X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftimeman.cpp;h=702f0f31eafb8f7d751552078bf12b18a889e6f9;hp=9accfbb346a6e2ca77b960378a29a496c3ceeb4f;hb=77341f67f30456dc456177062309ad5e73e2e1a4;hpb=c9dcda6ac488c0058ebd567e1f52e30b8cd0db20

diff --git a/src/timeman.cpp b/src/timeman.cpp
index 9accfbb3..702f0f31 100644
--- a/src/timeman.cpp
+++ b/src/timeman.cpp
@@ -18,6 +18,7 @@
 */
 
 #include <algorithm>
+#include <cfloat>
 #include <cmath>
 
 #include "search.h"
@@ -44,7 +45,7 @@ namespace {
 
   double move_importance(int ply) {
 
-    return pow((1 + exp((ply - xshift) / xscale)), -skewfactor);
+    return pow((1 + exp((ply - xshift) / xscale)), -skewfactor) + DBL_MIN; // Ensure non-zero
   }
 
 
@@ -65,7 +66,7 @@ void TimeManager::pv_instability(double bestMoveChanges) {
 
 void TimeManager::init(const Search::LimitsType& limits, int currentPly, Color us)
 {
-  /* We support four different kind of time controls:
+  /* We support four different kinds of time controls:
 
       increment == 0 && movesToGo == 0 means: x basetime  [sudden death!]
       increment == 0 && movesToGo != 0 means: x moves in y minutes
@@ -91,7 +92,7 @@ void TimeManager::init(const Search::LimitsType& limits, int currentPly, Color u
 
   // Initialize all to maximum values but unstablePVExtraTime that is reset
   unstablePVExtraTime = 0;
-  optimumSearchTime = maximumSearchTime = limits.time[us];
+  optimumSearchTime = maximumSearchTime = std::max(limits.time[us], minThinkingTime);
 
   // We calculate optimum time usage for different hypothetical "moves to go"-values and choose the
   // minimum of calculated search time values. Usually the greatest hypMTG gives the minimum values.