Top "Destructor" questions

A special method in object-oriented programming which is invoked when an object is destroyed

Why does this virtual destructor trigger an unresolved external?

Consider the following: In X.h: class X { X(); virtual ~X(); }; X.cpp: #include "X.h" X::X() {} Try to …

c++ destructor unresolved-external virtual-functions
Python __enter__ / __exit__ vs __init__ (or __new__) / __del__

I have searched and I'm unable to come up with any good reason to use python's __enter__ /__exit__ rather than __…

python constructor destructor with-statement contextmanager
Is the destructor called if the constructor throws an exception?

Looking for an answer for C# and C++. (in C#, replace 'destructor' with 'finalizer')

c# c++ destructor finalizer
How to add constructors/destructors to an unnamed class?

Is there a way to declare a constructor or a destructor in an unnamed class? Consider the following void f() { …

c++ class constructor destructor declaration
C++ destructor with return

In C++ if we define a class destructor as: ~Foo(){ return; } upon calling this destructor will the object of Foo …

c++ c++11 return c++14 destructor
C++ LNK2019 error with constructors and destructors in derived classes

I have two classes, one inherited from the other. When I compile, I get the following errors: Entity.obj : error …

c++ inheritance constructor destructor lnk2019
"delete this" in constructor

What actually happen when I execute this code? class MyClass { MyClass() { //do something delete this; } }

c++ constructor destructor delete-operator self-destruction
Why, really, deleting an incomplete type is undefined behaviour?

Consider this classic example used to explain what not to do with forward declarations: //in Handle.h file class Body; …

c++ memory-management destructor forward-declaration delete-operator
Destructors of builtin types (int, char etc..)

In C++ the following code gives a compiler error: void destruct1 (int * item) { item->~int(); } This code is nearly …

c++ constructor destructor typedef
Using the Destructor/Dispose of the base class?

In C#, as mentioned in the Documentation, and this nice post's accepted answer, it's stated that classes don't inherit the …

c# dispose destructor idisposable finalizer