redhat man page for mb_len_max

MB_LEN_MAX(3)						     Linux Programmer's Manual						     MB_LEN_MAX(3)

NAME
       MB_LEN_MAX - maximum multibyte length of a character across all locales

SYNOPSIS
       #include <limits.h>

DESCRIPTION
       The MB_LEN_MAX macro is the upper bound for the number of bytes needed to represent a single wide character, across all locales.

RETURN VALUE
       A constant integer >= 1.

CONFORMING TO
       ANSI C, POSIX.1

NOTES
       The entities MB_LEN_MAX and sizeof(wchar_t) are totally unrelated. In the GNU libc, MB_LEN_MAX is typically 6 while sizeof(wchar_t) is 4.

SEE ALSO
       MB_CUR_MAX(3)

Linux								    1999-07-04							     MB_LEN_MAX(3)