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root/radiance/ray/src/common/standard.h
Revision: 1.2
Committed: Thu Jul 27 22:41:04 1989 UTC (34 years, 9 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 1.1: +7 -0 lines
Log Message:
Changed getpath() to check access modes

File Contents

# User Rev Content
1 greg 1.1 /* Copyright (c) 1988 Regents of the University of California */
2    
3     /* SCCSid "$SunId$ LBL" */
4    
5     /*
6     * Miscellaneous definitions required by many routines.
7     */
8    
9     #include <stdio.h>
10    
11     #include <math.h>
12    
13     #include <errno.h>
14    
15     #include "fvect.h"
16    
17     #define FHUGE (1e10) /* large real number */
18     #define FTINY (1e-6) /* small real number */
19    
20     #ifdef M_PI
21     #define PI M_PI
22     #else
23     #define PI 3.14159265358979323846
24     #endif
25 greg 1.2
26     #ifndef F_OK /* mode bits for access(2) call */
27     #define R_OK 4 /* readable */
28     #define W_OK 2 /* writable */
29     #define X_OK 1 /* executable */
30     #define F_OK 0 /* exists */
31     #endif
32 greg 1.1 /* error codes */
33     #define WARNING 1 /* non-fatal error */
34     #define USER 2 /* fatal user-caused error */
35     #define SYSTEM 3 /* fatal system-related error */
36     #define INTERNAL 4 /* fatal program-related error */
37     #define CONSISTENCY 5 /* bad consistency check, abort */
38     #define COMMAND 6 /* interactive error */
39    
40     extern char errmsg[]; /* global buffer for error messages */
41    
42     extern int errno; /* system error number */
43    
44     extern char *sskip();
45     extern char *getpath();
46     extern char *malloc(), *calloc(), *realloc();
47     extern char *bmalloc(), *savestr(), *savqstr();