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Update docs to show [expr; N] can repeat const expr

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Coca162 2023-02-27 13:51:10 +00:00
parent 49b9cc5139
commit dc9732620d
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2 changed files with 8 additions and 4 deletions
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6
library/core/src/primitive_docs.rs
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@ -587,8 +587,10 @@ mod prim_pointer {}
/// There are two syntactic forms for creating an array: /// There are two syntactic forms for creating an array:
/// ///
/// * A list with each element, i.e., `[x, y, z]`. /// * A list with each element, i.e., `[x, y, z]`.
/// * A repeat expression `[x; N]`, which produces an array with `N` copies of `x`. /// * A repeat expression `[expr; N]` where `N` is how many times to repeat `expr` in the array. `expr` must either be:
/// The type of `x` must be [`Copy`]. ///
/// * A value of type `Copy`
/// * A `const` value
/// ///
/// Note that `[expr; 0]` is allowed, and produces an empty array. /// Note that `[expr; 0]` is allowed, and produces an empty array.
/// This will still evaluate `expr`, however, and immediately drop the resulting value, so /// This will still evaluate `expr`, however, and immediately drop the resulting value, so

6
library/std/src/primitive_docs.rs
View File

@ -587,8 +587,10 @@ mod prim_pointer {}
/// There are two syntactic forms for creating an array: /// There are two syntactic forms for creating an array:
/// ///
/// * A list with each element, i.e., `[x, y, z]`. /// * A list with each element, i.e., `[x, y, z]`.
/// * A repeat expression `[x; N]`, which produces an array with `N` copies of `x`. /// * A repeat expression `[expr; N]` where `N` is how many times to repeat `expr` in the array. `expr` must either be:
/// The type of `x` must be [`Copy`]. ///
/// * A value of type `Copy`
/// * A `const` value
/// ///
/// Note that `[expr; 0]` is allowed, and produces an empty array. /// Note that `[expr; 0]` is allowed, and produces an empty array.
/// This will still evaluate `expr`, however, and immediately drop the resulting value, so /// This will still evaluate `expr`, however, and immediately drop the resulting value, so