MB_LEN_MAX(3)

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

SYNOPSIS
#include <limits.h>

#define MB_LEN_MAX constant-expression

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)