C++ Institute Exam CPA-21-02 Topic 1 Question 24 Discussion

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

Question #: 24
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 Julio at Sep 08, 2024, 10:26 AM

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Ty

4 months ago

I believe option B is incorrect, some code is needed to properly manage memory.

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Kina

4 months ago

I'm not sure, but I think option C might also work since it deletes ptr twice.

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Avery

4 months ago

I agree with Jospeh, option D makes sense to prevent memory leaks.

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Jenise

5 months ago

Option B is just wishful thinking. No code? Really? That's not how C++ works, folks.

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Onita

5 months ago

Haha, I bet the person who wrote Option C must have been napping during the memory management lecture. Rookie mistake!

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Susana

5 months ago

I agree with Allene. Deleting the pointer twice like in Option C is a common mistake that can cause issues.

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Van

3 months ago

Always important to be careful with memory management in code.

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Almeta

4 months ago

I agree, Option D is the safest choice to prevent memory leaks.

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Junita

4 months ago

Yeah, I think Option C is definitely wrong. Deleting the pointer twice is a bad idea.

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Domitila

4 months ago

Option D is the correct one. It deletes the pointer once to avoid memory leaks.

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Allene

5 months ago

Option D is clearly the correct answer. You only need to delete the pointer once to avoid memory leaks.

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Renea

4 months ago

Yeah, you just need to delete the pointer once.

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Dana

5 months ago

Option D is the correct answer.

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Jospeh

5 months ago

I think the answer is D) ~Base() { delete ptr; }

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