Unify Block handling across matrix types

Previously some matrices used Block to keep track of
row/column block sizes and some would just use ints, and
then compute the position of each row and column from it.

By uniformly using Block everywhere, we reduce duplicate
computation and data copies.

I also cleaned up a bunch of c++17 related stuff as I edited
these files.

Change-Id: I4c86b1593fd4c91f9057fbb38314f62f303e0477
32 files changed
tree: b1f83d8261209eba69822d89c767b41ff8ffdb61
  1. .github/
  2. bazel/
  3. cmake/
  4. config/
  5. data/
  6. docs/
  7. examples/
  8. include/
  9. internal/
  10. scripts/
  11. .clang-format
  12. .gitignore
  13. BUILD
  14. CITATION.cff
  15. CMakeLists.txt
  18. package.xml
  19. README.md

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Ceres Solver

Ceres Solver is an open source C++ library for modeling and solving large, complicated optimization problems. It is a feature rich, mature and performant library which has been used in production at Google since 2010. Ceres Solver can solve two kinds of problems.

  1. Non-linear Least Squares problems with bounds constraints.
  2. General unconstrained optimization problems.

Please see ceres-solver.org for more information.