This bugzilla service is closed. All entries have been migrated to https://gitlab.com/libeigen/eigen
Bug 344 - Diagonal lacks the data() method
Summary: Diagonal lacks the data() method
Status: NEW
Alias: None
Product: Eigen
Classification: Unclassified
Component: Core - general (show other bugs)
Version: 3.0
Hardware: All All
: --- minor
Assignee: Nobody
URL:
Whiteboard:
Keywords:
Depends on: 58
Blocks:
  Show dependency tree / graph
 
Reported: 2011-09-07 22:53 UTC by Frederic TERRAZZONI
Modified: 2019-12-04 11:06 UTC (History)
3 users (show)


Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Frederic TERRAZZONI 2011-09-07 22:53:56 UTC 
Short example :

MatrixXd mat(10,10);

double * a = mat.data(); // OK
double * b = mat.diagonal().data(); // The method data() does not exist
Comment 1 Christoph Hertzberg 2011-09-07 23:05:26 UTC 
If it is the diagonal of a direct access type, this should be solved directly by solving bug 58. (And for non direct access the data() function would not make sense.)
As a first workaround, one could Matrix<...>::diagonal() return a strided map.
Comment 2 Nobody 2019-12-04 11:06:34 UTC 
-- 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/344.
Note You need to log in before you can comment on or make changes to this bug.