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

C++ General Interview Questions

Questions Answers Views Company eMail

How the compilers arranges the various sections in the executable image?

1 4284

What issue do auto_ptr objects address?

2 6889

Can we declare destructor as static? Explain?

3 9153

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

Honeywell,

10 21637

How can you quickly find the number of elements stored in a a) static array b) dynamic array ?

Lucent,

5 14743

How can you find the nodes with repetetive data in a linked list?

Lucent,

1 8608

Why is it difficult to store linked list in an array?

Infosys, Lucent,

6 23380

What is Pure Virtual Function? Why and when it is used ?

Lucent, Sona,

10 79716

How do you know that your class needs a virtual destructor?

Lucent,

5 11639

Why do C++ compilers need name mangling?

Lucent,

3 10753

How can you force instantiation of a template?

ABC, Amazon,

1 6918

Can you explain the term "resource acquisition is initialization?"

Amazon,

1 6133

Explain the ISA and HASA class relationships. How would you implement each in a class design?

3 13420

1. What does the following do: void afunction(int *x) { x=new int; *x=12; } int main() { int v=10; afunction(&v); cout<

Quark,

5 10893

How long does this loop run: for(int x=0; x=3; x++) a) Never b) Three times c) Forever

Datavance, Quark, VEL, Wipro,

17 56645

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Un-Answered Questions { C++ General }

What is the importance of mutable keyword?

1024

What is the use of namespace std in C++?

1071

Why do we use string in c++?

942

Do you know about C++ 11 standard?

1090

Why do we learn c++?

968

Define stacks. Provide an example where they are useful.

1020

When should I use unitbuf flag?

1018

What is the difference between #define debug 0 and #undef debug?

1190

What is null and void pointer?

1062

What is a storage class? Mention the storage classes in c++.

1026

Do inline functions improve performance?

1069

What are smart pointers?

2288

When must you use a pointer rather than a reference?

1042

What are the two main components of c++?

1103

Reverse the Linked List. Input: 1->2->3->4->5->NULL Output: 5->4->3->2->1->NULL

812

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