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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
| commit | 9835e2ae736235810b4ea1c162ca5e65c547e770 (patch) | |
| tree | 3fcebf40ed70e581d776a8a4c65923e8ec20e026 /tests/ui/packed/packed-struct-borrow-element.stderr | |
| parent | Releasing progress-linux version 1.70.0+dfsg2-1~progress7.99u1. (diff) | |
| download | rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.tar.xz rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.zip | |
Merging upstream version 1.71.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/packed/packed-struct-borrow-element.stderr')
| -rw-r--r-- | tests/ui/packed/packed-struct-borrow-element.stderr | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tests/ui/packed/packed-struct-borrow-element.stderr b/tests/ui/packed/packed-struct-borrow-element.stderr index 29d867fc5..c1f749d6f 100644 --- a/tests/ui/packed/packed-struct-borrow-element.stderr +++ b/tests/ui/packed/packed-struct-borrow-element.stderr @@ -4,7 +4,8 @@ error[E0793]: reference to packed field is unaligned LL | let brw = &foo.baz; | ^^^^^^^^ | - = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) + = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses + = note: 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) error[E0793]: reference to packed field is unaligned @@ -13,7 +14,8 @@ error[E0793]: reference to packed field is unaligned LL | let brw = &foo.baz; | ^^^^^^^^ | - = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced) + = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses + = note: 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) error: aborting due to 2 previous errors |