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

C++ General Interview Questions

Questions Answers Views Company eMail

Why is it necessary to use a reference in the argument to the copy constructor?

1125

What is a template in c++?

3 1870

You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. New() and malloc()

1170

Explain how would you handle a situation where you cannot call the destructor of a local explicitly?

978

Can we declare a base-class destructor as virtual?

1020

What is the auto keyword good for in c++?

1197

What is the word you will use when defining a function in base class to allow this function to be a polimorphic function?

1185

What are proxy objects in c++?

1195

Specify some guidelines that should be followed while overloading operators?

1220

How a macro differs from a template?

1182

What is the two main roles of operating system?

1046

How do you write a function that can reverse a linked-list?

1125

Describe the advantages of operator overloading?

1051

How are the features of c++ different from c?

1112

How to allocate memory dynamically for a reference?

1056

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Un-Answered Questions { C++ General }

What are virtual constructors/destructors?

1030

What do you mean by funtion prototype?

1087

What is object in c++ wikipedia?

1012

Why is c++ difficult?

1069

Should I learn c or c++ or c#?

1014

what kind of projects are suitable for c and c++

1051

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

1184

Write a program to find the Fibonacci series recursively.

1076

What is the difference between strcpy() and strncpy()?

1152

What it is and how it might be called (2 methods).

1190

What is the difference between new() and malloc()?

2093

What does floor mean in c++?

1077

Write about a nested class and mention its use?

1109

can any one help to find a specific string between html tags which is changed to a sting.. weather.html looks (for location) is somewhere #include #include #include using namespace std; string find_field(string myPage,string); int main (void) { string page, line, location, temperature; ifstream inputFile("weather.xml"); while(getline(inputFile, line)) { page.append(line); line.erase(); } // Now page is a string that contains the whole xml page // Here you need to write something that finds and // extracts location and temperature from the XML // data in the string page and stores them in // the strings location and temperature respectively location=find_field(page,"location"); temperature=find_field(page,"temp_c"); cout << "Location: "<

2059

What does the nocreate and noreplace flag ensure when they are used for opening a file?

1123

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