#[unsafe(no_mangle)]pub extern "C-unwind" fn miniextendr_panic_hook()Expand description
Register the miniextendr panic hook.
If MINIEXTENDR_BACKTRACE is set to true or 1, the default Rust
panic hook runs (full traceback printed to stderr); otherwise the hook
swallows the panic output silently so the R error (emitted by
panic_message_to_r_error) is what users see.
Idempotent within a DLL instance: the first call installs, subsequent
calls are no-ops. If the DLL is unloaded and loaded again, the new
instance has its own INSTALLED flag and installs afresh.