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

C Interview Questions

Questions Answers Views Company eMail

Discuss similarities and differences of Multiprogramming OS and multiprocessing OS?

TCS,

4 11076

can we declare a function inside the structure? ex: struct book { int pages; float price; int library(int,float); }b; is the above declaration correct? as it has function declaration?

2 6200

inline function is there in c language?

4 7747

what is an inline function?

TCS,

2 4638

where do we use structure pointer?

1 3631

where do we use volatile keyword?

1 4214

what is constant pointer?

3 5708

what is the use of bitfields & where do we use them?

2 4642

code for bubble sort?

1 3567

code for selection sort?

1 4060

code for quick sort?

2039

code for concatination of 2 strings with out using library functions?

3 6116

how 2 compile & execute c program with out using editor?

HP,

2 9904

You have an int array with n elements and a structure with three int members. ie struct No { unsigned int no1; unsigned int no2; unsigned int no3; }; Point1.Lets say 1 byte in the array element is represented like this - 1st 3 bits from LSB is one number, next 2 bits are 2nd no and last 3 bits are 3rd no. Now write a function, struct No* ExtractNos(unsigned int *, int count) which extracts each byte from array and converts LSByte in the order mentioned in point1.and save it the structure no1, no2, no3. in the function struct No* ExtractNos(unsigned int *, int count), first parameter points to the base address of array and second parameter says the no of elements in the array. For example: if your array LSB is Hex F7 then result no1 = 7, no2 = 2, no3 = 7. In the same way convert all the elements from the array and save the result in array of structure.

Qualcomm,

2 5590

wat s the meaning of (int *)p +4;

2 7289

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Un-Answered Questions { C }

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

1158

praagnovation

2287

Why ca not I do something like this?

1015

In a byte, what is the maximum decimal number that you can accommodate?

1142

In c programming write a program that will print 10 multiples of 3 except 15,18,21 using looping

1516

What is enumerated data type in c?

1085

What is ambagious result in C? explain with an example.

2638

How can you increase the size of a statically allocated array?

1081

How can you find the exact size of a data type in c?

1005

What are 'near' and 'far' pointers?

1045

Can a function be forced to be inline? Also, give a comparison between inline function and the C macro?

1102

What is a memory leak? How to avoid it?

1350

Can a variable be both static and volatile in c?

1044

hi folks i m approching for h1 b interview on monday 8th of august at montreal and i m having little problem in my approval notice abt my bithdate my employer has made a mistake while applying it is 12th january and istead of that he had done 18 the of january do any body have any solution for that if yes how can i prove my visa officer abt my real birthdate it urgent please let me know guys thaks dipesh patel

1882

What is 1f in c?

2664

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