From: Marco Costalba <mcostalba@gmail.com>
Date: Tue, 19 Mar 2013 18:08:00 +0000 (+0100)
Subject: Better document bitbase loop
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=077e32efc9fdd30d561356b2fd331d6f42f9a256

Better document bitbase loop

Thanks to Lucas to spot the weak comment and
to Jundery to suggest a better one.

No functional change.
---

diff --git a/src/bitbase.cpp b/src/bitbase.cpp
index 0599c3c8..425d0f14 100644
--- a/src/bitbase.cpp
+++ b/src/bitbase.cpp
@@ -89,7 +89,8 @@ void Bitbases::init_kpk() {
   for (idx = 0; idx < IndexMax; idx++)
       db[idx].classify_leaf(idx);
 
-  // Iterate until all positions are classified (15 cycles needed)
+  // Iterate through the positions until no more of the unknown positions can be
+  // changed to either wins or draws (15 cycles needed).
   while (repeat)
       for (repeat = idx = 0; idx < IndexMax; idx++)
           if (db[idx] == UNKNOWN && db[idx].classify(db) != UNKNOWN)