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Geant4/externals/zlib/include/zutil.h

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  1 /* zutil.h -- internal interface and configuration of the compression library
  2  * Copyright (C) 1995-2022 Jean-loup Gailly, Mark Adler
  3  * For conditions of distribution and use, see copyright notice in zlib.h
  4  */
  5 
  6 /* WARNING: this file should *not* be used by applications. It is
  7    part of the implementation of the compression library and is
  8    subject to change. Applications should only use zlib.h.
  9  */
 10 
 11 /* @(#) $Id$ */
 12 
 13 #ifndef ZUTIL_H
 14 #define ZUTIL_H
 15 
 16 #ifdef HAVE_HIDDEN
 17 #  define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
 18 #else
 19 #  define ZLIB_INTERNAL
 20 #endif
 21 
 22 #include "zlib.h"
 23 
 24 #if defined(STDC) && !defined(Z_SOLO)
 25 #  if !(defined(_WIN32_WCE) && defined(_MSC_VER))
 26 #    include <stddef.h>
 27 #  endif
 28 #  include <string.h>
 29 #  include <stdlib.h>
 30 #endif
 31 
 32 #ifndef local
 33 #  define local static
 34 #endif
 35 /* since "static" is used to mean two completely different things in C, we
 36    define "local" for the non-static meaning of "static", for readability
 37    (compile with -Dlocal if your debugger can't find static symbols) */
 38 
 39 typedef unsigned char  uch;
 40 typedef uch FAR uchf;
 41 typedef unsigned short ush;
 42 typedef ush FAR ushf;
 43 typedef unsigned long  ulg;
 44 
 45 #if !defined(Z_U8) && !defined(Z_SOLO) && defined(STDC)
 46 #  include <limits.h>
 47 #  if (ULONG_MAX == 0xffffffffffffffff)
 48 #    define Z_U8 unsigned long
 49 #  elif (ULLONG_MAX == 0xffffffffffffffff)
 50 #    define Z_U8 unsigned long long
 51 #  elif (UINT_MAX == 0xffffffffffffffff)
 52 #    define Z_U8 unsigned
 53 #  endif
 54 #endif
 55 
 56 extern z_const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
 57 /* (size given to avoid silly warnings with Visual C++) */
 58 
 59 #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
 60 
 61 #define ERR_RETURN(strm,err) \
 62   return (strm->msg = ERR_MSG(err), (err))
 63 /* To be used only when the state is known to be valid */
 64 
 65         /* common constants */
 66 
 67 #ifndef DEF_WBITS
 68 #  define DEF_WBITS MAX_WBITS
 69 #endif
 70 /* default windowBits for decompression. MAX_WBITS is for compression only */
 71 
 72 #if MAX_MEM_LEVEL >= 8
 73 #  define DEF_MEM_LEVEL 8
 74 #else
 75 #  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
 76 #endif
 77 /* default memLevel */
 78 
 79 #define STORED_BLOCK 0
 80 #define STATIC_TREES 1
 81 #define DYN_TREES    2
 82 /* The three kinds of block type */
 83 
 84 #define MIN_MATCH  3
 85 #define MAX_MATCH  258
 86 /* The minimum and maximum match lengths */
 87 
 88 #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
 89 
 90         /* target dependencies */
 91 
 92 #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
 93 #  define OS_CODE  0x00
 94 #  ifndef Z_SOLO
 95 #    if defined(__TURBOC__) || defined(__BORLANDC__)
 96 #      if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
 97          /* Allow compilation with ANSI keywords only enabled */
 98          void _Cdecl farfree( void *block );
 99          void *_Cdecl farmalloc( unsigned long nbytes );
100 #      else
101 #        include <alloc.h>
102 #      endif
103 #    else /* MSC or DJGPP */
104 #      include <malloc.h>
105 #    endif
106 #  endif
107 #endif
108 
109 #ifdef AMIGA
110 #  define OS_CODE  1
111 #endif
112 
113 #if defined(VAXC) || defined(VMS)
114 #  define OS_CODE  2
115 #  define F_OPEN(name, mode) \
116      fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
117 #endif
118 
119 #ifdef __370__
120 #  if __TARGET_LIB__ < 0x20000000
121 #    define OS_CODE 4
122 #  elif __TARGET_LIB__ < 0x40000000
123 #    define OS_CODE 11
124 #  else
125 #    define OS_CODE 8
126 #  endif
127 #endif
128 
129 #if defined(ATARI) || defined(atarist)
130 #  define OS_CODE  5
131 #endif
132 
133 #ifdef OS2
134 #  define OS_CODE  6
135 #  if defined(M_I86) && !defined(Z_SOLO)
136 #    include <malloc.h>
137 #  endif
138 #endif
139 
140 #if defined(MACOS) || defined(TARGET_OS_MAC)
141 #  define OS_CODE  7
142 #  ifndef Z_SOLO
143 #    if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
144 #      include <unix.h> /* for fdopen */
145 #    else
146 #      ifndef fdopen
147 #        define fdopen(fd,mode) NULL /* No fdopen() */
148 #      endif
149 #    endif
150 #  endif
151 #endif
152 
153 #ifdef __acorn
154 #  define OS_CODE 13
155 #endif
156 
157 #if defined(WIN32) && !defined(__CYGWIN__)
158 #  define OS_CODE  10
159 #endif
160 
161 #ifdef _BEOS_
162 #  define OS_CODE  16
163 #endif
164 
165 #ifdef __TOS_OS400__
166 #  define OS_CODE 18
167 #endif
168 
169 #ifdef __APPLE__
170 #  define OS_CODE 19
171 #endif
172 
173 #if defined(_BEOS_) || defined(RISCOS)
174 #  define fdopen(fd,mode) NULL /* No fdopen() */
175 #endif
176 
177 #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
178 #  if defined(_WIN32_WCE)
179 #    define fdopen(fd,mode) NULL /* No fdopen() */
180 #  else
181 #    define fdopen(fd,type)  _fdopen(fd,type)
182 #  endif
183 #endif
184 
185 #if defined(__BORLANDC__) && !defined(MSDOS)
186   #pragma warn -8004
187   #pragma warn -8008
188   #pragma warn -8066
189 #endif
190 
191 /* provide prototypes for these when building zlib without LFS */
192 #if !defined(_WIN32) && \
193     (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
194     ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
195     ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
196     ZEXTERN uLong ZEXPORT crc32_combine_gen64 OF((z_off_t));
197 #endif
198 
199         /* common defaults */
200 
201 #ifndef OS_CODE
202 #  define OS_CODE  3     /* assume Unix */
203 #endif
204 
205 #ifndef F_OPEN
206 #  define F_OPEN(name, mode) fopen((name), (mode))
207 #endif
208 
209          /* functions */
210 
211 #if defined(pyr) || defined(Z_SOLO)
212 #  define NO_MEMCPY
213 #endif
214 #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
215  /* Use our own functions for small and medium model with MSC <= 5.0.
216   * You may have to use the same strategy for Borland C (untested).
217   * The __SC__ check is for Symantec.
218   */
219 #  define NO_MEMCPY
220 #endif
221 #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
222 #  define HAVE_MEMCPY
223 #endif
224 #ifdef HAVE_MEMCPY
225 #  ifdef SMALL_MEDIUM /* MSDOS small or medium model */
226 #    define zmemcpy _fmemcpy
227 #    define zmemcmp _fmemcmp
228 #    define zmemzero(dest, len) _fmemset(dest, 0, len)
229 #  else
230 #    define zmemcpy memcpy
231 #    define zmemcmp memcmp
232 #    define zmemzero(dest, len) memset(dest, 0, len)
233 #  endif
234 #else
235    void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
236    int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
237    void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
238 #endif
239 
240 /* Diagnostic functions */
241 #ifdef ZLIB_DEBUG
242 #  include <stdio.h>
243    extern int ZLIB_INTERNAL z_verbose;
244    extern void ZLIB_INTERNAL z_error OF((char *m));
245 #  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
246 #  define Trace(x) {if (z_verbose>=0) fprintf x ;}
247 #  define Tracev(x) {if (z_verbose>0) fprintf x ;}
248 #  define Tracevv(x) {if (z_verbose>1) fprintf x ;}
249 #  define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
250 #  define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
251 #else
252 #  define Assert(cond,msg)
253 #  define Trace(x)
254 #  define Tracev(x)
255 #  define Tracevv(x)
256 #  define Tracec(c,x)
257 #  define Tracecv(c,x)
258 #endif
259 
260 #ifndef Z_SOLO
261    voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
262                                     unsigned size));
263    void ZLIB_INTERNAL zcfree  OF((voidpf opaque, voidpf ptr));
264 #endif
265 
266 #define ZALLOC(strm, items, size) \
267            (*((strm)->zalloc))((strm)->opaque, (items), (size))
268 #define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
269 #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
270 
271 /* Reverse the bytes in a 32-bit value */
272 #define ZSWAP32(q) ((((q) >> 24) & 0xff) + (((q) >> 8) & 0xff00) + \
273                     (((q) & 0xff00) << 8) + (((q) & 0xff) << 24))
274 
275 #endif /* ZUTIL_H */
276