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by: Jim West |
last post by:
Could someone please explain to me why the code segment
class FOO {
public:
double *begin();
};
void bar(const FOO &foo) {
foo.begin();
}
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by: Lecture Snoddddgrass |
last post by:
Back in the old Visual C++ days, it was always important to define constant
strings only once so that they wouldn't be stored over and over again in
memory. Has .NET resolved this issue? Consider these two code snippets:
Example A
========
const String hey="hey";
MessageBox.Show(hey);
MessageBox.Show(hey);
MessageBox.Show(hey);
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by: Markus.Elfring |
last post by:
How much effort do you invest to develop a const-correct design?
Did a later addition of the type modifier "const" for a function
interface uncover any real errors and bugs in your source code at
compile time?
Regards,
Markus
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by: July |
last post by:
Hello!
consider the following code:
class A {
public:
virtual void f() const{
cout << "A::f()" << endl;
}
};
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by: Rouben Rostamian |
last post by:
The main() function in the following code defines an m by n
matrix, assigns value(s) to its elements, then passes the matrix
to function foo().
For whatever it's worth, I have declared foo() so as to make
it treat its first argument as a "read-only" object, that is,
foo() can read but not alter the matrix.
I have a problem, however, with /calling/ foo. If I call
foo as foo(a,m,n), my compiler (gcc) complains about:
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by: coala |
last post by:
In Smart Pointer class, we have a piece of code:
inline void release(void) const { if (mPtr) mPtr->release(); mPtr = 0;
}
It can set mPtr but it is still const?
Why could this work and why it can be compiled? We have used it for
years.
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by: Jess |
last post by:
Hello,
If I have a constant array, i.e. it's elements aren't changed, should
I declare it as:
const int a = {1,2,3};
or
int const a = {1,2,3}
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by: Luna Moon |
last post by:
Hi all,
I just couldn't get myself clear about the usage of "const" in front
of and/or behind variables, pointers, classes, objects and
functions...
It's too confusing... any good clear article/tutorial that can help
me?
Thanks a lot!
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by: .rhavin grobert |
last post by:
hello;-)
i frequently need the following construction:
ReturnParam § Function() §
{
/...do something.../
someType var § = something;
/...do something.../
return something;
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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: 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: 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();...
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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...
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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: 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: 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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