/**
 * $Id$
 *
 * ***** 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 *****
 */

#ifndef UTIL_H
#define UTIL_H

#include <sys/types.h>
#include <stdlib.h>
#include <string.h>

#ifndef	NULL
#define NULL			0
#endif

#ifndef	FALSE
#define FALSE			0
#endif

#ifndef	TRUE
#define TRUE			1
#endif

#ifndef ulong
#define ulong unsigned long
#endif

#ifndef ushort
#define ushort unsigned short
#endif

#ifndef uchar
#define uchar unsigned char
#endif

#ifndef uint
#define uint unsigned int
#endif

#define MIN2(x,y)		( (x)<(y) ? (x) : (y) )
#define MIN3(x,y,z)		MIN2( MIN2((x),(y)) , (z) )
#define MIN4(x,y,z,a)		MIN2( MIN2((x),(y)) , MIN2((z),(a)) )

#define MAX2(x,y)		( (x)>(y) ? (x) : (y) )
#define MAX3(x,y,z)		MAX2( MAX2((x),(y)) , (z) )
#define MAX4(x,y,z,a)		MAX2( MAX2((x),(y)) , MAX2((z),(a)) )

#define SWAP(type, a, b)	{ type sw_ap; sw_ap=(a); (a)=(b); (b)=sw_ap; }

#ifndef ABS
#define ABS(x)	((x) < 0 ? -(x) : (x))
#endif

#ifndef CLAMP
#define CLAMP(val, low, high) ((val>high)?high:((val<low)?low:val))
#endif

#define PRINT(d, var1)	printf(# var1 ":%" # d "\n", var1)
#define PRINT2(d, e, var1, var2)	printf(# var1 ":%" # d " " # var2 ":%" # e "\n", var1, var2)
#define PRINT3(d, e, f, var1, var2, var3)	printf(# var1 ":%" # d " " # var2 ":%" # e " " # var3 ":%" # f "\n", var1, var2, var3)
#define PRINT4(d, e, f, g, var1, var2, var3, var4)	printf(# var1 ":%" # d " " # var2 ":%" # e " " # var3 ":%" # f " " # var4 ":%" # g "\n", var1, var2, var3, var4)

extern          void *mallocN(int len, char *str);
extern          void *callocN(int len, char *str);
extern          short freeN(void *vmemh);   

#endif /* UTIL_H */