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Don’t Design for Performance Until It’s Too Late: People claim optimisation can cause unreadable code. Andy Balaam argues good performance should be at the core of code design. by Andy Balaam

Template Programming Compile Time String Functions: Practising old exercises in new ways can keep you sharp. Nick Weatherhead demonstrates some well-known code katas using C++ compile time tricks. by Nick Weatherhead

A generic context menu class for Qt

by Jens Weller

I didn't plan to write a second post on menus. But a reply on twitter caused me to over think my code I presented yesterday. Its not an very important part, so that I moved on once it did run. So, the simple question, why I would not connect the menus to a slot instead of using a switch was a good one. It would restructure the code, and slots are also callable from the outside world, while the switch buries the code inside a method...

Menus and Widgets in Qt

by Jens Weller

Lets start with how Qt sees and handles menus. You can easily create a window menu in the RAD Editor of QtCreator, and then add a slot for its triggered() signal. But for a context menu...

Building factories in C++ with boost::factory

by Jens Weller

boost has a small library focusing on the creation of factories as functional objects, so that boost::factory is part of boost::functional. The library offers...

19 C++ User Group Meetings in August

by Jens Weller

5.8 C++ UG Saint Louis - "Fun with Lambdas" Lightning Talk\, Interview Questions and more
5.8 C++ UG Austin - Introduction to the QT Framework using C++ and QML
6.8 C++ UG Edinburgh - C++ Edinburgh
10.8 C++ UG Denver - Denver Tech Center C++ Developers
12.8 C++ UG Utah - Regular Monthly Meeting
12.8 C++ UG San Francisco/ Bay area - Presentation and Q&A
12.8 C++ UG Washington, DC - Q & A / Info Sharing
17.8 C++ UG Austin - North Austin Monthly C/C++ Pub Social
17.8 C++ UG Juce - Deploy Pure Data patches to any OS with JUCE
18.8 C++ UG Berlin - TBA
19.8 C++ UG Düsseldorf - Treffen der C++ User Gruppe NRW
19.8 C++ UG Hamburg - constexpr
20.8 C++ UG Ruhrgebiet - August Meetup - std::advance(CodingStandard, Modern::c++)
24.8 C++ UG Göteborg - Let's meetup and discuss the format for this group
25.8 C++ UG Chicago - Using NuGet to manage external dependencies in Visual C++ builds
26.8 C++ UG San Francisco/ Bay area - Workshop and Discussion Group
26.8 C++ UG Washington, DC - Q & A / Info Sharing
26.8 C++ UG Aarhus - Access Guards
27.8 C++ UG Munich - Pruning Error Messages From Your C++ Template Code

Bitesize Modern C++: Uniform initialization

by Glennan Carnie

C++98 has a frustratingly large number of ways of initialising an object.

(Note: not all these initialisations may be valid at the same time, or at all. We’re interested in the syntax here, not the semantics of the class X)

One of the design goals in C++11 was uniform initialisation syntax...

Trees, tree models and treeviews in Qt

by Jens Weller

On Tuesday I've announced this new series, this is the first installment showing the progress. The first thing I did when I started to work on my new application, was to implement a generic tree class, that then is exposed through not so generic tree model to Qt. The QTreeView then simply displays the data in the tree. My goals are, that the class containing the tree it self, is independent from Qt. Yet as its used in Qt, there are a few design decisions which reflect the needs of the Qt Model View system...

Either capture this or copy *this

by Marco Arena

This post is just a reminder to myself because I fell for it, again…Well, let me step back and explain the scenario...

Building Applications with Qt and boost

by Jens Weller

This is the start of a series of posts, in which I'll try to document my weekly work on a new application, build with Qt and boost. This first post is rather short, but I'd quickly try to give you an overview, why I use both Qt and boost in the same application. Regarding Qt, I wrote an introduction a two years ago, also for boost, there is an excellent website/tutorial about boost by Boris Schäling (buy his book! ). This series is not meant as a general introduction, yet I try to show you how and what I use of Qt and boost.

std::shared_ptr's secret constructor

by Anthony Williams

What does this secret constructor do for us? It allows us to construct a new shared_ptr instance that shares ownership with another shared_ptr, but which has a different pointer value...