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Auto merge of #27566 - rubymeow:master, r=steveklabnik

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I got a bit confused reading the guide over why all of a sudden there was an asterisk in the code. I was explained what it was there for in the IRC, and I think it should added it to the docs to prevent any further confusion!
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bors 2015-08-06 20:45:39 +00:00
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src/doc/trpl/references-and-borrowing.md
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@ -125,6 +125,10 @@ This will print `6`. We make `y` a mutable reference to `x`, then add one to
the thing `y` points at. You’ll notice that `x` had to be marked `mut` as well,
if it wasn’t, we couldn’t take a mutable borrow to an immutable value.
You'll also notice we added an asterisk (`*`) in front of `y`, making it `*y`,
this is because `y` is an `&mut` reference. You'll also need to use them for
accessing the contents of a reference as well.
Otherwise, `&mut` references are just like references. There _is_ a large
difference between the two, and how they interact, though. You can tell
something is fishy in the above example, because we need that extra scope, with