vorbis-tools-1.2.0/intl/printf-args.c

   1 /* Decomposed printf argument list.
   2    Copyright (C) 1999, 2002-2003, 2005-2006 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify it
   5    under the terms of the GNU Library General Public License as published
   6    by the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with this program; if not, write to the Free Software
  16    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17    USA.  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 # include <config.h>
  21 #endif
  22
  23 /* Specification.  */
  24 #include "printf-args.h"
  25
  26 #ifdef STATIC
  27 STATIC
  28 #endif
  29 int
  30 printf_fetchargs (va_list args, arguments *a)
  31 {
  32   size_t i;
  33   argument *ap;
  34
  35   for (i = 0, ap = &a->arg[0]; i < a->count; i++, ap++)
  36     switch (ap->type)
  37       {
  38       case TYPE_SCHAR:
  39         ap->a.a_schar = va_arg (args, /*signed char*/ int);
  40         break;
  41       case TYPE_UCHAR:
  42         ap->a.a_uchar = va_arg (args, /*unsigned char*/ int);
  43         break;
  44       case TYPE_SHORT:
  45         ap->a.a_short = va_arg (args, /*short*/ int);
  46         break;
  47       case TYPE_USHORT:
  48         ap->a.a_ushort = va_arg (args, /*unsigned short*/ int);
  49         break;
  50       case TYPE_INT:
  51         ap->a.a_int = va_arg (args, int);
  52         break;
  53       case TYPE_UINT:
  54         ap->a.a_uint = va_arg (args, unsigned int);
  55         break;
  56       case TYPE_LONGINT:
  57         ap->a.a_longint = va_arg (args, long int);
  58         break;
  59       case TYPE_ULONGINT:
  60         ap->a.a_ulongint = va_arg (args, unsigned long int);
  61         break;
  62 #ifdef HAVE_LONG_LONG
  63       case TYPE_LONGLONGINT:
  64         ap->a.a_longlongint = va_arg (args, long long int);
  65         break;
  66       case TYPE_ULONGLONGINT:
  67         ap->a.a_ulonglongint = va_arg (args, unsigned long long int);
  68         break;
  69 #endif
  70       case TYPE_DOUBLE:
  71         ap->a.a_double = va_arg (args, double);
  72         break;
  73 #ifdef HAVE_LONG_DOUBLE
  74       case TYPE_LONGDOUBLE:
  75         ap->a.a_longdouble = va_arg (args, long double);
  76         break;
  77 #endif
  78       case TYPE_CHAR:
  79         ap->a.a_char = va_arg (args, int);
  80         break;
  81 #ifdef HAVE_WINT_T
  82       case TYPE_WIDE_CHAR:
  83         /* Although ISO C 99 7.24.1.(2) says that wint_t is "unchanged by
  84            default argument promotions", this is not the case in mingw32,
  85            where wint_t is 'unsigned short'.  */
  86         ap->a.a_wide_char =
  87           (sizeof (wint_t) < sizeof (int)
  88            ? va_arg (args, int)
  89            : va_arg (args, wint_t));
  90         break;
  91 #endif
  92       case TYPE_STRING:
  93         ap->a.a_string = va_arg (args, const char *);
  94         /* A null pointer is an invalid argument for "%s", but in practice
  95            it occurs quite frequently in printf statements that produce
  96            debug output.  Use a fallback in this case.  */
  97         if (ap->a.a_string == NULL)
  98           ap->a.a_string = "(NULL)";
  99         break;
 100 #ifdef HAVE_WCHAR_T
 101       case TYPE_WIDE_STRING:
 102         ap->a.a_wide_string = va_arg (args, const wchar_t *);
 103         /* A null pointer is an invalid argument for "%ls", but in practice
 104            it occurs quite frequently in printf statements that produce
 105            debug output.  Use a fallback in this case.  */
 106         if (ap->a.a_wide_string == NULL)
 107           {
 108             static const wchar_t wide_null_string[] =
 109               {
 110                 (wchar_t)'(',
 111                 (wchar_t)'N', (wchar_t)'U', (wchar_t)'L', (wchar_t)'L',
 112                 (wchar_t)')',
 113                 (wchar_t)0
 114               };
 115             ap->a.a_wide_string = wide_null_string;
 116           }
 117         break;
 118 #endif
 119       case TYPE_POINTER:
 120         ap->a.a_pointer = va_arg (args, void *);
 121         break;
 122       case TYPE_COUNT_SCHAR_POINTER:
 123         ap->a.a_count_schar_pointer = va_arg (args, signed char *);
 124         break;
 125       case TYPE_COUNT_SHORT_POINTER:
 126         ap->a.a_count_short_pointer = va_arg (args, short *);
 127         break;
 128       case TYPE_COUNT_INT_POINTER:
 129         ap->a.a_count_int_pointer = va_arg (args, int *);
 130         break;
 131       case TYPE_COUNT_LONGINT_POINTER:
 132         ap->a.a_count_longint_pointer = va_arg (args, long int *);
 133         break;
 134 #ifdef HAVE_LONG_LONG
 135       case TYPE_COUNT_LONGLONGINT_POINTER:
 136         ap->a.a_count_longlongint_pointer = va_arg (args, long long int *);
 137         break;
 138 #endif
 139       default:
 140         /* Unknown type.  */
 141         return -1;
 142       }
 143   return 0;
 144 }