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/* RCSid $Id: standard.h,v 2.23 2003/06/05 19:29:34 schorsch Exp $ */
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/*
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* Miscellaneous definitions required by many routines.
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*/
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#ifndef _RAD_STANDARD_H_
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#define _RAD_STANDARD_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "copyright.h"
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#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <math.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include "platform.h"
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#include "mat4.h"
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/* regular transformation */
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typedef struct {
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MAT4 xfm; /* transform matrix */
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FLOAT sca; /* scalefactor */
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} XF;
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/* complemetary tranformation */
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typedef struct {
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XF f; /* forward */
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XF b; /* backward */
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} FULLXF;
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#ifndef PI
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#ifdef M_PI
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#define PI ((double)M_PI)
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#else
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#define PI 3.14159265358979323846
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#endif
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#endif
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#ifndef F_OK /* mode bits for access(2) call */
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#define R_OK 4 /* readable */
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#define W_OK 2 /* writable */
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#define X_OK 1 /* executable */
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#define F_OK 0 /* exists */
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#endif
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#ifndef int2
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#define int2 short /* two-byte integer */
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#endif
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#ifndef int4
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#define int4 int /* four-byte integer */
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#endif
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/* error codes */
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#define WARNING 0 /* non-fatal error */
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#define USER 1 /* fatal user-caused error */
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#define SYSTEM 2 /* fatal system-related error */
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#define INTERNAL 3 /* fatal program-related error */
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#define CONSISTENCY 4 /* bad consistency check, abort */
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#define COMMAND 5 /* interactive error */
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#define NERRS 6
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/* error struct */
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extern struct erract {
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char pre[16]; /* prefix message */
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void (*pf)(); /* put function (resettable) */
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int ec; /* exit code (0 means non-fatal) */
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} erract[NERRS]; /* list of error actions */
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#define ERRACT_INIT { {"warning - ", wputs, 0}, \
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{"fatal - ", eputs, 1}, \
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{"system - ", eputs, 2}, \
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{"internal - ", eputs, 3}, \
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{"consistency - ", eputs, -1}, \
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{"", NULL, 0} }
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extern char errmsg[]; /* global buffer for error messages */
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#ifdef FASTMATH
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#define tcos cos
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#define tsin sin
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#define ttan tan
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#else
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extern double tcos(); /* table-based cosine approximation */
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#define tsin(x) tcos((x)-(PI/2.))
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#define ttan(x) (tsin(x)/tcos(x))
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#endif
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/* custom version of assert(3) */
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#define CHECK(be,et,em) if (be) error(et,em); else
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#ifdef DEBUG
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#define DCHECK CHECK
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#else
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#define DCHECK(be,et,em) (void)0
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#endif
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/* memory operations */
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#ifdef NOSTRUCTASS
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#define copystruct(d,s) bcopy((void *)(s),(void *)(d),sizeof(*(d)))
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#else
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#define copystruct(d,s) (*(d) = *(s))
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#endif
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#ifndef BSD
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#define bcopy(s,d,n) (void)memcpy(d,s,n)
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#define bzero(d,n) (void)memset(d,0,n)
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#define bcmp(b1,b2,n) memcmp(b1,b2,n)
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#define index strchr
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#define rindex strrchr
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#endif
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extern off_t lseek();
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#ifdef MSDOS
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#define NIX 1
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#endif
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#ifdef AMIGA
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#define NIX 1
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#endif
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/* defined in badarg.c */
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extern int badarg(int ac, char **av, char *fl);
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/* defined in bmalloc.c */
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extern char *bmalloc(unsigned int n);
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extern void bfree(char *p, unsigned int n);
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/* defined in error.c */
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extern void error(int etype, char *emsg);
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/* defined in expandarg.c */
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extern int expandarg(int *acp, char ***avp, int n);
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/* defined in fdate.c */
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extern time_t fdate(char *fname);
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extern int setfdate(char *fname, long ftim);
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/* defined in fgetline.c */
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extern char *fgetline(char *s, int n, FILE *fp);
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/* defined in fgetval.c */
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extern int fgetval(FILE *fp, int ty, char *vp);
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/* defined in fgetword.c */
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extern char *fgetword(char *s, int n, FILE *fp);
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/* defined in fputword.c */
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extern void fputword(char *s, FILE *fp);
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/* defined in fixargv0.c */
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extern char *fixargv0(char *av0);
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/* defined in fropen.c */
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extern FILE *frlibopen(char *fname);
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/* defined in getlibpath.c */
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extern char *getrlibpath(void);
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/* defined in getpath.c */
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extern char *getpath(char *fname, char *searchpath, int mode);
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/* defined in portio.c */
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extern void putstr(char *s, FILE *fp);
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extern void putint(long i, int siz, FILE *fp);
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extern void putflt(double f, FILE *fp);
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extern char *getstr(char *s, FILE *fp);
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extern long getint(int siz, FILE *fp);
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extern double getflt(FILE *fp);
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/* defined in process.c */
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extern int open_process(int pd[3], char *av[]);
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extern int process(int pd[3], char *recvbuf, char *sendbuf,
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int nbr, int nbs);
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extern int close_process(int pd[3]);
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extern int readbuf(int fd, char *bpos, int siz);
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extern int writebuf(int fd, char *bpos, int siz);
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/* defined in rexpr.c */
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extern int ecompile(char *sp, int iflg, int wflag);
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extern char *expsave(void);
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extern void expset(char *ep);
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extern char *eindex(char *sp);
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/* defined in savestr.c */
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extern char *savestr(char *str);
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extern void freestr(char *s);
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extern int shash(char *s);
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/* defined in savqstr.c */
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extern char *savqstr(char *s);
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extern void freeqstr(char *s);
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/* defined in tcos.c */
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extern double tcos(double x);
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/* defined in wordfile.c */
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extern int wordfile(char **words, char *fname);
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extern int wordstring(char **avl, char *str);
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/* defined in words.c */
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extern char *atos(char *rs, int nb, char *s);
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extern char *nextword(char *cp, int nb, char *s);
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extern char *sskip(char *s);
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extern char *sskip2(char *s, int n);
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extern char *iskip(char *s);
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extern char *fskip(char *s);
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extern int isint(char *s);
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extern int isintd(char *s, char *ds);
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extern int isflt(char *s);
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extern int isfltd(char *s, char *ds);
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/* defined in xf.c */
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extern int xf(XF *ret, int ac, char *av[]);
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extern int invxf(XF *ret, int ac, char *av[]);
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extern int fullxf(FULLXF *fx, int ac, char *av[]);
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/* defined in zeroes.c */
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extern int quadtratic(double *r, double a, double b, double c);
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/* defined in dircode.c */
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extern int4 encodedir(FVECT dv);
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extern void decodedir(FVECT dv, int4 dc);
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extern double dir2diff(int4 dc1, int4 dc2);
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extern double fdir2diff(int4 dc1, FVECT v2);
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/* miscellaneous */
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extern void eputs(char *s);
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extern void wputs(char *s);
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extern void quit(int code);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _RAD_STANDARD_H_ */
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