Harden wide-integer via CodeSonar

[ckormanyos]

No description provided.

[ckormanyos]

OK.

• The analysis seems to be running on branches in PRs and when merging to master as expected.
• There is no coverage because the tool requires input from an independent coverage source and this has not (yet) been set up.
• The static analysis provides a wealth of useful information.
• Reviews and also assignment/wont-fix, etc. states can be set at the analysis results page.

[ckormanyos]

See also #161 regarding code coverage which might match well with CodeSonar's interface.

[ckormanyos]

This is turning out to be a great experience. Although sonar did not find any actual hard bugs or nuggets of that kind, the categories of Code Smells have revealed numerous opportunities for reduction of complexity, removal of redundancies, etc.

[ckormanyos]

At this point, the Code Smells have been walked back to the inception of the porject. From an initial count of about 600 issues, we are now down to about 300.

[ckormanyos]

Reduced so-called code smells to about 30. A few specific cases remain. These will be handled in separate individual issues.

Fixed by b8c742c