Read XOR linked list. Nice trick. But not practical. On modern CPU with cache unrolled lists are faster.

Read about Unrolled linked lists.

Read Improving code readability in iOS development. Holy war in comments about weak/strong outlets confused me a bit.

Read how to create Xcode project from make file Simple C++: From Makefiles to Xcode Builds. And this Setup a C/C++ makefile project in Xcode: syntax highlight, autocompletion, jump to definition… and more! which I fine much better!