ocaml/testsuite/tests/backtrace/backtrace.ml

22 lines
422 B
OCaml

(* TEST
flags = "-g"
ocamlrunparam += ",b=1"
*)
(* A test for stack backtraces *)
exception Error of string
let rec f msg n =
if n = 0 then raise(Error msg) else 1 + f msg (n-1)
let g msg =
try
f msg 5
with Error "a" -> print_string "a"; print_newline(); 0
| Error "b" as exn -> print_string "b"; print_newline(); raise exn
| Error "c" -> raise (Error "c")
let _ =
ignore (g Sys.argv.(1))