safeguard: do not read/write 0 bytes (iostream)

2014-06-05 23:14:36 +06:00
parent a32116d24c
commit b6787b0014
6 changed files with 61 additions and 18 deletions
@@ -450,7 +450,10 @@ class StaticRTree
        tree_node_file.read((char *)&tree_size, sizeof(uint32_t));

        m_search_tree.resize(tree_size);
-        tree_node_file.read((char *)&m_search_tree[0], sizeof(TreeNode) * tree_size);
+        if (tree_size > 0)
+        {
+            tree_node_file.read((char *)&m_search_tree[0], sizeof(TreeNode) * tree_size);
+        }
        tree_node_file.close();
        // open leaf node file and store thread specific pointer
        if (!boost::filesystem::exists(leaf_file))