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Cppcheck v2.3 Release Notes

Release Date: 2020-12-05 // over 2 years ago

  • 👌 Improved C++ parser:

    • types
    • wrong operands in ast
    • 👍 better simplification of templates

    👌 Improved clang import, various fixes.
    👌 Improved value flow analysis

    🛠 Fixed false positives

    👌 Improved configuration in library files

    • boost.cfg
    • ✅ googletest.cfg
    • qt.cfg
    • 🏁 windows.cfg
    • wxwidgets.cfg

    ➕ Added several Misra rules:

    • 6.1
    • 6.2
    • 7.2
    • 7.4
    • 9.2
    • 10.2
    • 15.4

    ➕ Added platforms:

    • elbrus e1c+
    • pic
    • pic8
    • mips

Previous changes from v2.2

  • 🆕 New checks:

    • 🔒 incorrect usage of mutexes and lock guards
    • Dereference end iterator
    • Iterating a known empty container
    • outOfBounds check for iterators to containers

    ✂ Removed 'operator=' check that ensures reference to self is returned. That is not about safety.

    👌 Improved parser

    • 🛠 various ast fixes

    📜 Clang parser

    • The Clang import feature in Cppcheck should be considered to be experimental for now. There are problems.

    👌 Improved bug hunting

    • variable constraints
    • handling of multidimension arrays
    • function calls, execute functions that are in same TU
    • 👌 improved handling of containers
    • several improvements for uninitialized variables check
    • 👌 improved analysis of for loops
    • ➕ added a hash value for warnings that can be used for suppressions

    👌 Improved data flow

    • one more heuristic for ternary operators
    • 👌 improved data flow for containers

    CLI:

    • 🛠 Fixed some addon execution problems when there are spaces etc

    GUI:

    • 🛠 Fix handling of tags
    • Exclude files

    cppcheck-htmlreport:

    • several result files can be combined into 1 output

    Suppressions:

    • comments can be added at end of suppression in suppressions file