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

STL (140)
OOPS (873)
C++ General (2409)

C++ Interview Questions

Questions Answers Views Company eMail

tell about sorted linked list

1 4081

You have to take 2 arrays of length 10. Input the values of array 1 from the user. Then copy the values of array 1 to array 2 in ascending order For example if user enters 9, 5, 6, 8, 1, 0, 2, 7, 4, 3 then copy the smallest element i.e. 0 first followed by 1, 2 and so

1 3877

what is oppes

2 5065

I am DeePu sotware engineer working with EMC corporation ,recently I had attended mcafee interview . Their questions were at heights of stupidity , I don't know what they want , I am a developer with 4 year experienced .I am listing the questions asked 1:What is the flag in g++ to avoid structure padding 2:In wht order parameters are passed to stack 3:How you will edit code segment of an exe

1 7185

what is the difference between class to class type conversion and copy constructor ?

2 6155

class A { public: void f(); protected: A() {} A(const A&){} }; Examine the class declaration shown above. Why are the default and copy constructors declared as protected? 1. To ensure that A cannot be created via new by a more derived class 2. To ensure that A cannot be copied 3. To ensure that A cannot be used as a base class except when public inheritance has been used 4. To ensure that A cannot be created/copied outside the inheritance chain 5. To ensure that A cannot be instantiated as a static variable

1 8028

Write 7 differences between "Public" function and "Private" function?

IBM, Wipro,

2 16858

what do you mean by static member variable?

2 6229

What is a unary operator?

5 8699

Conversion from a basic type to a class type may be achieved using______________

HCL,

5 21842

A file pointer always contains the __________ of the file

5 12132

difine hierarchical inheritance.

ASD Lab, TCS,

9 28162

what is use to destroy an object? illustrate.

TCS,

5 8207

What is name mangling?

3 6867

What is dangling pointers?and what is memory leak?

5 43187

Un-Answered Questions { C++ }

What are oops functions?

1010

What is basic concept of oop?

1164

What is iterator in c++?

1103

Explain the difference between realloc() and free() in c++?

1012

What are built-in functions? What is the syntax for the definition?

1076

Differentiate between a pointer and a reference with respect to c++.

1240

Name the debugging methods that are used to solve problems?

1081

Define friend function.

1043

Evaulate: 22%5 a) 2 b) 4 c) 0

1086

How do I convert a stl file?

1101

What is difference between array and vector in c++?

1028

If I is an integer variable, which is faster ++i or i++?

1063

What is ctime c++?

1125

Which is best ide for c++?

1011

Is there any error below, its a code to delete all entires from a map #include #include iostream.h int main() { int i =0; map TestMap; while(i<3) { TesMap.insert(TestMap::value_type(i,Test)); i++; } typedef map :: iterator mapIter =TestMap.begin(); if(mapIter!=TestMap.end()) { TestMap.erase(mapItrer); ++mapIter; } return 0; }

2387

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