diff options
Diffstat (limited to 'tests/ui/pin_project/packed.stderr')
| -rw-r--r-- | tests/ui/pin_project/packed.stderr | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/tests/ui/pin_project/packed.stderr b/tests/ui/pin_project/packed.stderr new file mode 100644 index 0000000..40a955e --- /dev/null +++ b/tests/ui/pin_project/packed.stderr @@ -0,0 +1,57 @@ +error: reference to packed field is unaligned + --> tests/ui/pin_project/packed.rs:5:1 + | +5 | / pin_project! { //~ ERROR reference to packed field is unaligned +6 | | #[repr(packed, C)] +7 | | struct Packed { +8 | | #[pin] +9 | | field: u16, +10 | | } +11 | | } + | |_^ + | +note: the lint level is defined here + --> tests/ui/pin_project/packed.rs:5:1 + | +5 | / pin_project! { //~ ERROR reference to packed field is unaligned +6 | | #[repr(packed, C)] +7 | | struct Packed { +8 | | #[pin] +9 | | field: u16, +10 | | } +11 | | } + | |_^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523> + = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) + = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) + = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: reference to packed field is unaligned + --> tests/ui/pin_project/packed.rs:13:1 + | +13 | / pin_project! { //~ ERROR reference to packed field is unaligned +14 | | #[repr(packed(2))] +15 | | struct PackedN { +16 | | #[pin] +17 | | field: u32, +18 | | } +19 | | } + | |_^ + | +note: the lint level is defined here + --> tests/ui/pin_project/packed.rs:13:1 + | +13 | / pin_project! { //~ ERROR reference to packed field is unaligned +14 | | #[repr(packed(2))] +15 | | struct PackedN { +16 | | #[pin] +17 | | field: u32, +18 | | } +19 | | } + | |_^ + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523> + = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) + = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers) + = note: this error originates in the macro `$crate::__pin_project_internal` (in Nightly builds, run with -Z macro-backtrace for more info) |