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Add small clarification around using pointers derived from references #103996

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Nov 13, 2022
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Add small clarification around using pointers derived from references #103996

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4 changes: 2 additions & 2 deletions library/core/src/ptr/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -35,7 +35,8 @@
//! be used for inter-thread synchronization.
//! * The result of casting a reference to a pointer is valid for as long as the
//! underlying object is live and no reference (just raw pointers) is used to
//! access the same memory.
//! access the same memory. That is, reference and pointer accesses cannot be
//! interleaved.
//!
//! These axioms, along with careful use of [`offset`] for pointer arithmetic,
//! are enough to correctly implement many useful things in unsafe code. Stronger guarantees
Expand Down Expand Up @@ -64,7 +65,6 @@
//! separate allocated object), heap allocations (each allocation created by the global allocator is
//! a separate allocated object), and `static` variables.
//!
//!
//! # Strict Provenance
//!
//! **The following text is non-normative, insufficiently formal, and is an extremely strict
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