/* Determine the "endianness" of the CPU. Copyright (C) 1991, 1992 Free Software Foundation, Inc. Contributed by Torbjorn Granlund (tege@sics.se). The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include main () { unsigned long int i; if (sizeof (i) != 4) puts ("#error \"Not a 32-bit machine!\""); i = (((((('4' << 8) + '3') << 8) + '2') << 8) + '1'); printf ("#define __BYTE_ORDER %.4s\n", (char *) &i); exit (0); }