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STRCSPN(3) Library Functions Manual STRCSPN(3) NAME strcspn - span the complement of a string LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <string.h> size_t strcspn(const char *s, const char *charset); DESCRIPTION The strcspn() function spans the initial part of the nul-terminated string s as long as the characters from s do not occur in string charset (it spans the complement of charset). RETURN VALUES The strcspn() function returns the number of characters spanned. EXAMPLES The following call to strcspn() will return 3, since the first three characters of string s do not occur in string charset: char *s = "foobar"; char *charset = "bar"; size_t span; span = strcspn(s, charset); SEE ALSO index(3), memchr(3), rindex(3), strchr(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3) STANDARDS The strcspn() function conforms to ANSI X3.159-1989 ("ANSI C89"). NetBSD 9.99 August 11, 2002 NetBSD 9.99