| |
by: JKop |
last post by:
I'm starting to think that whenever you derive one class from another, that
you should use virtual inheritance *all* the time, unless you have an
explicit reason not to. I'm even thinking that there shouldn't have been a
"virtual" keyword for this purpose, but instead, a "nonvirtual" keyword!
In teaching inheritance, you see the common example:
class Vehicle {}
|
by: heted7 |
last post by:
Hi,
Most of the books on C++ say something like this: "A virtual destructor
should be defined if the class contains at least one virtual member
function."
My question is: why is it only for the case when the class contains at
least one virtual member function? Shouldn't the destructor always be
virtual, whenever there's a possibility that an inherited object will
be destructed through a base class pointer? (This does not require,
|
by: santosh |
last post by:
Hello,
I was going through the Marshal Cline's C++ FAQ-Lite.
I have a doubt regarding section 33.10.
Here he is declaring a pure virtual destructor in the base class.
And again defining it inline. Like this.
|
by: Floogle |
last post by:
how do i create a virtual == operator. I've tried the following but
it's incorrect...
class Interface
{
...
public:
virtual bool operator==(const Interface& rhs)const=0;
|
by: Adrian Herscu |
last post by:
Hi all,
In which circumstances it is appropriate to declare methods as non-virtual?
Thanx,
Adrian.
|
| |
by: plmanikandan |
last post by:
Hi,
I have doubts reg virtual constructor
what is virtual constructor?
Is c++ supports virtual constructor?
Can anybody explain me about virtual constructor?
Regards,
Mani
|
by: kikazaru |
last post by:
Is it possible to return covariant types for virtual methods inherited
from a base class using virtual inheritance?
I've constructed an example below, which has the following structure:
Shape = base class
Triangle, Square = classes derived from Shape
Prism = class derived from Shape
TriangularPrism, SquarePrism = classes derived from Triangle and
Prism, or Square and Prism respectively
|
by: ypjofficial |
last post by:
Hello All,
So far I have been reading that in case of a polymorphic class ( having
at least one virtual function in it), the virtual function call get
resolved at run time and during that the vtable pointer is made use
of..
eg.
class one
{
|
by: Heinz Ketchup |
last post by:
Hello,
I'm looking to bounce ideas off of anyone, since mainly the idea of using
Multiple Virtual Inheritance seems rather nutty. I chalk it up to my lack
of C++ Experience.
Here is my scenario...
I have 5 Derived Classes
I have 3 Base Classes
|
by: mijobee |
last post by:
I'm very new to c++ and just writing some code to learn. I've run into
a problem, with a javaish design, and want to know if there is any
possible solution without modifying the design. I've read up on
virtual inheritance and from my understanding this should work fine but
I haven't found any docs that use such a tangled example. The gcc
output containing the errrors:
Example.cpp: In member function 'virtual IObject*...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
| |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
| |
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
39
