diff options
Diffstat (limited to 'library/std/src')
| -rw-r--r-- | library/std/src/primitive_docs.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/library/std/src/primitive_docs.rs b/library/std/src/primitive_docs.rs index 55171ef2292..b22adbbe3d3 100644 --- a/library/std/src/primitive_docs.rs +++ b/library/std/src/primitive_docs.rs @@ -489,6 +489,9 @@ mod prim_pointer {} /// * A repeat expression `[x; N]`, which produces an array with `N` copies of `x`. /// The type of `x` must be [`Copy`]. /// +/// Note that `[x; 0]` is a valid repeat expression. This will produce an empty array +/// but will also initialize (or call) `x`, which may produce side effects. +/// /// Arrays of *any* size implement the following traits if the element type allows it: /// /// - [`Copy`] |