C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C Interview Questions

Questions Answers Views Company eMail

what are two categories of clint-server application development ?

1 3868

WRITE A PROGRAM TO PRINT THE FOLLOWING OUTPUTS USING FOR LOOPS. A) * B) ***** *** * * ***** * * *****

2 15757

difference between function & structure

Verizon,

9 61266

what is the difference b/w compiler and debugger?

Assurgent,

2 8524

Write an implementation of “float stringToFloat(char *str).” The code should be simple, and not require more than the basic operators (if, for, math operators, etc.). • Assumptions • Don’t worry about overflow or underflow • Stop at the 1st invalid character and return the number you have converted till then, if the 1st character is invalid return 0 • Don’t worry about exponential (e.g. 1e10), instead you should treat ‘e’ as an invalid character • Write it like real code, e.g. do error checking • Go though the string only once • Examples • “1.23” should return 1.23 • “1a” should return 1 • “a”should return 0

Qualcomm,

6 10829

a) Identify the following declarations. Ex. int i (integer variable) float a[l0](array of 10 real nos) int (*f())() void *f int (*f()) [] void *f int f[] [] [] char *(*f) () int (*f[]) [] float(*f) [] [] float **f int ******f

TCS,

2157

different between overloading and overriding

3 6332

What is memmove?

Oracle,

1 6857

What is a class?

3 5645

What is an object?

5 7048

When is an interface "good"?

1 3719

What is encapsulation?

2 5617

How does C++ help with the tradeoff of safety vs. usability?

1 4553

How can I prevent other programmers from violating encapsulation by seeing the private parts of my class?

1 3861

code snippet for creating a pyramids triangle ex 1 2 2 3 3 3

4 7309

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Un-Answered Questions { C }

The postoder traversal is 7,14,3,55,22,5,17 Then ur Inorder traversal is??? please help me on this

3584

Explain heap and queue.

1089

Write the syntax and purpose of a switch statement in C.

1109

Differentiate abs() function from fabs() function.

1020

How does pointer work in c?

1126

where are auto variables stored? What are the characteristics of an auto variable?

1076

What is function prototype in c language?

1034

How can I convert a number to a string?

1196

What are the restrictions of a modulus operator?

1127

How important is structure in life?

1090

An arrangement of information in memory in such a way that it can be easily accessed and processed by a programming language a) string b) data structure c) pointers d) array

1140

Find duplicates in a file containing 6 digit number (like uid) in O (n) time.

3250

How can I insert or delete a line (or record) in the middle of a file?

1022

What is the main difference between calloc () and malloc ()?

1157

What is far pointer in c?

1315

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