* this commits adds tests that should fail, but don't
* Better use of std::enable_if
Replace the occurances of `class = std::enable_if_t<Cond>` and `typename = std::enable_if_t<Cond>` that have been identified in the previous commit with `std::enable_if_t<Cond, bool> = true`.
This commit is inspired by #1174, which changed one occurance in the owner header. This commit is aimed to fix all remaining occurances.
* fix failing checks
- core.cxx_gsl aktualisiert auf [](https://gitlab.avm.de/fos/repos/core.cxx_gsl/-/commit/)
- plc.access_lib aktualisiert auf [](https://gitlab.avm.de/fos/repos/plc.access_lib/-/commit/)
- plc.common aktualisiert auf [](https://gitlab.avm.de/fos/repos/plc.common/-/commit/)
- plc.daemon aktualisiert auf [](https://gitlab.avm.de/fos/repos/plc.daemon/-/commit/)
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Test Plan:
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Co-authored-by: Werner Henze <werner.henze+gitcommits@posteo.de>
Co-authored-by: Werner Henze <w.henze@avm.de>
* move span specialization of 'at' to <gsl/span> and update the parameter to be taken by reference
* undid previous changes and acted upon decisions made in maintainer sync. Fixed tests failing in /kernel mode
* ran clang-format on the include folder
* ran clang-format on the test folder
Co-authored-by: Jordan Maples <jordan.maples@microsoft.com>
