Example: Logical operators in expressions
These are the examples of logical operators in expressions.
Symbol (Function) | Description | Example: If tag1 = 5 and tag2 = 7, then: |
&& (Logical AND) | Returns a value of 1 if the statements to the right and to the left of the operator are both true (non-zero). | (tag1 < tag2) && (tag1 == 5)r eturns a 1 because both statements are non-zero (true)tag1 && tag2 r eturns a 1 because both tag1 and tag2 are non-zero (true) |
ll (Logical OR) | Returns a value of 1 if either the statement to the left or to the right of the operator is true (non-zero). | (tag1 > tag2) ll (tag1 == 5)r eturns a value of 1 because tag1 == 5 is true |
! (Logical NOT) | Inverts the Boolean value of an expression. Returns true if the expression is false and returns false if the expression is true. If the expression (a>b) evaluates to true, then !(a>b) evaluates to false. | !(tag1 < tag2)
The expression tag1 < tag2 evaluates to true and returns a value of 1, but the NOT operator reverses the logical value, and 0 is returned. |
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