| |
by: kaede |
last post by:
Hi all,
I have a quick question regarding binding temporary to const
reference. I wrote a little toy program to test it, but I don't seems
to understand the behaviour. Consider the following code snipplet:
// Data class, also overload operator<<
class Data { ... };
// Holds the data
|
by: Aravind |
last post by:
I would like to know in what manner dangling pointers affect the
security of a application developed using C++.What are the loopholes
that are created by dangling pointers and how they could be exploited
by hackers?.
Aravind
|
by: Hans Van den Eynden |
last post by:
I thought that integers resized on the stack and that a value type was
just defined in the scope of the function. And when the function
returns the local variables were removed from the stack. But what is
the explication of this code??
int& dangling_reference();
int main(int argc, char *argv)
{
int a;
|
by: John |
last post by:
Hi:
Below is a simple code:
class link1
{
public:
link1();
link1(int &b1, double &b2);
int* a1;
|
by: Tony Johansson |
last post by:
Hello Experts!
I'm reading in a book about C++ and the book says common errors is
"A function should not return a constant references to its parameter passed
by constant references"
Why?
Here I have written a method that has exactly this which is the parameter is
passed by constant references and I return constant references what is it
that can cause common error by writng in this way.
|
| |
by: Matthias Kaeppler |
last post by:
Hi,
I have a question regarding references, and their chance to "dangle" (if
that's possible at all):
Say I have a collection ob objects, and I take a reference to one of
them. Now I sort this collection, or invoke whatever action it takes to
copy around the elements in the collection.
What happens to the reference?
|
by: __PPS__ |
last post by:
Hello everybody
in a quiz I had a question about dangling pointer:
"What a dangling pointer is and the danger of using it"
My answer was:
"dangling pointer is a pointer that points to some area of ram that's
not reserved by the program. Accessing memory through such pointer is
likely to result in core dump (memory access violation)"
|
by: Belebele |
last post by:
Suppose that I have a method that returns references to "elements" in
an iterator, and a method to advance the iterator:
class Element { /* ... */ };
class Iterator {
public:
Element& operator*() const;
Iterator& operator++();
|
by: sridhard2406 |
last post by:
Hi All,
I have a doubt on undrestanding Dangling pointers.Below I mentioned sample code. please let me know, my view on Dangling pointers is correct or not?
main( )
{
char *a,*b,*c;
a = (char *)malloc(40);
b = a;
c = b;
free(a);
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
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,...
|
| |
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...
|
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...
|
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...
|
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();...
|
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...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
| |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
