Question

What is an r-value and l-value in C Programming?

Answer 1

• 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.