C++ Institute Exam CPA-21-02 Topic 1 Question 17 Discussion

Actual exam question for C++ Institute's CPA-21-02 exam

Question #: 17
Topic #: 1

Which line of code inserted instead of the comment will make the following code run properly without causing memory leaks?

A~Base() ( delete this; }

Bno additional code is needed

C~Base() { delete ptr; delete ptr; }

D~Base() { delete ptr; }

Show Suggested Answer

Suggested Answer: D

by Raylene at May 30, 2024, 03:55 PM

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Ty

8 months ago

I agree with you, Weldon. Deleting the pointer once in the destructor should prevent memory leaks.

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Weldon

9 months ago

I think the correct answer is D.

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Jerlene

9 months ago

B? No additional code needed? Seriously, this is a textbook example of a destructive function. You gotta delete that pointer, my friend.

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Alecia

9 months ago

Option C is just silly, deleting the pointer twice? That's a surefire way to cause a crash!

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Harley

9 months ago

Clearly, option D is the correct answer. Deleting the pointer once is the way to go to avoid memory leaks.

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Loren

7 months ago

Yes, deleting the pointer once in the destructor is the right way to prevent memory leaks.

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Loren

7 months ago

I agree, option D is the correct answer.

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Loreta

8 months ago

Yes, deleting the pointer once in the destructor is the best practice to avoid memory leaks.

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Loreta

8 months ago

I agree, option D is the correct answer.

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Loreen

8 months ago

Yes, deleting the pointer once in the destructor is the right way to prevent memory leaks.

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Loreen

8 months ago

I agree, option D is the correct answer.

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