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Clippy · Correctness

Transmute between unrelated types like float and pointer

clippy::wrong_transmute

Transmute only between types whose values mean the same thing, or convert with the dedicated method instead.

Category
Correctness
Default level
warn
Tier
P1
Producer
Clippy
Diff scope
line

Not a defect when

There is effectively no such case: transmuting between such types is useless or undefined, so the code always needs a real conversion.

What it reads

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

Tier

Serious: worth interrupting other work for.

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

Set it once in rust-doctor.toml

Upstream

Clippy's own documentation for this lint

Other Correctness rules