[Octave-bug-tracker] [bug #62409] [octave forge] (image) BIST errors on 32-bit

[Markus Mützel]

URL:
  <https://savannah.gnu.org/bugs/?62409>

                 Summary: [octave forge] (image) BIST errors on 32-bit
                 Project: GNU Octave
            Submitted by: mmuetzel
            Submitted on: Wed 04 May 2022 09:51:45 AM CEST
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: other
         Discussion Lock: Any
        Operating System: Any

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Details:

Some built-in self tests of the image package are failing when executed in a
version of Octave where octave_idx_type is 32-bit.

See e.g.:
https://github.com/gnu-octave/octave-buildbot/runs/6277311915?check_suite_focus=true#step:13:4095

  >>>>> processing
D:\a\octave-buildbot\octave-buildbot\octave-2022-05-03-00-18-w32\mingw32\lib\octave\packages\image-2.14.0\i686-w64-mingw32-api-v57\imerode.cc-tst
  ***** test
   a = rand ([10 40 15 6 8 5]) > 0.2;
   se = ones ([5 3 7]);
  
   ## the image is not really indexed but this way it is padded with 1s
   assert (imerode (a, se), colfilt (a, "indexed", size (se), "sliding",
@all))
  
   assert (imerode (a, se, "valid"), convn (a, se, "valid") == nnz (se))
   ## again, we need to pad it ourselves because convn pads with zeros
   b = true (size (a) + [4 2 6 0 0 0]);
   b(3:12, 2:41, 4:18,:,:,:) = a;
   assert (imdilate (b, se, "same"), convn (b, se, "same") > 0)
   b = true (size (a) + [8 4 12 0 0 0]);
   b(5:14, 3:42, 7:21,:,:,:) = a;
   assert (imdilate (b, se, "full"), convn (b, se, "full") > 0)
  !!!!! test failed
  out of memory or dimension too large for Octave's index type
  ***** test
   a = rand ([10 40 15 6 8 5]) > 0.8;
   se = ones ([5 3 7]);
   assert (imdilate (a, se), convn (a, se, "same") > 0)
   assert (imdilate (a, se, "full"), convn (a, se, "full") > 0)
   assert (imdilate (a, se, "valid"), convn (a, se, "valid") > 0)
   assert (imdilate (a, se), colfilt (a, size (se), "sliding", @any))
  !!!!! test failed
  out of memory or dimension too large for Octave's index type


It might be nice to limit the size of the used matrices so that they could be
used with 32-bit indices. Or if that is not possible, skip these tests if
Octave's indices are 32-bit.






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