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Question 24

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

#include

using namespace std;

int main ()

{

std::vectorv1;

v1.push_back(10);

return 0;

}

Options:

A.

compilation fails due to error in line 2

B.

compilation fails due to error in line 5

C.

exception is thrown during run time

D.

code compiles and executes successfully

Question 25

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

#include

#include

#include

#include

using namespace std;

void myfunction(int i) {

cout << " " << i;

}

bool classifier(int v) {

return v%2==0;

}

int main() {

int t[] = { 1, 5, 2, 5, 2, 4, 4, 3, 3, 1 };

vector v1(t, t+10);

set s1(t, t+10);

replace(v1.begin(), v1.end(),classifier, 10);

for_each(v1.begin(), v1.end(), myfunction);

return 0;

}

Program outputs:

Options:

A.

1 5 10 5 10 10 10 3 3 1

B.

1 5 2 5 2 4 4 3 3 1

C.

compilation error

D.

10 10 2 10 2 4 4 10 10 10

Question 26

Which sentence is correct about the code below?

#include

#include

#include

using namespace std;

class A {

int a;

public:

A(int a) : a(a) {}

int getA() const { return a; }

void setA(int a) { this?>a = a; }

/* Insert Code Here */

};

struct add10 { void operator()(A & a) { a.setA(a.getA() + 10); } };

int main() {

int t[] = { 10, 5, 9, 6, 2, 4, 7, 8, 3, 1 };

vector v1(t, t + 10);

for_each(v1.begin(), v1.end(), add10());

vector::iterator it = find(v1.begin(), v1.end(), A(7));

cout << it?>getA() << endl;

return 0;

}

Options:

A.

it will compile and print 7

B.

it will not compile

C.

it will compile but the program result is unpredictable

D.

adding code:

bool operator !=(const A & b) const {

if (this?>a != b.a) { return true; } return false; }

at Place 1 will allow the program to compile

Question 27

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

#include

using namespace std;

template

class A {

T_v;

public:

A(T v);

};

template

Options:

A.

:A(T v):_v(v) {}

int main()

{

A a(2);

cout<<1<<endl;

return 0;

}

B.

program will display: 1

C.

program will not compile

D.

program will compile

E.

program will cause runtime exception

Page: 6 / 8
Exam Code: CPP
Exam Name: C++ Certified Professional Programmer
Last Update: May 18, 2024
Questions: 228
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