kid0m4n/rays — pull request #25 by t-mat (2013-10-10 15:46:03+00:00)
Title: C++: Shorter main() and less arguments for some functions

- Create `worker()` instead of `lambda[]()`
- I've moved `g, a, b, c, ar, orig0` into the `worker()` for readability. It increase amout of calculation but negligible.
- Create `clamp()` instead of `clamp[]()`
- Modify `tracer()`'s argument and result type
- Now `tracer()` just return the value, it will not modify the references.
- Introduce [AAA style](http://herbsutter.com/2013/08/12/gotw-94-solution-aaa-style-almost-always-auto/)
- Some initializer are still traditional style for compatibility reason.