PRE30-C

Do not create a universal character name through concatenation.

L3

Yes

PRE31-C

Avoid side effects in arguments to unsafe macros.

L3

Yes

PRE32-C

Do not use preprocessor directives in invocations of function-like macros.

L3

Yes

DCL30-C

Declare objects with appropriate storage durations.

L2

Yes

DCL31-C

Declare identifiers before using them.

L3

Yes

DCL36-C

Do not declare an identifier with conflicting linkage classifications.

L2

Yes

DCL37-C

Do not declare or define a reserved identifier.

L3

Yes

DCL38-C

Use the correct syntax when declaring a flexible array member.

L3

Yes

DCL39-C

Avoid information leakage when passing a structure across a trust boundary.

L3

Yes

DCL40-C

Do not create incompatible declarations of the same function or object.

L3

Yes

DCL41-C

Do not declare variables inside a switch statement before the first case label.

L3

Yes

EXP30-C

Do not depend on the order of evaluation for side effects.

L2

Yes

EXP32-C

Do not access a volatile object through a nonvolatile reference.

L2

Yes

EXP33-C

Do not read uninitialized memory.

L1

Yes

EXP34-C

Do not dereference null pointers.

L1

Yes

EXP35-C

Do not modify objects with temporary lifetime.

L3

No

EXP36-C

Do not cast pointers into more strictly aligned pointer types.

L3

Yes

EXP37-C

Call functions with the correct number and type of arguments.

L3

Yes

EXP39-C

Do not access a variable through a pointer of an incompatible type.

L3

Yes

EXP40-C

Do not modify constant objects.

L3

No

EXP42-C

Do not compare padding data.

L2

Yes

EXP43-C

Avoid undefined behavior when using restrict-qualified pointers.

L3

Yes

EXP44-C

Do not rely on side effects in operands to sizeof, _Alignof, or _Generic.

L3

Yes

EXP45-C

Do not perform assignments in selection statements.

L2

Yes

EXP46-C

Do not use a bitwise operator with a Boolean-like operand.

L2

Yes

EXP47-C

Do not call va_arg with an argument of the incorrect type.

L2

Yes

INT30-C

Ensure that unsigned integer operations do not wrap.

L2

Yes

INT31-C

Ensure that integer conversions do not result in lost or misinterpreted data.

L2

Yes

INT32-C

Ensure that operations on signed integers do not result in overflow.

L2

Yes

INT33-C

Ensure that division and remainder operations do not result in divide-by-zero errors.

L2

Yes

INT34-C

Do not shift an expression by a negative number of bits or by greater than or equal to the number of bits that exist in the operand.

L3

Yes

INT35-C

Use correct integer precisions.

L3

No

INT36-C

Converting a pointer to integer or integer to pointer.

L3

Yes

FLP30-C

Do not use floating-point variables as loop counters.

L2

Yes

FLP32-C

Prevent or detect domain and range errors in math functions.

L2

No

FLP34-C

Ensure that floating-point conversions are within range of the new type.

L3

Yes

FLP36-C

Preserve precision when converting integral values to floating-point type.

L3

Yes

FLP37-C

Do not use object representations to compare floating-point values.

L3

Yes

ARR30-C

Do not form or use out-of-bounds pointers or array subscripts.

L2

Yes

ARR32-C

Ensure size arguments for variable length arrays are in a valid range.

L2

Yes

ARR36-C

Do not subtract or compare two pointers that do not refer to the same array.

L2

Yes

ARR37-C

Do not add or subtract an integer to a pointer to a non-array object.

L2

Yes

ARR38-C

Guarantee that library functions do not form invalid pointers.

L1

Yes

ARR39-C

Do not add or subtract a scaled integer to a pointer.

L2

Yes

STR30-C

Do not attempt to modify string literals.

L2

Yes

STR31-C

Guarantee that storage for strings has sufficient space for character data and the null terminator.

L1

Yes

STR32-C

Do not pass a non-null-terminated character sequence to a library function that expects a string.

L1

Yes

STR34-C

Cast characters to unsigned char before converting to larger integer sizes.

L2

Yes

STR37-C

Arguments to character-handling functions must be representable as an unsigned char.

L3

Yes

STR38-C

Do not confuse narrow and wide character strings and functions.

L1

Yes

MEM30-C

Do not access freed memory.

L1

Yes

MEM31-C

Free dynamically allocated memory when no longer needed.

L2

Yes

MEM33-C

Allocate and copy structures containing a flexible array member dynamically.

L3

Yes

MEM34-C

Only free memory allocated dynamically.

L1

Yes

MEM35-C

Allocate sufficient memory for an object.

L2

Yes

MEM36-C

Do not modify the alignment of objects by calling realloc().

L3

Yes

FIO30-C

Exclude user input from format strings.

L1

Yes

FIO32-C

Do not perform operations on devices that are only appropriate for files.

L3

No

FIO34-C

Distinguish between characters read from a file and EOF or WEOF.

L1

Yes

FIO37-C

Do not assume that fgets() or fgetws() returns a nonempty string when successful.

L1

No

FIO38-C

Do not copy a FILE object.

L3

Yes

FIO39-C

Do not alternately input and output from a stream without an intervening flush or positioning call.

L2

Yes

FIO40-C

Reset strings on fgets() or fgetws() failure.

L3

No

FIO41-C

Do not call getc(), putc(), getwc(), or putwc() with a stream argument that has side effects.

L3

No

FIO42-C

Close files when they are no longer needed.

L3

Yes

FIO44-C

Only use values for fsetpos() that are returned from fgetpos().

L3

Yes

FIO45-C

Avoid TOCTOU race conditions while accessing files.

L2

Yes

FIO46-C

Do not access a closed file.

L3

Yes

FIO47-C

Use valid format strings.

L2

Yes

ENV30-C

Do not modify the object referenced by the return value of certain functions.

L3

Yes

ENV31-C

Do not rely on an environment pointer following an operation that may invalidate it.

L3

No

ENV32-C

All exit handlers must return normally.

L1

Yes

ENV33-C

Do not call system().

L1

Yes

ENV34-C

Do not store pointers returned by certain functions.

L3

Yes

SIG30-C

Call only asynchronous-safe functions within signal handlers.

L1

No

SIG31-C

Do not access shared objects in signal handlers.

L2

No

SIG34-C

Do not call signal() from within interruptible signal handlers.

L3

Yes

SIG35-C

Do not return from a computational exception signal handler.

L3

Yes

ERR30-C

Set errno to zero before calling a library function known to set errno, and check errno only after the function returns a value indicating failure.

L2

Yes

ERR32-C

Do not rely on indeterminate values of errno.

L3

Yes

ERR33-C

Detect and handle standard library errors.

L1

Yes

ERR34-C

Detect errors when converting a string to a number.

L3

Yes

CON30-C

Clean up thread-specific storage.

L3

No

CON31-C

Do not destroy a mutex while it is locked.

L3

No

CON32-C

Prevent data races when accessing bit-fields from multiple threads.

L2

No

CON33-C

Avoid race conditions when using library functions.

L3

Yes

CON34-C

Declare objects shared between threads with appropriate storage durations.

L3

No

CON35-C

Avoid deadlock by locking in a predefined order.

L3

Yes

CON36-C

Wrap functions that can spuriously wake up in a loop.

L3

Yes

CON37-C

Do not call signal() in a multithreaded program.

L2

Yes

CON38-C

Preserve thread safety and liveness when using condition variables.

L3

Yes

CON39-C

Do not join or detach a thread that was previously joined or detached.

L2

No

CON40-C

Do not refer to an atomic variable twice in an expression.

L2

Yes

CON41-C

Wrap functions that can fail spuriously in a loop.

L3

Yes

CON43-C

Do not allow data races in multithreaded code.

L3

No

MSC30-C

Do not use the rand() function for generating pseudorandom numbers.

L2

Yes

MSC32-C

Properly seed pseudorandom number generators.

L1

Yes

MSC33-C

Do not pass invalid data to the asctime() function.

L1

Yes

MSC37-C

Ensure that control never reaches the end of a non-void function.

L2

Yes

MSC38-C

Do not treat a predefined identifier as an object if it might only be implemented as a macro.

L3

No

MSC39-C

Do not call va_arg() on a va_list that has an indeterminate value.

L3

Yes

MSC40-C

Do not violate constraints.

L3

Yes

MSC41-C

Never hard code sensitive information.

L1

Yes

POS30-C

Use the readlink() function properly.

L1

Yes

POS34-C

Do not call putenv() with a pointer to an automatic variable as the argument.

L2

Yes

POS35-C

Avoid race conditions while checking for the existence of a symbolic link.

L1

Yes

POS36-C

Observe correct revocation order while relinquishing privileges.

L1

Yes

POS37-C

Ensure that privilege relinquishment is successful.

L1

Yes

POS38-C

Beware of race conditions when using fork and file descriptors.

L3

No

POS39-C

Use the correct byte ordering when transferring data between systems.

L1

Yes

POS44-C

Do not use signals to terminate threads.

L2

Yes

POS47-C

Do not use threads that can be canceled asynchronously.

L1

Yes

POS48-C

Do not unlock or destroy another POSIX thread's mutex.

L3

No

POS49-C

When data must be accessed by multiple threads, provide a mutex and guarantee no adjacent data is also accessed.

L2

No

POS50-C

Declare objects shared between POSIX threads with appropriate storage durations.

L3

No

POS51-C

Avoid deadlock with POSIX threads by locking in predefined order.

L3

Yes

POS52-C

Do not perform operations that can block while holding a POSIX lock.

L3

Yes

POS53-C

Do not use more than one mutex for concurrent waiting operations on a condition variable.

L3

No

POS54-C

Detect and handle POSIX library errors.

L1

Yes

WIN30-C

Properly pair allocation and deallocation functions

L2

Yes