ToLower
# undef ToLower
# define ToLower(c) (IsUpper((uch) c) ? (unsigned) c | 0x20 : (unsigned) c)
# define ToLower(x) ((char)(isupper((int)x)? tolower((int)x) : x))
# define ToLower tolower /* assumed "smart"; used in match() */
BUnicodeChar::ToLower(uint32 c)
BString::ToLower()