Avoid using auto
as type of Eigen expressions.
#8577
Merged
+45
−45
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According to https://eigen.tuxfamily.org/dox/TopicPitfalls.html one should just avoid using
auto
as the type of an Eigen expression.This PR fixes most of them I could found in the project. There might be cases that I missed, and I might update those later if I noticed.
This should prevent issues like #7741 and hopefully fix some mysterious crashes happened inside Eigen calls.