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move of packed fields might or might not occur when they actually are sufficiently aligned #63374

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merged 2 commits into from
Aug 9, 2019
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move of packed fields might or might not occur when they actually are sufficiently aligned #63374

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e82b053
move of packed fields might or might not occur when they actually are…
RalfJung Aug 8, 2019
fa58c27
remove confusing remark
RalfJung Aug 8, 2019
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3 changes: 2 additions & 1 deletion src/libcore/pin.rs
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Expand Up @@ -188,7 +188,8 @@
//! you do not accidentally use `self`/`this` in a way that is in conflict with pinning.
//!
//! Moreover, if your type is `#[repr(packed)]`, the compiler will automatically
//! move fields around to be able to drop them. As a consequence, you cannot use
//! move fields around to be able to drop them. It might even do
//! that for fields that happen to be sufficiently aligned. As a consequence, you cannot use
//! pinning with a `#[repr(packed)]` type.
//!
//! # Projections and Structural Pinning
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