Initial revision

source/blender/blenkernel/BKE_endian.h

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+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ * Are we little or big endian?  From Harbison&Steele.
+ * BKE_ENDIANNESS(a) returns 1 if big endian and returns 0 if little endian
+ */
+#ifndef BKE_ENDIAN_H
+#define BKE_ENDIAN_H
+
+#define BKE_ENDIANNESS(a) {  \
+	union {  \
+		long l;  \
+		char c[sizeof (long)];  \
+	} u;  \
+	u.l = 1;  \
+	a = (u.c[sizeof (long) - 1] == 1) ? 1 : 0;  \
+}
+
+#endif