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|
error[E0080]: evaluation of constant value failed
--> $DIR/detect-extra-ub.rs:9:20
|
LL | let _x: bool = transmute(3u8);
| ^^^^^^^^^^^^^^ constructing invalid value: encountered 0x03, but expected a boolean
error: any use of this value will cause an error
--> $DIR/detect-extra-ub.rs:15:21
|
LL | const INVALID_PTR_IN_INT: () = unsafe {
| ----------------------------
LL | let _x: usize = transmute(&3u8);
| ^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes
|
= note: `#[deny(const_err)]` on by default
= 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 #71800 <https://github.com/rust-lang/rust/issues/71800>
= help: this code performed an operation that depends on the underlying bytes representing a pointer
= help: the absolute address of a pointer is not known at compile-time, so such operations are not supported
error: any use of this value will cause an error
--> $DIR/detect-extra-ub.rs:22:30
|
LL | const INVALID_SLICE_TO_USIZE_TRANSMUTE: () = unsafe {
| ------------------------------------------
LL | let x: &[u8] = &[0; 32];
LL | let _x: (usize, usize) = transmute(x);
| ^^^^^^^^^^^^ unable to turn pointer into raw bytes
|
= 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 #71800 <https://github.com/rust-lang/rust/issues/71800>
= help: this code performed an operation that depends on the underlying bytes representing a pointer
= help: the absolute address of a pointer is not known at compile-time, so such operations are not supported
error[E0080]: evaluation of constant value failed
--> $DIR/detect-extra-ub.rs:28:20
|
LL | let _x: &u32 = transmute(&[0u8; 4]);
| ^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 4 byte alignment but found 1)
error[E0080]: evaluation of constant value failed
--> $SRC_DIR/core/src/ptr/mod.rs:LL:COL
|
LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| |
| accessing memory with alignment 1, but alignment 4 is required
| inside `std::ptr::read::<u32>` at $SRC_DIR/core/src/ptr/mod.rs:LL:COL
|
::: $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
|
LL | unsafe { read(self) }
| ---------- inside `ptr::const_ptr::<impl *const u32>::read` at $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
|
::: $DIR/detect-extra-ub.rs:41:9
|
LL | ptr.read();
| ---------- inside `INNER` at $DIR/detect-extra-ub.rs:41:9
error: any use of this value will cause an error
--> $DIR/detect-extra-ub.rs:34:5
|
LL | const UNALIGNED_READ: () = {
| ------------------------
LL | INNER;
| ^^^^^ referenced constant has errors
|
= 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 #71800 <https://github.com/rust-lang/rust/issues/71800>
error: aborting due to 6 previous errors
For more information about this error, try `rustc --explain E0080`.
Future incompatibility report: Future breakage diagnostic:
error: any use of this value will cause an error
--> $DIR/detect-extra-ub.rs:15:21
|
LL | const INVALID_PTR_IN_INT: () = unsafe {
| ----------------------------
LL | let _x: usize = transmute(&3u8);
| ^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes
|
= note: `#[deny(const_err)]` on by default
= 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 #71800 <https://github.com/rust-lang/rust/issues/71800>
= help: this code performed an operation that depends on the underlying bytes representing a pointer
= help: the absolute address of a pointer is not known at compile-time, so such operations are not supported
Future breakage diagnostic:
error: any use of this value will cause an error
--> $DIR/detect-extra-ub.rs:22:30
|
LL | const INVALID_SLICE_TO_USIZE_TRANSMUTE: () = unsafe {
| ------------------------------------------
LL | let x: &[u8] = &[0; 32];
LL | let _x: (usize, usize) = transmute(x);
| ^^^^^^^^^^^^ unable to turn pointer into raw bytes
|
= note: `#[deny(const_err)]` on by default
= 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 #71800 <https://github.com/rust-lang/rust/issues/71800>
= help: this code performed an operation that depends on the underlying bytes representing a pointer
= help: the absolute address of a pointer is not known at compile-time, so such operations are not supported
Future breakage diagnostic:
error: any use of this value will cause an error
--> $DIR/detect-extra-ub.rs:34:5
|
LL | const UNALIGNED_READ: () = {
| ------------------------
LL | INNER;
| ^^^^^ referenced constant has errors
|
= note: `#[deny(const_err)]` on by default
= 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 #71800 <https://github.com/rust-lang/rust/issues/71800>
|
