>_Bool is a notational convenience, maybe helping document functions >returning only pass/fail status, or for the isalpha(2) family of >functions.
no, since its type is different from that produced by the logical and equality operators (eg, ! and ==) which are still int! it's a unsigned integer type with a limited range (0 or 1), a special conversion rule, and of course a peculiar name (not even _bool!). pointless tinkering.
