1.2.6 Using Equality Operations
Unlike other set operations, the equality operation evaluates to a single Boolean expression. It checks for bit equality between a set of variables and a constant. The bit positions of the constant number are checked against the corresponding positions in the set. Where the bit position is a binary 1, the set element is unchanged. Where the bit position is a binary 0, the set element is negated. Where the bit position is a binary X, the set element is removed. The resulting elements are then ANDed together to create a single expression.
The equality operator can also be used with a set of variables that are to be operated
upon identically. For example, the following three expressions:
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are equivalent, respectively, to:
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