This prefix header adds `SXRelease()`, `SXFree()` and `SXLog()` which can be used instead of `-[ release]`, `free()` and `NSLog()`. In order to use `SXLog()`, you must have DEBUG defined somewhere, such as in the build settings of the debug configuration.

Please note that the `while(0){}` is to prevent errors where a single `;` is not permitted. The optimizer will remove this from the assembly code.