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/* GNU SED, a batch stream editor.
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* some basic #defines to support pre-ANSI compilers */
#ifndef BASICDEFS_H
#define BASICDEFS_H
/* Can the compiler grok function prototypes? */
#if defined __STDC__ && __STDC__-0
# define P_(s) s
#else
# define P_(s) ()
#endif
/* (VOID *) is the generic pointer type; some ancient compilers
don't know about (void *), and typically use (char *) instead.
VCAST() is used to cast to and from (VOID *)s --- but if the
compiler *does* support (void *) make this a no-op, so that
the compiler can detect if we omitted an essential function
declaration somewhere.
*/
#ifndef VOID
# define VOID void
# define VCAST(t)
#else
# define VCAST(t) (t)
#endif
/* some basic definitions to avoid undue promulgating of VCAST ugliness */
#define MALLOC(n,t) (VCAST(t *)ck_malloc((n)*sizeof(t)))
#define REALLOC(x,n,t) (VCAST(t *)ck_realloc(VCAST(VOID *)(x),(n)*sizeof(t)))
#define MEMDUP(x,n,t) (VCAST(t *)ck_memdup(VCAST(VOID *)(x),(n)*sizeof(t)))
#define FREE(x) (ck_free(VCAST(VOID *)x))
#define MEMCPY(d,s,l) (memcpy(VCAST(VOID *)(d),VCAST(const VOID *)(s),l))
#define MEMMOVE(d,s,l) (memmove(VCAST(VOID *)(d),VCAST(const VOID *)(s),l))
#define OB_MALLOC(o,n,t) (VCAST(t *)obstack_alloc(o,(n)*sizeof(t)))
#define obstack_chunk_alloc ck_malloc
#define obstack_chunk_free ck_free
#ifdef HAVE_MEMORY_H
# include <memory.h>
#endif
#ifndef HAVE_MEMMOVE
# ifndef memmove
/* ../lib/libsed.a provides a memmove() if the system doesn't.
Here is where we declare its return type; we don't prototype
it because that sometimes causes problems when we're running in
bootstrap mode on a system which really does support memmove(). */
extern VOID *memmove();
# endif
#endif
#ifndef HAVE_MEMCPY
# ifndef memcpy
# define memcpy(d, s, n) memmove(d, s, n)
# endif
#endif
#ifndef HAVE_STRERROR
extern char *strerror P_((int e));
#endif
/* handle misdesigned <ctype.h> macros (snarfed from lib/regex.c) */
/* Jim Meyering writes:
"... Some ctype macros are valid only for character codes that
isascii says are ASCII (SGI's IRIX-4.0.5 is one such system --when
using /bin/cc or gcc but without giving an ansi option). So, all
ctype uses should be through macros like ISPRINT... If
STDC_HEADERS is defined, then autoconf has verified that the ctype
macros don't need to be guarded with references to isascii. ...
Defining isascii to 1 should let any compiler worth its salt
eliminate the && through constant folding."
Solaris defines some of these symbols so we must undefine them first. */
#undef ISASCII
#if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
# define ISASCII(c) 1
#else
# define ISASCII(c) isascii(c)
#endif
#ifdef isblank
# define ISBLANK(c) (ISASCII (c) && isblank (c))
#else
# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
#endif
#undef ISPRINT
#define ISPRINT(c) (ISASCII (c) && isprint (c))
#define ISDIGIT(c) (ISASCII (c) && isdigit (c))
#define ISALNUM(c) (ISASCII (c) && isalnum (c))
#define ISALPHA(c) (ISASCII (c) && isalpha (c))
#define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
#define ISLOWER(c) (ISASCII (c) && islower (c))
#define ISPUNCT(c) (ISASCII (c) && ispunct (c))
#define ISSPACE(c) (ISASCII (c) && isspace (c))
#define ISUPPER(c) (ISASCII (c) && isupper (c))
#define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
#endif /*!BASICDEFS_H*/
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