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/*
* HT Editor
* tools.h
*
* Copyright (C) 1999-2002 Sebastian Biallas (sb@biallas.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __TOOLS_H__
#define __TOOLS_H__
#include <stdlib.h>
#include <string.h>
#include "io/types.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define UNALIGNED_MOVE(a, b) memcpy(&(a), &(b), sizeof(a))
#define UNALIGNED_MOVE_CONST(a, b, type) {assert(sizeof(a)==sizeof(type));type c = b;memcpy(&(a), &c, sizeof(a));}
uint32 delinearize(uint32 d);
uint64 delinearize64(uint64 d);
int *random_permutation(int max);
double calc_entropy(byte *buf, int size);
int calc_entropy2(byte *buf, int size);
#define OUT_OF_MEMORY_FAIL 0
#define OUT_OF_MEMORY_IGNORE 1
#define OUT_OF_MEMORY_RETRY 2
extern int (*out_of_memory_func)(int size);
int out_of_memory(int size);
// savety mallocs
void *smalloc(size_t size);
void *smalloc0(size_t size);
#endif /* __TOOLS_H__ */
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