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Diffstat (limited to 'src')
| -rw-r--r-- | src/doc/trpl/references-and-borrowing.md | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/doc/trpl/references-and-borrowing.md b/src/doc/trpl/references-and-borrowing.md index d1d3063138e..a7a77539f79 100644 --- a/src/doc/trpl/references-and-borrowing.md +++ b/src/doc/trpl/references-and-borrowing.md @@ -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 |