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 20296

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

3 9626

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

iSoft, PentaWare, TCS,

7 47360

What is "map" in STL?

2 9091

When to use Multiple Inheritance?

6 9824

Explain working of printf?

8 23472

Explain about profiling?

1 4816

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

BoA,

4 12833

How to write Multithreaded applications using C++?

Honeywell, TCS, Wipro,

2 11202

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

4 10964

What is Memory Alignment?

TCS,

2 9312

Why preincrement operator is faster than postincrement?

5 16931

What are the techniques you use for debugging?

Adtran,

1 7693

How to reduce a final size of executable?

3 15799

Give 2 examples of a code optimization?

4 15011

Post New C++ General Questions

Un-Answered Questions { C++ General }

Describe the role of the c++ in the tradeoff of safety vs. Usability?

1213

When can I use a forward declaration?

1102

How many types of modularization are there in c++?

1081

What is guard code in c++?

1171

What is the main purpose of c++?

1065

What does the following code do: int c=0; cout< a) Undefined *Updated* b) 01 c) 00

1072

What is wrapper class in c++?

1120

What is a list c++?

1109

If we want that any wildcard characters in the command line arguments should be appropriately expanded, are we required to make any special provision? If yes, which?

1510

Will c++ be replaced?

1046

Explain function overloading and operator overloading.

1077

What are the comments in c++?

989

What is do..while loops structure?

1150

Write a program in c++ to print the numbers from n to n2 except 5 and its multiples

2488

what you know about c++?

1158

For More Un-Answered { C++ General } Questions Click Here