From: Marco Costalba <mcostalba@gmail.com>
Date: Wed, 29 Oct 2008 06:52:20 +0000 (+0100)
Subject: Material: micro optimize map reading
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=79513e3a43f351779837be26bed92221a1402bf5

Material: micro optimize map reading

Do only one map walk per read instead of two.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
---

diff --git a/src/material.cpp b/src/material.cpp
index bdfd3939..b82bb055 100644
--- a/src/material.cpp
+++ b/src/material.cpp
@@ -70,9 +70,10 @@ namespace {
       EndgameEvaluationFunction* f = NULL;
 
       lock_grab(&EEFmapLock);
-      
-      if (EEFmap.find(key) != EEFmap.end())
-          f = EEFmap[key];
+
+      std::map<Key, EndgameEvaluationFunction*>::iterator it(EEFmap.find(key));
+      if (it != EEFmap.end())
+          f = it->second;
 
       lock_release(&EEFmapLock);
       return f;
@@ -84,8 +85,9 @@ namespace {
 
       lock_grab(&ESFmapLock);
 
-      if (ESFmap.find(key) != ESFmap.end())
-          si = ESFmap[key];
+      std::map<Key, ScalingInfo>::iterator it(ESFmap.find(key));
+      if (it != ESFmap.end())
+          si = it->second;
 
       lock_release(&ESFmapLock);
       return si;