It is must to provide a function body for pure virtual destructor as derived class’s destructor is called first before the base class destructor, so if we do not provide a function body, it will find out nothing to be called during object destruction and error will occur.
Read moreWhat is virtual destructor in C++?
A virtual destructor is used to free up the memory space allocated by the derived class object or instance while deleting instances of the derived class using a base class pointer object .
Read moreDoes C++ have virtual destructor?
Virtual destructors in C++ are used to avoid memory leaks especially when your class contains unmanaged code , i.e., contains pointers or object handles to files, databases or other external objects. A destructor can be virtual.29 Eki 2016
Read moreHow virtual destructor works internally C++?
In simple terms, a virtual destructor ensures that when derived subclasses go out of scope or are deleted the order of destruction of each class in a hierarchy is carried out correctly . If the destruction order of the class objects is incorrect, in can lead to what is known as a memory leak.
Read moreC# Deconstruct nedir?
Deconstruct Metodu Nedir ? Ne İşlev Görür? Bir sınıf içerisinde “Deconstruct ” ismiyle tanımlanan metot, compiler tarafından özel olarak algılanmakta ve sınıfın nesnesi üzerinden geriye hızlıca Tuple tipte bir değer döndürmemizi sağlamaktadır.
Read moreCan we call default constructor from parameterized constructor?
You can’t call a default constructor once you’ve created a constructor that takes arguments . You’ll have to create the no argument constructor yourself in order to make a call from the parameterized constructor. Yes, this will work.
Read moreWhich constructor call first in C#?
In C# terms, the base constructor is executed first.
Read more