Hi,
Consider these two examples:
1)
let mut file = File::open(filename);
file.read(buf);
2)
let file = File::open(filename);
let mut reader = BufferedReader::new(file);
reader.read(buf);
My question is: in example 2, why doesn't BufferedReader need "file" to
be mutable? After all, BufferedReader ends up calling file.read(), which
needs a mutable reference to the file.
It looks like I'm able to "bypass" the mutability requirement, just
because I wrap the file inside a BufferedReader?
// David
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