summaryrefslogtreecommitdiff
path: root/testsuite/tests/runtime-errors/stackoverflow.ml
blob: 7919f604f3d765a14b8473ed5a8aa4d1bf3a9139 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
(* TEST
 flags = "-w -a";
 ocamlrunparam += "l=100000";
*)

let rec f x =
  if not (x = 0 || x = 10000 || x = 20000)
  then 1 + f (x + 1)
  else
    try
      1 + f (x + 1)
    with Stack_overflow ->
      print_string "x = "; print_int x; print_newline();
      raise Stack_overflow

let _ =
 let p = Sys.opaque_identity (ref 42) in
 begin
  try
    ignore(f 0)
  with Stack_overflow ->
    print_string "Stack overflow caught"; print_newline()
 end ;
 for i = 1 to 1000 do ignore (Sys.opaque_identity (ref 1_000_000)) done;
 (* GPR#1289 *)
 Printexc.record_backtrace true;
 begin
  try
    ignore(f 0)
  with Stack_overflow ->
    print_string "second Stack overflow caught"; print_newline()
 end;
 print_string "!p = "; print_int !p; print_newline ()