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What does the data type defined by union will do?

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What does the data type defined by union will do?

(a) It allow one different portion of memory to be accessed as same data types

(b) It allow one same portion of memory to be accessed as same data types

(c) It allow one different portion of memory to be accessed as different data types

(d) It allow one same portion of memory to be accessed as different data types

The question was posed to me by my school principal while I was bunking the class.

The doubt is from User Defined Types in portion Source Files, Classes and Operator Overloading in C++ of C++

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Correct choice is (d) It allow one same portion of memory to be accessed as different data types

The best explanation: Union is used to define the data types of our choice and it will store the data type in one location make them accessible.

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