Question

What is the output of this C code?

#include <stdio.h>
    struct p
    {
        struct p *next;
        int x;
    };
    int main()
    {
        struct p *p1 = calloc(1, sizeof(struct p));
        p1->x = 1;
        p1->next = calloc(1, sizeof(struct p));
        printf("%d\n", p1->next->x);
        return 0;
    }

a.

Compile time error

b.

1

c.

Somegarbage value

d.

0

Posted under C Programming

Answer: (d).0

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. What is the output of this C code?

Add Comment

Similar Questions

Discover Related MCQs

Q. calloc initialises memory with all bits set to zero.

View solution

Q. realloc(ptr, size), where size is zero means

View solution

Q. function fabs defined math.h header file takes argument of type integer

View solution

Q. log(x) function defined in math.h header file is

View solution

Q. What type of inputs are accepted by mathematical functions?

View solution

Q. In linux, apart from including math header file, the program is successfully executed by which of the following?

View solution

Q. Which of the following is not a valid mathematical function?

View solution

Q. Which of the following mathematical function requires 2 parameter for successful function call?

View solution

Q. Which mathematical function among the following does NOT require int parameters?

View solution

Q. sin(x) returns

View solution

Q. cos(x) returns

View solution

Q. Which among the following mathematical function do not have a “double” return-type?

View solution

Q. The function srand(unsigned)

View solution

Q. Which is the best way to generate numbers between 0 to 99?

View solution

Q. The correct way to generate numbers between minimum and maximum(inclusive) is _________________

View solution

Q. rand() and srand() functions are used

View solution

Q. What is the return type of rand() function?

View solution

Q. Which of the following can be used for random number generation?

View solution

Q. Which of the following snippet will effectively generate random numbers?

View solution

Q. Which among the following is correct function call for rand and random?

View solution

View All MCQs on C Programming

Suggested Topics

Are you eager to expand your knowledge beyond C Programming? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

Digital Image Processing (DIP)

Delve into the techniques of enhancing digital images with our Digital Image...

SQL Server

Master Microsoft's database server with our SQL Server MCQs. Topics cover database...

Data Science

Discover the fascinating world of extracting insights from data with our Data Science...

Computer Hardware

Explore the tangible components of computers with our Computer Hardware MCQs. Learn...

Java Programming

Level up your coding skills with our Java Programming MCQs. From object-oriented...

Python

Dive into one of the most popular languages with our Python MCQs. Understand...

Cyber Security

Understand the fundamentals of safeguarding digital assets with our Cyber Security...

Microprocessor

Understand the heart of your computer with our Microprocessor MCQs. Topics include...

Systems Programming

Decode low-level programming with our Systems Programming MCQs. These questions delve...