The Redis source code is hand down the best C I've ever seen. And it's not just the code that's beautiful - the tests are too. https://github.com/antirez/redis

The Redis source code is hand down the best C I've ever seen. And it's not just the code that's beautiful - the tests are too. https://github.com/antirez/redis/blob/unstable/src/dict.c https://github.com/antirez/redis/blob/unstable/src/dict.c