//@ we wanted! Can't we somehow give `vec_min` access to the vector, while retaining ownership of it?
//@
//@ Rust calls this *a reference* the vector, and it considers references as *borrowing* ownership. This
-//@ works a bit like borrowing does in the real world: If you borrow a book to your friend, your friend
+//@ works a bit like borrowing does in the real world: If your friend borrows a book from you, your friend
//@ can have it and work on it (and you can't!) as long as the book is still borrowed. Your friend could
-//@ even borrow the book to someone else. Eventually however, your friend has to give the book back to you,
+//@ even lend the book to someone else. Eventually however, your friend has to give the book back to you,
//@ at which point you again have full control.
//@
//@ Rust distinguishes between two kinds of references. First of all, there's the *shared* reference.
vec_min(&v);
println!("The first element is: {}", *first);
}
-//@ What's going on here? First, `&` is how you borrow ownership to someone - this operator creates a shared reference.
+//@ What's going on here? First, `&` is how you lend ownership to someone - this operator creates a shared reference.
//@ `shared_ref_demo` creates three shared references to `v`:
//@ The reference `first` begins in the 2nd line of the function and lasts all the way to the end. The other two
//@ references, created for calling `vec_min`, only last for the duration of that respective call.
// ## Unique, mutable references
//@ There is a second way to borrow something, a second kind of reference: The *mutable reference*. This is a reference that comes with the promise
-//@ that nobody else has *any kind of access* to the referee - there is no aliasing. It is thus always safe to perform mutation through such a reference.
+//@ that nobody else has *any kind of access* to the referee - in contrast to shared references, there is no aliasing with mutable references. It is thus always safe to perform mutation through such a reference.
//@ Because there cannot be another reference to the same data, we could also call it a *unique* reference, but that is not their official name.
//@ As an example, consider a function which increments every element of a vector by 1.