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  

Follow 2
Answer

Please enter your answer

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

p2 = empty string print statement will output = n
Comments

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

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

View 2 more Answers

Related Questions

How is this site helpful for me? I am looking for a job in the field of Programming in C.
C programming is used mostly for developing drivers, embedded softwares, compilers and more importantly the operating systems themselves for example UNIX OS which is completely written in C language. So...
Umang
How do I learn C programming by videos or books?
BOOKS AND PRACTICE by far remain the best way for learning any language ....
Fgrefg
0 0
7
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
Which is the best book for understanding concepts of c language?
One highly recommended book for understanding the concepts of the C language is "C Programming Absolute Beginner's Guide (3rd Edition)" by Perry and Miller. This book is well-suited for beginners and provides...
Chetana
0 0
7
What is the fee for learning C Language?
In C lang course ,there is not only basics it also having whole package to complete the task and course.cost may be it's depends upon the institute n teaching level
Sk.

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

Ask a Question

Related Lessons

Compiler vs Interpreter
Compiler Interpreter Convert all the code into binary format and execute. Convert one statement at a time and execute, then Convert next statement and execute. After conversion, source...

Working with C/C++ applications
Inorder to learn C and C++ programming languages one can work with various editors available.To name a few are the most popular one is turbo c++, DEV C++, Eclipse, NetBeans. Here are the screen shots...

Java and C trainer
Always think any conspect with real-time example like Object -- object must have states and behaviour then only we will call that thing is Object like fan is Object (rotating,color)

Can we store different data types in a stack?
Yesterday, one of my Facebook friend asked me this question. My answer is "yes", and in this post I will discuss how could we do this.I am a great supporter of working with unions and I will be using union...

What Would Be Life Cycle Of A Fresher After Campus In An IT Company?
1. Basic Technical Training: Since freshers are not subject matter experts so gone through 3 - 6 months basic technical training within Organization. 2. Technical Assessment: HR sends freshers to various...

Recommended Articles

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 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 >

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 >

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 >

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