It's unQLite. Like SQLite, it's a self-contained, serverless, zero-configuration, transactional database engine but with one big difference; it's for NoSQL.

In their words "UnQLite is 100% hand-coded, written in ANSI C, Thread-safe, Full reentrant, compiles unmodified and should run in most platforms including restricted embedded devices with a C compiler. UnQLite is extensively tested on Windows and UNIX systems especially Linux, FreeBSD, Oracle Solaris and Mac OS X.".

There's also an embedded scipting language Jx9 that looks a lot like PHP with over 312 functions and 143 constants. Both Jx9 and unQLite are definitely worth a detailed play!

• Link permanently added to Cross platform C Code Library

If you're thinking of doing any GPU programming, using the Graphical Processor in your video card, if it's NVIDIA, then the one place you should be looking for information and software is the NVIDIA CUDA documentation.

There's also an excellent introduction to Modern GPU as well with source code. One very trendy use of GPU's is in Bitcoin Mining, using the GPU to perform mathematical operations. That said, the alternative technology to CUDA is OpenCL and there's a bit of a clash over which has the best BitCoin implementation. I'm not into Bitcoin though so I'll leave that one up to you.

• Permanent link added to the C Area

It's been an unusual week. On Thursday I registered a new domain, did the usual webmaster thing by adding it to Google webmaster tools and on Friday, less than 24 hours later it was on the first page of Google.com at #2 position for a search (to be fair, an exact match to the domain) out of 840,000 results.

More interesting I was thinking about website scalability and read this article on storing schema less data and using a separate table for indexes.

Doing it this way avoids the huge problems with indexes on multi million row tables that can take hours to update. We had that at my last work where a very much used table could only be altered at weekends and even then it took well over 24 hours. Managing production data can be a real nigfhtmare some days!

I've been curating a list of free C Compilers and came across SubC today. This is a subset of full C and intended for teaching rather than production. It's recently added Windows support with MingW.

The author uses the compiler to teach about compiler construction in his book Practical Compiler Construction.

• Here's the full list of free C compilers