C++ Institute Exam CPA-21-02 Topic 8 Question 29 Discussion

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

Question #: 29
Topic #: 8

[All CPA-21-02 Questions]

What happens when you attempt to compile and run the following code?

#include

using namespace std;

int fun(int x) {

return 2*x;

}

int main(){

int i;

i = fun(1) || fun(2);

cout << i;

return 0;

}

AIt prints: 0

BIt prints: 1

CIt prints: -1

DCompilation error

Show Suggested Answer

Suggested Answer: B

by Avery at Sep 17, 2024, 06:35 PM

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Leontine

3 months ago

I'm not sure, but I think it might be a compilation error because you can't use logical OR with integers.

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Noe

3 months ago

Haha, the correct answer is obviously C. Because, you know, -1 is just a classic programmer's choice for a return value. Who needs 0 or 1 when you have -1, am I right?

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Rodrigo

2 months ago

Got it, thanks for the explanation. Looks like I need to review my logical operators.

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Carmen

2 months ago

I see, but in this case, the return value of fun(1) is 2 and the return value of fun(2) is also 2. So, the logical OR operator won't work as expected.

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