Created attachment 498 [details] Small example program showing the problem If all three "arguments" (matrix, rhs and output object) to partialPivLU are Maps, the output object is not written. I attached you a small example program showing the problem. It is slightly more complicated than a minimal example, but this is the exact situation I would like to work.
It works fine with the devel branch. I'll investigate what goes wrong with the 3.2 branch.
Partial fix: https://bitbucket.org/eigen/eigen/commits/ce8b4f787c0a/ Changeset: ce8b4f787c0a Branch: 3.2 User: ggael Date: 2014-10-10 14:42:32+00:00 Summary: Bug 890: extract_data might returns 0x0 thus breaking aliasing detection however, we still need a more robust mechanism to detect the input/output are same in both 3.2 and devel branch.
The following changesets should be good enough to close this entry. https://bitbucket.org/eigen/eigen/commits/15f5eb8cb365/ Summary: Add regression test for bug 890 https://bitbucket.org/eigen/eigen/commits/21847d0fd824/ Summary: Bug 890, add a more general routine to check that two dense object reference to the same data
-- GitLab Migration Automatic Message -- This bug has been migrated to gitlab.com's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.com/libeigen/eigen/issues/890.