What is an r-value and l-value?

1.	What is an r-value and l-value?
Answer» The term "r-value" refers to a data value stored in memory at a given address. An r-value is an EXPRESSION that cannot have a value assigned to it, hence it can only exist on the right SIDE of an assignment operator(=). The term "l-value" refers to a memory location that is used to IDENTIFY an object. The l-value can be found on EITHER the LEFT or right side of an assignment operator(=). l-value is frequently used as an identifier.

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