MBLEN(3)

NAME
       mblen - determine the number of bytes in a character

SYNOPSIS
       #include <<stdlib.h>>

       int mblen(const char *s, size_t n);

DESCRIPTION
       The mblen() function scans the first n bytes of the string
       s and returns the number of bytes  in  a  character.   The
       mblen() function is equivalent to
              mbtowc((wchat_t *)0, s, n);

       except  that  the  shift state of the mbtowc() function is
       not affected.

RETURN VALUE
       The mblen() returns the number of bytes in a character  or
       -1 if the character is invalid or 0 if s is a NULL string.

CONFORMING TO
       SVID 3, ISO 9899

SEE ALSO
       mbstowcs(3) mbtowc(3) wcstombs(3) wctomb(3)