- Follow the best practices of https://reuse.software/ to ensure BSD-3 licence is correctly applied.
- Add a badge to README.md
- Note: remove arm build as the CI pipeline is broken for this architecture
* Enable warning -Wuseless-cast for GCC build
* Add conditional_static_cast template to fix -Wuseless-cast warnings
Note 1: the original template code was created by
Thomas Braun (https://github.com/t-b) as an example in an issue discussion.
Note 2: the warnings are mostly reported on 32 bit (x86) builds. All CI Linux builds are x64 builds.
STL containers have the ::value_type typedef. Use this as simple SFINAE check to
ensure API methods that should be used with an STL like container are only available
if a container is passed.
This prevents ambiguous overload problems.
There are more advanced solutions: is_container in Boost, Concepts in C++20. but for the C++ API this solution meets its purpose (and is supported on older compilers).
