I recommend reading K&R (http://en.wikipedia.org/wiki/The_C_Programming_Language) if you haven't already. It's got all sorts of elegant tricks like this. But of course it depends on very particular implementation details at times.
Don't worry, I have (hence my disbelief at the first comment). Funny we've come full circle (via e.g. Java) back to the point where that is valid code.
