C++ lambda

Hello, everybody.
I just compile gcc/g++ 4.5 20091112 snapshot and wanna make some experiments with lambda implementation in C++. Mainly how it will act as a first class value, and usability as iterator(generator). Ofcourse also how fast it will be, for example in Lua lambda is cheaper then creating high level structures(tables). Did some of you got experience with it?

Also since I’m new to SuSE, I’m curious of it’s directory organization, couse honestly, don’t wanna this snapshot of gcc to be my default compiler. Every suggestion at that direction are also extreamly appreciated.

Thanx, k.