00 00 00 00 │ ....
}
-error: any use of this value will cause an error
+error[E0080]: evaluation of constant value failed
--> $DIR/ub-ref-ptr.rs:31:1
|
LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^ 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
- = note: `#[deny(const_err)]` on by default
-error: any use of this value will cause an error
- --> $DIR/ub-ref-ptr.rs:35:39
+error[E0080]: evaluation of constant value failed
+ --> $DIR/ub-ref-ptr.rs:34:39
|
LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }];
- | ---------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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: any use of this value will cause an error
- --> $DIR/ub-ref-ptr.rs:35:38
+note: erroneous constant used
+ --> $DIR/ub-ref-ptr.rs:34:38
|
LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }];
- | ---------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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: any use of this value will cause an error
- --> $DIR/ub-ref-ptr.rs:41:86
+error[E0080]: evaluation of constant value failed
+ --> $DIR/ub-ref-ptr.rs:37:86
|
LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) };
- | ------------------------------------------ ^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes
+ | ^^^^^^^^^^^^^^^^^^^^ 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: any use of this value will cause an error
- --> $DIR/ub-ref-ptr.rs:41:85
+note: erroneous constant used
+ --> $DIR/ub-ref-ptr.rs:37:85
|
LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) };
- | ------------------------------------------ ^^^^^^^^^^^^^^^^^^^^^ 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[E0080]: it is undefined behavior to use this value
- --> $DIR/ub-ref-ptr.rs:47:1
+ --> $DIR/ub-ref-ptr.rs:40:1
|
LL | const USIZE_AS_REF: &'static u8 = unsafe { mem::transmute(1337usize) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (address 0x539 is unallocated)
}
error[E0080]: it is undefined behavior to use this value
- --> $DIR/ub-ref-ptr.rs:50:1
+ --> $DIR/ub-ref-ptr.rs:43:1
|
LL | const USIZE_AS_BOX: Box<u8> = unsafe { mem::transmute(1337usize) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling box (address 0x539 is unallocated)
}
error[E0080]: evaluation of constant value failed
- --> $DIR/ub-ref-ptr.rs:53:41
+ --> $DIR/ub-ref-ptr.rs:46:41
|
LL | const UNINIT_PTR: *const i32 = unsafe { MaybeUninit { uninit: () }.init };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
error[E0080]: it is undefined behavior to use this value
- --> $DIR/ub-ref-ptr.rs:57:1
+ --> $DIR/ub-ref-ptr.rs:50:1
|
LL | const NULL_FN_PTR: fn() = unsafe { mem::transmute(0usize) };
| ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered null pointer, but expected a function pointer
}
error[E0080]: evaluation of constant value failed
- --> $DIR/ub-ref-ptr.rs:59:38
+ --> $DIR/ub-ref-ptr.rs:52:38
|
LL | const UNINIT_FN_PTR: fn() = unsafe { MaybeUninit { uninit: () }.init };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory
error[E0080]: it is undefined behavior to use this value
- --> $DIR/ub-ref-ptr.rs:62:1
+ --> $DIR/ub-ref-ptr.rs:55:1
|
LL | const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0xd[noalloc], but expected a function pointer
}
error[E0080]: it is undefined behavior to use this value
- --> $DIR/ub-ref-ptr.rs:64:1
+ --> $DIR/ub-ref-ptr.rs:57:1
|
LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) };
| ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered alloc41, but expected a function pointer
╾─alloc41─╼ │ ╾──╼
}
-error: aborting due to 16 previous errors
+error: aborting due to 14 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/ub-ref-ptr.rs:31:1
- |
-LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) };
- | ^^^^^^^^^^^^^^^^^^^^^^^^^ 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
- = note: `#[deny(const_err)]` on by default
-
-Future breakage diagnostic:
-error: any use of this value will cause an error
- --> $DIR/ub-ref-ptr.rs:35:39
- |
-LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }];
- | ---------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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
- = note: `#[deny(const_err)]` on by default
-
-Future breakage diagnostic:
-error: any use of this value will cause an error
- --> $DIR/ub-ref-ptr.rs:35:38
- |
-LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }];
- | ---------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 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>
- = note: `#[deny(const_err)]` on by default
-
-Future breakage diagnostic:
-error: any use of this value will cause an error
- --> $DIR/ub-ref-ptr.rs:41:86
- |
-LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) };
- | ------------------------------------------ ^^^^^^^^^^^^^^^^^^^^ 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
- = note: `#[deny(const_err)]` on by default
-
-Future breakage diagnostic:
-error: any use of this value will cause an error
- --> $DIR/ub-ref-ptr.rs:41:85
- |
-LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) };
- | ------------------------------------------ ^^^^^^^^^^^^^^^^^^^^^ 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>
- = note: `#[deny(const_err)]` on by default
-
projects / rust.git / blobdiff