| warning: `extern` block uses type `TransparentCustomZst`, which is not FFI-safe | |
| --> $DIR/repr-transparent-issue-87496.rs:8:18 | |
| | | |
| LL | fn good17(p: TransparentCustomZst); | |
| | ^^^^^^^^^^^^^^^^^^^^ not FFI-safe | |
| | | |
| = note: this struct contains only zero-sized fields | |
| note: the type is defined here | |
| --> $DIR/repr-transparent-issue-87496.rs:6:1 | |
| | | |
| LL | struct TransparentCustomZst(()); | |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
| = note: `#[warn(improper_ctypes)]` on by default | |
| warning: 1 warning emitted | |