The canonical form of the assignment operator is: Class& Class::operator= (const Class& rhs) { } Class...

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The canonical form of the assignment operator is: Class& Class::operator= (const Class& rhs) { } Class temp (rhs); swap (temp); return this; (a) What is meant by an atomic operation? (b) Why does this form of the assignment operator guarantee atomic assignment? (2 marks) marks) marks) (c) What is the purpose of returning this? (d) Rewrite the canonical form given above so that it works in an identical fashion but has one line less of code. (3 marks) The canonical form of the assignment operator is: Class& Class::operator= (const Class& rhs) { } Class temp (rhs); swap (temp); return this; (a) What is meant by an atomic operation? (b) Why does this form of the assignment operator guarantee atomic assignment? (2 marks) marks) marks) (c) What is the purpose of returning this? (d) Rewrite the canonical form given above so that it works in an identical fashion but has one line less of code. (3 marks)

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