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by: garyolsen |
last post by:
For a class, MyClass, there are two ways to instantiate an object:
1. MyClass *MC = new MyClass();
2. MyClass MC;
In general, when should you have to use 1 and when 2? What're
advantages/disadvantages of using either?
Thanks!
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by: Andy Leszczynski |
last post by:
watch this:
http://www.turbogears.org.nyud.net:8090/docs/wiki20/20MinuteWiki.mov
or read this:
http://www.turbogears.org.nyud.net:8090/docs/wiki2 0/page4.html
should not it be:
2 def save(self, pagename, data, submit, new):
3 hub.begin()
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by: vladislav.moltchanov |
last post by:
I am developing an Access tool for generating an Application MDB for
data entry in a "large scale" project. At design stage I would like to
keep open these two MDB. One current is generating forms and tables and
copying them to the second using TransferDatabase Method.
However when I put focus on this second the new forms and tables are not
yet there, or they are not processible.
I know that if this second is closed and opend everything...
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by: scartin |
last post by:
I'm fairly new to working with ASP web controls, and am running into
what seems to be a ridiculous problem that I'm hoping will be a breeze
for an experienced ASP developer.
I have a GridView and a FormView on the same page, where the GridView
is visible at page load, and the FormView is set to Edit mode by
default, but is hidden on the page. I have the Select link enabled on
my GridView, and I use the SelectedIndexChanged event to hide...
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by: Tony Sinclair |
last post by:
I'm just learning C#. I'm writing a program (using Visual C# 2005 on
WinXP) to combine several files into one (HKSplit is a popular
freeware program that does this, but it requires all input and output
to be within one directory, and I want to be able to combine files
from different directories into another directory of my choice).
My program seems to work fine, but I'm wondering about this loop:
for (int i = 0; i < numFiles; i++)
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by: jht5945 |
last post by:
For example I wrote a function:
function Func()
{
// do something
}
we can call it like:
var obj = new Func(); // call it as a constructor
or
var result = Func(); // call it as a function
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by: Pat |
last post by:
Hi,
I've run into a strange problem, but one that seems like it might be
fairly common.
I have a single base class, from which several other classes are derived.
To keep the example simple, the base class is "Animal" and the derived
classes are "Cat," "Dog," and "Horse."
The base class has a pure virtual method:
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by: Lloyd Bonafide |
last post by:
I followed a link to James Kanze's web site in another thread and was
surprised to read this comment by a link to a GC:
"I can't imagine writing C++ without it"
How many of you c.l.c++'ers use one, and in what percentage of your
projects is one used? I have never used one in personal or professional
C++ programming. Am I a holdover to days gone by?
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by: Medvedev |
last post by:
i see serveral source codes , and i found they almost only use "new"
and "delete" keywords to make they object.
Why should i do that , and as i know the object is going to be destroy
by itself at the end of the app
for example:
class test
{
public:
int x;
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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: 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.
The Art of Business Website Design
Your website is...
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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: 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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