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by: Ken |
last post by:
Hi all. When referring to a null pointer constant in C++, is there
any reason to prefer using 0 over a macro called NULL that is defined
to be 0?
Thanks!
Ken
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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: Denis Palmeiro |
last post by:
Hello eveyone.
What exactly is a NULL Pointer Dereference? I tried searching google but
the only results that returned were bug reports. Some example code, if
possible, would also be appreciated.
Thanks in advance.
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by: sathyashrayan |
last post by:
The standard confirms that the following initialization of a struct
struct node
{
---
---
}
struct node var = {NULL};
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by: junky_fellow |
last post by:
Consider an implementation that doesn't use all bits 0 to represent
a NULL pointer. Let the NULL pointer is represented by 0x12345678.
On such an implementation, if the value of NULL pointer is printed
will it be all 0's or 0x12345678
int main(void)
{
char *ptr;
ptr = 0;
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by: fieldfallow |
last post by:
Hello all,
Before stating my question, I should mention that I'm fairly new to C.
Now, I attempted a small demo that prints out the values of C's numeric
types, both uninitialised and after assigning them their maximum defined
values. However, the output of printf() for the long double 'ld' and the
pointer of type void 'v_p', after initialisation don't seem to be right.
The compiler used was gcc (mingw) with '-Wall', '-std=c99' and
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by: Angel Tsankov |
last post by:
Does the standard define what happens when a NULL pointer is dereferenced? If so, where?
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by: khan |
last post by:
Hi,
I read that pointer representation can non-zero bit pattern, machine
specific.Compiler when comes accross value '0' in pointer context,
converts it to machine specific null pointer bit-pattern.
My question is if a program refers to that specific value which is
used by the machine to refer to null pointer, how compiler treats
that?.
|
by: prashant.khade1623 |
last post by:
I am not getting the exact idea.
Can you please explain me with an example.
Thanks
|
by: Rahul |
last post by:
Please read the following code
class Test{
public:
void * operator new (size_t t)
{ return malloc(t); }
void operator delete (void *p)
{ free(p); }
};
|
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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Your website is...
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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: 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: 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
|
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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