mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-18 00:53:31 +00:00
28 lines
1.4 KiB
Text
28 lines
1.4 KiB
Text
error: transmuting a known null pointer into a function pointer
|
|
--> $DIR/transmute_null_to_fn.rs:8:23
|
|
|
|
|
LL | let _: fn() = std::mem::transmute(0 as *const ());
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this transmute results in undefined behavior
|
|
|
|
|
= help: try wrapping your function pointer type in `Option<T>` instead, and using `None` as a null pointer value
|
|
= note: `-D clippy::transmute-null-to-fn` implied by `-D warnings`
|
|
= help: to override `-D warnings` add `#[allow(clippy::transmute_null_to_fn)]`
|
|
|
|
error: transmuting a known null pointer into a function pointer
|
|
--> $DIR/transmute_null_to_fn.rs:10:23
|
|
|
|
|
LL | let _: fn() = std::mem::transmute(std::ptr::null::<()>());
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this transmute results in undefined behavior
|
|
|
|
|
= help: try wrapping your function pointer type in `Option<T>` instead, and using `None` as a null pointer value
|
|
|
|
error: transmuting a known null pointer into a function pointer
|
|
--> $DIR/transmute_null_to_fn.rs:21:23
|
|
|
|
|
LL | let _: fn() = std::mem::transmute(ZPTR);
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^ this transmute results in undefined behavior
|
|
|
|
|
= help: try wrapping your function pointer type in `Option<T>` instead, and using `None` as a null pointer value
|
|
|
|
error: aborting due to 3 previous errors
|
|
|