From 8c42e052ac40f3033904753709b6c97b6eae031b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Marjam=C3=A4ki?= <daniel.marjamaki@gmail.com>
Date: Fri, 14 Apr 2017 20:51:09 +0200
Subject: [PATCH] Misra: Added rule 18.5

---
 addons/misra-test.c |  4 ++++
 addons/misra.py     | 17 +++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/addons/misra-test.c b/addons/misra-test.c
index 054878193..7e16adcde 100644
--- a/addons/misra-test.c
+++ b/addons/misra-test.c
@@ -180,3 +180,7 @@ void misra_17_6(int x[static 20]) {} // 17.6
 void misra_17_8(int x) {
   x = 3; // 17.8
 }
+
+void misra_18_5() {
+  int *** p;  // 18.5
+}
diff --git a/addons/misra.py b/addons/misra.py
index 435a6b74c..369769ba0 100644
--- a/addons/misra.py
+++ b/addons/misra.py
@@ -517,6 +517,22 @@ def misra_17_8(data):
         if var and var.isArgument:
             reportError(token, 17, 8)
 
+def misra_18_5(data):
+    for var in data.variables:
+        if not var.isPointer:
+            continue
+        typetok = var.nameToken
+        count = 0
+        while typetok:
+            if typetok.str == '*':
+                count = count + 1
+            elif not typetok.isName:
+                break
+            typetok = typetok.previous
+        if count > 2:
+            reportError(var.nameToken, 18, 5)
+
+
 if '-verify' in sys.argv[1:]:
     VERIFY = True
 
@@ -579,6 +595,7 @@ for arg in sys.argv[1:]:
             misra_17_1(data.rawTokens)
             misra_17_6(data.rawTokens)
         misra_17_8(cfg)
+        misra_18_5(cfg)
 
     if VERIFY:
         for expected in VERIFY_EXPECTED: