I have two structs:
template <typename T>
struct Odp
{
T m_t;
T operator=(const T rhs)
{
return m_t = rhs;
}
};
struct Ftw : public Odp<int>
{
bool operator==(const Ftw& rhs)
{
return m_t == rhs.m_t;
}
};
I would like the following to compile:
int main()
{
Odp<int> odp;
odp = 2;
...
I would like the following to compile, but it does not:
template <typename T>
struct Odp
{
public:
operator*() const
{
return m_p;
}
T* operator->() const
{
return m_p;
}
T** operator&()
{
return &m_p;
}
private:
T* m_p;
};
struct Ftw : public Odp<int>
{
bool o...
Hi!
I try to load an entity with some details and there is a resellerId in the entity.
Now I inherit a subclass from it, and try to access the resellerId but it's not there. How to pass the attributes to the subclasses? I really need it loaded.
Thanks!
edit:
class Crm_Entity extends Crm_Abstract {
protected $_mapper = 'Crm_Mapp...
Is it possible to do something like the following:
public class ChildClass : BaseClass
{
public ChildClass(BaseClass o)
{
base = o;
}
}
Basically, I want a transparent way to wrap a base class inside of other functionality. One example I've thought of is a custom Settings Provider which transparently audits the set...
I'm looking for bad examples of using inheritance. I'm not very creative so this was the best I could think of:
class Car : public Engine {}
A car has an engine, but it is not an engine.
This would probably work to explain the concept, but I believe there are more illustrative examples?
...
Hi,
I am involved in a web application project at the moment and we are not going to be using a framework.
I am looking for the 'best' javascript inheritance implementation. I have worked with prototypal style classes as follows:
function animal(options) {
self = this;
//properties
this.name = options.name;
//eve...
I have created an interface which I am inheriting from another (COM) interface:
public interface IDTSComponentMetaData : IDTSComponentMetaData90 { }
That's all it does.
The reason behind this is, depending on which version of SQL Server I am working with, the base may be IDTSComponentMetaData90 (2005) or IDTSComponentMetaData100 (20...
I have a base class foo that will be used in multiple child classes of similar but slightly different function:
Public MustInherit Class foo
Public Function bar1() as Something
''// Perfectly OK to change what this method does
End Function
Public Function bar2() as Something
''// Does a very specific thing I...
Say I have the following traits:
trait A
trait B { this: A => }
trait C extends B // { this: A => }
Compiler error: illegal inheritance; self-type C does not conform to B's selftype B with A
As expected if I uncomment the self type annotation, the compiler is happy.
I think it's quite obvious why C also needs this self type. What ...
If I have a multi-module project, how can I inherit a menu from my parent POM? The project layout is:
main <-- main project which just contains modules
parent <-- parent POM
ext <-- 3rd party code
I tried this in my parent's site.xml:
<menu name="Projects">
<item name="Main Project" href="${web-root}/" collapse="false...
I have a VERY complex service host which consists of multiple DUPLEX services here. They provide a bit of common functionality (Connect, Disconnect, KeepAlive, etc...) but besides that they provide very specific functionality each.
All my services inherit from a common base class (abstract).
So, I'm also responsible for a part of the c...
In Java, you can do instanceof. Is there a Ruby equivalent?
...
I'm working with .NET Compact Framework and just started to refactor some UI code. I'm defining a base user control to encapsulate common functionality, the project compiles OK but when I try to open a child user control in design mode I'm getting an error.
I made my class hierarchy taking into account this question. My classes are like...
I'm making a memory patcher for a game but when compiling it with only a single patch implemented, no vtable was created (Using mingw). Could someone tell me what is the problem and how I can fix it?
a_patch.cpp (Compile this)
#include "a_patch.h"
void a_patch::init_patch()
{
/* example initilisation */
init_var();
vector...
Hi experts!
I'm working on a project where I have an abstract class of Appointment. There are Workouts, Meals and Measurements that all derived from Appointment. My architecture looks like this so far:
Dao - with data access layer being entity framework 4 right now
POCO classes using the T4 templates
WCF
Silverlight Client, ASP.net MVP...
I'm using Boost.Property_Tree for a project and I want to add a small bit of functionality to it. I want to add a "fromFile" static member variable that will figure out the file type and then use the proper parser. In my project, this is currently how I've got it.
typedef boost::property_tree::ptree ConfigNode;
Then I have another cla...
<disclaimer>
What follows is the fruits of a thought experiment. What I'm doing
isn't the issue; the symptoms are. Thank you.
</disclaimer>
I've finally wrapped my head around constructors, prototypes, and prototypal inheritance in JavaScript. But the SomethingSpectactular method in the sample below bugs me:
function FinalClass() { ...
Multiple inheritance is not supported in dotnet. But multiple interface supports. Why this kind of behaviour exists.
Any specific reasons??
...
Hi.
I have same settings for all of my forms
for example color , font , align, etc
How can i do these settings for one form and inheriting it on all forms.
thanks.
Edition 1 :
i am using Windows Forms.
...
Hello I would like to use in my css simple inheritance from the browsers default values:
.myfromh1{
font-weight: bold;
}
Can I tell css that .myfromh1 class is owning all properties of the h1 default class?
thanks Arman.
...