X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbitboard.cpp;h=a73c5a2dc7ad970d6c8f16275ead918d2af46ac1;hp=b60f54bd55bef9339d4a5fe750a7156e36d0393c;hb=b1e79fed99d52dcb20d2d6a9c62522226e957963;hpb=5c81602d14539f8259a715477315e28b5de7cb54

diff --git a/src/bitboard.cpp b/src/bitboard.cpp
index b60f54bd..a73c5a2d 100644
--- a/src/bitboard.cpp
+++ b/src/bitboard.cpp
@@ -35,6 +35,7 @@
 #include <iostream>
 
 #include "bitboard.h"
+#include "bitcount.h"
 #include "direction.h"
 
 
@@ -302,7 +303,7 @@ union b_union {
     struct {
         uint32_t l;
         uint32_t h;
-    };
+    } dw;
 };
 
 // WARNING: Needs -fno-strict-aliasing compiler option
@@ -313,15 +314,15 @@ Square pop_1st_bit(Bitboard *bb) {
 
   u.b = *bb;
 
-  if (u.l)
+  if (u.dw.l)
   {
-      b = u.l;
+      b = u.dw.l;
       *((uint32_t*)bb) = b & (b - 1);
       b ^= (b - 1);
   }
   else
   {
-      b = u.h;
+      b = u.dw.h;
       *((uint32_t*)bb+1) = b & (b - 1); // Little endian only?
       b = ~(b ^ (b - 1));
   }
@@ -339,7 +340,7 @@ Square pop_1st_bit(Bitboard *b) {
 
 #endif
 
-#else
+#else // defined(USE_FOLDED_BITSCAN)
 
 static const int BitTable[64] = {
   0, 1, 2, 7, 3, 13, 8, 19, 4, 25, 14, 28, 9, 34, 20, 40, 5, 17, 26, 38, 15,