[sheept]

Python is 0-indexed. In OP's example, the start parameter makes i start at 1.

Their C++17 example prints starting from 0. Probably a mistake.

If you look at the linked page for C++20[0], other types can be put in the initializer statement, so it's unlikely the loop auto-increments.

[0]: https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p06...

[kbenson]

So, it's just a while loop in a for loop's clothing? That's not going to be confusing for people at all...

[comex]

No, it's a for loop that happens to include an unrelated variable declaration.

[kbenson]

Ah, I see. The increment is so they can manually handle the included feature of the other cases, which number of the iteration you're on. Nice that it will automatically loop across a collection, annoying that they couldn't go the whole way and you need to deal with it manually.