diff options
Diffstat (limited to 'src/zlib/inftrees.h')
| -rw-r--r-- | src/zlib/inftrees.h | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/src/zlib/inftrees.h b/src/zlib/inftrees.h index baa53a0..b1104c8 100644 --- a/src/zlib/inftrees.h +++ b/src/zlib/inftrees.h @@ -1,5 +1,5 @@ /* inftrees.h -- header to use inftrees.c - * Copyright (C) 1995-2005, 2010 Mark Adler + * Copyright (C) 1995-2005 Mark Adler * For conditions of distribution and use, see copyright notice in zlib.h */ @@ -35,28 +35,21 @@ typedef struct { 01000000 - invalid code */ -/* Maximum size of the dynamic table. The maximum number of code structures is - 1444, which is the sum of 852 for literal/length codes and 592 for distance - codes. These values were found by exhaustive searches using the program - examples/enough.c found in the zlib distribtution. The arguments to that - program are the number of symbols, the initial root table size, and the - maximum bit length of a code. "enough 286 9 15" for literal/length codes - returns returns 852, and "enough 30 6 15" for distance codes returns 592. - The initial root table size (9 or 6) is found in the fifth argument of the - inflate_table() calls in inflate.c and infback.c. If the root table size is - changed, then these maximum sizes would be need to be recalculated and - updated. */ -#define ENOUGH_LENS 852 -#define ENOUGH_DISTS 592 -#define ENOUGH (ENOUGH_LENS+ENOUGH_DISTS) +/* Maximum size of dynamic tree. The maximum found in a long but non- + exhaustive search was 1444 code structures (852 for length/literals + and 592 for distances, the latter actually the result of an + exhaustive search). The true maximum is not known, but the value + below is more than safe. */ +#define ENOUGH 2048 +#define MAXD 592 -/* Type of code to build for inflate_table() */ +/* Type of code to build for inftable() */ typedef enum { CODES, LENS, DISTS } codetype; -int ZLIB_INTERNAL inflate_table OF((codetype type, unsigned short FAR *lens, +extern int inflate_table OF((codetype type, unsigned short FAR *lens, unsigned codes, code FAR * FAR *table, unsigned FAR *bits, unsigned short FAR *work)); |