strcspn(3) - NetBSD Manual Pages

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STRCSPN(3)              NetBSD 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 10.1                     August 11, 2002                    NetBSD 10.1