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- /*
- ** USEFUL.H -- various definitions of general interest
- **
- ** $Header: useful.h,v 2.0 89/12/24 00:56:33 eric Exp $
- **
- ** Author:
- ** Eric Allman
- ** University of California, Berkeley
- */
-
- #ifndef _USEFUL_H_
- #define _USEFUL_H_
-
- #include <stdio.h>
-
- /* give a stab at the multiple-language dilemma */
- #ifdef __STDC__
- #define ARGS(x) x
- #define NOARGS (void)
- #define __ANSI_C__
- #else
- #if defined(c_plusplus) || defined(__cplusplus)
- #define ARGS(x) x
- #define NOARGS ()
- #define __ANSI_C__
- #else
- #define ARGS(x) ()
- #define NOARGS ()
- #endif
- #endif
-
- #ifndef VOID
- #ifdef __ANSI_C__
- #define VOID void
- #else
- #define VOID int
- #endif
- #endif
-
- #ifndef TRUE
- #define TRUE 1
- #define FALSE 0
- #endif
-
- #ifndef BOOL
- #define BOOL char
- #endif
-
- #ifndef STATIC
- #ifndef NODEBUG
- #define STATIC
- #else
- #define STATIC static
- #endif
- #endif
-
- #ifndef EXTERN
- #define EXTERN extern
- #endif
-
- #ifndef CONST
- #ifdef __ANSI_C__
- #define CONST const
- #else
- #define CONST
- #endif
- #endif
-
- #ifndef NULL
- #define NULL 0
- #endif
-
- #ifndef CHARNULL
- #define CHARNULL ((char *) NULL)
- #endif
-
- #define FILENULL ((FILE *) NULL)
-
- #ifdef __ANSI_C__
- #define ARBPTR void *
- #else
- #define ARBPTR char *
- #endif
- #define __ (ARBPTR)
- #define ARBNULL (__ NULL)
-
- #ifdef lint
- #define VERSIONID(v)
- #else
- #define VERSIONID(v) static char _Version[] = v;
- #endif
-
- #define BITSET(b, w) (((b) & (w)) != 0)
-
- #ifdef __STDC__
- #include <string.h>
- #else
- extern char *strchr ARGS((char *, char));
- extern char *strrchr ARGS((char *, char));
- #endif
-
- extern ARBPTR ckalloc ARGS((unsigned int));
-
- #define MAXINPUTLINE 200 /* maximum string input line */
- #define MAXWORDLEN 100 /* maximum word (token) length */
-
- #ifndef BSD
- #define bcopy(f,t,l) memcpy(t,f,l)
- #define bcmp(s,t,l) memcmp(s,t,l)
- #endif
-
- #endif /* _USEFUL_H_ */
-