Fix warnings

sql/handler.cc

@@ -2079,7 +2079,7 @@ uint get_sql_xid(XID *xid, char *buf)
             MY_INT64_NUM_DECIMAL_DIGITS, -10, xid->formatID);
   }
 
-  return buf - orig_buf;
+  return (uint)(buf - orig_buf);
 }
 
 

sql/semisync_master_ack_receiver.cc

@@ -254,7 +254,7 @@ void Ack_receiver::run()
     struct timeval tv= {1, 0};
     fds= read_fds;
     /* select requires max fd + 1 for the first argument */
-    ret= select(max_fd+1, &fds, NULL, NULL, &tv);
+    ret= select((int)(max_fd+1), &fds, NULL, NULL, &tv);
     if (ret <= 0)
     {
       mysql_mutex_unlock(&m_mutex);

sql/sql_base.cc

@@ -5657,7 +5657,7 @@ find_field_in_table(THD *thd, TABLE *table, const char *name, uint length,
         DBUG_EVALUATE_IF("test_completely_invisible", 0, 1))
       DBUG_RETURN((Field*)0);
 
-    *cached_field_index_ptr= field_ptr - table->field;
+    *cached_field_index_ptr= (uint)(field_ptr - table->field);
     field= *field_ptr;
   }
   else