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

C Interview Questions

Questions Answers Views Company eMail

Are the outer parentheses in return statements really optional?

1159

Are pointers really faster than arrays?

1081

How do I swap bytes?

1120

How can I get random integers in a certain range?

1125

How can I determine whether a machines byte order is big-endian or little-endian?

1124

Can I initialize unions?

1090

How can this be legal c?

1148

How can I call system when parameters (filenames, etc.) Of the executed command arent known until run time?

1157

What should malloc(0) do?

1184

What is the right type to use for boolean values in c?

1085

How can I delete a file?

1123

I came across some code that puts a (void) cast before each call to printf. Why?

1267

What should malloc(0) do? Return a null pointer or a pointer to 0 bytes?

1133

Array is an lvalue or not?

1188

What is the difference between memcpy and memmove?

1085

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Un-Answered Questions { C }

Explain what are run-time errors?

1141

What are the ways to a null pointer can use in c programming language?

1194

find the sum of two matrices and WAP for it.

1194

What does s c mean on snapchat?

1186

If one class contains another class as a member, in what order are the two class constructors called a) Constructor for the member class is called first b) Constructor for the member class is called second c) Only one of the constructors is called d) all of the above

1107

Why is void main used?

1145

Is it possible to execute code even after the program exits the main() function?

1393

what is diffrence between linear and binary search in array respect to operators?what kind of operator can be used in both seach methods?

1918

Is using exit() the same as using return?

1460

Explain why c is faster than c++?

1124

Write a program to produce the following output: 1 2 3 4 5 6 7 8 9 10

15888

What is dangling pointer in c?

1330

Explain modulus operator.

1090

Write a program to check palindrome number in c programming?

1066

How can I open files mentioned on the command line, and parse option flags?

1104

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