File: backtrace_threads.ml

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ocaml 5.3.0-3
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(* TEST
 include systhreads;
 hassysthreads;
 {
   bytecode;
 }{
   native;
 }
*)

let () = Printexc.record_backtrace true

let () =
   let bt =
     try
       let h = (Hashtbl.create 1 : (int, unit) Hashtbl.t) in
       Hashtbl.find h 1;
       assert false
     with Not_found ->
       Printexc.get_raw_backtrace ()
   in
   let t = Thread.create (fun () ->
       try
         Printexc.raise_with_backtrace Not_found bt
       with Not_found -> ()
     ) () in
   Thread.join t;
   flush stdout