Update Travis CI to Bionic & Xcode 11.2

- Fix Homebrew Ruby errors by forcing brew update before install.
- Remove use of custom Eigen 3.3.4 on Linux in favour of default Bionic
  3.3.4 package.
- Update Android NDK version to R20b and build for arm64-v8.
- Fix erroneous string -> STRING in iOS toolchain file.

Change-Id: I041c2a08b92b8307c12bd8967159beb6984e3c65
4 files changed
tree: dea78be12a3cbe9111c64f2672b3789967fa7f39
  1. .clang-format
  2. .gitignore
  3. .travis.yml
  4. BUILD
  5. CMakeLists.txt
  6. CONTRIBUTING.md
  7. LICENSE
  8. README.md
  9. WORKSPACE
  10. bazel/
  11. cmake/
  12. config/
  13. data/
  14. docs/
  15. examples/
  16. include/
  17. internal/
  18. package.xml
  19. scripts/
  20. travis/
README.md

Build Status

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.