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1 | /* |
2 | * Copyright (c) 1985 Regents of the University of California. | |
317e5946 KB |
3 | * All rights reserved. |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
50c7758a KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
413c649f RE |
16 | */ |
17 | ||
2ce81398 | 18 | #if defined(LIBC_SCCS) && !defined(lint) |
50c7758a | 19 | static char sccsid[] = "@(#)strspn.c 5.4 (Berkeley) %G%"; |
317e5946 | 20 | #endif /* LIBC_SCCS and not lint */ |
413c649f RE |
21 | |
22 | strspn(s, set) | |
23 | register char *s, *set; | |
24 | { | |
25 | register n = 0; | |
26 | register char *p; | |
27 | register c; | |
28 | ||
29 | while (c = *s++) { | |
30 | for (p = set; *p; p++) | |
31 | if (c == *p) | |
32 | break; | |
33 | if (!*p) | |
34 | return (n); | |
35 | n++; | |
36 | } | |
37 | return (n); | |
38 | } |