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-rw-r--r--src/lzo_dict.h43
1 files changed, 18 insertions, 25 deletions
diff --git a/src/lzo_dict.h b/src/lzo_dict.h
index 043a1e2..c3dd52b 100644
--- a/src/lzo_dict.h
+++ b/src/lzo_dict.h
@@ -2,19 +2,7 @@
This file is part of the LZO real-time data compression library.
- Copyright (C) 2008 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2007 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2006 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2005 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2004 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2003 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2002 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2001 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 2000 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1997 Markus Franz Xaver Johannes Oberhumer
- Copyright (C) 1996 Markus Franz Xaver Johannes Oberhumer
+ Copyright (C) 1996-2014 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library is free software; you can redistribute it and/or
@@ -45,7 +33,7 @@
#ifndef __LZO_DICT_H
-#define __LZO_DICT_H
+#define __LZO_DICT_H 1
#ifdef __cplusplus
extern "C" {
@@ -97,10 +85,10 @@ extern "C" {
#if (D_BITS != DL_BITS + DD_BITS)
# error "D_BITS does not match"
#endif
-#if (D_BITS < 8 || D_BITS > 18)
+#if (D_BITS < 6 || D_BITS > 18)
# error "invalid D_BITS"
#endif
-#if (DL_BITS < 8 || DL_BITS > 20)
+#if (DL_BITS < 6 || DL_BITS > 20)
# error "invalid DL_BITS"
#endif
#if (DD_BITS < 0 || DD_BITS > 6)
@@ -169,7 +157,7 @@ extern "C" {
#elif (LZO_HASH == LZO_HASH_GZIP_INCREMENTAL)
/* incremental hash like in gzip/zlib (deflate) */
-# define __LZO_HASH_INCREMENTAL
+# define __LZO_HASH_INCREMENTAL 1
# define DVAL_FIRST(dv,p) dv = _DV_A((p),DL_SHIFT)
# define DVAL_NEXT(dv,p) dv = (((dv) << DL_SHIFT) ^ p[2])
# define _DINDEX(dv,p) (dv)
@@ -177,7 +165,7 @@ extern "C" {
#elif (LZO_HASH == LZO_HASH_LZO_INCREMENTAL_A)
/* incremental LZO hash version A */
-# define __LZO_HASH_INCREMENTAL
+# define __LZO_HASH_INCREMENTAL 1
# define DVAL_FIRST(dv,p) dv = _DV_A((p),5)
# define DVAL_NEXT(dv,p) \
dv ^= (lzo_xint)(p[-1]) << (2*5); dv = (((dv) << 5) ^ p[2])
@@ -186,7 +174,7 @@ extern "C" {
#elif (LZO_HASH == LZO_HASH_LZO_INCREMENTAL_B)
/* incremental LZO hash version B */
-# define __LZO_HASH_INCREMENTAL
+# define __LZO_HASH_INCREMENTAL 1
# define DVAL_FIRST(dv,p) dv = _DV_B((p),5)
# define DVAL_NEXT(dv,p) \
dv ^= p[-1]; dv = (((dv) >> 5) ^ ((lzo_xint)(p[2]) << (2*5)))
@@ -219,7 +207,12 @@ extern "C" {
#if !defined(DVAL_ASSERT)
#if defined(__LZO_HASH_INCREMENTAL) && !defined(NDEBUG)
-static void DVAL_ASSERT(lzo_xint dv, const lzo_bytep p)
+#if (LZO_CC_CLANG || (LZO_CC_GNUC >= 0x020700ul) || LZO_CC_LLVM)
+static void __attribute__((__unused__))
+#else
+static void
+#endif
+DVAL_ASSERT(lzo_xint dv, const lzo_bytep p)
{
lzo_xint df;
DVAL_FIRST(df,(p));
@@ -236,11 +229,11 @@ static void DVAL_ASSERT(lzo_xint dv, const lzo_bytep p)
// dictionary updating
************************************************************************/
-#if defined(LZO_DICT_USE_PTR)
+#if (LZO_DICT_USE_PTR)
# define DENTRY(p,in) (p)
# define GINDEX(m_pos,m_off,dict,dindex,in) m_pos = dict[dindex]
#else
-# define DENTRY(p,in) ((lzo_uint) ((p)-(in)))
+# define DENTRY(p,in) ((lzo_dict_t) pd(p, in))
# define GINDEX(m_pos,m_off,dict,dindex,in) m_off = dict[dindex]
#endif
@@ -267,7 +260,7 @@ static void DVAL_ASSERT(lzo_xint dv, const lzo_bytep p)
// test for a match
************************************************************************/
-#if defined(LZO_DICT_USE_PTR)
+#if (LZO_DICT_USE_PTR)
/* m_pos is either NULL or a valid pointer */
#define LZO_CHECK_MPOS_DET(m_pos,m_off,in,ip,max_offset) \
@@ -278,7 +271,7 @@ static void DVAL_ASSERT(lzo_xint dv, const lzo_bytep p)
(BOUNDS_CHECKING_OFF_IN_EXPR(( \
m_pos = ip - (lzo_uint) PTR_DIFF(ip,m_pos), \
PTR_LT(m_pos,in) || \
- (m_off = (lzo_uint) PTR_DIFF(ip,m_pos)) <= 0 || \
+ (m_off = (lzo_uint) PTR_DIFF(ip,m_pos)) == 0 || \
m_off > max_offset )))
#else
@@ -296,7 +289,7 @@ static void DVAL_ASSERT(lzo_xint dv, const lzo_bytep p)
#endif
-#if defined(LZO_DETERMINISTIC)
+#if (LZO_DETERMINISTIC)
# define LZO_CHECK_MPOS LZO_CHECK_MPOS_DET
#else
# define LZO_CHECK_MPOS LZO_CHECK_MPOS_NON_DET