by: Alex Vinokur |
last post by:
Hello,
Here is some program with virtual constructors.
Is there any difference between
* clone1() vs. clone2()
* create1() vs. create2() ?
It seems that it should be.
|
by: Sankar Nemani |
last post by:
Hi,
Does anyone know what the reason behind not allowing to
use "covariant return types when overriding methods in
derived classes" in C# is?
Also while other OO languages such as Java, don't...
|
by: Stefan Slapeta |
last post by:
Hi,
this code does not compile in C#:
class base_class {}
class derived_class : base_class {}
class A
{
public virtual base_class f()
|
by: Stephen Walch |
last post by:
Error C2392 is hitting me hard!
I have a managed C++ library that implements a bunch of fixed interfaces.
For example, one interface is:
public abstract interface IDbCommand
{
public...
|
by: Mike |
last post by:
I keep running into the scenario below over and over again. Currently I get
around not having covariant return types by using an interface and explicit
property definitions which works to some...
|
by: Bob Hairgrove |
last post by:
Consider the classic clone() function:
class A {
public:
virtual ~A() {}
virtual A* clone() const = 0;
};
class B : public A {
public:
|
by: miked |
last post by:
Why are there still no covariant return types?
All searches reveal no workarounds accept for using an interface which is a
real pain. I wind up missing this capability almost every time I...
|
by: Alex Vinokur |
last post by:
Here is a code from
http://www.parashift.com/c++-faq-lite/virtual-functions.html#faq-20.8
--------------------------------------
class Shape {
public:
virtual ~Shape() { } // A...
|
by: kikazaru |
last post by:
Is it possible to return covariant types for virtual methods inherited
from a base class using virtual inheritance?
I've constructed an example below, which has the following structure:
Shape...
|
by: Rahul |
last post by:
Hi Everyone,
I was trying to implement covariant return types and i get a
compilation error,
class BB : public AA
{
};
class A
|
by: taylorcarr |
last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
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by: Charles Arthur |
last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
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by: ryjfgjl |
last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
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by: ryjfgjl |
last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
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by: Sonnysonu |
last post by:
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
|
by: Hystou |
last post by:
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
|
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,...
|
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,...
|
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...
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