ops: add expression support to eigen matrix-matrix product

Pressio / pressio

core C++ library

Other

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ops: add expression support to eigen matrix-matrix product #528

Closed mzuzek closed 6 months ago

mzuzek commented 1 year ago

Eigen overloads of level3 ::pressio::ops::product() accept native containers and as_diag_matrix expression for A input. Add support for subspan expression and allow expressions for B input. Expand unit tests accordingly to cover new expression cases (and refactor if needed).

refs #526

fnrizzi commented 6 months ago

closing for now while cleaning up, not high priority