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?

1156

Are pointers really faster than arrays?

1081

How do I swap bytes?

1117

How can I get random integers in a certain range?

1123

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

1124

Can I initialize unions?

1087

How can this be legal c?

1145

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

1155

What should malloc(0) do?

1179

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

1085

How can I delete a file?

1122

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

1266

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

1130

Array is an lvalue or not?

1186

What is the difference between memcpy and memmove?

1082

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Un-Answered Questions { C }

What are valid signatures for the Main function?

1290

What is static memory allocation?

1236

What is #define size in c?

1263

What does do in c?

1116

What language is c written?

1098

What is equivalent to ++i+++j?

1145

List some of the static data structures in C?

1240

The difference between printf and fprintf is ?

1337

A collection of functions,calls,subroutines or other data a) library b) header files c) set of files d) textfiles

1229

Once I have used freopen, how can I get the original stdout (or stdin) back?

1119

What is scope rule in c?

1122

What is hash table in c?

1075

How are strings stored in c?

1074

What is a class c rental property?

1144

program to find error in linklist.(i.e find whether any node point wrongly to previous nodes instead of next node)

2143

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