| warning: `extern` fn uses type `char`, which is not FFI-safe | |
| --> $DIR/naked-functions-ffi.rs:8:28 | |
| | | |
| LL | pub extern "C" fn naked(p: char) -> u128 { | |
| | ^^^^ not FFI-safe | |
| | | |
| = help: consider using `u32` or `libc::wchar_t` instead | |
| = note: the `char` type has no C equivalent | |
| = note: `#[warn(improper_ctypes_definitions)]` on by default | |
| warning: 1 warning emitted | |