// error-pattern: calling a function with ABI C-unwind using caller ABI C #![feature(c_unwind)] //! Unwinding when the caller ABI is "C" (without "-unwind") is UB. //! Currently we detect the ABI mismatch; we could probably allow such calls in principle one day //! but then we have to detect the unexpected unwinding. //! FIXME: `-Zmiri-disable-abi-check` does not work for this test because function pointers are //! always allowed to unwind. extern "C-unwind" fn unwind() { panic!(); } fn main() { let unwind: extern "C-unwind" fn() = unwind; let unwind: extern "C" fn() = unsafe { std::mem::transmute(unwind) }; std::panic::catch_unwind(|| unwind()).unwrap_err(); }