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/*
* 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 DEF_MAGIC 0x1D /* Magic for #defines */
#define TOK_SEP 0x1E /* Token concatenation delim. */
#define COM_SEP 0x1F /* Magic comment separator */
/*
* Note -- in Ascii, the following will map macro formals onto DEL + the
* C1 control character region (decimal 128 .. (128 + PAR_MAC)) which will
* be ok as long as PAR_MAC is less than 33). Note that the last PAR_MAC
* value is reserved for string substitution.
*/
#define MAC_PARM 0x7F /* Macro formals start here */
#if PAR_MAC >= 33
assertion fails -- PAR_MAC isn't less than 33
#endif
#define LASTPARM (PAR_MAC - 1)
/*
* 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
#define cput(c) { if (c != TOK_SEP && c != COM_SEP) putchar(c); }
#else
#define cput(c) { if (c != TOK_SEP) putchar(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 <ssdef.h>
#include <stsdef.h>
#define IO_NORMAL (SS$_NORMAL | STS$M_INHIB_MSG)
#define IO_ERROR SS$_ABORT
#endif
/*
* Note: IO_NORMAL and IO_ERROR are defined in the Decus C stdio.h file
*/
#ifndef IO_NORMAL
#define IO_NORMAL 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 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 */
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