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by: Suzanne Vogel |
last post by:
** Isn't the 'static_cast' operator the same as traditional type
casting? ie, Aren't the following ways of getting b1, b2 the same?
// 'Derived' is derived from 'Base'
Derived* d = new Derived();
Base* b1 = static_cast<Base*>(d);
Base* b2 = (Base*)d; // traditional type casting
Such is my understanding from code samples, my own uses, and this:
http://www.cplusplus.com/doc/tutorial/tut5-4.html
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by: Jacob Jensen |
last post by:
This question has probably been asked a million time, but here it comes
again. I want to learn the difference between the three type cast operators:
static_cast, reinterpret_cast, dynamic_cast. A good way to do this is by
example. So I will give an example and please tell me what you think:
I have a base
class A
with a virtual destructor, and a
class B
that is it inherits publicly from A and defines som extra stuff.
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by: Steve Teeples |
last post by:
Can someone explain how to cast an object to a specific type during runtime?
// This line of code tells me the objects type.
System.Type type = System.Type.GetType("string of the type");
// This line of code compares the objects, but the compiler doesn't like my
casting.
return ((type)object1 <= (type)object2) ? true : false;
The compiler doesn't like my casting of (type)object1 or (type)object2.
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by: Bob |
last post by:
This has been bugging me for a while now.
GetType isn't availble for variables decalred as interface types, I have to
DirectCast(somevariable, Object).
In example:
Sub SomeSub(ByVal Dictionary as IDictionary)
If Dictionary is Nothing Then Return
Dim o as Object = DirectCast(Dictionary, Object)
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by: René Nordby |
last post by:
Hi there,
Is there anyone that knows how to do the following?
I have a class A and a class B, that 100% inherits from class A (this means
that I don't have other code in class B, than the Inherit statement).
|
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by: lovecreatesbeauty |
last post by:
Why (type*)pointer isn't equal to *(type**)pointer,
In the code snippet, it shows that:
(int *) == (int **) ,
(int *) != (*(int **)) .
Does type-casting change the address? or doesn't type-casting do
anything?
1 int main(void)
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by: crook |
last post by:
I have code below and it works properly but when I'm compiling it with
"--pedantic" flag, GCC(3.4.2) shows such warning: "ISO C forbids
casting nonscalar to the same type". How can I change this code to get
rid of this warning?
/*parameters is void* type*/
struct params p = ( struct params )*( ( struct params * )parameters );
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by: shuisheng |
last post by:
Dear All,
Assume I have a class named Obj.
class Obj
{ };
And a class named Shape which is derived from Obj.
class Shape: public Obj
|
by: Frederic Rentsch |
last post by:
Hi all,
If I derive a class from another one because I need a few extra
features, is there a way to promote the base class to the derived one
without having to make copies of all attributes?
class Derived (Base):
def __init__ (self, base_object):
# ( copy all attributes )
...
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by: Smithers |
last post by:
Are there any important differences between the following two ways to
convert to a type?... where 'important differences' means something more
profound than a simple syntax preference of the developer.
x = someObject as MySpecificType;
x = (MySpecificType) someObject;
Thanks.
|
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: 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.
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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: 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: 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: 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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by: bsmnconsultancy |
last post by:
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