rust-clippy/tests/ui/as_ptr_cast_mut.stderr
Nilstrieb b91dc03510
Add as_ptr_cast_mut lint
This lint detects calls to a `&self`-taking `as_ptr` method, where
the result is then immediately cast to a `*mut T`. Code like this
is probably invalid, as that pointer will not have write permissions,
and `*mut T` is usually used to write through.
2022-10-01 19:23:53 +02:00

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Text

error: casting the result of `as_ptr` to *mut u8
--> $DIR/as_ptr_cast_mut.rs:21:13
|
LL | let _ = string.as_ptr() as *mut u8;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `string.as_mut_ptr()`
|
= note: `-D clippy::as-ptr-cast-mut` implied by `-D warnings`
error: casting the result of `as_ptr` to *mut i8
--> $DIR/as_ptr_cast_mut.rs:22:22
|
LL | let _: *mut i8 = string.as_ptr() as *mut _;
| ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `string.as_mut_ptr()`
error: aborting due to 2 previous errors