Code cleanups

- Replace "class Repeat_count" with function call.
  There is no reason for this class to exists. More complex and more
  code than doing a function!  In addition the code didn't match what
  the val() function was doing.

Other things:
- Fixed compiler failure in print_cached_tables_callback()

sql/item_strfunc.cc

@@ -58,25 +58,21 @@ C_MODE_END
 
 size_t username_char_length= 80;
 
+/*
+  Calculate max length of string from length argument to LEFT and RIGHT
+*/
 
-class Repeat_count
+static uint32 max_length_for_string(Item *item)
 {
-  ulonglong m_count;
-public:
-  Repeat_count(Item *item)
-   :m_count(0)
+  ulonglong length= item->val_int();
+  /* Note that if value is NULL, val_int() returned 0 */
+  if (length > (ulonglong) INT_MAX32)
   {
-    Longlong_hybrid nr= item->to_longlong_hybrid();
-    if (!item->null_value && !nr.neg())
-    {
-      // Assume that the maximum length of a String is < INT_MAX32
-      m_count= (ulonglong) nr.value();
-      if (m_count > (ulonglong) INT_MAX32)
-        m_count= (ulonglong) INT_MAX32;
-    }
+    /* Limit string length to maxium string length in MariaDB (2G) */
+    length= item->unsigned_flag ? (ulonglong) INT_MAX32 : 0;
   }
-  ulonglong count() const { return m_count; }
-};
+  return (uint32) length;
+}
 
 
 /*
@@ -1656,8 +1652,8 @@ void Item_str_func::left_right_max_length()
   uint32 char_length= args[0]->max_char_length();
   if (args[1]->const_item() && !args[1]->is_expensive())
   {
-    Repeat_count tmp(args[1]);
-    set_if_smaller(char_length, (uint) tmp.count());
+    uint32 length= max_length_for_string(args[1]);
+    set_if_smaller(char_length, length);
   }
   fix_char_length(char_length);
 }
@@ -3025,8 +3021,8 @@ bool Item_func_repeat::fix_length_and_dec()
   DBUG_ASSERT(collation.collation != NULL);
   if (args[1]->const_item() && !args[1]->is_expensive())
   {
-    Repeat_count tmp(args[1]);
-    ulonglong char_length= (ulonglong) args[0]->max_char_length() * tmp.count();
+    uint32 length= max_length_for_string(args[1]);
+    ulonglong char_length= (ulonglong) args[0]->max_char_length() * length;
     fix_char_length_ulonglong(char_length);
     return false;
   }
@@ -3099,7 +3095,7 @@ bool Item_func_space::fix_length_and_dec()
   collation.set(default_charset(), DERIVATION_COERCIBLE, MY_REPERTOIRE_ASCII);
   if (args[0]->const_item() && !args[0]->is_expensive())
   {
-    fix_char_length_ulonglong(Repeat_count(args[0]).count());
+    fix_char_length_ulonglong(max_length_for_string(args[0]));
     return false;
   }
   max_length= MAX_BLOB_WIDTH;
@@ -3218,7 +3214,7 @@ bool Item_func_pad::fix_length_and_dec()
   DBUG_ASSERT(collation.collation->mbmaxlen > 0);
   if (args[1]->const_item() && !args[1]->is_expensive())
   {
-    fix_char_length_ulonglong(Repeat_count(args[1]).count());
+    fix_char_length_ulonglong(max_length_for_string(args[1]));
     return false;
   }
   max_length= MAX_BLOB_WIDTH;

sql/sql_test.cc

@@ -88,9 +88,8 @@ static my_bool print_cached_tables_callback(TDC_element *element,
   while ((entry= it++))
   {
     THD *in_use= entry->in_use;
-    printf("%-14.14s %-32s%6lu%8ld%6d  %s\n",
+    printf("%-14.14s %-32s%8ld%6d  %s\n",
            entry->s->db.str, entry->s->table_name.str,
-           (ulong) element->version,
            in_use ? (long) in_use->thread_id : (long) 0,
            entry->db_stat ? 1 : 0,
            in_use ? lock_descriptions[(int)entry->reginfo.lock_type] :