### Finish the Testat Exercise

Testat Exercise update (not obligatory)

But I figured some of the tests were to stringent.

Here are some updated tests:
https://github.com/PeterSommerlad/CPlusPlusLecture/tree/master/CppAdvanced/cpla_ws10/BoundedQueue/src

or

https:files/BoundedQueueTestsW12.zip

### Catch up with the other exercises from last weeks

unfortunately not many new exercises

### Extend Unit Library attempt from lecture

see also https://github.com/PeterSommerlad/CPlusPlusLecture/tree/master/CppAdvanced/cpla_ws12_values_empty_etc

- provide mix-ins for other comparisons and arithmetic operators
- Dec (--)
- Cmp (<,>,<=,>=)
- Add (+, +=)
- Sub (-, -=)
- Mul (*, *=)
- Div (/, /=, modulo % %= if is_integral_v<decltype(x.val)>)
- Arith (Add, Sub, Mul, Div)

- Can you think of more?
- Do you have ideas for conversions?

Define some useful simple units based on your attempts and write tests against them.