Function get_last_error

arrow-array/src/ffi_stream.rs:143–151

The callback used to get the error from last operation on the `FFI_ArrowArrayStream`

(stream: *mut FFI_ArrowArrayStream)

// The callback used to get the error from last operation on the `FFI_ArrowArrayStream`
unsafe extern "C" fn get_last_error(stream: *mut FFI_ArrowArrayStream) -> *const c_char {
    let mut ffi_stream = ExportedArrayStream { stream };
    // The consumer should not take ownership of this string, we should return
    // a const pointer to it.
    match ffi_stream.get_last_error() {
        Some(err_string) => err_string.as_ptr(),
        None => std::ptr::null(),
    }
}

impl Drop for FFI_ArrowArrayStream {
    fn drop(&mut self) {