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by: porneL |
last post by:
How do I use static functions/properties with inheritance? I've found it
very problematic.
class Foo
{
static function A() {/* ??? */::B(); }
static function B() {echo 'Foo';}
};
class Bar extends Foo
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by: Ernst Murnleitner |
last post by:
Hello Readers,
Is there a way that only one class can construct a class A and its inherited
classes A2, A3 etc.?
I want to construct a class A (and the inherited classes A2, A3 etc.) from a
(factory) class Fa.
I wanted to make that only F can call
new A
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by: ashok |
last post by:
I have a confusion.
Do static member functions of base class get inherited to derived
class?
I searched for this answer but nowhere I get any referencec saying
"derived class inherits static functions with other member functions
of the base class".
regds,
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by: Samee Zahur |
last post by:
Question: How do friend functions and static member functions differ in
terms of functionality? I mean, neither necessarily needs an object of
the class to be created before they are called and either has access
only to static members of the class (ie. assuming no object of the
class is in scope - neither by arguments recieved nor by local
declarations). Any static member function like this:
//accessing static member i
static void...
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by: Thomas Fritzen |
last post by:
I have a problem with static functions and inheritance as demonstrated by the below samples
using System;
namespace ConsoleApplication1
{
class x
{
public static void Log()
{
Console.WriteLine("x.Log()");
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by: Alan Johnson |
last post by:
Consider the following class template, which has the static member
'seed_'. This template is intended to be inherited by several other
classes using the curiously recurring template pattern, so that each
class gets its own copy of 'seed_'. I am not sure where to initialize
the static member, though. Putting it in the header as indicated below
works in g++ 4.1, but I would like to know if this is just luck or if
the standard requires it...
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by: Digital Puer |
last post by:
Hi, I've inherited a bunch of C code that needs to be called from
a C++ framework, so I thought it would be good to put these C
functions into C++ classes for better organisation. What are
best practices?
Should I put related C functions into a class and make them
static methods? Most of the C functions are in separate files
with no global variables (one file of functions for producing
random numbers, one file of functions for doing...
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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?
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by: Juha Nieminen |
last post by:
As we know, the keyword "inline" is a bit misleading because its
meaning has changed in practice. In most modern compilers it has
completely lost its meaning of "a hint for the compiler to inline the
function if possible" (because if the compiler has the function
definition available at an instantiation point, it will estimate whether
to inline it or not, and do so if it estimates it would be beneficial,
completely regardless of whether...
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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: 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: 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: 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: 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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