We are happy to announce the release of Cppcheck Open-Source 2.12!
Cppcheck introduces new checks such as uselessOverride for redundant overriding functions and knownPointerToBool for unnecessary pointer-to-bool conversions. Enhancements include expanded type checking for truncLongCastAssignment and truncLongCastReturn, and more robust detection of const correctness in constParameter* and constVariable* checks. GUI improvements highlight activated checkers and critical errors post-analysis, with a new interface feature to report activated checkers via --checkers-report. Deprecations include the qmake build system and specific command-line options. Other changes enforce the use of Qt6 without fallback to Qt5, handle addon execution failures as internalError, and remove "Win32" configurations from Visual Studio projects.
Release notes:
- New checks:
- uselessOverride finds overriding functions that either duplicate code from or delegate back to the base class implementation
- knownPointerToBool finds pointer to bool conversions that are always true or false
- Improved checking:
- truncLongCastAssignment and truncLongCastReturn check additional types, including float/double/long double
- duplInheritedMember also reports duplicated member functions
- constParameter*/constVariable* checks find more instances of pointers/references that can be const, e.g. when calling library functions
- GUI:
- Show in statistics which checkers have been activated in latest analysis
- Make it more visible if there has been critical errors that caused checkers to be skipped
- Changed interface:
- Write how many checkers was activated after a run
- Added --checkers-report that can be used to generate a report in a file that shows what checkers was activated and disabled
- Deprecations:
- The qmake build system has been deprecated and will be removed in a future version.
- Command-line option '--template ' is deprecated and will be removed in 2.13 - please use '--template=' instead.
- Command-line option '--template-location ' is deprecated and will be removed in 2.13 - please use '--template-location=' instead.
Other:
- "USE_QT6=On" will no longer fallback to Qt5 when Qt6 is not found.
- When the execution of an addon fails with an exitcode it will now result in an 'internalError' instead of being silently ignored.
- "Win32" configurations have been removed from the bundled Visual Studio solution and projects. You might still be able to build 32-bit binaries using CMake but that is untested and unmaintained.