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62 lines
2.7 KiB
Plaintext
62 lines
2.7 KiB
Plaintext
error: reference to packed field is unaligned
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--> $DIR/unaligned_references_external_macro.rs:5:1
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LL | / unaligned_references_external_crate::mac! {
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LL | |
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LL | | #[repr(packed)]
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LL | | pub struct X {
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LL | | pub field: u16
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LL | | }
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LL | | }
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| |_^
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= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
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= note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
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= note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
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= 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)
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note: the lint level is defined here
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--> $DIR/unaligned_references_external_macro.rs:5:1
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LL | / unaligned_references_external_crate::mac! {
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LL | |
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LL | | #[repr(packed)]
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LL | | pub struct X {
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LL | | pub field: u16
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LL | | }
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LL | | }
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| |_^
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= note: this error originates in the macro `unaligned_references_external_crate::mac` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: aborting due to previous error
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Future incompatibility report: Future breakage diagnostic:
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error: reference to packed field is unaligned
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--> $DIR/unaligned_references_external_macro.rs:5:1
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LL | / unaligned_references_external_crate::mac! {
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LL | |
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LL | | #[repr(packed)]
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LL | | pub struct X {
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LL | | pub field: u16
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LL | | }
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LL | | }
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| |_^
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= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
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= note: for more information, see issue #82523 <https://github.com/rust-lang/rust/issues/82523>
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= note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
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= 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)
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note: the lint level is defined here
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--> $DIR/unaligned_references_external_macro.rs:5:1
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LL | / unaligned_references_external_crate::mac! {
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LL | |
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LL | | #[repr(packed)]
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LL | | pub struct X {
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LL | | pub field: u16
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LL | | }
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LL | | }
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| |_^
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= note: this error originates in the macro `unaligned_references_external_crate::mac` (in Nightly builds, run with -Z macro-backtrace for more info)
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