.reset vs ->reset

[lefticus]

If you have a pointer like thing that contains a pointer like thing.

std::optional<std::unique_ptr<>> for example

[fcolecumberri]

Why would you have a std::optional<std::unique_ptr<>>? I mean, it would make sense if std::unique_ptr could not be empty (Actually that would make more sense), but since std::unique_ptr can be empty, using std::unique_ptr over std::optional<std::unique_ptr<>> is better.

[lefticus]

It was just the first example I came up with. The point being, anything with a pointer-like interface containing anything with a pointer-like interface.

This is based on a real issue I had someone DM to me about their own code.

[lefticus]

https://compiler-explorer.com/z/b1PbPcP9n

[lefticus]

Coming in Ep 424