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?

1068

Are pointers really faster than arrays?

978

How do I swap bytes?

1030

How can I get random integers in a certain range?

1026

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

1018

Can I initialize unions?

997

How can this be legal c?

1057

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

1045

What should malloc(0) do?

1066

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

1000

How can I delete a file?

1020

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

1168

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

1034

Array is an lvalue or not?

1080

What is the difference between memcpy and memmove?

984

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Un-Answered Questions { C }

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

1295

Can you please explain the difference between strcpy() and memcpy() function?

1029

How to establish connection with oracle database software from c language?

2161

main() { inta=10,b=20; a>=5?b=100:b=200; printf("%d ",b); }

1475

in multiple branching construct "default" case is a) optional b) compulsarily c) it is not include in this construct d) none of the above

1028

What is an example of structure?

988

What are structural members?

966

What does the error message "DGROUP exceeds 64K" mean?

1182

What is ## preprocessor operator in c?

1039

Why c is faster than c++?

990

Explain the term printf() and scanf() used in c language?

1014

Why does this code crash?

1034

Are the variables argc and argv are always local to main?

984

Can you pass an entire structure to functions?

1087

How to check whether string is a palindrome, WITHOUT USING STRING FUNCTIONS?

16622

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