What is a member access expression?

Member access expressions have the value and type of the selected member. There are two forms of member access expressions: In the first form, postfix-expression represents a value of struct, class, or union type, and name names a member of the specified structure, union, or class.
For More Information Please Refer:
https://docs.microsoft.com/en-us/cpp/cpp/member-access-operators-dot-and
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