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by: fabio de francesco |
last post by:
Hi
what do you think of the following? Why are we permitted to do that?
And why the C++ Library doesn't stop someone willing to perfom that
assignement (*a = 20)?
#include <iostream>
using std::cout;
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by: BigMan |
last post by:
Does the C++ standard define what should happen in case of NULL pointer
dereferencing. If not, does it say that it is illegal?
Where, if so, does it say it?
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by: Vam |
last post by:
dereferencing a pointer to base always provides a base-class slice even if
the object pointed to was of a derived type, correct?
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by: Dennis Jones |
last post by:
Hello,
Given something like:
boost::shared_ptr<T> t( new T() );
What is the best (correct?) way to dereference the pointer? The following
two methods work. Is there a difference?
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by: Pushkar Pradhan |
last post by:
I have some functions which take as i/p a buffer (it can be float, char,
or 16 bit, int etc.). The result is another o/p buffer, its type is also
flexible (it could be a float, char etc.).
I try to pass both as "void *buf" so that it can accept any data type.
But since I access the buffer and try to assign its elements to another
I get compile errors (I have pasted at the end).
Now my question is how can I pass the i/p and o/p buffers...
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by: Lutz Richter |
last post by:
Hi,
given the following code:
-----------------------------
class B
{
public:
B(): Value(99) {}
int Get() { if (this) return Value; else return -1; }
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by: Pritam |
last post by:
line 7: error: dereferencing pointer to incomplete type
1. #include<stdio.h>
2. #include<sys/stat.h>
3. #include<stdlib.h>
4. void execname() {
5. struct task_struct *my;
6. my = find_task_by_id(getpid());
7. printf("%s",my->comm); error: dereferencing pointer to incomplete
type
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by: David Mathog |
last post by:
I have a program for which this line:
if(! lstrtol(&atoken,length-2,(long *) &(lclparams->pad)) ||
(lclparams->pad< 0)){
generates the warning below, but ONLY if the gcc compiler is at -O2 or
-O3. I don't see any reason why optimization should change things much
in this piece of code - there's no way to optimize it out and I have
verified that this particular line does what it should no matter how the
program is compiled. Anyway,...
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by: prashant.khade1623 |
last post by:
I am not getting the exact idea.
Can you please explain me with an example.
Thanks
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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: 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: 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: 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: 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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