Png++ aims to provide a simple yet powerful C++ interface to libpng, the PNG reference implementation library.
Using raw libpng in C++ may impose a serious challenge since lots of precautions must be taken to handle initialization/deinitialization of control structures as well as handling errors correctly. With png++ you can read or write PNG images just in a single line of C++ code....

Building and Testing, with CMake, a the monolithic Boost (as opposed to the current Ryppl initiative).
That project will migrate to Ryppl as soon as possible, i.e., when "modularised" will have become packaging-friendly enough.

FeetWetCoding is a set of source and documentation that helps the beginning programmer as they learn C++, using the Qt SDK.

GNUMach 2.x will use the drivers provided by OSKit. Some Hurd hackers wanted a way to keep track of the various patches which were posted ons ome mailing list. The maintainers of OSKit will hopefully include then these patches in their official releases later. So this repository is basically an unofficial work in progress project....

A simple character auto path search demo that use Ogre3d & Micropather.,

Meique is a simple build system for C and C++ which uses Lua as scripting language.

Boost.PHP is a set of C++ header files that allows you to create your PHP extension in C++ without any obfuscating ZEND_* / PHP_* macros, like the glorious Boost.Python after which this is loosely designed

Windows Audio Player with custom playlist. Based on DirectX and bass.
Key features: song rating and filtering, tabs, bookmarks, searching, hiding dirs, global hot keys.

Asynchronous C++11 Logger. Its a spin-off from the popular g2log project. g3log focus is on making it easy for coders to ad their own custom made sinks while being as efficient, or more efficient compared to g2log.

Cheers
Kjell

Channelflow is a software system for numerical analysis of the incompressible Navier-Stokes flow in channel geometries, written in C++.