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by: infobahn |
last post by:
printf("%p\n", (void *)0); /* UB, or not? Please explain your answer. */
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by: Pierre Quentel |
last post by:
Hi all,
In some program I was testing if a variable was a boolean, with this
test : if v in
My script didn't work in some cases and I eventually found that for v =
0 the test returned True
So I changed my test for the obvious "if type(v) is bool", but I still
find it confusing that "0 in " returns True
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by: M.B |
last post by:
Guys,
Need some of your opinion on an oft beaten track
We have an option of using "goto" in C language, but most testbooks
(even K&R) advice against use of it.
My personal experience was that goto sometimes makes program some more
cleaner and easy to understand and also quite useful (in error handling
cases).
So why goto is outlawed from civilized c programmers community.
is there any technical inefficiency in that.
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by: relient |
last post by:
Question: Why can't you access a private inherited field from a base
class in a derived class? I have a *theory* of how this works, of
which, I'm not completely sure of but makes logical sense to me. So,
I'm here for an answer (more of a confirmation), hopefully.
First let me say that I know people keep saying; it doesn't work
because the member "is a private". I believe there's more to it than
just simply that...
Theory: You inherit,...
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by: jacob navia |
last post by:
In this group there is a bunch of people that call themselves 'regulars'
that insist in something called "portability".
Portability for them means the least common denominator.
Write your code so that it will compile in all old and broken
compilers, preferably in such a fashion that it can be moved with no
effort from the embedded system in the coffe machine to the 64 bit
processor in your desktop.
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by: Chen Shusheng |
last post by:
CSS white here:
Simply strange, I found "define" can not work with "malloc". Together my
complier will say "parse error".
Could anyone tell me why?
-------------------------
#define MAX 10000
.......
int main(void){
.....
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by: msdos6 |
last post by:
I recently got a hold of the sources of Concurrent CP/M-86(circa 1984),
and the system builder, GENCPM is written in a K&R style C. Does GCC
support this syntax? If not, are there any K&R to ANSI converters out
there, or possibly a modern compiler supporting this syntax? Any help
is appreciated.
Thanks,
"msdos6"
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by: nospam_news |
last post by:
I currently get asked about my usage of "auto". What is it for?
The keyword is clearly superflous here.
In contrast to the huge majority of C/C++ developers I write
definitions very explicitly like that:
int main(char argc, char *argv, char *env) {
try {
auto Exception mainException(1);
mainException.setErrNo(42);
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by: Stephan Beal |
last post by:
Hi, all!
Before i ask my question, i want to clarify that my question is not
about the code i will show, but about what the C Standard says should
happen.
A week or so ago it occurred to me that one can implement a very basic
form of subclassing in C (the gurus certainly already know this, but
it was news to me). What i've done (shown below) seems to work all
fine and well, and does exactly what i'd expect, but i'm asking about
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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.
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Your website is...
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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: 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: 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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