Documentation step 1: Properly document counting functions.

diff --git a/xml-tree.hpp b/xml-tree.hpp
index 436e2f9..68e5f36 100644 (file)
--- a/xml-tree.hpp
+++ b/xml-tree.hpp
@@ -47,12 +47,50 @@ public:
   ~xml_tree();
 
   //Counting functions
+  /**
+   * [size()] returns the size of the tree (number of nodes)
+   * Runs in O(1)
+   */
   inline uint32_t size() const;
+
+  /**
+   * [num_tags()] returns the number of distinct tags.
+   * Runs in O(1)
+   */
   inline uint32_t num_tags() const;
+
+  /**
+   * [subtree_size(n)] returns the size of the subtree (number of nodes)
+   * rooted at n.
+   * Runs in O(1)
+   */
   inline uint32_t subtree_size(node_t) const;
+
+  /**
+   * [subtree_tags(n, t)] returns the number of occurences of tag [t] in the
+   * subtree rooted at [n]
+   * Runs in O(1)
+   */
   inline uint32_t subtree_tags(node_t, tag_t) const;
+
+  /**
+   * [subtree_elements(n)] returns the number of element nodes below [n]
+   * Runs in O(attribute_ids->size()+3)
+   */
   inline uint32_t subtree_elements(node_t) const;
+
+  /**
+   * [num_children(n)] returns the number of child nodes of [n]
+   * (both text and elements, and including a fake <@> node if
+   * present).
+   * Runs in O(1) (?)
+   */
   uint32_t num_children(node_t) const;
+
+  /**
+   * [child_pos(n)] returns the position of [n] amongst its siblings
+   * Runs in O(1) (?)
+   */
   uint32_t child_pos(node_t) const;