returning a value from a thread - Page 3

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11919

by: mjm | last post by:

Folks, Stroustrup indicates that returning by value can be faster than returning by reference but gives no details as to the size of the returned object up to which this holds. My question is up to which size m would you expect vector<double> returns_by_value() {

C / C++

2070

Returning structures

by: kelvSYC | last post by:

What is the best way to create functions that, based on some input, return either structures or a null value if the structure cannot be made? The problem is that the structure has be created inside the function, and I've heard that returning a pointer to a locally created structure is unsafe. -- I am only a mirage.

C / C++

1988

Returning by value, returning by reference

by: JKop | last post by:

When I compile and run the following on my system: #include <iostream> static int hello = 78; int ReturnValue(void) {

C / C++

4522

Getter returning strings by value -- good or bad?

by: Matthias Kaeppler | last post by:

Hi, I was wondering why library implementors often make getter functions return strings by value (copies). For example, in boost::filesystem the leaf() function returns an std::string by value. So does Gnome::Vfs::FileInfo::get_name(). Isn't that unnecessary overhead? I could as well return by reference to const-string and avoid

C / C++

5230

Returning object from AsyncCallback called inside a threaded Infinite loop

by: Jim P. | last post by:

I'm having trouble returning an object from an AsyncCallback called inside a threaded infinite loop. I'm working on a Peer2Peer app that uses an AsyncCallback to rerieve the data from the remote peer. I have no problem connecting the peers and streaming Network Streams. When the incoming data is finished recieving, I act upon it. This works great as long as all of the code is inside my form. I want to build the networking code into a...

C# / C Sharp

1307

returning a variable from a worker thread

by: Pesso | last post by:

I have a worker thread, which returns a value (a System.Xml.XmlDocument object) to the main WinForm thread. I tried the below, but I'm not sure if it's done correctly. public class Form1: System.Windows.Forms.Form { // ... System.Xml.XmlDocument _xmldoc; // ... void Func1()

C# / C Sharp

10378

webmethod returning interface or receiving an interface parameter

by: LS | last post by:

Can a WebMethod return an Interface type? Can we pass an interface parameter ? Example : public interface IEntity { long Id { get; set; } string Name { get; set; } }

.NET Framework

5215

Returning NULL vs. returning FALSE

by: Thomas Mlynarczyk | last post by:

Hi, It seems to be a generally adopted convention to have a function return FALSE in case of an error. But if a function is supposed to return a boolean anyway, one cannot distinguish anymore between the "normal" FALSE and the "error" FALSE. So why not using NULL instead to indicate an error? Are there drawbacks I am not aware of? Greetings, Thomas

PHP

9032

GetCurrentThread not returning correct handle

by: otengo | last post by:

Hi all, I tried using GetCurrentThread to get the Handle of the current thread but it keeps returning 0xfffffffe for all the threads that I access it in. This is not the correct handle. Am I missing any prerequisite calls or something else? Regards, ...ab

.NET Framework

9719

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

10371

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

10373

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

9192

AI Job Threat for Devs

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...

Career Advice

7650

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

5546

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

4330

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

3852

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

3010

Comprehensive Guide to Website Development in Toronto: Expert Insights from BSMN Consultancy

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...

General