mblen

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)