jinclude.h (4478B)
1 /* 2 * jinclude.h 3 * 4 * Copyright (C) 1991-1994, Thomas G. Lane. 5 * This file is part of the Independent JPEG Group's software. 6 * For conditions of distribution and use, see the accompanying README file. 7 * 8 * This file exists to provide a single place to fix any problems with 9 * including the wrong system include files. (Common problems are taken 10 * care of by the standard jconfig symbols, but on really weird systems 11 * you may have to edit this file.) 12 * 13 * NOTE: this file is NOT intended to be included by applications using the 14 * JPEG library. Most applications need only include jpeglib.h. 15 */ 16 17 18 #ifdef _WIN32 19 20 #pragma warning(disable : 4018) // signed/unsigned mismatch 21 #pragma warning(disable : 4032) 22 #pragma warning(disable : 4051) 23 #pragma warning(disable : 4057) // slightly different base types 24 #pragma warning(disable : 4100) // unreferenced formal parameter 25 #pragma warning(disable : 4115) 26 #pragma warning(disable : 4125) // decimal digit terminates octal escape sequence 27 #pragma warning(disable : 4127) // conditional expression is constant 28 #pragma warning(disable : 4136) 29 #pragma warning(disable : 4152) // nonstandard extension, function/data pointer conversion in expression 30 #pragma warning(disable : 4201) 31 #pragma warning(disable : 4214) 32 #pragma warning(disable : 4244) 33 #pragma warning(disable : 4305) // truncation from const double to float 34 #pragma warning(disable : 4310) // cast truncates constant value 35 #pragma warning(disable: 4505) // unreferenced local function has been removed 36 #pragma warning(disable : 4514) 37 #pragma warning(disable : 4702) // unreachable code 38 #pragma warning(disable : 4711) // selected for automatic inline expansion 39 #pragma warning(disable : 4220) // varargs matches remaining parameters 40 #pragma warning(disable : 4761) // integral size mismatch 41 #endif 42 43 /* Include auto-config file to find out which system include files we need. */ 44 45 #include "../jpeg-6/jconfig.h" /* auto configuration options */ 46 #define JCONFIG_INCLUDED /* so that jpeglib.h doesn't do it again */ 47 48 /* 49 * We need the NULL macro and size_t typedef. 50 * On an ANSI-conforming system it is sufficient to include <stddef.h>. 51 * Otherwise, we get them from <stdlib.h> or <stdio.h>; we may have to 52 * pull in <sys/types.h> as well. 53 * Note that the core JPEG library does not require <stdio.h>; 54 * only the default error handler and data source/destination modules do. 55 * But we must pull it in because of the references to FILE in jpeglib.h. 56 * You can remove those references if you want to compile without <stdio.h>. 57 */ 58 59 #ifdef HAVE_STDDEF_H 60 #include <stddef.h> 61 #endif 62 63 #ifdef HAVE_STDLIB_H 64 #include <stdlib.h> 65 #endif 66 67 #ifdef NEED_SYS_TYPES_H 68 #include <sys/types.h> 69 #endif 70 71 #include <stdio.h> 72 73 /* 74 * We need memory copying and zeroing functions, plus strncpy(). 75 * ANSI and System V implementations declare these in <string.h>. 76 * BSD doesn't have the mem() functions, but it does have bcopy()/bzero(). 77 * Some systems may declare memset and memcpy in <memory.h>. 78 * 79 * NOTE: we assume the size parameters to these functions are of type size_t. 80 * Change the casts in these macros if not! 81 */ 82 83 #ifdef NEED_BSD_STRINGS 84 85 #include <strings.h> 86 #define MEMZERO(target,size) bzero((void *)(target), (size_t)(size)) 87 #define MEMCOPY(dest,src,size) bcopy((const void *)(src), (void *)(dest), (size_t)(size)) 88 89 #else /* not BSD, assume ANSI/SysV string lib */ 90 91 #include <string.h> 92 #define MEMZERO(target,size) memset((void *)(target), 0, (size_t)(size)) 93 #define MEMCOPY(dest,src,size) memcpy((void *)(dest), (const void *)(src), (size_t)(size)) 94 95 #endif 96 97 /* 98 * In ANSI C, and indeed any rational implementation, size_t is also the 99 * type returned by sizeof(). However, it seems there are some irrational 100 * implementations out there, in which sizeof() returns an int even though 101 * size_t is defined as long or unsigned long. To ensure consistent results 102 * we always use this SIZEOF() macro in place of using sizeof() directly. 103 */ 104 105 #define SIZEOF(object) ((size_t) sizeof(object)) 106 107 /* 108 * The modules that use fread() and fwrite() always invoke them through 109 * these macros. On some systems you may need to twiddle the argument casts. 110 * CAUTION: argument order is different from underlying functions! 111 */ 112 113 #define JFREAD(file,buf,sizeofbuf) \ 114 ((size_t) fread((void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file))) 115 #define JFWRITE(file,buf,sizeofbuf) \ 116 ((size_t) fwrite((const void *) (buf), (size_t) 1, (size_t) (sizeofbuf), (file)))