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

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Test your C++ skills with our quiz based on Bruce Eckel's 'Thinking in C++'. Dive into object-oriented programming, advanced topics, and fundamentals. Perfect for learners and experts alike. Assess your knowledge and become a C++ master!

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What does the declaration 'struct X;' represent in C++?

  1. A complete definition of a structure

  2. An incomplete type specification

  3. Initialization of an X structure

  4. Declaration of an X object

The correct answer is: An incomplete type specification

This declaration represents an incomplete type specification. This means that the structure named X is declared but it does not contain any data members or member functions.In option A, declaring a complete definition would require specifying the data members and functions within the structure. Option C and D are incorrect because neither initialization of a structure nor declaration of an object is accomplished by writing 'struct X;'.

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