How does the compiler implement a virtual destructor?

by: Martin Koller | last post by:

Hi list, I have a small example which gives me "pure virtual function called". I'm calling a virtual function in the destructor of the base class, where the pointer used is effectively...

C / C++

virtual destructor

by: Ele | last post by:

Is it correct to say that Whenever a class has a virtual member function, define its destructor as "virtual"? Can a destructor as "pure virtual"? When is it needed to do so? For an interface,...

C / C++

If declared as virtual in base, its derived version also is virtual. Why not for destructors?

by: qazmlp | last post by:

When a member function is declared as virtual in the base class, the derived class versions of it are always treated as virtual. I am just wondering, why the same concept was not used for the...

C / C++

Format of compiler generated derived destructor when base has 'virtual ~base() throw():"

by: qazmlp | last post by:

I have a class like this: class base { public: virtual ~base() throw(); // Other members }; Now, if I write a class like this:

C / C++

Necessity of pure virtual destructor?

by: WittyGuy | last post by:

Hi, I wonder the necessity of constructor and destructor in a Abstract Class? Is it really needed? ? Wg http://www.gotw.ca/resources/clcm.htm for info about ]

C / C++

difference between compiler generated destructor and class implemented

by: arun | last post by:

Hello Group, I have a class A, which has three other members and each member is of a different class type. If I don't create a destructor then the compiler will give me one and whenever...

C / C++

confused by virtual destructor example in "effective c++"

by: eric | last post by:

hello i'm confused by an example in the book "Effective C++ Third Edition" and would be grateful for some help. here's the code: class Person { public: Person(); virtual ~Person(); // see...

C / C++

How Does compiler implement virtual destructor ???

by: Pallav singh | last post by:

Hi All How Does compiler implement virtual destructor ??? as we all know if base class destructor is virtual..........then while wriiting statemnt like this Base * b = new Derived( );...

C / C++

Pure virtual destructor in template class

by: Tonni Tielens | last post by:

I'm trying to create a pure virtual class describing an interface. Normally, when I do this I make the destructor pure virtual so that, even if there are no members in the class, it cannot be...

C / C++

How to Become a Cyber Security Engineer

by: Rina0 | last post by:

Cybersecurity engineering is a specialized field that focuses on the design, development, and implementation of systems, processes, and technologies that protect against cyber threats and...

Security

Access Europe meeting on Wed 2 August - An Access Developer Guide to creating applications in Blazor

by: isladogs | last post by:

The next Access Europe meeting will be on Wednesday 2 August 2023 starting at 18:00 UK time (6PM UTC+1) and finishing at about 19:15 (7.15PM) The start time is equivalent to 19:00 (7PM) in Central...

Microsoft Access / VBA

Speedup your spring application

by: linyimin | last post by:

Spring Startup Analyzer generates an interactive Spring application startup report that lets you understand what contributes to the application startup time and helps to optimize it. Support for...

General

Development of Funny H5 Game - Toy Claw

by: kcodez | last post by:

As a H5 game development enthusiast, I recently wrote a very interesting little game - Toy Claw ((http://claw.kjeek.com/))。Here I will summarize and share the development experience here, and hope it...

HTML / CSS

Cancel Print Action if Sub form has No Records

by: DJRhino1175 | last post by:

When I run this code I get an error, its Run-time error# 424 Object required...This is my first attempt at doing something like this. I test the entire code and it worked until I added this - If...

Microsoft Access / VBA

To verify entry of a dropdown

by: DJRhino | last post by:

Private Sub CboDrawingID_BeforeUpdate(Cancel As Integer) If = 310029923 Or 310030138 Or 310030152 Or 310030346 Or 310030348 Or _ 310030356 Or 310030359 Or 310030362 Or...

Microsoft Access / VBA

React to native button blinking effect

by: lllomh | last post by:

Define the method first this.state = { buttonBackgroundColor: 'green', isBlinking: false, // A new status is added to identify whether the button is blinking or not } autoStart=()=>{

Software Development

How does React native implement an English player?

by: lllomh | last post by:

How does React native implement an English player?

Mobile Development

How to calculate date of retirement from date of birth

by: Mushico | last post by:

How to calculate date of retirement from date of birth

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How does the compiler implement a virtual destructor?

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