From 885476dba2f1a290d949e4a004383eaf7fbab07c Mon Sep 17 00:00:00 2001
From: Yury Melnichek <melnichek@malinovka.local>
Date: Thu, 25 Aug 2011 17:01:01 +0200
Subject: [PATCH] [search] Added few comments.

---
 search/latlon_match.hpp | 3 ++-
 search/search_trie.hpp  | 6 ++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/search/latlon_match.hpp b/search/latlon_match.hpp
index c6670488fb..d9a688259f 100644
--- a/search/latlon_match.hpp
+++ b/search/latlon_match.hpp
@@ -5,7 +5,8 @@
 namespace search
 {
 
-bool MatchLatLon(string const & s, double & lat, double & lon,
+// Check if query can be represented as '(lat, lon)'.
+bool MatchLatLon(string const & query, double & lat, double & lon,
                  double & precisionLat, double & precisionLon);
 
 }  // namespace search
diff --git a/search/search_trie.hpp b/search/search_trie.hpp
index 4b62760373..9538efb716 100644
--- a/search/search_trie.hpp
+++ b/search/search_trie.hpp
@@ -15,12 +15,13 @@ namespace search
 namespace trie
 {
 
+// Value: feature offset and search rank are stored.
 struct ValueReader
 {
   struct ValueType
   {
-    uint8_t m_rank;
-    uint32_t m_featureId;
+    uint8_t m_rank;        // Search rank of the feature.
+    uint32_t m_featureId;  // Offset of the featuer.
   };
 
   template <typename SourceT> void operator() (SourceT & src, ValueType & value) const
@@ -30,6 +31,7 @@ struct ValueReader
   }
 };
 
+// Edge value: maximum search rank of the subtree is stored.
 struct EdgeValueReader
 {
   typedef uint8_t ValueType;