SonarSource Rules
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C

C static code analysis

Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your C code

  • All rules 315
  • Vulnerability13
  • Bug76
  • Security Hotspot19
  • Code Smell207

  • Quick Fix 19
 
Tags
    Impact
      Clean code attribute
        1. Pointer and reference parameters should be "const" if the corresponding object is not modified

           Code Smell
        2. Non-standard characters should not occur in header file names in "#include" directives

           Bug
        3. Functions should not be declared at block scope

           Code Smell
        4. Literal suffix "L" for long integers shall be upper case

           Code Smell
        5. Digraphs should not be used

           Code Smell
        6. The first element of an array should not be accessed implicitly

           Code Smell
        7. A single L in a literal suffix should only be used for long values

           Code Smell
        8. Loop variables should be declared in the minimal possible scope

           Code Smell
        9. Pointer and reference local variables should be "const" if the corresponding object is not modified

           Code Smell
        10. "sizeof" should not be called on pointers

           Bug
        11. Control characters should not be used in literals

           Code Smell
        12. Parameters should be passed in the correct order

           Code Smell
        13. Redundant casts should not be used

           Code Smell
        14. Multiple variables should not be declared on the same line

           Code Smell
        15. Unused local variables should be removed

           Code Smell
        16. Octal values should not be used

           Code Smell
        17. A "while" loop should be used instead of a "for" loop

           Code Smell
        18. Sections of code should not be commented out

           Code Smell
        19. Redundant pairs of parentheses should be removed

           Code Smell

        Sections of code should not be commented out

        intentionality - clear
        maintainability
        Code Smell
        Quick FixIDE quick fixes available with SonarLint
        • based-on-misra
        • unused

        Why is this an issue?

        More Info

        Commented-out code distracts the focus from the actual executed code. It creates a noise that increases maintenance code. And because it is never executed, it quickly becomes out of date and invalid.

        Commented-out code should be deleted and can be retrieved from source control history if required.

        Exceptions

        This rule does not apply to code documentation using Doxygen, QDoc, markdown, or HTML tags.

          Available In:
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          in your IDE
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          on-premise CI
          Developer Edition
          Available Since
          9.1

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