|
by: Ron Garret |
last post by:
Why doesn't this work?
>>> from weakref import ref
>>> class C(str): pass
....
>>> ref(C())
Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: cannot create weak reference to 'C' object
>>>
|
by: Frank Rizzo |
last post by:
We are having one of those religious debates at work: Interfaces vs
Classes. My take is that Classes give you more flexibility. You can
enforce a contract on the descendant classes by marking methods abstract
(which is all that an interface does). In addition, the classes allow
you to be flexible by adding functionality that child classes inherit.
Or by providing optional functionality via virtual methods.
Now, I understand that...
|
by: Elroyskimms |
last post by:
I know that multiple class inheritance is not possible in VB.Net I also
know that I can:
inherit class a
and in class a:
inherit class b
and in class b:
|
by: Philip Potter |
last post by:
I have a graph data structure. It goes something like this:
class GraphNode {
private:
friend class Graph;
// successor GraphNodes stored as indices of the Graph's array
int value;
int next1, next2;
};
|
by: T.A. |
last post by:
I understand why it is not safe to inherit from STL containers, but I have
found (in SGI STL documentation) that for example bidirectional_iterator
class can be used to create your own iterator classes by inheriting from
it, ie.
class my_bidirectional_iterator : public bidirectional_iterator<double>
{
...
};
|
|
by: Tom Cole |
last post by:
I'm working on a small Ajax request library to simplify some tasks
that I will be taking on shortly. For the most part everything works
fine, however I seem to have some issues when running two requests at
the same time. The first one stops execution as the second continues.
If I place either an alert between the two requests or run the second
through a setTimeout of only 1 millisecond, they both work. You can
see a working example here:...
|
by: Janaka Perera |
last post by:
Hi All,
We have done a object oriented design for a system which will create a
class multiply inherited by around 1000 small and medium sized
classes.
I would be greatful if you can help me with the following:
Can this create any problems with GNU g++ compilation, linking etc?
What would be the impact to the performance of the system?
Anything else we have to consider?
|
by: ademirzanetti |
last post by:
Hi there !!!
I would like to listen your opinions about inherit from a STL class
like list. For example, do you think it is a good approach if I
inherit from list to create something like "myList" as in the example
below ?
#include "Sector.h"
using namespace boost;
|
by: puzzlecracker |
last post by:
0) What is the convention name for derived classes?
1) If we implement methods in abstract class, do we still need to
declare them as abstract?
2) Are we allowed to override methods in derived classes that are
already implemented in abstract?
3) Are there a different accessibility levels when I inherit class,
like (public, protected, private), like class A:public B?
Thanks
|
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: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
|
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: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
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
|
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|