mirror of
https://github.com/rust-lang/rust.git
synced 2025-11-03 22:49:17 +00:00
52 lines
2.4 KiB
Plaintext
52 lines
2.4 KiB
Plaintext
error: under strict provenance it is considered bad style to cast pointer `*const u8` to integer `usize`
|
|
--> $DIR/lint-strict-provenance-lossy-casts.rs:6:23
|
|
|
|
|
LL | let addr: usize = &x as *const u8 as usize;
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= help: if you can't comply with strict provenance and need to expose the pointer provenance you can use `.expose_provenance()` instead
|
|
note: the lint level is defined here
|
|
--> $DIR/lint-strict-provenance-lossy-casts.rs:2:9
|
|
|
|
|
LL | #![deny(lossy_provenance_casts)]
|
|
| ^^^^^^^^^^^^^^^^^^^^^^
|
|
help: use `.addr()` to obtain the address of a pointer
|
|
|
|
|
LL | let addr: usize = (&x as *const u8).addr();
|
|
| + ~~~~~~~~
|
|
|
|
error: under strict provenance it is considered bad style to cast pointer `*const u8` to integer `u32`
|
|
--> $DIR/lint-strict-provenance-lossy-casts.rs:9:22
|
|
|
|
|
LL | let addr_32bit = &x as *const u8 as u32;
|
|
| ^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= help: if you can't comply with strict provenance and need to expose the pointer provenance you can use `.expose_provenance()` instead
|
|
help: use `.addr()` to obtain the address of a pointer
|
|
|
|
|
LL | let addr_32bit = (&x as *const u8).addr() as u32;
|
|
| + ~~~~~~~~~~~~~~~
|
|
|
|
error: under strict provenance it is considered bad style to cast pointer `*const u8` to integer `usize`
|
|
--> $DIR/lint-strict-provenance-lossy-casts.rs:14:20
|
|
|
|
|
LL | let ptr_addr = ptr as usize;
|
|
| ^^^---------
|
|
| |
|
|
| help: use `.addr()` to obtain the address of a pointer: `.addr()`
|
|
|
|
|
= help: if you can't comply with strict provenance and need to expose the pointer provenance you can use `.expose_provenance()` instead
|
|
|
|
error: under strict provenance it is considered bad style to cast pointer `*const u8` to integer `u32`
|
|
--> $DIR/lint-strict-provenance-lossy-casts.rs:16:26
|
|
|
|
|
LL | let ptr_addr_32bit = ptr as u32;
|
|
| ^^^-------
|
|
| |
|
|
| help: use `.addr()` to obtain the address of a pointer: `.addr() as u32`
|
|
|
|
|
= help: if you can't comply with strict provenance and need to expose the pointer provenance you can use `.expose_provenance()` instead
|
|
|
|
error: aborting due to 4 previous errors
|
|
|