strlen(3) - NetBSD Manual Pages

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STRLEN(3)               NetBSD Library Functions Manual              STRLEN(3)


NAME

     strlen, strnlen -- find length of string


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <string.h>

     size_t
     strlen(const char *s);

     size_t
     strnlen(const char *s, size_t maxlen);


DESCRIPTION

     The strlen() function computes the length of the string s.

     The strnlen() function attempts to compute the length of s, but never
     scans beyond the first maxlen bytes of s.


RETURN VALUES

     The strlen() function returns the number of characters that precede the
     terminating NUL character.

     The strnlen() function returns either the same result as strlen() or
     maxlen, whichever is smaller.


SEE ALSO

     string(3), wcslen(3), wcswidth(3)


STANDARDS

     The strlen() function conforms to ISO/IEC 9899:1990 (``ISO C90'').  The
     strnlen() function conforms to IEEE Std 1003.1-2008 (``POSIX.1'').

NetBSD 9.0                        May 1, 2009                       NetBSD 9.0