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by: Noam Raphael |
last post by:
Hello,
I thought about a new Python feature. Please tell me what you think
about it.
Say you want to write a base class with some unimplemented methods, that
subclasses must implement (or maybe even just declare an interface, with
no methods implemented). Right now, you don't really have a way to do
it. You can leave the methods with a "pass", or raise a
NotImplementedError, but even in the best solution that I know of,
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by: David B. Held |
last post by:
I wanted to post this proposal on c.l.c++.m, but my news
server apparently does not support that group any more.
I propose a new class of exception safety known as the
"smart guarantee". Essentially, the smart guarantee
promises to clean up resources whose ownership is
passed into the function, for whatever defintion of "clean
up" is most appropriate for the resource passed.
Note that this is different from both the basic and the...
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by: cppaddict |
last post by:
Hi,
I know that it is illegal in C++ to have a static pure virtual method,
but it seems something like this would be useful when the following 2
conditions hold:
1. You know that every one of your Derived classes will need to
implement some method, but implement it differently, and that the base
class cannot implement it. This is where pure virtual comes in.
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by: dover |
last post by:
For the code, outputfile << *p << endl;
Someone suggests: Don't use endl here; it is flushing output stream every
time. Use plain '\n'.
What's the difference of using "endl" and "\n" above? What's the meaning of
flushing output stream? Isn't that what we want?
Thanks!
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by: Peter Oliphant |
last post by:
In the 'old days', we could create a pointer to an instance of a variable
like so:
int i = 58 ;
int* i_ptr = &i ;
int j = *i_ptr ; // j = 58
Now, in /clr how do we do the same? That is, if I replace '*' with '^' what
do I replace '&' with to generate a 'pointer' (is 'x^' called a 'reference'
per chance?) to the instance? That is:
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by: Greg |
last post by:
Is it your general opinion that C# is generally designed/intended/ready to
replace C++? I know the answer is not black and white but please repond YES
or NO (add any comments if you would like)
I just thought it might be interesting to get a tally. This is related to a
previous thread. So far we have two NOs from "aa" and Bo Persson.
--
Greg McPherran
www.McPherran.com
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by: pinkfloydhomer |
last post by:
How do I check if a string contains (can be converted to) an int? I
want to do one thing if I am parsing and integer, and another if not.
/David
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by: eman1000 |
last post by:
I was recently looking at the prototype library
(http://prototype.conio.net/) and I noticed the author used the
following syntax:
Object.extend(MyObj.prototype, {
my_meth1: function(){},
my_meth2: function(){}
});
to define new methods on the MyObj prototype object. Object.extend
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by: yabansu |
last post by:
Hi all,
I think most of you probably know the two .NET framework functions, namely Encoding.GetBytes(string) and Encoding.GetString(byte), to convert string into byte array and vice versa.
Now, I want to do the same thing in pure(unmanaged) C++.
I searched the Internet but could not find any satisfactory solutions. I am really in need of help! Is there anyone to explain how I can implement these functions by not using .NET library?
...
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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...
|
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: 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: 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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