Express the arithmetic operators of [`Quantity`](https://github.com/vil02/CtUnits/blob/45b7ecf89ff224cfceff40fb92319d9068a5e91c/CtUnits/ctu/Quantity.hpp#L13) as _hidden friends_. Sonar reports: - [`operator+`](https://sonarcloud.io/project/issues?issueStatuses=OPEN%2CCONFIRMED&id=vil02_CtUnits&open=AZBLaHuPmYSuQSAzgIPX), - [`operator-`](https://sonarcloud.io/project/issues?issueStatuses=OPEN%2CCONFIRMED&id=vil02_CtUnits&open=AZBLaHuPmYSuQSAzgIPY), - [`operator*`](https://sonarcloud.io/project/issues?issueStatuses=OPEN%2CCONFIRMED&id=vil02_CtUnits&open=AZBLaHuPmYSuQSAzgIPZ), - [`operator/`](https://sonarcloud.io/project/issues?issueStatuses=OPEN%2CCONFIRMED&id=vil02_CtUnits&open=AZBLaHuPmYSuQSAzgIPa). In case you do not have access to sonar, you can do something a bit _hacky_ and use https://godbolt.org/z/rz9K3Kfhe.
Express the arithmetic operators of
Quantityas hidden friends.Sonar reports:
operator+,operator-,operator*,operator/.In case you do not have access to sonar, you can do something a bit hacky and use https://godbolt.org/z/rz9K3Kfhe.