From d4dfa6b325d5d78f61e3ccf695aae9030d814159 Mon Sep 17 00:00:00 2001
From: nocturn9x <nocturn9x@nocturn9x.space>
Date: Tue, 14 May 2024 17:03:28 +0200
Subject: [PATCH] Fix clear() proc for transposition table

---
 Chess/nimfish/nimfishpkg/transpositions.nim | 3 ++-
 Chess/nimfish/nimfishpkg/uci.nim            | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Chess/nimfish/nimfishpkg/transpositions.nim b/Chess/nimfish/nimfishpkg/transpositions.nim
index eee278c..7707e81 100644
--- a/Chess/nimfish/nimfishpkg/transpositions.nim
+++ b/Chess/nimfish/nimfishpkg/transpositions.nim
@@ -85,7 +85,8 @@ func clear*(self: var TTable) {.inline.} =
     ## Clears the transposition table
     ## without releasing the memory
     ## associated with it
-    self.data.setLen(0)
+    for i in 0..self.data.high():
+        self.data[i] = TTEntry()
 
 
 func resize*(self: var TTable, newSize: uint64) =
diff --git a/Chess/nimfish/nimfishpkg/uci.nim b/Chess/nimfish/nimfishpkg/uci.nim
index bb3dd5b..c05db20 100644
--- a/Chess/nimfish/nimfishpkg/uci.nim
+++ b/Chess/nimfish/nimfishpkg/uci.nim
@@ -466,6 +466,8 @@ proc startUCISession* =
                             if session.debug:
                                 echo &"info string set TT hash table size to {session.hashTableSize} MiB"
                         of "TTClear":
+                            if session.debug:
+                                echo "info string clearing TT"
                             transpositionTable[].clear()
                         of "Threads":
                             let numWorkers = cmd.value.parseInt()