MISRA C:2004 checker reference - certified

These checkers detect violations of the MISRA C:2004 standard.


  • To view this information organized by rule number, see MISRA C:2004 rules mapped to Klocwork certified checkers.
  • We provide full help for each MISRA C and MISRA C++ checker. Because this information is licensed, it is available as a part of your Klocwork installation, rather than online.
Checker name Description Rule Version
FUNCRET.GEN Non-void function does not return value 16.8 Pre-2020.1
FUNCRET.IMPLICIT Non-void function implicitly returning int does not return value 16.8 Pre-2020.1
INVARIANT_CONDITION.GEN Invariant expression in a condition 13.7 2020.1
INVARIANT_CONDITION.UNREACH Invariant expression in a condition 13.7 Pre-2020.1
LOCRET.ARG Function returns address of local variable 17.6 Pre-2020.1
LOCRET.GLOB Function returns address of local variable 17.6 Pre-2020.1
LOCRET.RET Function returns address of local variable 17.6 Pre-2020.1
MISRA.ASM.ENCAPS Assembly language is not isolated. 2.1 Pre-2020.1
MISRA.ASSIGN.COND Assignment operator is used in a condition 13.1 Pre-2020.1
MISRA.ASSIGN.OVERLAP Object is assigned to an overlapping object 18.2 2022.3
MISRA.BITFIELD.SIGNED Length of a named signed bit-field is less than 2 6.5 Pre-2020.1
MISRA.BITFIELD.SIGNED.UNNAMED Length of an unnamed signed bit-field is less than 2 6.5 Pre-2020.1
MISRA.BITFIELD.TYPE Type of bit-field is not signed/unsigned integer 6.4 Pre-2020.1
MISRA.BITS.NOT_UNSIGNED Operand of bitwise operation is not unsigned integer 12.7 Pre-2020.1
MISRA.BITS.NOT_UNSIGNED.PREP Operand of bitwise operation is not unsigned integer 12.7 Pre-2020.1
MISRA.BUILTIN_NUMERIC Builtin numeric type is used 6.3 Pre-2020.1
MISRA.CAST.CONST Cast operation removes const or volatile modifier from a pointer or reference 11.5 Pre-2020.1
MISRA.CAST.FLOAT Non-trivial float expression is cast to a wider type 10.4 Pre-2020.1
MISRA.CAST.FUNC_PTR Cast between a function pointer and a non-integral type 11.1 Pre-2020.1
MISRA.CAST.INT Non-trivial integer expression is cast to a wider type, or type with a different signedness 10.3 Pre-2020.1
MISRA.CAST.PTR Cast between a pointer to object type and a different pointer to object type 11.4 Pre-2020.1
MISRA.CAST.PTR.UNRELATED Object of pointer type cast to unrelated type 11.2 Pre-2020.1
MISRA.CAST.PTR_TO_INT Cast between a pointer and an integral type 11.3 Pre-2020.1
MISRA.CAST.UNSIGNED_BITS The result of bitwise operation on unsigned char or short is not cast back to original type 10.5 Pre-2020.1
MISRA.CHAR.NOT_CHARACTER 'char' is used for non-character value 6.1 Pre-2020.1
MISRA.CHAR.TRIGRAPH Trigraph usage 4.2 Pre-2020.1
MISRA.COMMA Comma operator is used 12.10 Pre-2020.1
MISRA.COMP.WRAPAROUND Wrap-around in a condition 12.11 2020.3
MISRA.CONTINUE Continue statement is used 14.5 Pre-2020.1
MISRA.CT.UNIQUE.ID Identifier clashes with tag name 5.4 2021.2
MISRA.CVALUE.IMPL.CAST The value of an expression implicitly converted to a different type 10.1 10.2 2020.3
MISRA.DECL.ARRAY_SIZE Declaration of array with unknown size 8.12 Pre-2020.1
MISRA.DECL.FUNC_LOCAL Function is declared locally 8.6 Pre-2020.1
MISRA.DECL.NO_TYPE Declaration without a type 8.2 Pre-2020.1
MISRA.DEFINE.BADEXP Inappropriate macro expansion 19.4 2020.4
MISRA.DEFINE.FUNC Function-like macro definition 19.7 Pre-2020.1
MISRA.DEFINE.LONGNAME Macro name is too long 5.1 Pre-2020.1
MISRA.DEFINE.NOPARS Macro parameter with no parentheses 19.10 2020.4
MISRA.DEFINE.NOTGLOBAL Define not at the global level 19.5 Pre-2020.1
MISRA.DEFINE.SHARP # or ## operator in a macro definition 19.13 Pre-2020.1
MISRA.DEFINE.SHARP.MANY Several # or ## operators in a macro definition 19.12 Pre-2020.1
MISRA.DEFINE.WRONGNAME Usage of a name from the standard library for naming a macro 20.1 Pre-2020.1
MISRA.DEFINE.WRONGNAME.UNDERSCORE Usage of a reserved name for naming a macro 20.1 Pre-2020.1
MISRA.ELIF.DEFINED Incorrect 'defined' usage in #elif directive 19.14 Pre-2020.1
MISRA.ELIF.OTHERFILE #elif in an improper file 19.17 Pre-2020.1
MISRA.ELIF.UNDEF Undefined macros in #elif directive 19.11 Pre-2020.1
MISRA.ELIF.WRAPAROUND Wrap-around in #elif directive 12.11 Pre-2020.1
MISRA.ELSE.OTHERFILE #else in an improper file 19.17 Pre-2020.1
MISRA.ENDIF.OTHERFILE #endif in an improper file 19.17 Pre-2020.1
MISRA.ENUM.INIT Non-first enumerator is explicitly initialized, but not all elements are explicitly initialized. 9.3 Pre-2020.1
MISRA.EXPANSION.DIRECTIVE Directive-like tokens within a macro argument 19.9 Pre-2020.1
MISRA.EXPANSION.NARGS Missing macro argument 19.8 Pre-2020.1
MISRA.EXPANSION.UNSAFE Unsafe macro usage 20.1 20.5 20.6 20.7 20.8 Pre-2020.1
MISRA.EXPR.PARENS.INSUFFICIENT Limited dependence required for operator precedence rules in expressions 12.1 Pre-2020.1
MISRA.EXPR.PARENS.REDUNDANT Limited dependence required for operator precedence rules in expressions 12.1 2021.1
MISRA.FLOAT.BIT.REPR Use of bit manipulations of floating-point values which rely on storage layout 12.12 Pre-2020.1
MISRA.FLOAT_EQUAL Floating point expression is tested for equality 13.3 2020.2
MISRA.FOR.COND For loop condition does not depend on loop counter 13.5 Pre-2020.1
MISRA.FOR.COND.FLT Floating point object is used in the condition section of a 'for' loop 13.4 Pre-2020.1
MISRA.FOR.INCR.CHANGE For loop increment expression does not change loop counter 13.5 Pre-2020.1
MISRA.FOR.STMT.CHANGE For loop counter is modified within the loop statement 13.6 Pre-2020.1
MISRA.FUNC.ADDR Address of a function is used without & operator 16.9 Pre-2020.1
MISRA.FUNC.NOPROT.CALL Function is called but has no prototype 8.1 2021.1
MISRA.FUNC.NOPROT.DEF Function has a definition but no prototype 8.1 Pre-2020.1
MISRA.FUNC.NO_PARAMS Function without parameters is missing void parameter type 16.5 Pre-2020.1
MISRA.FUNC.PARAMS.IDENT Identifiers used in declaration and definition of function are not identical 16.4 Pre-2020.1
MISRA.FUNC.RECUR Recursive function 16.2 Pre-2020.1
MISRA.FUNC.STATIC.REDECL Function or object redeclaration does not include 'static' modifier 8.11 Pre-2020.1
MISRA.FUNC.UNMATCHED.PARAMS Number of formal and actual parameters passed to function do not match 16.6 Pre-2020.1
MISRA.FUNC.UNNAMED.PARAMS Function declaration has unnamed parameters 16.3 Pre-2020.1
MISRA.FUNC.VARARG Function with variable number of arguments 16.1 Pre-2020.1
MISRA.GOTO Goto statement is used 14.4 Pre-2020.1
MISRA.IDENT.LONG Identifier is longer than 31 characters 5.1 Pre-2020.1
MISRA.IF.DEFINED Incorrect 'defined' usage in #if directive 19.14 Pre-2020.1
MISRA.IF.NO_COMPOUND The body of if/else statement is not a compound statement 14.9 Pre-2020.1
MISRA.IF.NO_ELSE A chain of if/else-if statements is not terminated with else or is terminated with an empty else clause 14.10 Pre-2020.1
MISRA.IF.UNDEF Undefined macros in #if directive 19.11 Pre-2020.1
MISRA.IF.WRAPAROUND Wrap-around in #if directive 12.11 Pre-2020.1
MISRA.INCGUARD Include guard is not provided 19.15 Pre-2020.1
MISRA.INCL.BAD Non-standard include directive 19.3 2020.4
MISRA.INCL.INSIDE Include directive preceded by a preprocessor output token 19.1 Pre-2020.1
MISRA.INCL.SYMS Non-standard characters in header file names 19.2 Pre-2020.1
MISRA.INCL.UNSAFE Unsafe header inclusion 20.1 20.12 20.8 20.9 2022.2
MISRA.INCOMPLETE.STRUCT Incomplete struct type is used 18.1 Pre-2020.1
MISRA.INCOMPLETE.STRUCT.UNNAMED Incomplete unnamed struct type is used 18.1 Pre-2020.1
MISRA.INCOMPLETE.UNION Incomplete union type is used 18.1 Pre-2020.1
MISRA.INCOMPLETE.UNION.UNNAMED Incomplete unnamed union type is used 18.1 Pre-2020.1
MISRA.INCR_DECR.OTHER Increment or decrement operator is mixed with other operators in expression 12.13 Pre-2020.1
MISRA.INIT.BRACES Incorrect initializer braces placement. 9.2 Pre-2020.1
MISRA.ITER.ONETERM Iteration statement has more than one break or goto for loop termination. 14.6 Pre-2020.1
MISRA.LITERAL.UNSIGNED.SUFFIX Unsigned integer literal without 'U' suffix 10.6 Pre-2020.1
MISRA.LOGIC.OPERAND.NOT_BOOL Operand of logical operator is not effectively boolean 12.6 Pre-2020.1
MISRA.LOGIC.OPERATOR.NOT_BOOL Operand of non-logical operator is effectively boolean 12.6 2021.2
MISRA.LOGIC.PRIMARY Operand in a logical 'and' or 'or' expression is not a primary expression 12.5 Pre-2020.1
MISRA.LOGIC.SIDEEFF Right operand in a logical 'and' or 'or' expression contains side effects 12.4 Pre-2020.1
MISRA.LOGIC.SIDEEFF.COND Branch expression in a conditional expression contains side effects 12.4 Pre-2020.1
MISRA.NULL.STMT Null statement is not the only statement on line or comments are placed incorrectly 14.3 Pre-2020.1
MISRA.OBJ.TYPE.COMPAT Type not compatible with type of other declaration 8.4 Pre-2020.1
MISRA.OBJ.TYPE.IDENT Type not identical with type of other declaration 8.3 Pre-2020.1
MISRA.ONEDEFRULE.FUNC Global function definition in a header file 8.5 Pre-2020.1
MISRA.ONEDEFRULE.VAR Global variable definition in a header file 8.5 2020.2
MISRA.PPARAM.NEEDS.CONST Pointer parameter is not used to modify the addressed object but is not declared as a pointer to const 16.7 Pre-2020.1
MISRA.PRAGMA Non-documented pragma directive 3.4 Pre-2020.1
MISRA.PTR.ARITH Pointer is used in arithmetic or array index expression 17.1 17.4 2020.2
MISRA.PTR.TO_PTR_TO_PTR Pointer declaration has more than two levels of indirection 17.5 Pre-2020.1
MISRA.RETURN.NOT_LAST Return is not the last statement in a function 14.7 Pre-2020.1
MISRA.SHIFT.RANGE Right operand of shift operation is out of range - greater or equal to max bit-length of left operand, or negative 12.8 Pre-2020.1
MISRA.SIGNED_CHAR.NOT_NUMERIC 'signed char' or 'unsigned char' is used for non-numeric value 6.2 Pre-2020.1
MISRA.SIZEOF.SIDE_EFFECT Operand of sizeof has side effects 12.3 Pre-2020.1
MISRA.STDLIB.ABORT Use of 'abort', 'exit', 'getenv' or 'system' from library stdlib.h 20.11 Pre-2020.1
MISRA.STDLIB.ATOI Use of 'atof', 'atoi' or 'atol' from library stdlib.h 20.10 Pre-2020.1
MISRA.STDLIB.ERRNO Use of error indicator 'errno' 20.5 Pre-2020.1
MISRA.STDLIB.LONGJMP Use of setjmp macro or longjmp function 20.7 Pre-2020.1
MISRA.STDLIB.MEMORY Use of dynamic heap memory allocation 20.4 Pre-2020.1
MISRA.STDLIB.SIGNAL Use of the signal handling facilities of signal.h 20.8 Pre-2020.1
MISRA.STDLIB.STDIO Use of input/output library stdio.h in production code 20.9 Pre-2020.1
MISRA.STDLIB.TIME Use of the time handling functions of library time.h 20.12 Pre-2020.1
MISRA.STDLIB.WRONGNAME Reused name of standard library macro, object or function 20.2 Pre-2020.1
MISRA.STDLIB.WRONGNAME.UNDERSCORE Usage of a reserved name for naming a language entity 20.2 Pre-2020.1
MISRA.STMT.NO_COMPOUND The body of switch, while, do/while or for statement is not a compound statement 14.8 Pre-2020.1
MISRA.STMT.NO_EFFECT The statement has no side effects, and does not change control flow 14.2 Pre-2020.1
MISRA.SWITCH.BOOL Condition of switch statement is boolean expression 15.4 Pre-2020.1
MISRA.SWITCH.LABEL A switch label belongs to nested compound statement inside switch body 15.1 Pre-2020.1
MISRA.SWITCH.NODEFAULT No default clause at the end of a switch statement 15.3 Pre-2020.1
MISRA.SWITCH.NO_BREAK No break or throw statement at the end of switch-clause 15.2 Pre-2020.1
MISRA.SWITCH.NO_CASE No case-clause in a switch statement 15.5 Pre-2020.1
MISRA.TOKEN.BADCOM Inappropriate character sequence in a comment 2.3 Pre-2020.1
MISRA.TOKEN.CPCOM C++ style comments 2.2 Pre-2020.1
MISRA.TOKEN.OCTAL.ESCAPE Usage of octal escape sequences 7.1 Pre-2020.1
MISRA.TOKEN.OCTAL.INT Usage of octal integer constants 7.1 2020.4
MISRA.TOKEN.WRONGESC Incorrect escape sequence in a literal 4.1 Pre-2020.1
MISRA.TYPE.NAMECLASH.C.2004 Identifier in one name space has same spelling as identifier in other name space 5.6 2020.2
MISRA.TYPEDEF.NOT_UNIQUE Typedef name is used for another entity 5.3 Pre-2020.1
MISRA.UMINUS.UNSIGNED Operand of unary minus is unsigned 12.9 2021.2
MISRA.UNDEF Undef usage 19.6 Pre-2020.1
MISRA.UNDEF.NOTGLOBAL Undef not at the global level 19.5 Pre-2020.1
MISRA.UNDEF.WRONGNAME Undefinition of a name from the standard library 20.2 Pre-2020.1
MISRA.UNDEF.WRONGNAME.UNDERSCORE Undefinition of a reserved name 20.2 Pre-2020.1
MISRA.UNION Union is used 18.4 Pre-2020.1
MISRA.VAR.HIDDEN Identifier declared in an inner scope hides identifier in outer scope 5.2 2020.2
MISRA.VAR.MIN.VIS Name visibility is too wide 8.7 2020.1
MISRA.VAR.UNIQUE Identifier clashes with other identifier 5.7 Pre-2020.1
MISRA.VAR.UNIQUE.STATIC Identifier with static storage specifier clashes with other identifier 5.5 Pre-2020.1
MISRA.ZERO_EQ.IMPLICIT Non-boolean expression is implicitly tested against zero 13.2 Pre-2020.1
NUM.OVERFLOW.DF Possible numeric overflow or wraparound 12.11 2022.3
PORTING.VAR.EFFECTS Variable used twice in one expression where one usage is subject to side-effects 12.2 Pre-2020.1
SV.RVT.RETVAL_NOTTESTED Ignored Return Value 16.10 2021.2
UNINIT.HEAP.MIGHT Uninitialized Heap Use - possible 9.1 Pre-2020.1
UNINIT.HEAP.MUST Uninitialized Heap Use 9.1 Pre-2020.1
UNINIT.STACK.ARRAY.MIGHT Uninitialized Array - possible 9.1 Pre-2020.1
UNINIT.STACK.ARRAY.MUST Uninitialized Array 9.1 Pre-2020.1
UNINIT.STACK.ARRAY.PARTIAL.MUST Partially Uninitialized Array 9.1 Pre-2020.1
UNINIT.STACK.MIGHT Uninitialized Variable - possible 9.1 Pre-2020.1
UNINIT.STACK.MUST Uninitialized Variable 9.1 Pre-2020.1
UNREACH.ENUM Code is unreachable due to the possible value(s) of an enum 14.1 2021.3
UNREACH.GEN Unreachable code 14.1 Pre-2020.1
UNREACH.RETURN Unreachable Void Return 14.1 Pre-2020.1

Support Summary

Number of rules not statically verifiable: 11 of 142

Number of statically verifiable rules supported: 124 of 131

MISRA C:2004 coverage = 95% (excludes rules that are not statically verifiable)