SWISH++ is a Unix-based file indexing and searching engine (typically used to index and search files on web sites). It was based on SWISH-E although SWISH++ is a complete rewrite. SWISH++ was developed to circumvent my difficulties with using the SWISH-E package.

Our mission with ØMQ ("ZeroMQ") is to build the fastest messaging ever. The way to get performance is to optimise the whole software and hardware stack together.

Sollya is a tool environment for safe floating-point code development. It is particularily targeted to the automatized implementation of mathematical floating-point libraries (libm). Amongst other features, it offers a certified infinite norm and a fast Remez algorithm.

This library is intended for developers who wish to manipulate (read, parse, modify, and create) symbolic expressions from C or C++ programs. A symbolic expression, or s-expression, is essentially a LISP-like expression such as (a (b c)). S-expressions are able to represent complex, structured data without requiring additional meta-data describing the structure. They are recursively defined: an s-expression is a list of either atoms or s-expressions. In the example above, the expression contains an atom "a" and an s-expression, which in turn contains two atoms, "b" and "c". They are simple, useful, and well understood.

uBLAS is a C++ template class library that provides BLAS level 1, 2, 3 functionality for dense, packed and sparse matrices. The design and implementation unify mathematical notation via operator overloading and efficient code generation via expression templates.

Google's framework for writing C++ tests on a variety of platforms (Linux, Mac OS X, Windows, Windows CE, and Symbian). Based on the xUnit architecture. Supports automatic test discovery, a rich set of assertions, user-defined assertions, death tests, fatal and non-fatal failures, various options for running the tests, and XML test report generation.

Synopsis is a multi-language source code introspection tool that provides a variety of representations for the parsed code to enable further processing such as documentation extraction, reverse engineering, and source-to-source translation. Synopsis provides a framework of C++ and Python APIs to access these representations and allows Processor objects to be defined and composed into processing pipelines, making this framework very flexible and extensible.

The OO-Browser is an advanced object-oriented class browser with support for browsing C, C++, Common Lisp and its Object System (CLOS), Eiffel, Java, Objective-C, Python and Smalltalk. It runs atop Emacs/XEmacs on Linux, UNIX and Windows.

ICU is a mature, widely used set of C/C++ and Java libraries providing Unicode and Globalization support for software applications. ICU is widely portable and gives applications the same results on all platforms and between C/C++ and Java software.