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by: dpr |
last post by:
I have come accross a piece of C++ code with the construct:
MyClass *c = new class MyClass();
Is there a difference between this and:
MyClass *c = new MyClass();
?
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by: mshetty |
last post by:
Hi,
I get an error "Warning: b::a_method hides the virtual function
a::a_method()."
on compiling the following code..
#include <iostream.h>
class a
{
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by: XiongBin |
last post by:
anybody who tell me: what is the difference between "struct" and
"class"?
:-)
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by: Kenneth Baltrinic |
last post by:
Is the following code correct for serializing a quasi-single class, that is
a class that has a descreet (though more than one, so not a true singleton)
number of static instances and no dynamically creatable instances? Please
forgive my use of terms. Quasi-signleton is a term I made up and static
instances is a little bogus too but I don't know the correct terms for what
I mean if there are any. However, I think the code below should be...
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by: kevin |
last post by:
I have a form and in the form I have a sub that uses a class I instantiate
using
visual basic code: Public oCP As New Rs232 'instantiate the comm port
I need to share this sub with another form so to declare the sub I use
visual basic code: Public Shared Function IsPortAvailable(ByVal ComPort
As Integer) As Boolean
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by: timbobd |
last post by:
I have encountered a situation that I don't understand. When I call a sub of
Friend scope (in an object with Friend scope), I am getting an error "Public
member 'subname' not found in type 'myType'". Any idea why? Since Friend
scope should be visible within my assembly, and everying is taking place
within a single project, I don't understand why this error is occuring.
Here is some illustrative code, where I would get the error in the...
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by: Kobe |
last post by:
Is there any difference in:
template <class T>
vs.
template <typename T>
?
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by: AndyB |
last post by:
I'm using xsd.exe to generate a typed-dataset. Then using typed dataset
tables (datatables containing two columns--a name and a value) to bind to
ASP.NET dropdown list controls (for the dropdown list option values).
All was fine with the binding, until I moved the dataset to a different
assembly, as I found out that the DataColumn property is "Friend" (in
VB.NET).
Could you point me how to make the DataColumn "public", or another work...
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by: BobPaul |
last post by:
I'm following code out of a howto book and this is really bugging me. This header file was created by VStudio 6.0 when I did a "Right Click: Add Member Function" CLine is a class I wrote (per the book's instructions) and Line.h in included in Day10Doc.cpp
Here is the contents of Day10Doc.h
#if !defined(AFX_DAY10DOC_H__16736853_CB29_49E7_A8ED_C912CAE666EC__INCLUDED_)
#define AFX_DAY10DOC_H__16736853_CB29_49E7_A8ED_C912CAE666EC__INCLUDED_
...
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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: 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: 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: 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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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