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/* Copyright (c) 1992 Regents of the University of California */
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/* SCCSid "$SunId$ LBL" */
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/*
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* Miscellaneous definitions required by many routines.
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*/
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#include <stdio.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 "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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#ifdef M_PI
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#define PI M_PI
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#else
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#define PI 3.14159265358979323846
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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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/* error codes */
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#define WARNING 1 /* non-fatal error */
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#define USER 2 /* fatal user-caused error */
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#define SYSTEM 3 /* fatal system-related error */
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#define INTERNAL 4 /* fatal program-related error */
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#define CONSISTENCY 5 /* bad consistency check, abort */
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#define COMMAND 6 /* interactive error */
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extern char errmsg[]; /* global buffer for error messages */
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/* memory operations */
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#ifdef NOSTRUCTASS
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#define copystruct(d,s) bcopy((char *)(s),(char *)(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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extern char *memcpy(), *memset();
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#define index strchr
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#define rindex strrchr
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#endif
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extern char *sskip();
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extern char *getpath(), *getenv();
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#ifndef malloc
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extern char *malloc(), *calloc(), *realloc();
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#endif
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extern char *bmalloc(), *savestr(), *savqstr();
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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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