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Rollup of 4 pull requests #85886

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merged 8 commits into from
Jun 1, 2021
Merged

Rollup of 4 pull requests #85886

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96a5e6b
fix split-debuginfo error message
infinity0 May 19, 2021
79575a1
Mention "null pointer optimization" in option docs.
jsha May 29, 2021
10bafe1
Remove toggle for "undocumented items."
jsha May 23, 2021
2970479
Fix details rustdoc toggle for blanket impl
pickfire May 31, 2021
2ffe87a
Rollup merge of #85473 - infinity0:master, r=jackh726
GuillaumeGomez Jun 1, 2021
085691b
Rollup merge of #85622 - jsha:untoggle-undocumented, r=GuillaumeGomez
GuillaumeGomez Jun 1, 2021
f4d3f32
Rollup merge of #85826 - jsha:npo, r=joshtriplett
GuillaumeGomez Jun 1, 2021
82b84bf
Rollup merge of #85860 - pickfire:patch-5, r=GuillaumeGomez
GuillaumeGomez Jun 1, 2021
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2 changes: 2 additions & 0 deletions library/core/src/option.rs
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Expand Up @@ -83,6 +83,8 @@
//! * [`ptr::NonNull<U>`]
//! * `#[repr(transparent)]` struct around one of the types in this list.
//!
//! This is called the "null pointer optimization" or NPO.
//!
//! It is further guaranteed that, for the cases above, one can
//! [`mem::transmute`] from all valid values of `T` to `Option<T>` and
//! from `Some::<T>(_)` to `T` (but transmuting `None::<T>` to `T`
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