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error: transmuting a known null pointer into a function pointer
--> tests/ui/transmute_null_to_fn.rs:9:23
|
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
--> tests/ui/transmute_null_to_fn.rs:12:23
|
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
--> tests/ui/transmute_null_to_fn.rs:23:23
|
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: transmuting a known null pointer into a function pointer
--> tests/ui/transmute_null_to_fn.rs:33:23
|
LL | let _: fn() = std::mem::transmute(0 as *const u8 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
error: transmuting a known null pointer into a function pointer
--> tests/ui/transmute_null_to_fn.rs:36:23
|
LL | let _: fn() = std::mem::transmute(std::ptr::null::<()>() as *const u8);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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
--> tests/ui/transmute_null_to_fn.rs:39:23
|
LL | let _: fn() = std::mem::transmute(ZPTR as *const u8);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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 6 previous errors
|
