Explain the 'offsetof' macro.

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Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

'offsetof' macro calculates the byte offset of a field within a struct or object. It's used in C/C++ for memory manipulation.
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Experienced Computer trainer having worked in IT sector for 20 years.

The offsetof() macro returns the offset of the element name within the struct or union composite. This provides a portable method to determine the offset.
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