| 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 |  | 
| 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 | /* 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 | /* memory operations */ | 
| 45 | #ifdef  STRUCTASSIGN | 
| 46 | #define  copystruct(d,s)        (*(d) = *(s)) | 
| 47 | #else | 
| 48 | #define  copystruct(d,s)        bcopy((char *)(s),(char *)(d),sizeof(*(d))) | 
| 49 | #endif | 
| 50 | #ifndef  BSD | 
| 51 | #define  bcopy(s,d,n)           (void)memcpy(d,s,n) | 
| 52 | #define  bzero(d,n)             (void)memset(d,0,n) | 
| 53 | #define  bcmp(b1,b2,n)          memcmp(b1,b2,n) | 
| 54 | extern char  *memcpy(), *memset(); | 
| 55 | #endif | 
| 56 |  | 
| 57 | extern char  *sskip(); | 
| 58 | extern char  *getpath(); | 
| 59 | extern char  *malloc(), *calloc(), *realloc(); | 
| 60 | extern char  *bmalloc(), *savestr(), *savqstr(); |