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by: The Directive |
last post by:
Is there a way in C++ to create a "true" interface. I want to create
an absract class that other classes can inherit from and be forced to
implement the interface's abstract (pure virtual) methods. However, it
has to be a true interface in that it doesn't add any overhead (when
the derived object is created) with the interface's constructors and
destructor because they don't exist for the interface. Does that make
sense? I just want an...
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by: Brian Blais |
last post by:
Hello,
I saw on a couple of recent posts people saying that casting the return
value of malloc is bad, like:
d=(double *) malloc(50*sizeof(double));
why is this bad? I had always thought (perhaps mistakenly) that the
purpose of a void pointer was to cast into a legitimate date type. Is
this wrong? Why, and what is considered to be correct form?
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by: yufufi |
last post by:
lets say we have a 'shape' class which doesn't implement IComparable
interface..
compiler doesn't give you error for the lines below..
shape b= new shape();
IComparable h;
h=(IComparable)b;
but it complains for the following lines
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by: AStrugglingDeveloper |
last post by:
I'm probably missing something horribly obvious but this is the first time
I've used the managed extensions for C++ and the documentation seems to
indicate that what I am doing should work.
I am developing a shim to allow users to develop managed add-ins for an
unmanaged product. I have developed a library in MC++ with a public interface
that all add-ins must implement.
At start up I read a config file to find all the registered...
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by: Bob |
last post by:
This has been bugging me for a while now.
GetType isn't availble for variables decalred as interface types, I have to
DirectCast(somevariable, Object).
In example:
Sub SomeSub(ByVal Dictionary as IDictionary)
If Dictionary is Nothing Then Return
Dim o as Object = DirectCast(Dictionary, Object)
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by: Kevin Frey |
last post by:
Consider this simple example:
interface IReader
{
bool Read( );
};
class MyReader : IReader
{
bool Read( ); // or should it be bool IReader.Read( ) ?
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by: Sean Chambers |
last post by:
Not sure if this is the correct way to go about this, but it seems
correct. I'm trying to eliminate dependencies through interfaces and
want to minimize casting as much as possible, as a result I have
interface inheritance setup like so
Here's my class setup:
BlogPost : IBlogPost
PodcastPost : BlogPost, IPodcastPost
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by: YellowFin Announcements |
last post by:
Introduction
Usability and relevance have been identified as the major factors
preventing mass adoption of
Business Intelligence applications. What we have today are traditional
BI tools that don't work
nearly as well as they should, even for analysts and power users. The
reason they haven't
reached the masses is because most of the tools are so difficult to use
and reveal so little
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by: Russell Mangel |
last post by:
Here is something much closer to what I was trying to do.
Thanks to Arne, and Peter and all who helped.
Sorry I didn't explain my question better.
Russell Mangel
Las Vegas, NV
// Begin Code
using System;
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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,...
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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...
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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,...
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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...
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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...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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