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 10878

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 6068

inline function is there in c language?

4 7558

what is an inline function?

TCS,

2 4523

where do we use structure pointer?

1 3535

where do we use volatile keyword?

1 4126

what is constant pointer?

3 5555

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

2 4510

code for bubble sort?

1 3462

code for selection sort?

1 3961

code for quick sort?

1989

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

3 5940

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

HP,

2 9722

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 5440

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

2 7112

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Un-Answered Questions { C }

can any one tel me wt is the question pattern for NIC exam

1925

What is 1d array in c?

1032

Which programming language is best for getting job 2020?

987

my project name is adulteration of chille powder.how can i explain it to the hr when he asks me about the project?

1529

Should I learn c before c++?

1181

Explain what is the difference between #include and #include 'file' ?

971

How can I find out the size of a file, prior to reading it in?

1103

What does malloc () calloc () realloc () free () do?

1006

What is difference between arrays and pointers?

1017

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

1424

What is main () in c?

1015

How can I find the modification date of a file?

1221

What is structure padding in c?

1060

Write a program to reverse a string.

1027

Why malloc is faster than calloc?

1017

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