Function dart_sys::Dart_GetNativeDoubleArgument

pub unsafe extern "C" fn Dart_GetNativeDoubleArgument(
    args: Dart_NativeArguments, 
    index: c_int, 
    value: *mut f64
) -> Dart_Handle

Gets a double native argument at some index. \param args Native arguments structure. \param arg_index Index of the desired argument in the structure above. \param value Returns the double value if the argument is a double. \return Success if no error occurs. Otherwise returns an error handle.