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OS/2 Shareware BBS: 35 Internet
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fingercl.zip
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general.h
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1997-08-29
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/* general.h -- Generally useful macros and defines. */
/* Copyright (C) 1988, 1990, 1992 Free Software Foundation, Inc.
This file is part of GNU Finger.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#if !defined (_GENERAL_H_)
#define _GENERAL_H_
/* An 8-bit byte. */
#ifndef byte
#define byte unsigned char
#endif
/* So I can say (Function *)foo; */
typedef int Function ();
/* Like malloc () and realloc (), but abort if out of memory. */
void *xmalloc (), *xrealloc ();
/* Wrapper for gethostname() */
char *xgethostname (), *getservhost(), *getforwardhost();
/* Macro returns non-zero if C is a Tab, Space or Newline. */
#define whitespace(c) ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) == '\r')
/* Macro returns non-zero if C is a digit character. */
#define digit(c) ((c) >= '0' && (c) <= '9')
#define lowercase_p(c) (((c) > ('a' - 1) && (c) < ('z' + 1)))
#define uppercase_p(c) (((c) > ('A' - 1) && (c) < ('Z' + 1)))
#define pure_alphabetic(c) (lowercase_p(c) || uppercase_p(c))
#ifndef to_upper
#define to_upper(c) (lowercase_p(c) ? ((c) - 32) : (c))
#define to_lower(c) (uppercase_p(c) ? ((c) + 32) : (c))
#endif
#define label_character(c) \
(whitespace (c) || pure_alphabetic (c) || index ("-_,/", (c)))
#ifndef savestring
#define savestring(s) (char *)strcpy ((char *) xmalloc (1 + strlen (s)), (s))
#endif
#include <config.h>
#endif /* _GENERAL_H_ */