| error[E0080]: evaluation of constant value failed |
| --> $DIR/const-compare-bytes-ub.rs:10:9 |
| | |
| 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:14:9 |
| | |
| 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:18:9 |
| | |
| 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:22:9 |
| | |
| 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 and there are only 3 bytes starting at that pointer |
| |
| error[E0080]: evaluation of constant value failed |
| --> $DIR/const-compare-bytes-ub.rs:26:9 |
| | |
| 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 and there are only 3 bytes starting at that pointer |
| |
| error[E0080]: evaluation of constant value failed |
| --> $DIR/const-compare-bytes-ub.rs:30:9 |
| | |
| 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:34:9 |
| | |
| 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:38:9 |
| | |
| 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`. |
