quake3 / code / jpeg-6 / jinclude.h

 * jinclude.h
 * Copyright (C) 1991-1994, Thomas G. Lane.
 * This file is part of the Independent JPEG Group's software.
 * For conditions of distribution and use, see the accompanying README file.
 * This file exists to provide a single place to fix any problems with
 * including the wrong system include files.  (Common problems are taken
 * care of by the standard jconfig symbols, but on really weird systems
 * you may have to edit this file.)
 * NOTE: this file is NOT intended to be included by applications using the
 * JPEG library.  Most applications need only include jpeglib.h.

#ifdef _WIN32

#pragma warning(disable : 4018)     // signed/unsigned mismatch
#pragma warning(disable : 4032)
#pragma warning(disable : 4051)
#pragma warning(disable : 4057)		// slightly different base types
#pragma warning(disable : 4100)		// unreferenced formal parameter
#pragma warning(disable : 4115)
#pragma warning(disable : 4125)		// decimal digit terminates octal escape sequence
#pragma warning(disable : 4127)		// conditional expression is constant
#pragma warning(disable : 4136)
#pragma warning(disable : 4152)		// nonstandard extension, function/data pointer conversion in expression
#pragma warning(disable : 4201)
#pragma warning(disable : 4214)
#pragma warning(disable : 4244)
#pragma warning(disable : 4305)		// truncation from const double to float
#pragma warning(disable : 4310)		// cast truncates constant value
#pragma warning(disable:  4505) 	// unreferenced local function has been removed
#pragma warning(disable : 4514)
#pragma warning(disable : 4702)		// unreachable code
#pragma warning(disable : 4711)		// selected for automatic inline expansion
#pragma warning(disable : 4220)		// varargs matches remaining parameters
#pragma warning(disable : 4761)		// integral size mismatch 

/* Include auto-config file to find out which system include files we need. */

#include "../jpeg-6/jconfig.h"		/* auto configuration options */
#define JCONFIG_INCLUDED	/* so that jpeglib.h doesn't do it again */

 * We need the NULL macro and size_t typedef.
 * On an ANSI-conforming system it is sufficient to include <stddef.h>.
 * Otherwise, we get them from <stdlib.h> or <stdio.h>; we may have to
 * pull in <sys/types.h> as well.
 * Note that the core JPEG library does not require <stdio.h>;
 * only the default error handler and data source/destination modules do.
 * But we must pull it in because of the references to FILE in jpeglib.h.
 * You can remove those references if you want to compile without <stdio.h>.

#include <stddef.h>

#include <stdlib.h>

#include <sys/types.h>

#include <stdio.h>

 * We need memory copying and zeroing functions, plus strncpy().
 * ANSI and System V implementations declare these in <string.h>.
 * BSD doesn't have the mem() functions, but it does have bcopy()/bzero().
 * Some systems may declare memset and memcpy in <memory.h>.
 * NOTE: we assume the size parameters to these functions are of type size_t.
 * Change the casts in these macros if not!


#include <strings.h>
#define MEMZERO(target,size)	bzero((void *)(target), (size_t)(size))
#define MEMCOPY(dest,src,size)	bcopy((const void *)(src), (void *)(dest), (size_t)(size))

#else /* not BSD, assume ANSI/SysV string lib */

#include <string.h>
#define MEMZERO(target,size)	memset((void *)(target), 0, (size_t)(size))
#define MEMCOPY(dest,src,size)	memcpy((void *)(dest), (const void *)(src), (size_t)(size))


 * In ANSI C, and indeed any rational implementation, size_t is also the
 * type returned by sizeof().  However, it seems there are some irrational
 * implementations out there, in which sizeof() returns an int even though
 * size_t is defined as long or unsigned long.  To ensure consistent results
 * we always use this SIZEOF() macro in place of using sizeof() directly.

#define SIZEOF(object)	((size_t) sizeof(object))

 * The modules that use fread() and fwrite() always invoke them through
 * these macros.  On some systems you may need to twiddle the argument casts.
 * CAUTION: argument order is different from underlying functions!

#define JFREAD(file,buf,sizeofbuf)  \
  ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
#define JFWRITE(file,buf,sizeofbuf)  \
  ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))
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