done)
{
switch (*format++)
{
gchar *string_arg;
/* beware of positional parameters
*/
case '$':
g_warning (G_GNUC_PRETTY_FUNCTION
"(): unable to handle positional parameters (%%n$)");
len += 1024; /* try adding some safety padding */
break;
case '*':
len += va_arg (args, int);
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
/* add specified format length, since it might exceed the
* size we assume it to have.
*/
format -= 1;
len += strtol (format, (char**) &format, 10);
break;
case 'h':
/* ignore short int flag, since all args have at least the
* same size as an int
*/
break;
case 'l':
if (long_int)
extra_long = TRUE; /* linux specific */
else
long_int = TRUE;
break;
case 'q':
case 'L':
long_int = TRUE;
extra_long = TRUE;
break;
case '\'':
len += 64;
break;
case 's':
string_arg = va_arg (args, char *);
if (string_arg)
len += strlen (string_arg);
else
{
/* add enough padding to hold "(null)" identifier */
len += 16;
}
done = TRUE;
break;
case 'd':
case 'i':
case 'o':
case 'u':
case 'x':
case 'X':
#ifdef G_HAVE_GINT64
if (extra_long)
(void) va_arg (args, gint64);
else
#endif /* G_HAVE_GINT64 */
{
if (long_int)
(void) va_arg (args, long);
else
(void) va_arg (args, int);
}
len += extra_long ? 64 : 32;
done = TRUE;
break;
case 'D':
case 'O':
case 'U':
(void) va_arg (args, long);
len += 32;
done = TRUE;
break;
case 'e':
case 'E':
case 'f':
case 'g':
case 'G':
/* parse flags
*/
case '#':
spec.alternate_format = TRUE;
break;
case '0':
spec.zero_padding = TRUE;
break;
case '-':
spec.adjust_left = TRUE;
break;
case ' ':
spec.add_space = TRUE;
break;
case '+':
spec.add_sign = TRUE;
break;
case '\'':
spec.locale_grouping = TRUE;
break;
/* parse output size specifications
*/
case '.':
spec.seen_precision = TRUE;
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
v_uint = c - '0';
c = *format;
while (c >= '0' && c <= '9')
{
format++;
v_uint = v_uint * 10 + c - '0';
c = *format;
}
if (spec.seen_precision)
spec.precision = MAX (spec.precision, v_uint);
else
spec.min_width = MAX (spec.min_width, v_uint);
break;
case '*':
v_int = va_arg (args, int);
if (spec.seen_precision)
{
/* forget about negative precision */
if (v_int >= 0)
spec.precision = MAX (spec.precision, v_int);
}
else
{
if (v_int < 0)
{
v_int = - v_int;
spec.adjust_left = TRUE;
}
spec.min_width = MAX (spec.min_width, v_int);
}
break;
/* parse type modifiers
*/
case 'h':
spec.mod_half = TRUE;
break;
case 'l':
if (!seen_l)
{
spec.mod_long = TRUE;
seen_l = TRUE;
break;
}
/* else, fall through */
case 'L':
case 'q':
spec.mod_long = TRUE;
spec.mod_extra_long = TRUE;
break;
case 'z':
case 'Z':
#if GLIB_SIZEOF_SIZE_T > 4
spec.mod_long = TRUE;
spec.mod_extra_long = TRUE;
#endif /* GLIB_SIZEOF_SIZE_T > 4 */
break;
case 't':
#if GLIB_SIZEOF_PTRDIFF_T > 4
spec.mod_long = TRUE;
spec.mod_extra_long = TRUE;
#endif /* GLIB_SIZEOF_PTRDIFF_T > 4 */
break;
case 'j':
#if GLIB_SIZEOF_INTMAX_T > 4
spec.mod_long = TRUE;
spec.mod_extra_long = TRUE;
#endif /* GLIB_SIZEOF_INTMAX_T > 4 */
break;
/* parse output conversions
*/
case '%':
conv_len += 1;
break;
case 'O':
case 'D':
case 'I':
case 'U':
/* some C libraries feature long variants for these as well? */
spec.mod_long = TRUE;
/* fall through */
case 'o':
conv_len += 2;
/* fall through */
case 'd':
case 'i':
conv_len += 1; /* sign */
/* fall through */
case 'u':
conv_len += 4;
/* fall through */
case 'x':
case 'X':
spec.possible_sign = TRUE;
conv_len += 10;
if (spec.mod_long && honour_longs)
conv_len *= 2;
if (spec.mod_extra_long)
conv_len *= 2;
if (spec.mod_extra_long)
{
#ifdef G_HAVE_GINT64
(void) va_arg (args, gint64);
#else /* !G_HAVE_GINT64 */
(void) va_arg (args, long);
#endif /* !G_HAVE_GINT64 */
}
else if (spec.mod_long)
(void) va_arg (args, long);
else
(void) va_arg (args, int);
break;
case 'A':
case 'a':
/* 0x */
conv_len += 2;
/* fall through */
case 'g':
case 'G':
case 'e':
case 'E':
case 'f':
spec.possible_sign = TRUE;
/* n . dddddddddddddddddddddddd E +- eeee */
conv_len += 1 + 1 + MAX (24, spec.precision) + 1 + 1 + 4;
if (spec.mod_extra_long)
g_warning (G_GNUC_PRETTY_FUNCTION
"(): unable to handle long double, collecting double only");
#ifdef HAVE_LONG_DOUBLE
if (extra_long)
(void) va_arg (args, long double);
else
#endif /* HAVE_LONG_DOUBLE */
(void) va_arg (args, double);
len += extra_long ? 128 : 64;
done = TRUE;
break;
case 'c':
(void) va_arg (args, int);
len += 1;
done = TRUE;
break;
case 'p':
case 'n':
(void) va_arg (args, void*);
len += 32;
done = TRUE;
break;
case '%':
len += 1;
done = TRUE;
break;
default:
/* ignore unknow/invalid flags */
break;
}
}
}
else
len += 1;
}
#error need to implement special handling for long double
#endif
u_double.v_double = va_arg (args, double);
/* %f can expand up to all significant digits before '.' (308) */
if (c == 'f' &&
u_double.mpn.biased_exponent > 0 && u_double.mpn.biased_exponent < 2047)
{
gint exp = u_double.mpn.biased_exponent;
exp -= G_IEEE754_DOUBLE_BIAS;
exp = exp * G_LOG_2_BASE_10 + 1;
conv_len += exp;
}
/* some printf() implementations require extra padding for rounding */
conv_len += 2;
/* we can't really handle locale specific grouping here */
if (spec.locale_grouping)
conv_len *= 2;
break;
case 'C':
spec.mod_long = TRUE;
/* fall through */
case 'c':
conv_len += spec.mod_long ? MB_LEN_MAX : 1;
(void) va_arg (args, int);
break;
case 'S':
spec.mod_long = TRUE;
/* fall through */
case 's':
v_string = va_arg (args, char*);
if (!v_string)
conv_len += 8; /* hold "(null)" */
else if (spec.seen_precision)
conv_len += spec.precision;
else
conv_len += strlen (v_string);
conv_done = TRUE;
if (spec.mod_long)
{
g_warning (G_GNUC_PRETTY_FUNCTION
"(): unable to handle wide char strings");
len += 1024; /* try adding some safety padding */
}
break;
case 'P': /* do we actually need this? */
/* fall through */
case 'p':
spec.alternate_format = TRUE;
conv_len += 10;
if (honour_longs)
conv_len *= 2;
/* fall through */
case 'n':
conv_done = TRUE;
(void) va_arg (args, void*);
break;
case 'm':
/* there's not much we can do to be clever */
v_string = g_strerror (errno);
v_uint = v_string ? strlen (v_string) : 0;
conv_len += MAX (256, v_uint);
break;
/* handle invalid cases
*/
case '\000':
/* no conversion specification, bad bad */
conv_len += format - spec_start;
break;
default:
g_warning (G_GNUC_PRETTY_FUNCTION
"(): unable to handle `%c' while parsing format",
c);
break;
}
conv_done |= conv_len > 0;
}
while (!conv_done);
/* handle width specifications */
conv_len = MAX (conv_len, MAX (spec.precision, spec.min_width));
/* handle flags */
conv_len += spec.alternate_format ? 2 : 0;
conv_len += (spec.add_space || spec.add_sign || spec.possible_sign);
/* finally done */
len += conv_len;
} /* else (c == '%') */
} /* while (*format) */
return len;
}

4
gmain.c
View File

@ -1362,7 +1362,7 @@ g_idle_dispatch (gpointer source_data,
GTimeVal *dispatch_time,
gpointer user_data)
{
GSourceFunc func = source_data;
GSourceFunc func = (GSourceFunc) source_data;
return func (user_data);
}
@ -1375,7 +1375,7 @@ g_idle_add_full (gint priority,
{
g_return_val_if_fail (function != NULL, 0);
return g_source_add (priority, FALSE, &idle_funcs, function, data, notify);
return g_source_add (priority, FALSE, &idle_funcs, (gpointer) function, data, notify);
}
guint

445
gstrfuncs.c
View File

@ -37,6 +37,7 @@
#include <stdlib.h>
#include <string.h>
#include <locale.h>
#include <errno.h>
#include <ctype.h> /* For tolower() */
#if !defined (HAVE_STRSIGNAL) || !defined(NO_SYS_SIGLIST_DECL)
#include <signal.h>
@ -46,6 +47,36 @@
* inteferes with g_strsignal() on some OSes
*/
typedef union _GDoubleIEEE754 GDoubleIEEE754;
#define G_IEEE754_DOUBLE_BIAS (1023)
/* multiply with base2 exponent to get base10 exponent (nomal numbers) */
#define G_LOG_2_BASE_10 (0.30102999566398119521)
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
union _GDoubleIEEE754
{
gdouble v_double;
struct {
guint mantissa_low : 32;
guint mantissa_high : 20;
guint biased_exponent : 11;
guint sign : 1;
} mpn;
};
#elif G_BYTE_ORDER == G_BIG_ENDIAN
union _GDoubleIEEE754
{
gdouble v_double;
struct {
guint sign : 1;
guint biased_exponent : 11;
guint mantissa_high : 20;
guint mantissa_low : 32;
} mpn;
};
#else /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */
#error unknown ENDIAN type
#endif /* !G_LITTLE_ENDIAN && !G_BIG_ENDIAN */
gchar*
g_strdup (const gchar *str)
{
@ -791,143 +822,309 @@ g_strsignal (gint signum)
return msg;
}
typedef struct
{
guint min_width;
guint precision;
gboolean alternate_format, zero_padding, adjust_left, locale_grouping;
gboolean add_space, add_sign, possible_sign, seen_precision;
gboolean mod_half, mod_long, mod_extra_long;
} PrintfArgSpec;
guint
g_printf_string_upper_bound (const gchar* format,
va_list args)
{
static const gboolean honour_longs = SIZEOF_LONG > 4 || SIZEOF_VOID_P > 4;
guint len = 1;
if (!format)
return len;
while (*format)
{
gboolean long_int = FALSE;
gboolean extra_long = FALSE;
gchar c;
register gchar c = *format++;
c = *format++;
if (c != '%')
len += 1;
else /* (c == '%') */
{
PrintfArgSpec spec = { 0, };
gboolean seen_l = FALSE, conv_done = FALSE;
guint conv_len = 0;
const gchar *spec_start = format;
if (c == '%')
{
gboolean done = FALSE;
do
{
c = *format++;
switch (c)
{
GDoubleIEEE754 u_double;
guint v_uint;
gint v_int;
const gchar *v_string;
while (*format && !done)
{
switch (*format++)
{
gchar *string_arg;
/* beware of positional parameters
*/
case '$':
g_warning (G_GNUC_PRETTY_FUNCTION
"(): unable to handle positional parameters (%%n$)");
len += 1024; /* try adding some safety padding */
break;
case '*':
len += va_arg (args, int);
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
/* add specified format length, since it might exceed the
* size we assume it to have.
*/
format -= 1;
len += strtol (format, (char**) &format, 10);
break;
case 'h':
/* ignore short int flag, since all args have at least the
* same size as an int
*/
break;
case 'l':
if (long_int)
extra_long = TRUE; /* linux specific */
else
long_int = TRUE;
break;
case 'q':
case 'L':
long_int = TRUE;
extra_long = TRUE;
break;
case '\'':
len += 64;
break;
case 's':
string_arg = va_arg (args, char *);
if (string_arg)
len += strlen (string_arg);
else
{
/* add enough padding to hold "(null)" identifier */
len += 16;
}
done = TRUE;
break;
case 'd':
case 'i':
case 'o':
case 'u':
case 'x':
case 'X':
#ifdef G_HAVE_GINT64
if (extra_long)
(void) va_arg (args, gint64);
else
#endif /* G_HAVE_GINT64 */
{
if (long_int)
(void) va_arg (args, long);
else
(void) va_arg (args, int);
}
len += extra_long ? 64 : 32;
done = TRUE;
break;
case 'D':
case 'O':
case 'U':
(void) va_arg (args, long);
len += 32;
done = TRUE;
break;
case 'e':
case 'E':
case 'f':
case 'g':
case 'G':
/* parse flags
*/
case '#':
spec.alternate_format = TRUE;
break;
case '0':
spec.zero_padding = TRUE;
break;
case '-':
spec.adjust_left = TRUE;
break;
case ' ':
spec.add_space = TRUE;
break;
case '+':
spec.add_sign = TRUE;
break;
case '\'':
spec.locale_grouping = TRUE;
break;
/* parse output size specifications
*/
case '.':
spec.seen_precision = TRUE;
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
v_uint = c - '0';
c = *format;
while (c >= '0' && c <= '9')
{
format++;
v_uint = v_uint * 10 + c - '0';
c = *format;
}
if (spec.seen_precision)
spec.precision = MAX (spec.precision, v_uint);
else
spec.min_width = MAX (spec.min_width, v_uint);
break;
case '*':
v_int = va_arg (args, int);
if (spec.seen_precision)
{
/* forget about negative precision */
if (v_int >= 0)
spec.precision = MAX (spec.precision, v_int);
}
else
{
if (v_int < 0)
{
v_int = - v_int;
spec.adjust_left = TRUE;
}
spec.min_width = MAX (spec.min_width, v_int);
}
break;
/* parse type modifiers
*/
case 'h':
spec.mod_half = TRUE;
break;
case 'l':
if (!seen_l)
{
spec.mod_long = TRUE;
seen_l = TRUE;
break;
}
/* else, fall through */
case 'L':
case 'q':
spec.mod_long = TRUE;
spec.mod_extra_long = TRUE;
break;
case 'z':
case 'Z':
#if GLIB_SIZEOF_SIZE_T > 4
spec.mod_long = TRUE;
spec.mod_extra_long = TRUE;
#endif /* GLIB_SIZEOF_SIZE_T > 4 */
break;
case 't':
#if GLIB_SIZEOF_PTRDIFF_T > 4
spec.mod_long = TRUE;
spec.mod_extra_long = TRUE;
#endif /* GLIB_SIZEOF_PTRDIFF_T > 4 */
break;
case 'j':
#if GLIB_SIZEOF_INTMAX_T > 4
spec.mod_long = TRUE;
spec.mod_extra_long = TRUE;
#endif /* GLIB_SIZEOF_INTMAX_T > 4 */
break;
/* parse output conversions
*/
case '%':
conv_len += 1;
break;
case 'O':
case 'D':
case 'I':
case 'U':
/* some C libraries feature long variants for these as well? */
spec.mod_long = TRUE;
/* fall through */
case 'o':
conv_len += 2;
/* fall through */
case 'd':
case 'i':
conv_len += 1; /* sign */
/* fall through */
case 'u':
conv_len += 4;
/* fall through */
case 'x':
case 'X':
spec.possible_sign = TRUE;
conv_len += 10;
if (spec.mod_long && honour_longs)
conv_len *= 2;
if (spec.mod_extra_long)
conv_len *= 2;
if (spec.mod_extra_long)
{
#ifdef G_HAVE_GINT64
(void) va_arg (args, gint64);
#else /* !G_HAVE_GINT64 */
(void) va_arg (args, long);
#endif /* !G_HAVE_GINT64 */
}
else if (spec.mod_long)
(void) va_arg (args, long);
else
(void) va_arg (args, int);
break;
case 'A':
case 'a':
/* 0x */
conv_len += 2;
/* fall through */
case 'g':
case 'G':
case 'e':
case 'E':
case 'f':
spec.possible_sign = TRUE;
/* n . dddddddddddddddddddddddd E +- eeee */
conv_len += 1 + 1 + MAX (24, spec.precision) + 1 + 1 + 4;
if (spec.mod_extra_long)
g_warning (G_GNUC_PRETTY_FUNCTION
"(): unable to handle long double, collecting double only");
#ifdef HAVE_LONG_DOUBLE
if (extra_long)
(void) va_arg (args, long double);
else
#endif /* HAVE_LONG_DOUBLE */
(void) va_arg (args, double);
len += extra_long ? 128 : 64;
done = TRUE;
break;
case 'c':
(void) va_arg (args, int);
len += 1;
done = TRUE;
break;
case 'p':
case 'n':
(void) va_arg (args, void*);
len += 32;
done = TRUE;
break;
case '%':
len += 1;
done = TRUE;
break;
default:
/* ignore unknow/invalid flags */
break;
}
}
}
else
len += 1;
}
#error need to implement special handling for long double
#endif
u_double.v_double = va_arg (args, double);
/* %f can expand up to all significant digits before '.' (308) */
if (c == 'f' &&
u_double.mpn.biased_exponent > 0 && u_double.mpn.biased_exponent < 2047)
{
gint exp = u_double.mpn.biased_exponent;
exp -= G_IEEE754_DOUBLE_BIAS;
exp = exp * G_LOG_2_BASE_10 + 1;
conv_len += exp;
}
/* some printf() implementations require extra padding for rounding */
conv_len += 2;
/* we can't really handle locale specific grouping here */
if (spec.locale_grouping)
conv_len *= 2;
break;
case 'C':
spec.mod_long = TRUE;
/* fall through */
case 'c':
conv_len += spec.mod_long ? MB_LEN_MAX : 1;
(void) va_arg (args, int);
break;
case 'S':
spec.mod_long = TRUE;
/* fall through */
case 's':
v_string = va_arg (args, char*);
if (!v_string)
conv_len += 8; /* hold "(null)" */
else if (spec.seen_precision)
conv_len += spec.precision;
else
conv_len += strlen (v_string);
conv_done = TRUE;
if (spec.mod_long)
{
g_warning (G_GNUC_PRETTY_FUNCTION
"(): unable to handle wide char strings");
len += 1024; /* try adding some safety padding */
}
break;
case 'P': /* do we actually need this? */
/* fall through */
case 'p':
spec.alternate_format = TRUE;
conv_len += 10;
if (honour_longs)
conv_len *= 2;
/* fall through */
case 'n':
conv_done = TRUE;
(void) va_arg (args, void*);
break;
case 'm':
/* there's not much we can do to be clever */
v_string = g_strerror (errno);
v_uint = v_string ? strlen (v_string) : 0;
conv_len += MAX (256, v_uint);
break;
/* handle invalid cases
*/
case '\000':
/* no conversion specification, bad bad */
conv_len += format - spec_start;
break;
default:
g_warning (G_GNUC_PRETTY_FUNCTION
"(): unable to handle `%c' while parsing format",
c);
break;
}
conv_done |= conv_len > 0;
}
while (!conv_done);
/* handle width specifications */
conv_len = MAX (conv_len, MAX (spec.precision, spec.min_width));
/* handle flags */
conv_len += spec.alternate_format ? 2 : 0;
conv_len += (spec.add_space || spec.add_sign || spec.possible_sign);
/* finally done */
len += conv_len;
} /* else (c == '%') */
} /* while (*format) */
return len;
}