arrays in classes

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1984

2 questions: speed of memset() and pointer to multi-arrays

by: k-man | last post by:

Hi! I'll try to make it short: 1) is memset() optimised is some way (I suppose at various level depending of implementations) and if so, to what level? Is it faster to memset() 4kbytes of memory to 0 or go in a for(;;) loop for 10 (or 100) iteration to clean up individual integers? 2) This one confuses me even after all those years. I usually avoid it with classes but here I have no option.

C / C++

3095

Returning arrays and Objects in C++

by: Gent | last post by:

I have two questions which are very similar: Is it possible to return an object in C++. Below is part of my code for reference however I am more concerned about the concept. It seems like the function below is returning a pointer to pointers who are GUID. I am trying to write a wrapper to use in my VB code and what I would prefer to do is be able to return an array of GUID. I remember (not sure) that the concept of arrays does not really...

C / C++

3926

Copying objects and arrays

by: Matteo Settenvini | last post by:

Ok, I'm quite a newbie, so this question may appear silly. I'm using g++ 3.3.x. I had been taught that an array isn't a lot different from a pointer (in fact you can use the pointer arithmetics to "browse" it). So I expected that when I run this program, I get both c1.A and c2.A pointing to the same address, and changing c1.A means that also c2.A changes too. ----- BEGIN example CODE -----------

C / C++

3858

Arrays in structures

by: Peter Seaman | last post by:

I understand that structures are value types and arrays and classes are reference types. But what about arrays as members of structures i.e. as in C struct x { int n; int a; }

C# / C Sharp

3789

Passing arrays from Classic ASP to .NET components - How do you do this transparently?

by: Mark | last post by:

Hi From what I understand, you can pass arrays from classic ASP to .NET using interop, but you have to change the type of the.NET parameter to object. This seems to be because classic ASP passes a variant containing an array, and interop expects a parameter of type object if you are passing a variant (you are expected to cast it to the correct type in your code). I'd like to find a way of passing arrays so that you don't need to change...

ASP.NET

10155

Two-Dimensional Dynamic Arrays

by: Peter Olcott | last post by:

I need to know how to get the solution mentioned below to work. The solution is from gbayles Jan 29 2001, 12:50 pm, link is provided below: > http://groups.google.com/group/comp.lang.c++/msg/db577c43260a5310?hl > >Another way is to create a one dimensional array and handle the >indexing yourself (index = row * row_size + col). This is readily >implemented in template classes that can create dynamically allocated >multi-dimensional...

C / C++

1197

Deserialization of objects containing arrays of unknown size

by: PeterW | last post by:

I have a class which uses three other classes, two of which are used in arrays. This class is only ever used for incoming messages. All classes inherit from ISerializable and impliment GetObjectData(). All classes use the attribute and have a default constructor. When deserializing from an xml string that represents a complex object, I am getting NullReferenceExceptions that seem to be related to the arrays. The object is created...

.NET Framework

5887

Very large arrays and .NET classes

by: Peter Duniho | last post by:

This is kind of a question about C# and kind of one about the framework. Hopefully, there's an answer in there somewhere. :) I'm curious about the status of 32-bit vs 64-bit in C# and the framework classes. The specific example I'm running into is with respect to byte arrays and the BitConverter class. In C# you can create arrays larger than 2^32, using the overloaded methods that take 64-bit parameters. But as near as I can tell,...

C# / C Sharp

2702

Destroying an array of arrays

by: Olumide | last post by:

Hello - I have two classes A and B as follows: class B{ public: ~B(){ cout << "destroying B" << endl; } }; class A{

C / C++

2541

How to avoid using arrays for strings???

by: mike3 | last post by:

(I'm xposting this to both comp.lang.c++ and comp.os.ms- windows.programmer.win32 since there's Windows material in here as well as questions related to standard C++. Not sure how that'd go over at just comp.lang.c++. If one of these groups is too inappropriate, just take it off from where you send your replies.) Hi.

C / C++

8674

What is ONU?

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...

General

8603

Changing the language in Windows 10

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,...

Windows Server

9027

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

by: jinu1996 | last post by:

In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...

Online Marketing

8895

The easy way to turn off automatic updates for Windows 10/11

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,...

Windows Server

6518

Access Europe - Using VBA to create a class based on a table - Wed 1 May

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...

Microsoft Access / VBA

4369

Trying to create a lan-to-lan vpn between two differents networks

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...

Networking - Hardware / Configuration

4619

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

3046

transfer the data from one system to another through ip address

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

C# / C Sharp

2329

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP