diff options
Diffstat (limited to 'library/std/src')
| -rw-r--r-- | library/std/src/primitive_docs.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/library/std/src/primitive_docs.rs b/library/std/src/primitive_docs.rs index b22adbbe3d3..7aca5451ebc 100644 --- a/library/std/src/primitive_docs.rs +++ b/library/std/src/primitive_docs.rs @@ -489,8 +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. +/// Note that `[expr; 0]` is allowed, and produces an empty array. +/// This will still evaluate `expr`, however, and immediately drop the resulting value, so +/// be mindful of side effects. /// /// Arrays of *any* size implement the following traits if the element type allows it: /// |