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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
Filtered: 10 rules found
cppcoreguidelines
    Impact
      Clean code attribute
        1. Function-like macros should not be used

           Code Smell
        2. Boolean operations should not have numeric operands, and vice versa

           Bug
        3. A cast shall not remove any const or volatile qualification from the type of a pointer or reference

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

           Code Smell
        5. Relational and subtraction operators should not be used with pointers to different arrays

           Bug
        6. Arguments evaluation order should not be relied on

           Bug
        7. User-defined types should not be passed as variadic arguments

           Bug
        8. Local variables and member data should not be volatile

           Code Smell
        9. Types and variables should be declared in separate statements

           Code Smell
        10. Type specifiers should be listed in a standard order

           Code Smell

        Type specifiers should be listed in a standard order

        consistency - conventional
        maintainability
        Code Smell
        • cppcoreguidelines

        Why is this an issue?

        More Info

        Shared coding conventions allow teams to collaborate efficiently. This rule checks that type specifiers always appear in the following order:

        1. typedef
        2. type name, spelling of built-in types with more than one type-specifier:
          1. signedness - signed or unsigned
          2. last single type-specifier or
            • short int
            • long int
            • long long int
            • long double

        Since the positioning of the const keyword is controversial, this rule does not check it.

        Noncompliant code example

        int typedef T;
        
        double long d;
        char unsigned ch;
        long signed int i;
        

        Compliant solution

        typedef int T;
        
        long double d;
        unsigned char ch;
        signed long int i;
        
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