example in chapter `Ownership` seems not correct about comprehensive-rust

[Gnosnay]

I believe here we need to introduce what the end of scope is.
E.g. the end of one code block, one pointer transfer to another function e.t.c

[mgeisler]

Hi @Yansongsongsong,

You are completely correct that the error message is about scopes and that the instructor will have to explain what a scope is at this point. That is normally super easy, though, since the course participants already know how to program. To my knowledge, a scope in Rust is the same as a scope in C++ (please correct me if I'm wrong?) and so I normally tell the students that.

To me, ownership is mostly a matter of who should deallocate this value when it goes out of scope? So that is why I start the discussion of borrowing and ownership with scopes.

We should eventually write something about this into speaker notes #53.

[Gnosnay]

Hi @Yansongsongsong,

You are completely correct that the error message is about scopes and that the instructor will have to explain what a scope is at this point. That is normally super easy, though, since the course participants already know how to program. To my knowledge, a scope in Rust is the same as a scope in C++ (please correct me if I'm wrong?) and so I normally tell the students that.

To me, ownership is mostly a matter of who should deallocate this value when it goes out of scope? So that is why I start the discussion of borrowing and ownership with scopes.

We should eventually write something about this into speaker notes #53.

hi @mgeisler ,
Thank you for your reply.
That sounds great. Looking forward to new version with spears notes!

Feel free to close this issue at any time.

[mgeisler]

Thanks, I'll close it for now.