rust/tests/fail/intrinsics/copy_overflow.stderr

22 lines
1.1 KiB
Plaintext

error: Undefined Behavior: overflow computing total size of `copy`
--> RUSTLIB/core/src/intrinsics.rs:LL:CC
|
LL | copy(src, dst, count)
| ^^^^^^^^^^^^^^^^^^^^^ overflow computing total size of `copy`
|
= help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior
= help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information
= note: backtrace:
= note: inside `std::intrinsics::copy::<i32>` at RUSTLIB/core/src/intrinsics.rs:LL:CC
= note: inside `std::ptr::mut_ptr::<impl *mut i32>::copy_from` at RUSTLIB/core/src/ptr/mut_ptr.rs:LL:CC
note: inside `main` at $DIR/copy_overflow.rs:LL:CC
--> $DIR/copy_overflow.rs:LL:CC
|
LL | (&mut y as *mut i32).copy_from(&x, 1usize << (mem::size_of::<usize>() * 8 - 1));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace
error: aborting due to previous error