What is the main difference between STRUCTURE and UNION?

Answer Posted / asesh k tripathy

The difference between union and structure can be as follows:
1. The way structure occupies memory for its member is different from union.
(a) Structure occupies appropriate separate memory for its members
(b) Union occupies memory for that member which needs largest chunk of bytes.
2. We can initialize any of the structure members while initializing any of the union member other than the first member may have unpredictable results.

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