empty lines
This commit is contained in:
parent
8286075346
commit
beb072a893
@ -187,9 +187,12 @@ use ops::{Deref, DerefMut, CoerceUnsized};
|
||||
use ptr;
|
||||
|
||||
/// A mutable memory location.
|
||||
///
|
||||
/// # Examples
|
||||
///
|
||||
/// Here you can see how using `Cell<T>` allows to use mutable field inside
|
||||
/// immutable struct (which is also called 'interior mutability').
|
||||
///
|
||||
/// ```
|
||||
/// use std::cell::Cell;
|
||||
///
|
||||
@ -204,8 +207,10 @@ use ptr;
|
||||
/// };
|
||||
///
|
||||
/// let new_value = 100;
|
||||
///
|
||||
/// // ERROR, because my_struct is immutable
|
||||
/// // immutable.regular_field = new_value;
|
||||
///
|
||||
/// // WORKS, although `my_struct` is immutable, field `special_field` is mutable because it is Cell
|
||||
/// immutable.special_field.set(new_value);
|
||||
/// assert_eq!(immutable.special_field.get(), new_value);
|
||||
|
Loading…
Reference in New Issue
Block a user