Dlib is a C++ toolkit containing machine learning algorithms and tools for creating complex software in C++ to solve real world problems.
Library of generic, k-d tree multi-dimensional containers
Spatial is a generic header-only C++ library providing multi-dimensional in-memory containers, iterators and functionals. Spatial is a general purpose library with good overall performance thanks to its self-balancing k-d tree containers. Spatial makes it easy to search for nearest neighbors, orthogonal ranges, or perform ordering of objects in any number of dimensions. Spatial's design borrows heavily from the STL, and strives to follow it's elegant interface; therefore Spatial's containers, iterators and functionals integrate well with the STL. Additionally, Spatial's self-balancing kd-tree based containers, capable of object insertion and removal in fractional amortized time, prevent worst-case computational time on most operations. The latest release brings bug fixes and wide array of performance improvement across several algorithms. Nearest neighbor search, in particular, has been improved significantly.
A Boost.Application allows a developer run your application as a Windows service, as a Unix/Linux daemon, or as a usual interactive application (terminal) without the need to add extra code, the library abstract OS specific API and provide a ease common interface. To version beta4 (aspect based), check :https://github.com/retf/Boost.Application
This is a C++ logging library implementation which is accepted to Boost. It aims for extensibility and flexibility while moderately affecting user's application performance. Since being accepted, the library is developed and distributed as a part of Boost. Please, visit www.boost.org for more info.
<DEAD PROJECT> Hello Forge, currently in it's early development stage, is planned to be an alternative, cross platform toolkit and library for C++ programmers.
The OpenCL Extension Wrangler library is a spin-off from the CLCC project. This library allows you to load the OpenCL library at run-time and discover extensions supported by it.