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by: Dave |
last post by:
Hello all,
In the code below, I see the following output:
base::operator new(size_t, int)
base::base()
base::~base()
base::operator delete(void *)
In the case of an exception being thrown during construction, a form of
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by: Nimmi Srivastav |
last post by:
There's a rather nondescript book called "Using Borland C++" by Lee
and Mark Atkinson (Que Corporation) which presents an excellent
discussion of overloaded new and delete operators. In fact there are
quite a few things that I learned that I did not know before. For
example, while I knew that the new and delete operators can be
overloaded for classes, I did not know that that the global new and
delete operators can also be overloaded. ...
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by: Nimmi Srivastav |
last post by:
There's a rather nondescript book called "Using Borland C++" by Lee
and Mark Atkinson (Que Corporation) which presents an excellent
discussion of overloaded new and delete operators.
I am presenting below a summary of what I have gathered. I would
appreciate if someone could point out to something that is specific to
Borland C++ and is not supported by the ANSI standard. I am also
concerned that some of the information may be outdated...
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by: Douglas Peterson |
last post by:
class Allocator
{
public:
virtual void * Alloc(size_t) = 0;
virtual void * Free(void*) = 0;
};
class Object
{
public:
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by: Dave |
last post by:
Hello all,
I'd like to find a source on the web that discusses, in a comprehensive
manner and in one place, everything about new / delete. It should include
overloading operator new, the new operator, placement, nothrow, arrays,
etc...
My books cover the topic, I've found FAQs on the web that cover the topic,
and so on, but all the sources I've found are disjointed. There's a bit on
this page, a bit on that page, and so on. The...
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by: silver360 |
last post by:
Hello,
I'm trying to create a basic Heap manager and i have some question
about new/delete overloading.
The following code give me this output :
>> $./heap
>> registered : 0x804d098
>> 0x804d008 _Delete unknown block
>> registered : 0x804d138
>> 0x804d008 _Delete unknown block
>> 0x804d098 _Delete ok
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by: junw2000 |
last post by:
I use the code below to study delete and destructor.
#include <iostream>
using namespace std;
struct A {
virtual ~A() { cout << "~A()" << endl; }; //LINE1
void operator delete(void* p) {
cout << "A::operator delete" << endl;
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by: rohits123 |
last post by:
I have an overload delete operator as below
//////////////////////////////////
void operator delete(void* mem,int head_type) {
mmHead local_Head = CPRMemory::GetMemoryHead(head_type);
mmFree(&local_Head,(char *)mem);
CPRMemory::SetMemoryHeadAs(local_Head,head_type);
}
/////////////////////
void* operator new(size_t sz, int head_Type) {
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by: jeffjohnson_alpha |
last post by:
We all know that a new-expression,
foo* a = new foo() ;
allocates memory for a single foo then calls foo::foo(). And we know
that
void* p = ::operator new(sizeof(foo)) ;
allocates a sizeof(foo)-sized buffer but does NOT call foo::foo().
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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: 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: 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: 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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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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