Remove unused files scan.h and scan.cc

See merge request !205

Run codespell during ci

See merge request !204

Found this because codespell (rightfully) complained
about the spelling.

It is not spelled correctly, and it is not used, either.

More modernization

See merge request !203

Remove more unused stuff

See merge request !202

It is not used anywhere else anymore.

It is not used.

That pointer is never used.

It was hard-wired to '0', anyway.

Because nowadays there are only sidevectors anyway, and hence
the dependence was purely formal.

The 'part' mechanism was a way to split grids into subdomains.
Dune has never used this, and for years, all grid entities and
vectors had part number 0.

This parts actually removes the corresponding code.

Remove the MIN and MAX macros

See merge request !201

Replace them with std::min, std::max, std::clamp.

use `UG_DIM_[23]` instead of `__TWODIM__` and `__THREEDIM__`

See merge request !200

Rip out the Format data structure and large parts of the UG3 algebra

See merge request !176

Oliver Sander authored 3 years ago and Ansgar Burchardt committed 2 years ago

For Dune they are always zero anyway.

Oliver Sander authored 3 years ago and Ansgar Burchardt committed 2 years ago

They are not needed for the grid itself.

Regression introduced in 5fffab22

Oliver Sander authored 3 years ago and Ansgar Burchardt committed 2 years ago

Dune does not need these Vector types.  They are part
of the UG3 linear algebra, which is not used by Dune.
An exception is the SIDEVEC type (values associated
to sides of 3d elements).  As the UG3 grid data structure
does not explicitly store sides of 3d elements, Dune
abuses SIDEVEC objects to store information about
these sides (level and leaf index, and ids).

Stop setting HAVE_UG

See merge request !199