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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
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  • Bug76
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  • Code Smell207

  • Quick Fix 19
Filtered: 15 rules found
misra-c++2008
    Impact
      Clean code attribute
        1. Pointer and reference parameters should be "const" if the corresponding object is not modified

           Code Smell
        2. "abort", "exit", "getenv" and "system" from <stdlib.h> should not be used

           Bug
        3. "offsetof" macro should not be used

           Code Smell
        4. There shall be at most one occurrence of the # or ## operators in a single macro definition

           Code Smell
        5. In the definition of a function-like macro, each instance of a parameter shall be enclosed in parentheses, unless it is used as the operand of # or ##

           Code Smell
        6. #include directives in a file should only be preceded by other preprocessor directives or comments

           Code Smell
        7. Functions should not be defined with a variable number of arguments

           Code Smell
        8. Evaluation of the operand to the sizeof operator shall not contain side effects

           Bug
        9. Switch statement conditions should not have essentially boolean type

           Code Smell
        10. Switch labels should not be nested inside non-switch blocks

           Code Smell
        11. A cast shall not remove any const or volatile qualification from the type of a pointer or reference

           Code Smell
        12. If a function has internal linkage then all re-declarations shall include the static storage class specifer

           Code Smell
        13. Functions should not be declared at block scope

           Code Smell
        14. Assembly language should be encapsulated and isolated

           Code Smell
        15. Control should not be transferred into a complex logic block using a "goto" or a "switch" statement

           Code Smell

        Switch labels should not be nested inside non-switch blocks

        intentionality - clear
        maintainability
        Code Smell
        • misra-c++2008
        • misra-c2004
        • confusing
        • misra-c2012

        Why is this an issue?

        More Info

        A switch-label can be placed anywhere within the statements that form the body of a switch statement, potentially leading to unstructured code. To prevent this from happening, the scope of a case-label or default-label shall be the statement forming the body of a switch statement. All case-clauses and the default-clause shall be at the same scope.

        Noncompliant code example

        switch (x) {
          case 1: // Compliant
            if (foo) {
              case 2: // Noncompliant
                break;
              default: // Noncompliant
                break;
            }
            break;
          default: // Compliant
            break;
        }
        
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          Available Since
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