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by: Stefan Strasser |
last post by:
why is delete an expression and not a statement? (in my draft copy of
the standard).
I was about to ask the same question about "throw" but found an
expression case of throw("return boolvalue ? 5 : throw 5;").
but "delete" neither does exit the scope nor has a return value.
any idea?
thanks,
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by: gary |
last post by:
Hi,
We all know the below codes are dangerous:
{
int *p = new int;
delete p;
delete p;
}
And we also know the compilers do not delete p if p==NULL.
So why compilers do not "p = NULL" automatically after programs do "delete p"?
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by: Michael Ramey |
last post by:
Hi,
I'm dynamically creating a table of "delete" imagebuttons, that correspond
to files on the webserver. I want to respond to clicks of these buttons, so
I know to know what file to delete. Here is the code I'm using
Dim imgShow As New ImageButton
imgShow.CommandName = "Delete"
imgShow.CommandArgument = arrayOfFiles(i)
AddHandler imgShow.Command, AddressOf Image_Command
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by: papaja |
last post by:
Hi,
I posted this on asp.net forums already, but nobody answered it. Here
is direct link: http://forums.asp.net/1124640/ShowPost.aspx.
Here is the question:
I'm using this code in delete command of datagrid:
****************
Dataset1.DSataTable1.Rows(e.Item.ItemIndex).Delete()
adp.Update(DataSet1)
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by: Bob Tinsman |
last post by:
This problem shows up in Firefox 1.5.0.1 and Rhino 1.6R2.
I've found that if I have an XML node expression that ends in a filter,
I can't use it with the delete operator. In the following example, the
delete operation has no effect:
var z = <abc><foo a='1'>1</foo><foo a='2'>2</foo></abc>;
alert(z.foo.(@a == '2'));
delete z.foo.(@a == '2');
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| |
by: mkaushik |
last post by:
Hi everyone,
Im just starting out with C++, and am curious to know how "delete
<pointer>", knows about the number of memory locations to free.
I read somewhere that delete frees up space assigned to <pointerby
"new". Does "new" create a list of pointer names and the size of the
memory array they point to? I also read that some compilers may store
the number of consec mem locations a pointer points to, just before the
first data...
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by: MorgyTheMole |
last post by:
I have a base class:
class A {
protected:
static void* operator new (size_t size);
void operator delete (void *p);
public:
void Delete();
}
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by: WaterWalk |
last post by:
Hello. The question about "deleting this inside the class's member
function" is discussed many times in this group and in the "C++
FAQs". But I still have two more questions.
1. Take the following class as an example:
class Test
{
public:
static void print_message(char *s) { printf("%s\n", s); }
void delete_me()
|
by: Daniel Pitts |
last post by:
I have std::vector<Base *bases;
I'd like to do something like:
std::for_each(bases.begin(), bases.end(), operator delete);
Is it possible without writing an adapter? Is there a better way? Is
there an existing adapter?
Thanks,
Daniel.
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by: Medvedev |
last post by:
i see serveral source codes , and i found they almost only use "new"
and "delete" keywords to make they object.
Why should i do that , and as i know the object is going to be destroy
by itself at the end of the app
for example:
class test
{
public:
int x;
|
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: 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...
|
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...
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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:
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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