MB_LEN_MAXSection: Linux Programmer's Manual (3)
Index Return to Main Contents
NAMEMB_LEN_MAX - maximum multibyte length of a character across all locales
DESCRIPTIONThe MB_LEN_MAX macro is the upper bound for the number of bytes needed to represent a single wide character, across all locales.
RETURN VALUEA constant integer >= 1.
CONFORMING TOC99, POSIX.1-2001.
NOTESThe 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.