691c7565_erators_and_Eratosthenes_Sieve_Summary_of_Bitwise_Operators_operator
[coding] ^ [notes] returns 1 if LHS and RHS bits the same, 0 if different [operator] 
exclusive OR
l e f t s h i f t
r i g h t s h i f t
b i t w i s e A N D
b i t w i s e O R
e x c l u s i v e O R
t w o s c o m p l e m e n t
C Bitwise Operators and Eratosthenes Sieve
operator