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 >= 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)