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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
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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
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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;
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by: John |
last post by:
Hi:
Below is a simple code:
class link1
{
public:
link1();
link1(int &b1, double &b2);
int* a1;
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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.
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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?
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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)"
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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++();
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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: 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: jinu1996 |
last post by:
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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,...
|
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...
|
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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
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by: bsmnconsultancy |
last post by:
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