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

How does 'oneChar' function handle subsequent calls after being initialized?

1. Resets and starts from the beginning of the string

2. Continues from the next character in the string

3. Returns only the first character regardless of calls

4. Exits the program

The correct answer is: Continues from the next character in the string

The 'oneChar' function will continue from the next character in the string after being initialized. This means that if you call the function multiple times, it will go through the string one character at a time, starting from the point where it left off on the previous call. Option A is incorrect because the function does not reset and start from the beginning of the string on subsequent calls. Option C is incorrect because the function will not return the same character every time, it will continue to the next character on each call. Option D is also incorrect because the function does not exit the program, it only returns one character from the string.