/* * I n t e r n a l D e f i n i t i o n s f o r C P P * * In general, definitions in this file should not be changed. */ #ifndef TRUE #define TRUE 1 #define FALSE 0 #endif #ifndef EOS /* * This is predefined in Decus C */ #define EOS '\0' /* End of string */ #endif #define EOF_CHAR 0 /* Returned by get() on eof */ #define NULLST ((char *) NULL) /* Pointer to nowhere (linted) */ #define DEF_NOARGS (-1) /* #define foo vs #define foo() */ /* * The following may need to change if the host system doesn't use ASCII. */ #define ST_QUOTE 0x1C /* Magic for stringizing */ #define DEF_MAGIC 0x1D /* Magic for #defines */ #define TOK_SEP 0x1E /* Token concatenation delim. */ #define COM_SEP 0x1F /* Magic comment separator */ #define MAC_PARM 0x7F /* Macro formals signal */ /* * Character type codes. */ #define INV 0 /* Invalid, must be zero */ #define OP_EOE INV /* End of expression */ #define DIG 1 /* Digit */ #define LET 2 /* Identifier start */ #define FIRST_BINOP OP_ADD #define OP_ADD 3 #define OP_SUB 4 #define OP_MUL 5 #define OP_DIV 6 #define OP_MOD 7 #define OP_ASL 8 #define OP_ASR 9 #define OP_AND 10 /* &, not && */ #define OP_OR 11 /* |, not || */ #define OP_XOR 12 #define OP_EQ 13 #define OP_NE 14 #define OP_LT 15 #define OP_LE 16 #define OP_GE 17 #define OP_GT 18 #define OP_ANA 19 /* && */ #define OP_ORO 20 /* || */ #define OP_QUE 21 /* ? */ #define OP_COL 22 /* : */ #define OP_CMA 23 /* , (relevant?) */ #define LAST_BINOP OP_CMA /* Last binary operand */ /* * The following are unary. */ #define FIRST_UNOP OP_PLU /* First Unary operand */ #define OP_PLU 24 /* + (draft ANSI standard) */ #define OP_NEG 25 /* - */ #define OP_COM 26 /* ~ */ #define OP_NOT 27 /* ! */ #define LAST_UNOP OP_NOT #define OP_LPA 28 /* ( */ #define OP_RPA 29 /* ) */ #define OP_END 30 /* End of expression marker */ #define OP_MAX (OP_END + 1) /* Number of operators */ #define OP_FAIL (OP_END + 1) /* For error returns */ /* * The following are for lexical scanning only. */ #define QUO 65 /* Both flavors of quotation */ #define DOT 66 /* . might start a number */ #define SPA 67 /* Space and tab */ #define BSH 68 /* Just a backslash */ #define END 69 /* EOF */ /* * These bits are set in ifstack[] */ #define WAS_COMPILING 1 /* TRUE if compile set at entry */ #define ELSE_SEEN 2 /* TRUE when #else processed */ #define TRUE_SEEN 4 /* TRUE when #if TRUE processed */ /* * Define bits for the basic types and their adjectives */ #define T_CHAR 1 #define T_INT 2 #define T_FLOAT 4 #define T_DOUBLE 8 #define T_SHORT 16 #define T_LONG 32 #define T_SIGNED 64 #define T_UNSIGNED 128 #define T_PTR 256 /* Pointer */ #define T_FPTR 512 /* Pointer to functions */ /* * The DEFBUF structure stores information about #defined * macros. Note that the defbuf->repl information is always * in malloc storage. */ typedef struct defbuf { struct defbuf *link; /* Next define in chain */ char *repl; /* -> replacement */ int hash; /* Symbol table hash */ int nargs; /* For define(args) */ char name[1]; /* #define name */ } DEFBUF; /* * The FILEINFO structure stores information about open files * and macros being expanded. */ typedef struct fileinfo { char *bptr; /* Buffer pointer */ int line; /* for include or macro */ FILE *fp; /* File if non-null */ struct fileinfo *parent; /* Link to includer */ char *filename; /* File/macro name */ char *progname; /* From #line statement */ unsigned int unrecur; /* For macro recursion */ char buffer[1]; /* current input line */ } FILEINFO; /* * The SIZES structure is used to store the values for #if sizeof */ typedef struct sizes { short bits; /* If this bit is set, */ short size; /* this is the datum size value */ short psize; /* this is the pointer size */ } SIZES; /* * nomacarg is a built-in #define on Decus C. */ #ifdef nomacarg #define cput output /* cput concatenates tokens */ #else #if COMMENT_INVISIBLE || OK_CONCAT == CON_EXPAND #define cput(c) { if ((c) != TOK_SEP && (c) != COM_SEP) \ putchar((c == ST_QUOTE) ? '"' : (c)); } #else #define cput(c) { if (c != TOK_SEP) \ putchar((c == ST_QUOTE) ? '"' : (c)); } #endif #endif #ifndef nomacarg #define streq(s1, s2) (strcmp(s1, s2) == 0) #endif /* * Error codes. VMS uses system definitions. * Decus C codes are defined in stdio.h. * Others are cooked to order. */ #if HOST == SYS_VMS #include #include #define IO_SUCCESS (SS$_NORMAL | STS$M_INHIB_MSG) #define IO_ERROR SS$_ABORT #endif /* * Note: IO_SUCCESS and IO_ERROR are defined in the Decus C stdio.h file */ #ifndef IO_SUCCESS #define IO_SUCCESS 0 #endif #ifndef IO_ERROR #define IO_ERROR 1 #endif /* * Externs */ extern int line; /* Current line number */ extern int wrongline; /* Force #line to cc pass 1 */ extern char type[]; /* Character classifier */ extern char token[IDMAX + 1]; /* Current input token */ extern int instring; /* TRUE if scanning string */ extern int inmacro; /* TRUE if scanning #define */ extern int errors; /* Error counter */ extern int recursion; /* Macro depth counter */ extern char ifstack[BLK_NEST]; /* #if information */ #define compiling ifstack[0] extern char *ifptr; /* -> current ifstack item */ extern char *incdir[NINCLUDE]; /* -i directories */ extern char **incend; /* -> active end of incdir */ extern int cflag; /* -C option (keep comments) */ extern int eflag; /* -E option (ignore errors) */ extern int nflag; /* -N option (no pre-defines) */ extern int pflag; /* -P option (no #line output) */ extern int tflag; /* -T option (enable trigraphs) */ extern int rec_recover; /* unwind recursive macros */ extern char *preset[]; /* Standard predefined symbols */ extern char *magic[]; /* Magic predefined symbols */ extern FILEINFO *infile; /* Current input file */ extern char work[NWORK + 1]; /* #define scratch */ extern char *workp; /* Free space in work */ #if DEBUG extern int debug; /* Debug level */ #endif extern int keepcomments; /* Don't remove comments if set */ extern SIZES size_table[]; /* For #if sizeof sizes */ extern char *getmem(); /* Get memory or die. */ extern DEFBUF *lookid(); /* Look for a #define'd thing */ extern DEFBUF *defendel(); /* Symbol table enter/delete */ extern char *savestring(); /* Stuff string in malloc mem. */ extern char *strcpy(); extern char *strcat(); extern char *strrchr(); extern char *strchr(); extern long time(); extern char *sprintf(); /* Lint needs this */