1 /* Copyright (C) 1989, 1992, 1993, 1994, 1997, 1998, 1999 Aladdin Enterprises. All rights reserved. 2 3 This software is provided AS-IS with no warranty, either express or 4 implied. 5 6 This software is distributed under license and may not be copied, 7 modified or distributed except as expressly authorized under the terms 8 of the license contained in the file LICENSE in this distribution. 9 10 For more information about licensing, please refer to 11 http://www.ghostscript.com/licensing/. For information on 12 commercial licensing, go to http://www.artifex.com/licensing/ or 13 contact Artifex Software, Inc., 101 Lucas Valley Road #110, 14 San Rafael, CA 94903, U.S.A., +1(415)492-9861. 15 */ 16 17 /* $Id: memory_.h,v 1.6 2002/06/16 05:03:12 lpd Exp $ */ 18 /* Generic substitute for Unix memory.h */ 19 20 #ifndef memory__INCLUDED 21 # define memory__INCLUDED 22 23 /* We must include std.h before any file that includes sys/types.h. */ 24 #include "std.h" 25 26 /****** 27 ****** Note: the System V bcmp routine only returns zero or non-zero, 28 ****** unlike memcmp which returns -1, 0, or 1. 29 ******/ 30 31 #ifdef __TURBOC__ 32 /* Define inline functions */ 33 # ifdef __WIN32__ 34 # define memcmp_inline(b1,b2,len) memcmp(b1,b2,len) 35 # else 36 # define memcmp_inline(b1,b2,len) __memcmp__(b1,b2,len) 37 # endif 38 # include <mem.h> 39 #else 40 /* Not Turbo C, no inline functions */ 41 # define memcmp_inline(b1,b2,len) memcmp(b1,b2,len) 42 /* 43 * Apparently the newer VMS compilers include prototypes 44 * for the mem... routines in <string.h>. Unfortunately, 45 * gcc lies on Sun systems: it defines __STDC__ even if 46 * the header files in /usr/include are broken. 47 * However, Solaris systems, which define __svr4__, do have 48 * correct header files. 49 */ 50 /* 51 * The exceptions vastly outnumber the BSD4_2 "rule": 52 * these tests should be the other way around.... 53 */ 54 # if defined(VMS) || defined(_POSIX_SOURCE) || (defined(__STDC__) && (!defined(sun) || defined(__svr4__))) || defined(_HPUX_SOURCE) || defined(__WATCOMC__) || defined(THINK_C) || defined(bsdi) || defined(__FreeBSD) || (defined(_MSC_VER) && _MSC_VER >= 1000) 55 # include <string.h> 56 # else 57 # if defined(BSD4_2) || defined(UTEK) 58 extern bcopy(), bcmp(), bzero(); 59 60 # define memcpy(dest,src,len) bcopy(src,dest,len) 61 # define memcmp(b1,b2,len) bcmp(b1,b2,len) 62 /* Define our own versions of missing routines (in gsmisc.c). */ 63 # define MEMORY__NEED_MEMMOVE 64 # include <sys/types.h> /* for size_t */ 65 # define MEMORY__NEED_MEMSET 66 # if defined(UTEK) 67 # define MEMORY__NEED_MEMCHR 68 # endif /* UTEK */ 69 # else 70 # include <memory.h> 71 # if defined(__SVR3) || defined(sun) /* Not sure this is right.... */ 72 # define MEMORY__NEED_MEMMOVE 73 # include <sys/types.h> /* for size_t */ 74 # endif /* __SVR3 or sun */ 75 # endif /* BSD4_2 or UTEK */ 76 # endif /* VMS, POSIX, ... */ 77 #endif /* !__TURBOC__ */ 78 79 /* 80 * If we are profiling, substitute our own versions of memset, memcpy, 81 * and memmove, in case profiling libraries aren't available. 82 */ 83 #ifdef PROFILE 84 # define MEMORY__NEED_MEMCPY 85 # define MEMORY__NEED_MEMMOVE 86 # define MEMORY__NEED_MEMSET 87 #endif 88 89 /* 90 * Declare substitutes for library procedures we supply. We undef them 91 * first, just in case we are substituting for an existing library facility 92 * that happens to be implemented as a macro. 93 */ 94 #ifdef MEMORY__NEED_MEMMOVE 95 # undef memmove 96 # define memmove(dest,src,len) gs_memmove(dest,src,len) 97 void *gs_memmove(void *, const void *, size_t); 98 #endif 99 #ifdef MEMORY__NEED_MEMCPY 100 # undef memcpy 101 # define memcpy(dest,src,len) gs_memcpy(dest,src,len) 102 void *gs_memcpy(void *, const void *, size_t); 103 #endif 104 #ifdef MEMORY__NEED_MEMSET 105 # undef memset 106 # define memset(dest,ch,len) gs_memset(dest,ch,len) 107 void *gs_memset(void *, int, size_t); 108 #endif 109 #ifdef MEMORY__NEED_MEMCHR 110 # undef memchr 111 # define memchr(ptr,ch,len) gs_memchr(ptr,ch,len) 112 void *gs_memchr(const void *, int, size_t); 113 #endif 114 115 #endif /* memory__INCLUDED */ 116