- Revert: Change index parameter types from int to size_t to make 0-based range implicit.

- Add checks that index values are >= 0.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@409 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tools/make_ctocpp_impl.py

@@ -118,7 +118,15 @@ def make_ctocpp_function_impl_new(clsname, name, func):
             result += comment+\
                       '\n  DCHECK(!'+arg_name+'.empty());'\
                       '\n  if ('+arg_name+'.empty())'\
-                      '\n    return'+retval_default+';'            
+                      '\n    return'+retval_default+';'  
+
+        # check index params
+        index_params = arg.parent.get_attrib_list('index_param')
+        if not index_params is None and arg_name in index_params:
+            result += comment+\
+                      '\n  DCHECK('+arg_name+' >= 0);'\
+                      '\n  if ('+arg_name+' < 0)'\
+                      '\n    return'+retval_default+';'
 
     if len(optional) > 0:
         result += '\n  // Unverified params: '+string.join(optional,', ')