addons: Added an addon that locates casts.

addons/findcasts.py

@@ -0,0 +1,36 @@
+#/usr/bin/python
+#
+# Locate casts in the code
+#
+
+import cppcheckdata
+import sys
+
+messages = []
+
+for arg in sys.argv[1:]:
+    print('Checking ' + arg + '...')
+    data = cppcheckdata.parsedump(arg)
+
+    for token in data.tokenlist:
+        if token.str != '(' or not token.astOperand1 or token.astOperand2:
+            continue
+
+        # we probably have a cast.. if there is something inside the parentheses
+        # there is a cast. Otherwise this is a function call.
+        typetok = token.next
+        if not typetok.isName:
+            continue
+
+        # cast number => skip output
+        if token.astOperand1.isNumber:
+            continue
+
+        # void cast => often used to suppress compiler warnings
+        if typetok.str == 'void':
+            continue
+
+        msg = '[' + token.file + ':' + str(token.linenr) + '] (information) findcasts.py: found a cast\n'
+        if not msg in messages:
+            messages.append(msg)
+            sys.stderr.write(msg)