1///////////////////////////////////////////////////////////////////////////////
2//
3/// \file       stream_flags_common.h
4/// \brief      Common stuff for Stream flags coders
5//
6//  Author:     Lasse Collin
7//
8//  This file has been put into the public domain.
9//  You can do whatever you want with this file.
10//
11///////////////////////////////////////////////////////////////////////////////
12
13#ifndef LZMA_STREAM_FLAGS_COMMON_H
14#define LZMA_STREAM_FLAGS_COMMON_H
15
16#include "common.h"
17
18/// Size of the Stream Flags field
19#define LZMA_STREAM_FLAGS_SIZE 2
20
21extern const uint8_t lzma_header_magic[6];
22extern const uint8_t lzma_footer_magic[2];
23
24
25static inline bool
26is_backward_size_valid(const lzma_stream_flags *options)
27{
28	return options->backward_size >= LZMA_BACKWARD_SIZE_MIN
29			&& options->backward_size <= LZMA_BACKWARD_SIZE_MAX
30			&& (options->backward_size & 3) == 0;
31}
32
33#endif
34