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 19914

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

3 9487

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

iSoft, PentaWare, TCS,

7 47027

What is "map" in STL?

2 8978

When to use Multiple Inheritance?

6 9589

Explain working of printf?

8 23110

Explain about profiling?

1 4728

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

BoA,

4 12620

How to write Multithreaded applications using C++?

Honeywell, TCS, Wipro,

2 11084

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

4 10789

What is Memory Alignment?

TCS,

2 9174

Why preincrement operator is faster than postincrement?

5 16700

What are the techniques you use for debugging?

Adtran,

1 7593

How to reduce a final size of executable?

3 15570

Give 2 examples of a code optimization?

4 14811

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Un-Answered Questions { C++ General }

Is it possible to provide default values while overloading a binary operator?

1213

What will strcmp("Astring", "Astring"); return a) A positive value b) A negative value c) Zero

1056

how to connect with oracle 9i with server in socket program in c/c++

2286

What is an inline function in c++?

1073

When do we use copy constructors?

1029

What is the use of function pointer?

980

Is java a c++?

981

How compile and run c++ program in turbo c++?

1115

What is the type of 'this' pointer?

976

What are the four partitions in which c++ compiler divides the ram?

1173

Is map thread safe c++?

1025

Will the following program execute?

994

How do pointers work?

1133

Should the this pointer can be used in the constructor?

975

Is c++ the best programming language?

964

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