diff options
| -rw-r--r-- | library/core/src/primitive_docs.rs | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/library/core/src/primitive_docs.rs b/library/core/src/primitive_docs.rs index f3695d16d7a..6b42380d37c 100644 --- a/library/core/src/primitive_docs.rs +++ b/library/core/src/primitive_docs.rs @@ -283,7 +283,7 @@ mod prim_never {} /// `char` type. For technical reasons, there is additional, separate /// documentation in [the `std::char` module](char/index.html) as well. /// -/// # Validity +/// # Validity and Layout /// /// A `char` is a '[Unicode scalar value]', which is any '[Unicode code point]' /// other than a [surrogate code point]. This has a fixed numerical definition: @@ -330,6 +330,13 @@ mod prim_never {} /// ("noncharacters"); and some may be given different meanings by different /// users ("private use"). /// +/// `char` is guaranteed to have the same size and alignment as `u32` on all +/// platforms. +/// ``` +/// use std::alloc::Layout; +/// assert_eq!(Layout::new::<char>(), Layout::new::<u32>()); +/// ``` +/// /// [Unicode code point]: https://www.unicode.org/glossary/#code_point /// [Unicode scalar value]: https://www.unicode.org/glossary/#unicode_scalar_value /// [non-exhaustive match]: ../book/ch06-02-match.html#matches-are-exhaustive |