Function gstuff::any_to_str

pub fn any_to_str<'a>(message: &'a dyn Any) -> Option<&'a str>

Useful with panic handlers.

For example:

if let Err (err) = catch_unwind (AssertUnwindSafe (move || {
  let mut core = tokio_core::reactor::Core::new().expect ("!core");
  loop {core.turn (None)}
})) {println! ("CORE panic! {:?}", any_to_str (&*err)); std::process::abort()}