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─────Run-Time Library───────────────────────────────────────────────────────
 
  Include:   <stdlib.h>
 
  Syntax:    int mblen( char *mbstr, size_t count );
             int _fmblen( char __far *mbstr, size_t count );
 
  Returns:   the length, in bytes, of the multibyte character if <mbstr>
             is not NULL. If <mbstr> is NULL, or the object that it points
             to is the wide-character null character (L'\'), both
             functions return 0. If the object that <mbstr> points to does
             not form a valid multibyte character within the first <count>
             characters, they return -1.
 
  See also:  mbstowcs, mbtowc, wchar_t, wcstombs, wctomb, MB_CUR_MAX,
             MB_LEN_MAX
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