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Diffstat (limited to 'gnu/lib/libg++/texinfo/info/general.h')
-rw-r--r-- | gnu/lib/libg++/texinfo/info/general.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/gnu/lib/libg++/texinfo/info/general.h b/gnu/lib/libg++/texinfo/info/general.h new file mode 100644 index 00000000000..4b97dc8d8da --- /dev/null +++ b/gnu/lib/libg++/texinfo/info/general.h @@ -0,0 +1,94 @@ +/* general.h -- Some generally useful defines. */ + +/* This file is part of GNU Info, a program for reading online documentation + stored in Info format. + + Copyright (C) 1993 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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + Written by Brian Fox (bfox@ai.mit.edu). */ + +#if !defined (_GENERAL_H_) +#define _GENERAL_H_ + +extern void *xmalloc (), *xrealloc (); + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif /* HAVE_UNISTD_H */ + +#if defined (HAVE_STRING_H) +# include <string.h> +#else +# include <strings.h> +#endif /* !HAVE_STRING_H */ + +#include "clib.h" + +#define info_toupper(x) (islower (x) ? toupper (x) : x) +#define info_tolower(x) (isupper (x) ? tolower (x) : x) + +#if !defined (whitespace) +# define whitespace(c) ((c == ' ') || (c == '\t')) +#endif /* !whitespace */ + +#if !defined (whitespace_or_newline) +# define whitespace_or_newline(c) (whitespace (c) || (c == '\n')) +#endif /* !whitespace_or_newline */ + +#if !defined (__FUNCTION_DEF) +# define __FUNCTION_DEF +typedef int Function (); +typedef void VFunction (); +typedef char *CFunction (); +#endif /* _FUNCTION_DEF */ + +/* Add POINTER to the list of pointers found in ARRAY. SLOTS is the number + of slots that have already been allocated. INDEX is the index into the + array where POINTER should be added. GROW is the number of slots to grow + ARRAY by, in the case that it needs growing. TYPE is a cast of the type + of object stored in ARRAY (e.g., NODE_ENTRY *. */ +#define add_pointer_to_array(pointer, idx, array, slots, grow, type) \ + do { \ + if (idx + 2 >= slots) \ + array = (type *)(xrealloc (array, (slots += grow) * sizeof (type))); \ + array[idx++] = (type)pointer; \ + array[idx] = (type)NULL; \ + } while (0) + +#define maybe_free(x) do { if (x) free (x); } while (0) + +#if !defined (zero_mem) && defined (HAVE_MEMSET) +# define zero_mem(mem, length) memset (mem, 0, length) +#endif /* !zero_mem && HAVE_MEMSET */ + +#if !defined (zero_mem) && defined (HAVE_BZERO) +# define zero_mem(mem, length) bzero (mem, length) +#endif /* !zero_mem && HAVE_BZERO */ + +#if !defined (zero_mem) +# define zero_mem(mem, length) \ + do { \ + register int zi; \ + register unsigned char *place; \ + \ + place = (unsigned char *)mem; \ + for (zi = 0; zi < length; zi++) \ + place[zi] = 0; \ + } while (0) +#endif /* !zero_mem */ + +#endif /* !_GENERAL_H_ */ |