codeql/change-notes/1.22/analysis-cpp.md

Improvements to C/C++ analysis

General improvements

New queries

Query	Tags	Purpose

Changes to existing queries

Query	Expected impact	Change
Suspicious pointer scaling (cpp/suspicious-pointer-scaling)	Lower precision	The precision of this query has been reduced to "medium". This coding pattern is used intentionally and safely in a number of real-world projects. Results are no longer displayed on LGTM unless you choose to display them.

Changes to QL libraries

• The predicate Variable.getAnAssignedValue() now reports assignments to fields resulting from aggregate initialization ( = {...}).
• The predicate TypeMention.toString() has been simplified to always return the string "type mention". This may improve performance when using Element.toString() or its descendants.
• Fixed the LocalScopeVariableReachability.qll library's handling of loops with an entry condition is both always true upon first entry, and where there is more than one control flow path through the loop condition. This change increases the accuracy of the LocalScopeVariableReachability.qll library and queries which depend on it.