[erlang-questions] repeatable dets:insert() error

[Hans Bolinder]

[Daniel Goertzen:]
> dets:insert() unexpectedly fails upon inserting the 2,097,176th
> element in a stress test program.

Thanks for reporting this bug.

Patches for R11B-5 and R12B-1 attached below.

Best regards,
Hans Bolinder, Erlang/OTP team



*** /usr/local/otp/releases/otp_beam_solaris8_r11b_patched/lib/stdlib-1.14.5.5/src/dets_v9.erl	Wed Jan 23 12:06:42 2008
--- dets_v9.erl	Thu Feb  7 13:21:06 2008
***************
*** 1911,1916 ****
--- 1911,1918 ----
      {Head, ok};
  grow(Head, Extra, undefined) ->
      grow(Head, Extra, seg_zero());
+ grow(Head, _Extra, _SegZero) when Head#head.next >= Head#head.max_no_slots ->
+     {Head, ok};
  grow(Head, Extra, SegZero) ->
      #head{n = N, next = Next, m = M} = Head,
      SegNum = Next div ?SEGSZP,    



*** /usr/local/otp/releases/otp_beam_solaris8_r12b_patched/lib/stdlib-1.15.1/src/dets_v9.erl	Wed Feb  6 09:28:51 2008
--- dets_v9.erl	Thu Feb  7 13:23:23 2008
***************
*** 1934,1939 ****
--- 1934,1941 ----
      {Head, ok};
  grow(Head, Extra, undefined) ->
      grow(Head, Extra, seg_zero());
+ grow(Head, _Extra, _SegZero) when Head#head.next >= Head#head.max_no_slots ->
+     {Head, ok};
  grow(Head, Extra, SegZero) ->
      #head{n = N, next = Next, m = M} = Head,
      SegNum = Next div ?SEGSZP,