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Diffstat (limited to 'base/memory_.h')
| -rw-r--r-- | base/memory_.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/base/memory_.h b/base/memory_.h new file mode 100644 index 00000000..a9a1d829 --- /dev/null +++ b/base/memory_.h @@ -0,0 +1,114 @@ +/* Copyright (C) 2001-2019 Artifex Software, Inc. + All Rights Reserved. + + This software is provided AS-IS with no warranty, either express or + implied. + + This software is distributed under license and may not be copied, + modified or distributed except as expressly authorized under the terms + of the license contained in the file LICENSE in this distribution. + + Refer to licensing information at http://www.artifex.com or contact + Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato, + CA 94945, U.S.A., +1(415)492-9861, for further information. +*/ + + +/* Generic substitute for Unix memory.h */ + +#ifndef memory__INCLUDED +# define memory__INCLUDED + +/* We must include std.h before any file that includes sys/types.h. */ +#include "std.h" + +/****** + ****** Note: the System V bcmp routine only returns zero or non-zero, + ****** unlike memcmp which returns -1, 0, or 1. + ******/ + +#ifdef __TURBOC__ +/* Define inline functions */ +# ifdef __WIN32__ +# define memcmp_inline(b1,b2,len) memcmp(b1,b2,len) +# else +# define memcmp_inline(b1,b2,len) __memcmp__(b1,b2,len) +# endif +# include <mem.h> +#else + /* Not Turbo C, no inline functions */ +# define memcmp_inline(b1,b2,len) memcmp(b1,b2,len) + /* + * Apparently the newer VMS compilers include prototypes + * for the mem... routines in <string.h>. Unfortunately, + * gcc lies on Sun systems: it defines __STDC__ even if + * the header files in /usr/include are broken. + * However, Solaris systems, which define __svr4__, do have + * correct header files. + */ + /* + * The exceptions vastly outnumber the BSD4_2 "rule": + * these tests should be the other way around.... + */ +# 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) +# include <string.h> +# else +# if defined(BSD4_2) || defined(UTEK) +extern bcopy(), bcmp(), bzero(); + +# define memcpy(dest,src,len) bcopy(src,dest,len) +# define memcmp(b1,b2,len) bcmp(b1,b2,len) + /* Define our own versions of missing routines (in gsmisc.c). */ +# define MEMORY__NEED_MEMMOVE +# include <sys/types.h> /* for size_t */ +# define MEMORY__NEED_MEMSET +# if defined(UTEK) +# define MEMORY__NEED_MEMCHR +# endif /* UTEK */ +# else +# include <memory.h> +# if defined(__SVR3) || defined(sun) /* Not sure this is right.... */ +# define MEMORY__NEED_MEMMOVE +# include <sys/types.h> /* for size_t */ +# endif /* __SVR3 or sun */ +# endif /* BSD4_2 or UTEK */ +# endif /* VMS, POSIX, ... */ +#endif /* !__TURBOC__ */ + +/* + * If we are profiling, substitute our own versions of memset, memcpy, + * and memmove, in case profiling libraries aren't available. + */ +#ifdef PROFILE +# define MEMORY__NEED_MEMCPY +# define MEMORY__NEED_MEMMOVE +# define MEMORY__NEED_MEMSET +#endif + +/* + * Declare substitutes for library procedures we supply. We undef them + * first, just in case we are substituting for an existing library facility + * that happens to be implemented as a macro. + */ +#ifdef MEMORY__NEED_MEMMOVE +# undef memmove +# define memmove(dest,src,len) gs_memmove(dest,src,len) +void *gs_memmove(void *, const void *, size_t); +#endif +#ifdef MEMORY__NEED_MEMCPY +# undef memcpy +# define memcpy(dest,src,len) gs_memcpy(dest,src,len) +void *gs_memcpy(void *, const void *, size_t); +#endif +#ifdef MEMORY__NEED_MEMSET +# undef memset +# define memset(dest,ch,len) gs_memset(dest,ch,len) +void *gs_memset(void *, int, size_t); +#endif +#ifdef MEMORY__NEED_MEMCHR +# undef memchr +# define memchr(ptr,ch,len) gs_memchr(ptr,ch,len) +void *gs_memchr(const void *, int, size_t); +#endif + +#endif /* memory__INCLUDED */ |