rust/tests/ui/consts/const-compare-bytes-ub.stderr

error[E0080]: evaluation of constant value failed
  --> $DIR/const-compare-bytes-ub.rs:9:9
   |
LL |         compare_bytes(0 as *const u8, 2 as *const u8, 1)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 1 byte of memory, but got a null pointer

error[E0080]: evaluation of constant value failed
  --> $DIR/const-compare-bytes-ub.rs:13:9
   |
LL |         compare_bytes(1 as *const u8, 0 as *const u8, 1)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 1 byte of memory, but got 0x1[noalloc] which is a dangling pointer (it has no provenance)

error[E0080]: evaluation of constant value failed
  --> $DIR/const-compare-bytes-ub.rs:17:9
   |
LL |         compare_bytes(1 as *const u8, 2 as *const u8, 1)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 1 byte of memory, but got 0x1[noalloc] which is a dangling pointer (it has no provenance)

error[E0080]: evaluation of constant value failed
  --> $DIR/const-compare-bytes-ub.rs:21:9
   |
LL |         compare_bytes([1, 2, 3].as_ptr(), [1, 2, 3, 4].as_ptr(), 4)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 4 bytes of memory, but got ALLOC0 which is only 3 bytes from the end of the allocation

error[E0080]: evaluation of constant value failed
  --> $DIR/const-compare-bytes-ub.rs:25:9
   |
LL |         compare_bytes([1, 2, 3, 4].as_ptr(), [1, 2, 3].as_ptr(), 4)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 4 bytes of memory, but got ALLOC1 which is only 3 bytes from the end of the allocation

error[E0080]: evaluation of constant value failed
  --> $DIR/const-compare-bytes-ub.rs:29:9
   |
LL |         compare_bytes(MaybeUninit::uninit().as_ptr(), [1].as_ptr(), 1)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ reading memory at ALLOC2[0x0..0x1], but memory is uninitialized at [0x0..0x1], and this operation requires initialized memory

error[E0080]: evaluation of constant value failed
  --> $DIR/const-compare-bytes-ub.rs:33:9
   |
LL |         compare_bytes([1].as_ptr(), MaybeUninit::uninit().as_ptr(), 1)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ reading memory at ALLOC3[0x0..0x1], but memory is uninitialized at [0x0..0x1], and this operation requires initialized memory

error[E0080]: evaluation of constant value failed
  --> $DIR/const-compare-bytes-ub.rs:37:9
   |
LL |         compare_bytes([&1].as_ptr().cast(), [&2].as_ptr().cast(), std::mem::size_of::<usize>())
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into integer
   |
   = 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: aborting due to 8 previous errors

For more information about this error, try `rustc --explain E0080`.
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`error[E0080]: evaluation of constant value failed`
most const intrinsics don't need an explicit rustc_const_unstable any more 2024-11-02 02:25:30 -05:00			`--> $DIR/const-compare-bytes-ub.rs:9:9`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`\|`
offset, offset_from: allow zero-byte offset on arbitrary pointers 2024-05-09 05:35:11 -05:00			`LL \| compare_bytes(0 as const u8, 2 as const u8, 1)`
improve dangling/oob errors and make them more uniform 2024-07-27 11:09:50 -05:00			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 1 byte of memory, but got a null pointer`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00
			`error[E0080]: evaluation of constant value failed`
most const intrinsics don't need an explicit rustc_const_unstable any more 2024-11-02 02:25:30 -05:00			`--> $DIR/const-compare-bytes-ub.rs:13:9`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`\|`
offset, offset_from: allow zero-byte offset on arbitrary pointers 2024-05-09 05:35:11 -05:00			`LL \| compare_bytes(1 as const u8, 0 as const u8, 1)`
improve dangling/oob errors and make them more uniform 2024-07-27 11:09:50 -05:00			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 1 byte of memory, but got 0x1[noalloc] which is a dangling pointer (it has no provenance)`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00
			`error[E0080]: evaluation of constant value failed`
most const intrinsics don't need an explicit rustc_const_unstable any more 2024-11-02 02:25:30 -05:00			`--> $DIR/const-compare-bytes-ub.rs:17:9`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`\|`
			`LL \| compare_bytes(1 as const u8, 2 as const u8, 1)`
improve dangling/oob errors and make them more uniform 2024-07-27 11:09:50 -05:00			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 1 byte of memory, but got 0x1[noalloc] which is a dangling pointer (it has no provenance)`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00
			`error[E0080]: evaluation of constant value failed`
most const intrinsics don't need an explicit rustc_const_unstable any more 2024-11-02 02:25:30 -05:00			`--> $DIR/const-compare-bytes-ub.rs:21:9`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`\|`
			`LL \| compare_bytes([1, 2, 3].as_ptr(), [1, 2, 3, 4].as_ptr(), 4)`
on a signed deref check, mention the right pointer in the error 2024-07-29 09:40:21 -05:00			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 4 bytes of memory, but got ALLOC0 which is only 3 bytes from the end of the allocation`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00
			`error[E0080]: evaluation of constant value failed`
most const intrinsics don't need an explicit rustc_const_unstable any more 2024-11-02 02:25:30 -05:00			`--> $DIR/const-compare-bytes-ub.rs:25:9`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`\|`
			`LL \| compare_bytes([1, 2, 3, 4].as_ptr(), [1, 2, 3].as_ptr(), 4)`
on a signed deref check, mention the right pointer in the error 2024-07-29 09:40:21 -05:00			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: expected a pointer to 4 bytes of memory, but got ALLOC1 which is only 3 bytes from the end of the allocation`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00
			`error[E0080]: evaluation of constant value failed`
most const intrinsics don't need an explicit rustc_const_unstable any more 2024-11-02 02:25:30 -05:00			`--> $DIR/const-compare-bytes-ub.rs:29:9`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`\|`
			`LL \| compare_bytes(MaybeUninit::uninit().as_ptr(), [1].as_ptr(), 1)`
Normalize alloc-id in tests. 2023-10-15 12:00:11 -05:00			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ reading memory at ALLOC2[0x0..0x1], but memory is uninitialized at [0x0..0x1], and this operation requires initialized memory`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00
			`error[E0080]: evaluation of constant value failed`
most const intrinsics don't need an explicit rustc_const_unstable any more 2024-11-02 02:25:30 -05:00			`--> $DIR/const-compare-bytes-ub.rs:33:9`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`\|`
			`LL \| compare_bytes([1].as_ptr(), MaybeUninit::uninit().as_ptr(), 1)`
Normalize alloc-id in tests. 2023-10-15 12:00:11 -05:00			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ reading memory at ALLOC3[0x0..0x1], but memory is uninitialized at [0x0..0x1], and this operation requires initialized memory`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00
			`error[E0080]: evaluation of constant value failed`
most const intrinsics don't need an explicit rustc_const_unstable any more 2024-11-02 02:25:30 -05:00			`--> $DIR/const-compare-bytes-ub.rs:37:9`
Add a new `compare_bytes` intrinsic instead of calling `memcmp` directly 2023-08-02 14:45:52 -05:00			`\|`
			`LL \| compare_bytes([&1].as_ptr().cast(), [&2].as_ptr().cast(), std::mem::size_of::<usize>())`
			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into integer`
			`\|`
			`= 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: aborting due to 8 previous errors`

			For more information about this error, try `rustc --explain E0080`.