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

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Prepare for the ultimate C++ challenge with our comprehensive quiz based on 'Thinking in C++'. Test your knowledge with engaging questions and receive instant feedback. Perfect for both beginners and experienced C++ programmers looking to sharpen their skills!

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For operators that do not modify their operands, how should the operands be passed?

  1. By value

  2. By reference

  3. By constant reference

  4. As a pointer

The correct answer is: By constant reference

When passing operands to operators, it is important to consider whether or not the operands will be modified by the operator. In cases where the operands should not be modified, it is best to pass them by constant reference. This ensures that the original values of the operands will not be altered, as they would be if passed by value or by reference. Passing operands as a pointer would also give the operator access to the original values, which could result in unintended modifications.

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