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Comparing Compress-LZF/lzfP.h (file contents):
Revision 1.7 by root, Tue Nov 13 21:50:54 2007 UTC vs.
Revision 1.8 by root, Tue Jun 1 03:30:34 2010 UTC

… …
91# define INIT_HTAB 0 91# define INIT_HTAB 0
92#endif 92#endif
93 93
94/* 94/*
95 * Avoid assigning values to errno variable? for some embedding purposes 95 * Avoid assigning values to errno variable? for some embedding purposes
96 * (linux kernel for example), this is neccessary. NOTE: this breaks 96 * (linux kernel for example), this is necessary. NOTE: this breaks
97 * the documentation in lzf.h. 97 * the documentation in lzf.h. Avoiding errno has no speed impact.
98 */ 98 */
99#ifndef AVOID_ERRNO 99#ifndef AVOID_ERRNO
100# define AVOID_ERRNO 0 100# define AVOID_ERRNO 0
101#endif 101#endif
102 102
103/* 103/*
104 * Wether to pass the LZF_STATE variable as argument, or allocate it 104 * Whether to pass the LZF_STATE variable as argument, or allocate it
105 * on the stack. For small-stack environments, define this to 1. 105 * on the stack. For small-stack environments, define this to 1.
106 * NOTE: this breaks the prototype in lzf.h. 106 * NOTE: this breaks the prototype in lzf.h.
107 */ 107 */
108#ifndef LZF_STATE_ARG 108#ifndef LZF_STATE_ARG
109# define LZF_STATE_ARG 0 109# define LZF_STATE_ARG 0
110#endif 110#endif
111 111
112/* 112/*
113 * Wether to add extra checks for input validity in lzf_decompress 113 * Whether to add extra checks for input validity in lzf_decompress
114 * and return EINVAL if the input stream has been corrupted. This 114 * and return EINVAL if the input stream has been corrupted. This
115 * only shields against overflowing the input buffer and will not 115 * only shields against overflowing the input buffer and will not
116 * detect most corrupted streams. 116 * detect most corrupted streams.
117 * This check is not normally noticable on modern hardware 117 * This check is not normally noticeable on modern hardware
118 * (<1% slowdown), but might slow down older cpus considerably. 118 * (<1% slowdown), but might slow down older cpus considerably.
119 */ 119 */
120#ifndef CHECK_INPUT 120#ifndef CHECK_INPUT
121# define CHECK_INPUT 1 121# define CHECK_INPUT 1
122#endif 122#endif
123 123
124/*
125 * Whether to store pointers or offsets inside the hash table. On
126 * 64 bit architetcures, pointers take up twice as much space,
127 * and might also be slower. Default is to autodetect.
128 */
129/*#define LZF_USER_OFFSETS autodetect */
130
124/*****************************************************************************/ 131/*****************************************************************************/
125/* nothing should be changed below */ 132/* nothing should be changed below */
126 133
134#ifdef __cplusplus
135# include <cstring>
136# include <climits>
137using namespace std;
138#else
139# include <string.h>
140# include <limits.h>
141#endif
142
143#ifndef LZF_USE_OFFSETS
144# if defined (WIN32)
145# define LZF_USE_OFFSETS defined(_M_X64)
146# else
147# if __cplusplus > 199711L
148# include <cstdint>
149# else
150# include <stdint.h>
151# endif
152# define LZF_USE_OFFSETS (UINTPTR_MAX > 0xffffffffU)
153# endif
154#endif
155
127typedef unsigned char u8; 156typedef unsigned char u8;
128 157
158#if LZF_USE_OFFSETS
159# define LZF_HSLOT_BIAS ((const u8 *)in_data)
160 typedef unsigned int LZF_HSLOT;
161#else
162# define LZF_HSLOT_BIAS 0
163 typedef const u8 *LZF_HSLOT;
164#endif
165
129typedef const u8 *LZF_STATE[1 << (HLOG)]; 166typedef LZF_HSLOT LZF_STATE[1 << (HLOG)];
130 167
131#if !STRICT_ALIGN 168#if !STRICT_ALIGN
132/* for unaligned accesses we need a 16 bit datatype. */ 169/* for unaligned accesses we need a 16 bit datatype. */
133# include <limits.h>
134# if USHRT_MAX == 65535 170# if USHRT_MAX == 65535
135 typedef unsigned short u16; 171 typedef unsigned short u16;
136# elif UINT_MAX == 65535 172# elif UINT_MAX == 65535
137 typedef unsigned int u16; 173 typedef unsigned int u16;
138# else 174# else
… …
140# define STRICT_ALIGN 1 176# define STRICT_ALIGN 1
141# endif 177# endif
142#endif 178#endif
143 179
144#if ULTRA_FAST 180#if ULTRA_FAST
145# if defined(VERY_FAST)
146# undef VERY_FAST 181# undef VERY_FAST
147# endif
148#endif
149
150#if INIT_HTAB
151# ifdef __cplusplus
152# include <cstring>
153# else
154# include <string.h>
155# endif
156#endif 182#endif
157 183
158#endif 184#endif
159 185

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