//@ build-pass //@ needs-unwind #![warn(ffi_unwind_calls)] mod foo { #[no_mangle] pub extern "C-unwind" fn foo() {} } extern "C-unwind" { fn foo(); } fn main() { // Call to Rust function is fine. foo::foo(); // Call to foreign function should warn. unsafe { foo(); } //~^ WARNING call to foreign function with FFI-unwind ABI let ptr: extern "C-unwind" fn() = foo::foo; // Call to function pointer should also warn. ptr(); //~^ WARNING call to function pointer with FFI-unwind ABI }