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

[All CPA-21-02 Questions]

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

#include

using namespace std;

void set(struct person*);

struct person

{

char name[25];

int age;

};

int main()

{

struct person e = {"Steve", 30};

set(&e);

cout<< e.name << " " << e.age;

return 0;

}

void set(struct person *p)

{

p?>age = p?>age + 1;

}

AError: in prototype declaration unknown struct person

BError: in structure

CIt prints: Steve 31

DNone of these

Show Suggested Answer

Suggested Answer: D

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

Limited Time Offer

25%

Off

Get Premium CPA-21-02 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Han

3 months ago

Wait, is this a trick question? I feel like I'm missing something obvious. I'm just gonna go with C and hope for the best. Pointers, man... they're like the Rubik's Cube of programming.

upvoted 0 times

Cherrie

2 months ago

C) It prints: Steve 31

upvoted 0 times

...

Chi

2 months ago

B) Error: in structure

upvoted 0 times

...

Elbert

3 months ago

A) Error: in prototype declaration unknown struct person

upvoted 0 times

...

Jannette

4 months ago

A classic pointer question! I bet the compiler is gonna scream at me for that weird-looking p->age syntax. I'm feeling confident and going with C, 'Steve 31'.

upvoted 0 times

Shawnda

2 months ago

User 3

upvoted 0 times

...

Kenneth

3 months ago

User 2

upvoted 0 times

...

Donte

3 months ago

User 1

upvoted 0 times

...

Ling

4 months ago

Haha, this reminds me of that time I spent hours debugging a pointer issue. Rookie mistake, I know. I'm going to go with C on this one, just to play it safe.

upvoted 0 times

Sabrina

2 months ago

I agree, C seems like the most likely outcome. It's always good to play it safe with these things.

upvoted 0 times

...

Anglea

3 months ago

Yeah, pointers can be tricky. C does seem like the safest option in this case.

upvoted 0 times

...

Bettina

3 months ago

I've made my fair share of pointer mistakes too. It happens to the best of us. C sounds like the safe bet here.

upvoted 0 times

...

Lisha

4 months ago

Hmm, I'm leaning towards B. Something seems off with the structure declaration. Maybe it's missing a semicolon or something. I'll have to double-check the syntax.

upvoted 0 times

Shawnda

3 months ago

Definitely A, the error is in the prototype declaration.

upvoted 0 times

...

Kizzy

3 months ago

Yeah, A makes sense. The struct person needs to be defined before it's used in the function.

upvoted 0 times

...

Danica

3 months ago

I agree, it looks like a prototype error. So, A is the correct answer.

upvoted 0 times

...

Dannie

4 months ago

I think it's A. The struct person is not defined before it's used.

upvoted 0 times

...

Tasia

4 months ago

Oh wow, this looks like a tricky one! I'm going to guess C, it prints 'Steve 31'. That pointer stuff is always a bit confusing, but I think the set function is modifying the age field directly.

upvoted 0 times