projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| b1d508ab PK |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | ||
| 31cef89c | 3 | static char sccsid[] = "@(#)ato.c 1.1 8/27/80"; |
| b1d508ab PK |
4 | |
| 5 | #include "whoami.h" | |
| 6 | #include "0.h" | |
| 7 | ||
| 8 | long | |
| 9 | a8tol(cp) | |
| 10 | char *cp; | |
| 11 | { | |
| 12 | int err; | |
| 13 | long l; | |
| 14 | register CHAR c; | |
| 15 | ||
| 16 | l = 0; | |
| 17 | err = 0; | |
| 18 | while ((c = *cp++) != '\0') { | |
| 19 | if (c == '8' || c == '9') | |
| 20 | if (err == 0) { | |
| 21 | error("8 or 9 in octal number"); | |
| 22 | err++; | |
| 23 | } | |
| 24 | c -= '0'; | |
| 25 | if ((l & 0160000000000L) != 0) | |
| 26 | if (err == 0) { | |
| 27 | error("Number too large for this implementation"); | |
| 28 | err++; | |
| 29 | } | |
| 30 | l = (l << 3) | c; | |
| 31 | } | |
| 32 | return (l); | |
| 33 | } | |
| 34 | ||
| 35 | /* | |
| 36 | * Note that the version of atof | |
| 37 | * used in this compiler does not | |
| 38 | * (sadly) complain when floating | |
| 39 | * point numbers are too large. | |
| 40 | */ |