Logical operations and other utilities for preprocessor metaprogramming

XIEITE_AND()
XIEITE_ANY()
XIEITE_AT()
XIEITE_BOOL()
XIEITE_CALL()
XIEITE_CAT()
XIEITE_CHECK()
XIEITE_CM()
XIEITE_COMMA()
XIEITE_COMPL()
XIEITE_COUNT()
XIEITE_DEFER()
XIEITE_EACH()
XIEITE_EAT()
XIEITE_EVAL()
XIEITE_FROM()
XIEITE_IF()
XIEITE_NONE()
XIEITE_NOT()
XIEITE_OBSTRUCT()
XIEITE_OPT()
XIEITE_OR()
XIEITE_PAREN()
XIEITE_PROBE()
XIEITE_REPEAT()
XIEITE_REVERSE()
XIEITE_REVIVE()
XIEITE_SCAN()
XIEITE_SEQ()
XIEITE_STR()
XIEITE_UNTIL()
XIEITE_UNWRAP()
XIEITE_WRAP()
XIEITE_WRAPPED()