Skip to content

rustdoc: Show that repeated expression arrays can be made with constant values #108531

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 2 commits into from
Mar 1, 2023
Merged

rustdoc: Show that repeated expression arrays can be made with constant values #108531

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
dc97326
Update docs to show [expr; N] can repeat const expr
Coca162 Feb 27, 2023
22b65fc
Clarify that Copy is a trait in array docs
Coca162 Feb 27, 2023
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
6 changes: 4 additions & 2 deletions library/core/src/primitive_docs.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -587,8 +587,10 @@ mod prim_pointer {}
/// There are two syntactic forms for creating an array:
///
/// * A list with each element, i.e., `[x, y, z]`.
/// * A repeat expression `[x; N]`, which produces an array with `N` copies of `x`.
/// The type of `x` must be [`Copy`].
/// * A repeat expression `[expr; N]` where `N` is how many times to repeat `expr` in the array. `expr` must either be:
///
/// * A value of a type implementing the [`Copy`] trait
/// * A `const` value
///
/// Note that `[expr; 0]` is allowed, and produces an empty array.
/// This will still evaluate `expr`, however, and immediately drop the resulting value, so
Expand Down
6 changes: 4 additions & 2 deletions library/std/src/primitive_docs.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -587,8 +587,10 @@ mod prim_pointer {}
/// There are two syntactic forms for creating an array:
///
/// * A list with each element, i.e., `[x, y, z]`.
/// * A repeat expression `[x; N]`, which produces an array with `N` copies of `x`.
/// The type of `x` must be [`Copy`].
/// * A repeat expression `[expr; N]` where `N` is how many times to repeat `expr` in the array. `expr` must either be:
///
/// * A value of a type implementing the [`Copy`] trait
/// * A `const` value
///
/// Note that `[expr; 0]` is allowed, and produces an empty array.
/// This will still evaluate `expr`, however, and immediately drop the resulting value, so
Expand Down