/************************************************************************* ** ^FILE: useful.h - various definitions of general interest ** ** ^DESCRIPTION: ** This file #defines several macros that are either of very general ** use, or that assist in writing portable programs between various ** systems and/or compilers. ** ** ^HISTORY: ** --/--/-- Brad Appleton ** - Added OS specific #defines for unix, SYSV, BSD, etc ... ** - Added structured block comments ** - Added varargs/stdarg macros ** - Added BSET, BCLEAR, BTEST macros for handling bitmasks ** - #defined EXTERN to be extern "C" for C++ ** - Added #defines for STDIN, STDOUT, and STDERR file descriptors ** ** --/--/-- Peter da Silva ** ** --/--/-- Eric P. Allman Created ***^^**********************************************************************/ /* $Header: useful.h,v 2.0 89/12/24 00:56:33 eric Exp $ */ #ifndef _USEFUL_H_ #define _USEFUL_H_ #if (defined(_unix) || defined(__unix) || defined(_unix_) || defined(__unix__)) # ifndef unix # define unix # endif #endif /* _unix */ #if (defined(_UNIX) || defined(__UNIX) || defined(_UNIX_) || defined(__UNIX__)) # ifndef unix # define unix # endif #endif /* _UNIX */ /* give a stab at the dual Unix universe dilemma (UCB vs AT&T) */ #ifdef unix # if ( defined(_BSD) && !defined(BSD) ) # define BSD # endif # if ( defined(_SYSV) && !defined(SYSV) ) # define SYSV # endif # ifndef BSD # ifdef sun # define BSD # endif # if ( defined(apollo) || defined(aegis) ) # define BSD # endif # if ( defined(_CX_UX) && defined(ucb_universe) ) # define BSD # endif # if ( defined(VAX_BSD) || defined(ULTRIX) || defined(ultrix) ) # define BSD # endif # if ( defined(DYNIX) || defined(dynix) ) # define BSD # endif # if ( defined(UTX) || defined(utx) ) # define BSD # endif # endif /* !BSD */ # ifndef SYSV # ifdef mips # define SYSV # endif # ifdef DGUX # define SYSV # endif # if ( defined(_CX_UX) && defined(att_universe) ) # define SYSV # endif # if ( defined(hpux) || defined(HPUX) ) # define SYSV # endif # if ( defined(irix) || defined(IRIX) ) # define SYSV # endif # if ( defined(aix) || defined(AIX) ) # define SYSV # endif # endif /* !SYSV */ #endif /* unix */ #ifndef MSDOS # if (defined(_MSDOS_)||defined(__MSDOS__)||defined(_MSDOS)||defined(__MSDOS)) # define MSDOS # endif #endif #ifndef OS2 # if ( defined(_OS2_) || defined(__OS2__) || defined(_OS2) || defined(__OS2) ) # define OS2 # endif #endif #ifndef AmigaDOS # if ( defined(AMIGA) || defined(MANX) || defined(AZTEC) ) # define AmigaDOS # endif #endif /* AmigaDOS */ #ifdef __STDC__ # include # include #endif #if ( !defined(__STDC__) && defined(vms) ) # include #endif #ifndef FILE # include #endif #ifndef STDIN # define STDIN 0 # define STDOUT 1 # define STDERR 2 #endif /* macros to portably convert character case */ #define TOUPPER(c) ( islower(c) ) ? toupper(c) : (c) #define TOLOWER(c) ( isupper(c) ) ? tolower(c) : (c) /* 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 /* give a stab at the variable arguments dilemma --BDA */ #ifdef __STDC__ # ifndef va_arg # include # endif # define VA_START(ap,last) va_start(ap, last) # define VA_ARG(ap,type) va_arg(ap, type) # define VA_END(ap) va_end(ap) #else # ifndef va_arg # include # endif # define VA_START(ap,last) va_start(ap) # define VA_ARG(ap,type) va_arg(ap, type) # define VA_END(ap) va_end(ap) #endif #ifndef VOID # if ( defined(__ANSI_C__) || !defined(NOVOID) ) # define VOID void # else # define VOID int # endif #endif #ifndef TRUE # define TRUE 1 # define FALSE 0 #endif #ifndef STATIC # ifndef NODEBUG # define STATIC # else # define STATIC static # endif #endif #ifndef EXTERN # if defined(c_plusplus) || defined(__cplusplus) # define EXTERN extern "C" # else # define EXTERN extern # endif #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 #ifndef FILENULL # define FILENULL ((FILE *) NULL) #endif #if ( defined(__ANSI_C__) || defined(vms) ) typedef void *ARBPTR; #else typedef char *ARBPTR; #endif #define __ (ARBPTR) #define ARBNULL (__ NULL) #ifndef BOOL typedef char BOOL; #endif #ifdef lint # define VERSIONID(v) #else # define VERSIONID(v) static char _Version[] = v #endif /* keep BITSET for compatibilty ** but use BSET, BCLEAR, etc... instead --BDA */ #define BITSET(bstr,mask) ( ((bstr) & (mask)) != 0 ) #define BTEST(bstr,mask) ( ((bstr) & (mask)) != 0 ) #define BSET(bstr,mask) (bstr) |= (mask) #define BCLEAR(bstr,mask) (bstr) &= ~(mask) #ifndef __STRING_H # define __STRING_H EXTERN char *strcat ARGS(( char *, const char * )); EXTERN char *strncat ARGS(( char *, const char *, int )); EXTERN int strcmp ARGS(( const char *, const char * )); EXTERN int strncmp ARGS(( const char *, const char *, int )); EXTERN char *strcpy ARGS(( char *, const char * )); EXTERN char *strncpy ARGS(( char *, const char *, int )); EXTERN int strlen ARGS(( const char * )); # ifndef BSD # define index(s,c) strchr(s,c) # define rindex(s,c) strrchr(s,c) EXTERN char *strchr ARGS(( const char *, int )); EXTERN char *strrchr ARGS(( const char *, int )); EXTERN char *strpbrk ARGS(( const char *, const char * )); EXTERN int strspn ARGS(( const char *, const char * )); EXTERN int strcspn ARGS(( const char *, const char * )); EXTERN char *strtok ARGS(( char *, const char * )); # else # define strchr(s,c) index(s,c) # define strrchr(s,c) rindex(s,c) EXTERN char *index ARGS(( const char *, int )); EXTERN char *rindex ARGS(( const char *, int )); # endif /* !BSD */ # ifndef BSD # define bcmp(b1,b2,n) memcmp(b1,b2,n) # define bcopy(b1,b2,n) memcpy(b2,b1,n) # define bzero(b,n) memset(b,'\0',n) # ifndef __MEMORY_H # define __MEMORY_H EXTERN ARBPTR memccpy ARGS(( ARBPTR, const ARBPTR, int, int )); EXTERN ARBPTR memchr ARGS(( ARBPTR, int, int )); EXTERN int memcmp ARGS(( const ARBPTR, const ARBPTR, int )); EXTERN ARBPTR memcpy ARGS(( ARBPTR, const ARBPTR, int )); EXTERN ARBPTR memmove ARGS(( ARBPTR, const ARBPTR, int )); EXTERN ARBPTR memset ARGS(( ARBPTR, int, int )); # endif /* __MEMORY_H */ # else # define memcmp(b1,b2,n) bcmp(b1,b2,n) # define memcpy(b1,b2,n) bcopy(b2,b1,n) # ifndef __BSTRING_H # define __BSTRING_H EXTERN VOID bcopy ARGS(( const ARBPTR, ARBPTR, int )); EXTERN int bcmp ARGS(( const ARBPTR, const ARBPTR, int )); EXTERN VOID bzero ARGS(( ARBPTR, int )); EXTERN int ffs ARGS(( int )); # endif /* __BSTRING_H */ # endif /* !BSD */ #endif /* __STRING_H */ #if ( !defined(__ANSI_C__) && !defined(_SIZE_T_DEFINED) ) # if (defined(sun) && defined(BSD)) # include # if (!defined (__sys_stdtypes_h) && !defined(_TYPES_)) /* size_t is also defined in in SunOS 4.1 ** and int in SunOS 4.0.3 */ typedef int size_t; # endif # define _SIZE_T_DEFINED 1 # endif /* sun */ # if (defined(vms) && defined(__STDDEF_LOADED)) # define _SIZE_T_DEFINED 1 # endif /* vms */ # ifndef _SIZE_T_DEFINED typedef unsigned int size_t; # define _SIZE_T_DEFINED 1 # endif /* !_SIZE_T_DEFINED */ #endif #if ( !defined(__malloc_h) && !defined(__MALLOC_H) && !defined(vms) ) # include #else EXTERN ARBPTR malloc ARGS(( size_t )); EXTERN ARBPTR realloc ARGS(( ARBPTR, size_t )); EXTERN VOID free ARGS(( ARBPTR )); #endif /*__malloc_h*/ EXTERN ARBPTR ckalloc ARGS(( size_t )); EXTERN VOID exit ARGS(( int )); #define MAXINPUTLINE 200 /* maximum string input line */ #define MAXWORDLEN 100 /* maximum word (token) length */ #endif /* _USEFUL_H_ */