mb_len_max(3) - Linux man page
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 greater than zero.
Conforming to
C99, POSIX.1-2001.
Notes
The entities MB_LEN_MAX and sizeof(wchar_t) are totally unrelated. In glibc, MB_LEN_MAX is
typically 6 while sizeof(wchar_t) is 4.
See Also
mb_cur_max(3)