Rule "Math operands should be cast before assignment" (squid:S2184) does not trigger

[nicola...@gmail.com]

I recently found a statement where the rule squid:S2184 should have triggered in my opinion, but hasn't:

double dt2 = (1 / 2) * dt * dt * sigma * sigma; // dt, sigma are double

It turned out that as soon as there is a double value in the statement, the rule is not triggered, i.e.

double a = 1 / 2 * 5.0;

The language is Java, btw.

[tibor.b...@sonarsource.com]

Hello,

seems you are right, there is a bug in the rule that such cases are not detected. I created the following ticket to handle it

https://jira.sonarsource.com/browse/SONARJAVA-2015

Thank you for reporting the issue.

Best regards

Tibor BLENESSY | SonarSource

Software Engineer

http://sonarsource.com