I didn't know any better name for a title of the question.

For ex: on one of my previous questions one answered ((a)-(b))&0x80000000) >> 31 - this is kind of a too advanced for me and i can't really get what it means. I am not looking just for an answer of that, but i need someone to tell me some books/sites/whatever where i can learn this cool "advanced" tricks in C - and learn how and where to use them respectively too.