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

C++ General Interview Questions

Questions Answers Views Company eMail

What is the difference between "calloc" and "malloc"?

ADP,

9 20583

What will happen if I allocate memory using "new" and free it using "free" or allocate sing "calloc" and free it using "delete"?

3 9758

What is the Difference between "printf" and "sprintf"?

iSoft, PentaWare, TCS,

7 47621

What is "map" in STL?

2 9197

When to use Multiple Inheritance?

6 10027

Explain working of printf?

8 23761

Explain about profiling?

1 4906

How many lines of code you have written for a single program?

BoA,

4 12985

How to write Multithreaded applications using C++?

Honeywell, TCS, Wipro,

2 11289

Write any small program that will compile in "C" but not in "C++"?

4 11101

What is Memory Alignment?

TCS,

2 9406

Why preincrement operator is faster than postincrement?

5 17108

What are the techniques you use for debugging?

Adtran,

1 7758

How to reduce a final size of executable?

3 15950

Give 2 examples of a code optimization?

4 15141

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Un-Answered Questions { C++ General }

Explain how an exception handler is defined and invoked in a Program.

1222

What is meant by const_cast?

1178

What is setbase c++?

1204

What is function prototyping? What are its advantages?

1148

What is the use of register keyword with the variables?

976

What ANSI C++ function clears the screen a) clrscr() b) clear() c) Its not defined by the ANSI C++ standard

1087

What is c++ similar to?

1250

What are register variables?

1215

What is null pointer and void pointer?

1122

What is setw manipulator in c++?

1123

What language is a dll written in?

1068

What is std :: endl?

1077

What are namespaces in c++?

1139

what you know about c++?

1199

Explain Text Manipulation Routines?

1137

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