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Mention slice patterns in array #61652

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Jun 12, 2019
Merged

Mention slice patterns in array #61652

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1a32a68
Mention slice patterns
JohnTitor Jun 8, 2019
3cfceb9
Add an example
JohnTitor Jun 10, 2019
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14 changes: 12 additions & 2 deletions src/libstd/primitive_docs.rs
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Expand Up @@ -482,8 +482,8 @@ mod prim_pointer { }
/// an array. Indeed, this provides most of the API for working with arrays.
/// Slices have a dynamic size and do not coerce to arrays.
///
/// There is no way to move elements out of an array. See [`mem::replace`][replace]
/// for an alternative.
/// You can move elements out of an array with a slice pattern. If you want
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/// one element, see [`mem::replace`][replace].
///
/// # Examples
///
Expand Down Expand Up @@ -525,6 +525,16 @@ mod prim_pointer { }
/// for x in &array { }
/// ```
///
/// You can use a slice pattern to move elements out of an array:
///
/// ```
/// fn move_away(_: String) { /* Do interesting things. */ }
///
/// let [john, roa] = ["John".to_string(), "Roa".to_string()];
/// move_away(john);
/// move_away(roa);
/// ```
///
/// [slice]: primitive.slice.html
/// [copy]: marker/trait.Copy.html
/// [clone]: clone/trait.Clone.html
Expand Down