(xchg 'var 'var ..) -> any- Exchange the values of successive
var argument pairs. See also
swap and set.
: (setq A 1 B 2 C '(a b c))
-> (a b c)
: (xchg 'A C 'B (cdr C))
-> 2
: A
-> a
: B
-> b
: C
-> (1 2 c)
(xor 'any 'any) -> flg- Returns T if exactly one of the arguments evaluates to non-
NIL.
: (xor T NIL)
-> T
: (xor T T)
-> NIL
(x| 'num ..) -> num- Returns the bitwise
XOR of all num arguments. When
one of the arguments evaluates to NIL, it is returned immediately.
See also &, | and bit?.
: (x| 2 7)
-> 5
: (x| 2 7 1)
-> 4