Initializing array or Structure with zero causes misra violation to Rule11.9

Question

I am using Klocworks to check MISRA violations on C99. When initializing an array of type u8(unsigned char) or a structure whose first element is of the same type, it shows a violation to MISRA Rule 11.9.

Example:

typedef unsigned char u8;

typedef {
  u8 a;
  u8 b;
  u8 c;
} tmyStruct;

const tmyStruct myStruct = { // MISRA.LITERAL.NULL.PTR.CONST.2012(Rule 11.9)
  .a = (u8)0,
  .b = (u8)0,
  .c = (u8)1
};

OR

typedef {
  u16 a;
  u8 b;
  u8 c;
} tmyStruct;

tmySructArr[3] =
{
 {
  .a = (u16)0,
  .b = (u8)0,
  .c = (u8)1
 },
 {
  .a = (u16)0,
  .b = (u8)0,
  .c = (u8)1
 },
 {
  .a = (u16)0,
  .b = (u8)0,
  .c = (u8)1
 },
};

Answer 1

Rule 11.9 of MISRA C:2012 states

The macro NULL shall be the only permitted form of integer null pointer constant.

While I see several zero value constants, I don't see any pointers, so I politely suggest that this is a false positive, and that you need to refer this to Klokwork/Perforce support.

PS: Please ditch the custom integer types, and use <stdint.h>

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