Navi's Blog

Container Adaptors

stack, queue and priority_queue

Container Adaptors Container adaptors provide a different interface for sequential containers. They do not have their own data structures. Instead, all their methods are implemented by the depende...

Posted by Navi on May 5, 2020

Sequence Containers

vector, deque and list

Sequence Containers Sequence containers implement data structures which can be accessed sequentially. There are three common sequence containers in STL: vector, deque and list. vector #include &...

Posted by Navi on May 4, 2020

Four Kinds of Type Conversions

What should type conversions be like in modern C++

Four Kinds of Type Conversions In C, we can cast a variable into a different type in such way: void main() { double a = 10.0; int b = (int)a; } However, this compulsory type conversion ...

Posted by Navi on May 3, 2020

Diamond Problem

A common issue in multiple inheritance

Diamond Problem The benefit of multiple inheritance is that more code can be reused in this inheritance structure. But it brings up another problem, which is known as diamond problem. Let’s look a...

Posted by Navi on May 2, 2020

Virtual Inheritance and Virtual Base Classes

What must be mastered in multiple inheritance

Virtual Inheritance and Virtual Base Classes Multiple inheritance means that a class can inherit from multiple base classes. Virtual Inheritance is a kind of inheritance that is widely used in mul...

Posted by Navi on May 1, 2020

Frequently Asked Interview Questions - Polymorphism

Common questions about polymorphism

Frequently Asked Interview Questions: Polymorphism Question 1 Here we defined a base class Animal, which has a member variable _name and a virtual function bark(). Then we defined three derived c...

Posted by Navi on April 30, 2020

Abstract Classes

Classes with pure virtual functions

Abstract Classes Let’s take another look at what we wrote earlier: class Animal { public: Animal(string name) : _name(name) {} virtual void bark() {} protected: string _name; }; clas...

Posted by Navi on April 30, 2020

Understanding Polymorphism

Why polymorphism is important in object-oriented programming

Understanding Polymorphism We already know that polymorphism is a key feature of Object-Oriented Programming, but what exactly is polymorphism? Why polymorphism is important? There are two kinds ...

Posted by Navi on April 29, 2020

More about Virtual Functions

Other things worth mentioning about virtual functions

More about Virtual Functions More about virtual Now we already learn the ability of virtual. But is there any function that cannot be implemented as virtual function? Notice that a virtual functi...