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Clippy · Correctness

Transmute between a type and its pointer

clippy::crosspointer_transmute

Dereference the pointer or take the value's address instead of reinterpreting one as the other.

Category
Correctness
Default level
warn
Tier
P2
Producer
Clippy
Diff scope
line

Not a defect when

The value is an opaque handle that a C API documents as interchangeable with a pointer to its own type, and the transmute mirrors that documented representation in FFI glue.

What it reads

Clippy, with the compiler behind it. The only pass that compiles.

Tier

Ordinary defect.

The tier bounds how severe a rule may be; its category bounds the tier.

Diff scope

The changed line itself.

What --scope contextual looks at to decide whether a change caused the finding.

Change it

Turn it off, or make it blocking, without touching the code it flags:

rust-doctor --rule clippy::crosspointer_transmute=off .
rust-doctor --rule clippy::crosspointer_transmute=error .

Set it once in rust-doctor.toml

Upstream

Clippy's own documentation for this lint

Other Correctness rules