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by: DaKoadMunky |
last post by:
Please consider the following...
<CODE>
#include <string>
using namespace std;
typedef int PrimitiveType;
typedef string ClassType;
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by: Bruce W.1 |
last post by:
The intent of my web service is an RSS feed from a blog. Originally I
used a StringBuilder to make the XML and returned a string from the
webmethod. But this doesn't display properly in IE. So now I'm trying
an XmlTextWriter instead.
I whipped-up another webservice based on this:
http://www.codeproject.com/aspnet/RSSviaXmlTextWriter.asp?print=true
This example isn't set up strictly as a webservice. It seems to output
to an aspx...
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by: LaEisem |
last post by:
On-the-job, I have "inherited" a lot of old C language software.
A question or two about when "casting" of null pointer constants
is needed has occurred during behind-the-scenes cleanup
of some of that software. That subject seems not to be addressed,
at least not directly, in the C FAQ where FAQ 5.2 seems most relevant.
References:
* C FAQ 5.2 Null pointers
(Including conditions where "casting" of
null pointer...
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by: Michael C |
last post by:
eg
void DoIt()
{
int i = FromString("1");
double d = FromString("1.1");
}
int FromString(string SomeValue)
{
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by: C++ |
last post by:
According to Thinking in C++
"You cannot modify the return type of a virtual function during
overriding.but there is a special case in which you can slightly
modify the return type. If you¡¯re returning a pointer or a reference to a
base class, then the overridden version of the function may
return a pointer or reference to a class derived from what the base
returns." And here's the example:
class PetFood
{
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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 = base class
Triangle, Square = classes derived from Shape
Prism = class derived from Shape
TriangularPrism, SquarePrism = classes derived from Triangle and
Prism, or Square and Prism respectively
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by: Alexander Widera |
last post by:
hi,
is it possible to return an object of an unknown (but not really unknown)
type with an method?
i have the following situation:
- a variable (A) of the type "object" which contains the object
- a variable (B) of the type "Type" which contains the type of the object in
(A) (A should be of the type B)
- a method which should return the object (A) as type (B)
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by: hufaunder |
last post by:
I have a class "TestSuper" that implements the interface "TestBase".
The interface has a property of type "ReturnType". The class
"TestSuper" does not return "ReturnType" but a derivation
"ReturnSuper". This gives the following compile error due to a bad
return type:
TestSuper does not implement interface member TestBase.Func.
TestSuper.Func is either static, not public, or has the wrong return
type.
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by: =?Utf-8?B?QmVu?= |
last post by:
Hi all,
I'm trying to understand the concept of returning functions from the
enclosing functions. This idea is new to me and I don't understand when and
why I would need to use it.
Can someone please shed some light on this subject?
Thanks a lot,
Ben
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by: fabian.lim |
last post by:
Hi All,
Im a newbie to C++, I am trying to customize the vector template
STL to a template Class. My code is shown below. Im confused about
something and maybe somebody here might be able to help me.
Lets say X is my vector, which contains 10 elements. I want to
assign elements indexed 2 to 5 to another vector Y, so I want to do it
like Y = X(2,5). So what I do is i overload the () operators, as
marked in (a) below. This creates a new...
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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: 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: 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: 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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