gcc/intl/gettext.h

   1 /* Description of GNU message catalog format: general file layout.
   2    Copyright (C) 1995, 1997, 2000, 2001 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17    USA.  */
  18
  19 #ifndef _GETTEXT_H
  20 #define _GETTEXT_H 1
  21
  22 #if HAVE_LIMITS_H || _LIBC
  23 # include <limits.h>
  24 #endif
  25
  26 /* @@ end of prolog @@ */
  27
  28 /* The magic number of the GNU message catalog format.  */
  29 #define _MAGIC 0x950412de
  30 #define _MAGIC_SWAPPED 0xde120495
  31
  32 /* Revision number of the currently used .mo (binary) file format.  */
  33 #define MO_REVISION_NUMBER 0
  34
  35 /* The following contortions are an attempt to use the C preprocessor
  36    to determine an unsigned integral type that is 32 bits wide.  An
  37    alternative approach is to use autoconf's AC_CHECK_SIZEOF macro, but
  38    as of version autoconf-2.13, the AC_CHECK_SIZEOF macro doesn't work
  39    when cross-compiling.  We use the maximum values for signed ints
  40    for the test to avoid using U suffixes.  */
  41
  42 #define INT_MAX_32_BITS 2147483647
  43
  44 /* If INT_MAX isn't defined, assume it's a 32-bit type.
  45    This should be valid for all systems GNU cares about because
  46    that doesn't include 16-bit systems, and only modern systems
  47    (that certainly have <limits.h>) have 64+-bit integral types.  */
  48
  49 #ifndef INT_MAX
  50 # define INT_MAX UINT_MAX_32_BITS
  51 #endif
  52
  53 #if INT_MAX == INT_MAX_32_BITS
  54 typedef unsigned int nls_uint32;
  55 #else
  56 # if SHRT_MAX == INT_MAX_32_BITS
  57 typedef unsigned short nls_uint32;
  58 # else
  59 #  if LONG_MAX == INT_MAX_32_BITS
  60 typedef unsigned long nls_uint32;
  61 #  else
  62   /* The following line is intended to throw an error.  Using #error is
  63      not portable enough.  */
  64   "Cannot determine unsigned 32-bit data type."
  65 #  endif
  66 # endif
  67 #endif
  68
  69
  70 /* Header for binary .mo file format.  */
  71 struct mo_file_header
  72 {
  73   /* The magic number.  */
  74   nls_uint32 magic;
  75   /* The revision number of the file format.  */
  76   nls_uint32 revision;
  77   /* The number of strings pairs.  */
  78   nls_uint32 nstrings;
  79   /* Offset of table with start offsets of original strings.  */
  80   nls_uint32 orig_tab_offset;
  81   /* Offset of table with start offsets of translation strings.  */
  82   nls_uint32 trans_tab_offset;
  83   /* Size of hashing table.  */
  84   nls_uint32 hash_tab_size;
  85   /* Offset of first hashing entry.  */
  86   nls_uint32 hash_tab_offset;
  87 };
  88
  89 struct string_desc
  90 {
  91   /* Length of addressed string.  */
  92   nls_uint32 length;
  93   /* Offset of string in file.  */
  94   nls_uint32 offset;
  95 };
  96
  97 /* @@ begin of epilog @@ */
  98
  99 #endif  /* gettext.h  */