What will print out? main() { char *p1=?name?; char *p2; p2=(char*)malloc(20); memset (p2, 0, 20); while(*p2++ = *p1++); printf(?%sn?,p2); }

Asked by Last Modified  

4 Answers

Learn C Language

Follow 2
Answer

Please enter your answer

Vinod Kulkarni

Freelance technical trainer / consultant (Embedded systems, Automation / Scripting) : C, Linux, Embedded systems, python, perl, tcl

Copying will happen but pointer will increment and point at the end, so will not print anything as you have already hit at the end.
Comments
Dislike Bookmark

p2 = empty string print statement will output = n
Comments
Dislike Bookmark

Teacher

int main() { char *p1="name"; printf("%s\n",p1); char *p2; p2=(char*)malloc(20); // memory allocate size 20 byte,initialize with garbage value that,s why you use memset to clear memory memset (p2, 0, 20);...
read more
int main() { char *p1="name"; printf("%s\n",p1); char *p2; p2=(char*)malloc(20); // memory allocate size 20 byte,initialize with garbage value that,s why you use memset to clear memory memset (p2, 0, 20); //use memset to clear memory while(*p2++=*p1++) //when pointer P2 point to NULL while loop is terminated { printf("%s\n",p2); //NULL value print } } ans is NULL read less
Comments
Dislike Bookmark

C++, C, Embedded, Linux Expert

Out put of this will be n because in while loop you are assigning the value p2 from p1 and incriminating the both pointers p1 and p2 due to this your pointers p1 and p2 will point to the null. So when you try to pointer p2 it will point to nothing and it will print only n.
Comments
Dislike Bookmark

View 2 more Answers

Related Questions

If one leaves a lot of space in a C language code, will it require more space in a hard disk and RAM?
Head files tells system, how to deal with different functions with program such as printf(), scanf() , getche() etc. so you must have reference to it.
Abhishek
0 0
5
Is it possible to write big safe programs in C++?
yes. C++ is generally used to write system software. For example windows operating system are writeen in C++. Most of the operating system, device driver and antivirus programs are written by using C++.
Sapna
0 0
6
What are the control statements in C language?
Control statements in C are constructs that allow the program to make decisions and control the flow of execution based on certain conditions. The primary control statements in C include if-else statements,...
Jitender
0 0
6
In how many days can we learn the C language?
Around one month and depends upon you how much time you give.
Ravi Shankar
0 0
9
Why is the C language important?
due to its efficiency, portability, and widespread use in system programming, embedded systems, and operating system development.
Soumya
0 0
6

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Programming in C/C++ (demo)

K. Kumar

0 0
0
Be prepared to get trained--init
Before starting the training,students must be mentally prepared for acceptance of new knowledge. Students must attend training with open minded forgetting the position they are working.This will help...
S

Smartnub Softsolutions

0 0
0
Why Indexing Should Start From Zero In Array ?
Why numbering should start at zero? To denote the subsequence of natural numbers 2, 3, ..., 12 without the pernicious three dots, fourconventions are open to usa) 2 ≤ i < 13b) 1 < i ≤ 12c)...

Sunil Yadav

0 0
0
C, Cpp, Java, Python, Javascript Programming Languages
Learning C is as good as Learning a Natural Language(such as English, Hindi, Telugu, Tamil etc) We use Natural Languages to communicate with humans whereas we use Programming Languages such as C, Cpp,...
V

Vamshi

0 0
0
C Program-Error Handling
//Header files #include<stdio.h>#include<conio.h>#include<stdlib.h> //Main function void main(){ int dividend=10; int divisor=0; int quotient; //Function for clearing screen clrscr(); ...

Salim Ahmed Ansari

0 0
0

Recommended Articles

Lasya Infotech: An educational Training...

Lasya Infotech is a Hyderabad based IT training institute founded in 2016 by O Venkat. Believing in his innovation, passion and persistence and with a diverse blend of experience, he started his brainchild to deliver exemplary professional courses to aspiring candidates by honing their skills. Ever since the institute envisions...

Read full article >

Brilliant Academy, a reputed B. Tech Tuition...

Brilliant Academy is one of the reputed institutes for B.Tech tuition classes. This institute is specialised in delivering quality tuition classes for B.E, Engineering - all streams and Engineering diploma courses. Incorporated in 2012, Brillant Academy is a brainchild of Mr Jagadeesh. The main motto of the academy is to...

Read full article >

Why Should you Become an IT Consultant

Information technology consultancy or Information technology consulting is a specialized field in which one can set their focus on providing advisory services to business firms on finding ways to use innovations in information technology to further their business and meet the objectives of the business. Not only does...

Read full article >

Make a Career in Mobile Application Programming

Almost all of us, inside the pocket, bag or on the table have a mobile phone, out of which 90% of us have a smartphone. The technology is advancing rapidly. When it comes to mobile phones, people today want much more than just making phone calls and playing games on the go. People now want instant access to all their business...

Read full article >

Find C Language Classes near you
C Language Classes in Bangalore
C Language Classes in Hyderabad
C Language Classes in Delhi
C Language Classes in Pune
C Language Classes in Chennai
C Language Classes in Mumbai
C Language Classes in Kolkata
C Language Classes in Noida
C Language Classes in Gurgaon
C Language Classes in Ghaziabad

Looking for C Language Classes?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you