C++-Constructors Archives

Why Can't the Default Constructor Be Called with Empty Brackets?

Last Updated: 16 April 2024

In C++, the default constructor is a constructor that has no arguments or default value for all the arguments. If we don't explicitly define a default constructor, the com...read more

How to Implement a Copy Constructor for Deep Copying?

Last Updated: 27 March 2024

In C++, the copy constructor enables us to initialize an object using another object of the same class. In this article, we will learn, how to implement a copy constructor...read more

How to Implement a Copy Constructor in a Derived Class in C++

Last Updated: 27 March 2024

In object-oriented programming, a copy constructor is a special member function that initializes a new object as a copy of an existing object. In this article, we will lea...read more

How to Use Initializer Lists in Constructors in C++?

Last Updated: 01 March 2024

In C++, the initializer list in constructors can be used to initialize member variables with a list of values. In this article, we will learn how to use initializer lists ...read more

How to Define a Move Constructor in C++?

Last Updated: 01 March 2024

In C++, we have amove constructor which is a part of C++11 move semantics and is used to handle resources for temporary and rvalue objects. In this article, we will learn ...read more

How to Handle Incorrect Values in a Constructor?

Last Updated: 12 February 2024

In C++, constructors are used to construct and initialize the object of its class. If incorrect values are given to the constructor, then it may cause inconsistency in a p...read more

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How to Define the Default Constructor in C++?

Last Updated: 29 January 2024

In C++, a constructor that takes no parameters is called a default constructor. A default constructor gets automatically invoked when an object of a class is created witho...read more

The Rule of Five in C++

Last Updated: 17 January 2024

The "Rule of Five" is a guideline for efficient and bug-free programming in C++. The Rule of Five states that,If any of the below functions is defined for a class, then it...read more

Problem with Single Argument Constructor in C++ and How to solve it

Last Updated: 25 February 2022

In C++, if a class has a constructor which can be called with a single argument, then this constructor becomes a conversion constructor because such a constructor allows a...read more

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Constructive Algorithms

Dynamic initialization of object in C++

Last Updated: 31 December 2021

In this article, we will discuss the Dynamic initialization of objects using Dynamic Constructors.Dynamic initialization of object refers to initializing the objects at a ...read more

Dynamic Memory Allocation

new and delete

C++ Programs

Technical Scripter 2020

Life cycle of Objects in C++ with Example

Last Updated: 04 August 2021

In Object Oriented Programming, Objects are the instances of a class which has its own state(variables) and behavior(methods).Every class has two special methods related w...read more

Move Constructors in C++

Last Updated: 08 October 2024

A move constructor is a special type of constructor in C++ that is used to create a new object from the already existing object of the same type, but instead of making a c...read more

Difference Between Constructor and Destructor in C++

Last Updated: 08 May 2025

ConstructorA constructor is a member function of a class that has the same name as the class name. It helps to initialize the object of a class. It can either accept the a...read more

C++ | Constructors | Question 17

Last Updated: 28 June 2021

[sourcecode language="C"]#includeiostreamusing namespace std;class Test{public: Test(Test t) { } Test() { }};Test fun(){ cout fun() Called\n; Test t; ...read more

C++ | Constructors | Question 16

Last Updated: 28 June 2021

Predict the output of following program?[sourcecode language="CPP"]#include iostreamusing namespace std;class Test{private: int x;public: Test(int i) { x =...read more