Bitcoin is a peer-to-peer electronic cash system that is completely decentralized, without the need for a central server or trusted parties. Users hold the crypto keys to their own money and transact directly with each other, with the help of a P2P network to check for double-spending.
Config4*, pronounced "config for star", is a family of configuration-file parsers. It currently provides C++ and Java implementations. It offers an incredibly flexible and user-friendly syntax and an API with powerful features not available in other configuration technologies such as XML, JSON, Java properties, or the Windows Registry. The comprehensive and easy-to-read documentation includes a getting started guide, expert tips, API reference manuals, and a maintenance guide.
The Libxmp Core Mod Player, or Coremod for short, is a small, lightweight subset of Libxmp with full API compatibility released under a permissive license. Coremod supports the four main module formats (MOD, XM, S3M, and IT), and is intended for use in games and other applications where extensive format support or file decompression are not required.
CreEPS is a collection of C++ classes that provide an easy-to-use interface for generating vector plots from within code. The drawings are stored as Encapsulated Postscript (EPS) files. It features all basic drawing elements, user-configurable fill types, and printf-style text output. Extensive documentation with many examples is included.