C++ Institute Exam CPP Topic 2 Question 102 Discussion

Actual exam question for C++ Institute's CPP exam

Question #: 102
Topic #: 2

[All CPP Questions]

What will happen when you attempt to compile and run the code below, assuming that file test.in contains the following sequence: 1 2 3?

#include

using namespace std;

templatestruct Out {

ostream & out;

Out(ostream & o): out(o){}

void operator() (const T & val ) {out<

int main () {

ifstream f("test.in");

list l;

for( ; f.good() ; ) {

int i;

f>>i;

l.push_back(i);

}

f.close();

for_each(l.begin(), l.end(), Out(cout));

return 0;

}

Program will output:

A1 2 3

B1 2 3 3

Cno output

Dcompilation error

Eprogram runs forever without output

Show Suggested Answer

Suggested Answer: C

by Rosenda at Jan 13, 2025, 07:08 PM

Limited Time Offer

25%

Off

Get Premium CPP Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Dorethea

16 days ago

This question is making my head spin! I feel like I'm being tested on my ability to read minds, not C++ code. Maybe the real answer is that the program will summon a horde of angry cats who will steal all the test papers. Now that would be a real surprise!

upvoted 0 times

...

Amie

18 days ago

Hmm, I'm not too sure about this one. The code looks a bit complex, and I can see a couple of potential issues. I'm going to play it safe and go with D, just in case there's a compilation error lurking somewhere.

upvoted 0 times

...

Tashia

19 days ago

I'm going with B. The code looks a bit weird, and I think it might read the last integer '3' twice. You never know with these tricky questions!

upvoted 0 times

...

Hannah

26 days ago

Definitely option A. The code is straightforward and should work as expected. I'm surprised the other options are even there. This is an easy one!

upvoted 0 times

...

Ashlyn

30 days ago

The program will output '1 2 3', as the code reads the integers from the input file and stores them in a list, then uses the for_each algorithm to print each element of the list to the console.

upvoted 0 times

...