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32 .\" @(#)strcspn.3 8.1 (Berkeley) 6/4/93
33 .\" $FreeBSD: src/lib/libc/string/strcspn.3,v 1.9 2007/01/09 00:28:12 imp Exp $
34 .\" $DragonFly: src/lib/libc/string/strcspn.3,v 1.2 2003/06/17 04:26:46 dillon Exp $
41 .Nd span the complement of a string
47 .Fn strcspn "const char *s" "const char *charset"
52 spans the initial part of the null-terminated string
54 as long as the characters from
56 do not occur in string
63 In other words, it computes the string array index in
65 of the first character of
69 else the index of the first null character.
74 returns the number of characters spanned.