`while`? That's just sugar on top of `loop` that automatically inserts an `if` and a `break` for you. Don't be lazy, spell it out.

(Although, in Rust, `if` is also actually just sugar over `match`, so, uh...)

For and while have different semantics. For is not just sugar for a while loop, it means something more specific and restricted than a general while.

For _is_ "just sugar for a while loop". In fact, here's the Rust documentation detailing what a `for` loop "de-sugars" down to: http://doc.rust-lang.org/nightly/std/iter/#for-loops-and-int...

> it means something more specific and restricted than a general while

Sure, but that's still sugar. That's what sugar is.

Want to know something really crazy? In Rust, the `if` keyword is also just syntactic sugar over `match`. Still finding bits of grey matter on the walls from when I learned that one.