sysdeps/powerpc/bits/endian.h

   1 /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library 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    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /* PowerPC can be little or big endian.  Hopefully gcc will know...  */
  20
  21 #ifndef _ENDIAN_H
  22 # error "Never use <bits/endian.h> directly; include <endian.h> instead."
  23 #endif
  24
  25 #if defined __BIG_ENDIAN__ || defined _BIG_ENDIAN
  26 # if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
  27 #  error Both BIG_ENDIAN and LITTLE_ENDIAN defined!
  28 # endif
  29 # define __BYTE_ORDER __BIG_ENDIAN
  30 #else
  31 # if defined __LITTLE_ENDIAN__ || defined _LITTLE_ENDIAN
  32 #  define __BYTE_ORDER __LITTLE_ENDIAN
  33 # else
  34 #  warning Cannot determine current byte order, assuming big-endian.
  35 #  define __BYTE_ORDER __BIG_ENDIAN
  36 # endif
  37 #endif