Mastering C++: A Comprehensive Quiz Based on 'Thinking in C++'

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Study for the C++ exam based on 'Thinking in C++'. Engage with challenging quiz questions designed to boost your understanding and proficiency in C++. Get prepared to master C++ programming concepts through an interactive and informative quiz experience!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the purpose of returning by value as a const in operator overloading?

To modify the operand
To avoid modifications on temporary objects
To allow changes on the returned object
To enforce type safety

The correct answer is: To avoid modifications on temporary objects

When overloading an operator, returning by value as a const ensures that the returned object cannot be modified. This is done to avoid any potential modifications on temporary objects, which can lead to unexpected behavior in the code. Option A is incorrect because operator overloading should not modify the operands, but rather perform an operation on them. Option C is incorrect because using const indicates that the returned object should not be modified. Option D is incorrect because enforcing type safety is not the primary purpose of returning by value as a const in operator overloading.