Modified rule 11.6 (#1261)

addons/misra.py

@@ -830,11 +830,13 @@ def misra_11_6(data):
     for token in data.tokenlist:
         if not isCast(token):
             continue
+        if token.astOperand1.astOperand1:
+            continue
         vt1 = token.valueType
         vt2 = token.astOperand1.valueType
         if not vt1 or not vt2:
             continue
-        if vt1.pointer == 1 and vt1.type == 'void' and vt2.pointer == 0:
+        if vt1.pointer == 1 and vt1.type == 'void' and vt2.pointer == 0 and token.astOperand1.str != "0":
             reportError(token, 11, 6)
         elif vt1.pointer == 0 and vt2.pointer == 1 and vt2.type == 'void':
             reportError(token, 11, 6)

addons/test/misra-test.c

@@ -190,6 +190,7 @@ void misra_11_6() {
   void *p;
   p = (void*)123; // 11.6
   x = (u64)p;     // 11.6
+  p = ( void * )0 // no-warning
 }