I'm not sure where to put tests for this, assuming they're needed. They also wouldn't run in CI anyway since CI only exercises the C++17 codepaths.
See merge request libeigen/eigen!2053
There was only a single code path left in TensorEvaluator using pblend. We can replace that with a call to the more general TernarySelectOp and get rid of pblend entirely from Core.
Closes#2998
See merge request libeigen/eigen!2056
Co-authored-by: Rasmus Munk Larsen <rmlarsen@google.com>
<!--
Thanks for contributing a merge request!
We recommend that first-time contributors read our [contribution guidelines](https://eigen.tuxfamily.org/index.php?title=Contributing_to_Eigen).
Before submitting the MR, please complete the following checks:
- Create one PR per feature or bugfix,
- Run the test suite to verify your changes.
See our [test guidelines](https://eigen.tuxfamily.org/index.php?title=Tests).
- Add tests to cover the bug addressed or any new feature.
- Document new features. If it is a substantial change, add it to the [Changelog](https://gitlab.com/libeigen/eigen/-/blob/master/CHANGELOG.md).
- Leave the following box checked when submitting: `Allow commits from members who can merge to the target branch`.
This allows us to rebase and merge your change.
Note that we are a team of volunteers; we appreciate your patience during the review process.
-->
### Description
<!--Please explain your changes.-->
Eliminate use of std::cout in ArpackSelfAdjointEigenSolver.
Instead set the appropriate error status on failure.
### Reference issue
<!--
You can link to a specific issue using the gitlab syntax #<issue number>.
If the MR fixes an issue, write "Fixes #<issue number>" to have the issue automatically closed on merge.
-->
### Additional information
<!--Any additional information you think is important.-->
See merge request libeigen/eigen!2041
