A safe and fast string library. It's buffer overflow and aliasing safe, high performance. The library includes a robust C++ wrapper that uses overloaded operators and rich constructors to make the CBstring struct a natural and powerful string abstraction.

Open source C library implementing synchronous multithreading with prioritized scheduling and message passing.

Cross-platform compression libraries. [Open source, Commercial]

A small, static libc optimized for small size.

Fast free C FFT library; includes multi-dimensional, real-complex, and parallel transforms.

An easy to use library that allows programmers to integrate fingerprint technology into their software without specific know-how. Fast, easy to use, and small; great for embedded systems. [Open source, MPL]

ForbiSoft DIB Library provides platform independent bitmap loading. ForbiSoft ToolTip Library provides platform independent tooltip display. Target Win32 or Windows CE with the same code. Shipped as source code and will compile with Microsoft eMbedded...

A free numerical library for C programmers. [Open source, GPL]

C programming library providing a virtual i386 running in protected mode.

An ANSI C library, for parsing command line arguments and options according to GNU standards. [Open source, GPL]