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

What is the use of register keyword with the variables?

980

Out of fgets() and gets() which function is safe to use?

1201

What is the size of integer variable?

1104

What do you mean by const correctness?

1143

We use library functions in the program, in what form they are provided to the program?

1151

Which format specifier is used for printing a pointer value?

1117

What do you mean by funtion prototype?

1155

What are the uses of pointers?

1142

What do you mean by function pointer?

1170

Describe linkages and types of linkages?

1049

Is arr and &arr are same expression for an array?

1110

What is the use of bit fields in structure declaration?

1036

What is the prototype of printf function?

1241

Eplain extern keyword?

1100

What is the difference between structures and unions?

1122

Un-Answered Questions { C++ }

What is a stack c++?

1058

Why do we use polymorphism?

1135

What is polymorphism in oops with example?

1113

What are pointers used for c++?

1109

I want to write a C++ language program that: 1. Reads in the size of a square from the screen; 2. Prints a hollow square of that size out of “-“, “|” and blanks on screen; 3. Prints the same hollow square onto a text file. The program should work for squares of all side sizes between 1 and 20.

2891

What is the difference between function overloading and operator overloading?

1185

Are vectors passed by reference c++?

1059

What are the different types of stl containers?

1218

Can a function take variable length arguments, if yes, how?

1076

Write a program that takes a 5 digit number and calculates 2 power that number and prints it.

2638

Can we sort map in c++?

1088

What are the types of container classes?

1239

What is the role of C++ shorthand's?

1333

Is swift faster than go?

1151

What is new keyword in oops?

1105

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