MB_CUR_MAX - maximum length of a multibyte character in the current locale

       The MB_CUR_MAX macro defines an integer expression giving the maximum number of bytes needed to represent
       a  single  wide  character  in  the  current  locale.  This value is locale dependent and therefore not a
       compile-time constant.

       C99, POSIX.1-2001.

       Standard C library (libc)

       MB_CUR_MAX - maximum length of a multibyte character in the current locale

       An integer in the range [1, MB_LEN_MAX].  The value 1 denotes traditional 8-bit encoded characters.

MB_LEN_MAX(3), mblen(3), mbstowcs(3), mbtowc(3), wcstombs(3), wctomb(3)

Linux man-pages 6.9.1                              2024-05-02                                      MB_CUR_MAX(3)

       C11, POSIX.1-2008.

#include<stdlib.h>