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by: lobrys |
last post by:
Hi
I am building a dotnet 1.1 app, in VB.net ...
I would like to have several config files corresponding to multiple
envirronment (Database, local Machine, Application, User...) and overloads
each, in order to have, by the way, one config.
So I would like to load a config file (app.config) at startup (as usual),
then overload this file with a new file (came from SQL for exemple), then
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by: Piotre Ugrumov |
last post by:
I'm following your help. I have written the overload of the operator <<.
This overload work! :-)
But I have some problem with the overload of the operator >>. I have written
the overload of this least operator for the class Person, but I don't know
how write the overload for a class that derived from the class Person.
The overload of << in Person is this:
ostream & operator<<(ostream &out, const Persona &p){
out<<p.getNome()<<"...
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by: Piotre Ugrumov |
last post by:
I have done the overload on the operator >> and << in the class Attore.
These 2 overload work correctly.
I have done the overload of the same overload in the class Film. The class
film ha inside an array of pointer to Attore.
I have written these overload in these ways. the overload of << work
correctly the overload of >> I don't know. I compile the class correctly,
when I insert a film through the operator >> I don't receive error, but...
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by: Nimmi Srivastav |
last post by:
There's a rather nondescript book called "Using Borland C++" by Lee
and Mark Atkinson (Que Corporation) which presents an excellent
discussion of overloaded new and delete operators. In fact there are
quite a few things that I learned that I did not know before. For
example, while I knew that the new and delete operators can be
overloaded for classes, I did not know that that the global new and
delete operators can also be overloaded. ...
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by: ectoplasm |
last post by:
Abstract base class A. Derived from A are class B and C, both concrete.
I hold a pointer to an object of class A, an instance which is either B
or C.
I have trouble with making the following work, while I think it should
be possible:
A *pA = new B; // One of...
A *pA = new C; // ...these two
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by: Chris |
last post by:
To me, this seems rather redundant. The compiler requires that if you
overload the == operator, you must also overload the != operator. All I do
for the != operator is something like this:
public static bool operator !=(MyType x, MyType y)
{
return !(x == y);
}
That way the == operator handles everything, and extra comparing logic isn't
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by: xtrigger303 |
last post by:
Hi to all,
I was reading Mr. Alexandrescu's mojo article and I've a hard time
understanding the following.
Let's suppose I have:
//code
struct A {};
struct B : A {};
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by: sebastian |
last post by:
I've simplified the situation quite a bit, but essentially I have
something like this:
struct foo
{ };
void
bar( foo const & lhs, foo const & rhs )
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by: jknupp |
last post by:
In the following program, if the call to bar does not specify the type
as <int>, gcc gives the error "no matching function for call to
‘bar(A&, <unresolved overloaded function type>)’". Since bar
explicitly takes a pointer-to-member with no parameters, why is the
lookup for the overloaded function not able to use the number of
arguments to determine the appropriate function? Is there a relevant
portion of the standard that governs the...
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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: 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...
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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: 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...
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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: 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
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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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