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Welcome to the Functions in C++ MCQs Page

Dive deep into the fascinating world of Functions in C++ with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Functions in C++, a crucial aspect of Object Oriented Programming Using C++. In this section, you will encounter a diverse range of MCQs that cover various aspects of Functions in C++, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Object Oriented Programming Using C++.

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Check out the MCQs below to embark on an enriching journey through Functions in C++. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming Using C++.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Functions in C++. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Functions in C++ MCQs | Page 10 of 30

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Q91.
What is the output of this program?
    #include <iostream>
    using namespace std;
    void func(int x)
    {
        cout << x ;
    }
    int main()
    {
        void (*n)(int);
        n = &func;
        (*n)( 2 );
        n( 2 );
        return 0;
    }
Discuss
Answer: (d).22
Q92.
What is the output of this program?
    #include <iostream>
    using namespace std;
    int n(char, int);
    int (*p) (char, int) = n;
    int main()
    {
        (*p)('d', 9);
        p(10, 9);
        return 0;
    }
    int n(char c, int i)
    {
        cout << c <<  i;
        return 0;
    }
Discuss
Answer: (a).d9 9
Q93.
What is the output of this program?
    #include <iostream>
    using namespace std;
    int func (int a, int b)
    {
        cout << a;
        cout << b;
        return 0;
    }
    int main(void)
    {
        int(*ptr)(char, int);
        ptr = func;
        func(2, 3);
        ptr(2, 3);
        return 0;
    }
Discuss
Answer: (d).compile time error
Q94.
What are the mandatory part to present in function pointers?
Discuss
Answer: (c).data types
Q95.
which of the following can be passed in function pointers?
Discuss
Answer: (c).functions
Discuss
Answer: (b).ptr is array of pointer to function
Q97.
Which keyword is used to define the macros in c++?
Discuss
Answer: (c).#define
Q98.
Which symbol is used to declare the preprocessor directives?

a.

#

b.

$

c.

*

d.

^

Discuss
Answer: (a).#
Q99.
How many types of macros are there in c++?

a.

1

b.

2

c.

3

d.

4

Discuss
Answer: (b).2
Q100.
What is the mandatory preprosessor directive for c++?
Discuss
Answer: (b).#include <iostream>

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