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?

1033

How do I swap bytes?

1076

How can I get random integers in a certain range?

1069

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

1065

Can I initialize unions?

1045

How can this be legal c?

1089

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?

1039

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?

1130

What is the difference between memcpy and memmove?

1030

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Un-Answered Questions { C }

a parameter passed between a calling program and a called program a) variable b) constant c) argument d) all of the above

1113

Why is c so powerful?

1118

what do you mean by inline function in C?

1058

How can I write data files which can be read on other machines with different word size, byte order, or floating point formats?

1035

What are types of structure?

1121

What is the use of pointers in C?

1084

What is %d called in c?

1236

Explain what is output redirection?

1195

What are the advantages and disadvantages of a heap?

1215

How are pointers declared in c?

1062

What is sorting in c plus plus?

980

Function calling procedures? and their differences? Why should one go for Call by Reference?

1085

What is difference between main and void main?

1214

how should functions be apportioned among source files?

1103

Which is best book for data structures in c?

1093

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