Skip to content

Clarify transmute_copy documentation example #66477

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Nov 17, 2019
Merged

Clarify transmute_copy documentation example #66477

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 5 additions & 5 deletions src/libcore/mem/mod.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -744,20 +744,20 @@ pub fn drop<T>(_x: T) { }
/// bar: u8,
/// }
///
/// let foo_slice = [10u8];
/// let foo_array = [10u8];
///
/// unsafe {
/// // Copy the data from 'foo_slice' and treat it as a 'Foo'
/// let mut foo_struct: Foo = mem::transmute_copy(&foo_slice);
/// // Copy the data from 'foo_array' and treat it as a 'Foo'
/// let mut foo_struct: Foo = mem::transmute_copy(&foo_array);
/// assert_eq!(foo_struct.bar, 10);
///
/// // Modify the copied data
/// foo_struct.bar = 20;
/// assert_eq!(foo_struct.bar, 20);
/// }
///
/// // The contents of 'foo_slice' should not have changed
/// assert_eq!(foo_slice, [10]);
/// // The contents of 'foo_array' should not have changed
/// assert_eq!(foo_array, [10]);
/// ```
#[inline]
#[stable(feature = "rust1", since = "1.0.0")]
Expand Down