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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: 9 rules found
obsolete
    Impact
      Clean code attribute
        1. Digraphs should not be used

           Code Smell
        2. Trigraphs should not be used

           Code Smell
        3. GNU extensions should not be used

           Code Smell
        4. Increment should not be used to set boolean variables to 'true'

           Code Smell
        5. Obsolete POSIX functions should not be used

           Code Smell
        6. Code annotated as deprecated should not be used

           Code Smell
        7. Deprecated K&R syntax should not be used for function definition

           Code Smell
        8. Deprecated code should be removed

           Code Smell
        9. Deprecated attributes should include explanations

           Code Smell

        Deprecated K&R syntax should not be used for function definition

        consistency - conventional
        maintainability
        Code Smell
        • obsolete
        • confusing

        Why is this an issue?

        In 1978, Brian Kernighan and Dennis Ritchie published the first edition of The C Programming Language. This book, known to C programmers as "K&R", served for many years as an informal specification of the language. The version of C that it describes is commonly referred to as K&R C.

        The K&R function definition syntax introduced in the book was later deprecated in the ANSI C and ISO C standards. Even though the K&R syntax is still supported in the ISO C11 standard, it’s not in ISO C++ standard versions and is not considered readable by most C/C++ developers today.

        Noncompliant code example

        int foo(a, b)   // Noncompliant K&R C syntax
          int a;
          char* b;
        {
        }
        

        Compliant solution

        int foo(int a, char* b) { // Compliant
        }
        
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          Developer Edition
          Available Since
          9.1

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