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

Why is the C language important?
C language is a high-level, general-purpose programming language. It provides a straightforward, consistent, powerful interface for programming systems. That's why the C language is widely used for developing...
Ganesh
0 0
5
Why is there no C-- language that simplifies the C language?
C++ stands for additional functionality and the original programming language was C. There is no downgraded version of C so there is no C--.
Komal
0 0
7
hi sir c progarm codeing how to write sir........
take any C book then u can learn more...
Suryateja
What is the benefit of using enum to declare a constant?
ENUMS.. Can give numerical values for Sunday, Monday,... Easy to use in coding... Makes the program more readable/ understandable, than using 1,2,3.. Etc.
Sita
0 0
7
What does the modulus operator do?
It provides you the remainder of an integer value.
Sumit

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

Ask a Question

Related Lessons

10 Tips to improve your learning
1. Have a quick revision of topics that you have read in past three days before you start studying a new topic. 2. Make your own notes containing the summary of the topic. 3. Allot proper timing for...

Seemakurthy Hupesh Naga Ketan

0 0
0
Storage classes in c
Storage classes determine the scope and life time of a variable. Scope is defined as the region over which the defined variable is accessible. Lifetime is the time during which the value of a variable...

Swetha K.

0 0
0
Find out the Output of the following with reason and get C Language Training fess less by 10%
1. void main() { clrscr(); printf(5+"Beautifull"); getch(); } 2. void main() { int a=50; clrscr(); ...

P K Subudhi

1 0
0
Difference Between C Language and C Program
C Language: C Language is structured, high level and machine independent language. C Program: C Program is the collection of functions that are supported by C library.
S

Shashwat Kumar

0 0
0
Internet of Things, Social Media Becoming Part of E-Discovery Landscape
The days when e-discovery consisted of handing over copies of e-mails to address Freedom of Information Act (FOIA) requests, compliance regulations or other legal obligations are over. Now, it's just as...

Rajesh N V

3 0
1

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 Ghaziabad
C Language Classes in Gurgaon

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