[jzwinck]

I have done a bit of this too. The main downside in C++ is that you end up writing a few more ternary operators than you otherwise may have. But it is nice to be able to look at the first assignment of a variable and know it is the only one.

[5hoom]

Yeah it kind of feels dirty having all these mutable variables around after doing any functional programming at all.

I've found using const a lot also goes hand-in-hand with raii. If a member of a class is const it must be initialized in the constructor, and it just seems to make me code a bit more "hygienically".