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?

1117

Are pointers really faster than arrays?

1029

How do I swap bytes?

1076

How can I get random integers in a certain range?

1068

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

1065

Can I initialize unions?

1044

How can this be legal c?

1087

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

1114

What should malloc(0) do?

1125

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

1036

How can I delete a file?

1067

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

1220

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

1080

Array is an lvalue or not?

1129

What is the difference between memcpy and memmove?

1027

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Un-Answered Questions { C }

plz let me know how to become a telecom protocol tester. thank you.

2191

What does the c in ctime mean?

1096

What are local static variables? How can you use them?

1149

What is scope of variable in c?

1046

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

1071

What is a header file?

1081

Can two or more operators such as and be combined in a single line of program code?

1375

Explain the difference between malloc() and calloc() in c?

1051

Write an efficient algo and C code to shuffle a pack of cards.. this one was a feedback process until we came up with one with no extra storage.

1065

What is main () in c?

1074

Explain what is the difference between a string and an array?

1169

What are the types of data files?

1206

What are local static variables?

1154

what value is returned to operating system after program execution?

2122

What is a pragma?

1130

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