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!

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!

Practice this question and more.

What condition causes the 'oneChar()' function to return 0?

When 'charArray' is null and 's' is uninitialized
After 's' has incremented beyond the end of 'a'
If the string 'a' contains a null character
When called with any argument after the first initialization

The correct answer is: After 's' has incremented beyond the end of 'a'

The 'oneChar()' function returns 0 when the string 's' has incremented beyond the end of the 'a' array, which means that the index of 's' is out of bounds in relation to the size of the 'a' array. Option A is incorrect because the function will not return 0 if 's' is not initialized. Option C is incorrect because the function does not check for null characters within 'a', but rather uses the size of 'a' to determine whether 's' is at an invalid index. Finally, option D is incorrect because the function will return 0 only when 's' is incremented beyond the end of 'a', not after any other initialization.