X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbitboard.cpp;h=bfacc4121a0312b2d2461239008344c940c3857f;hp=3df7d42546b333935d45cfce913a7330bc6a3c49;hb=ce6b7a1b859ab1b416e6df5bddfc942c9c2f9ae7;hpb=b3470d7ab1d8cfe0bacffc42fc9b30347940b5f4

diff --git a/src/bitboard.cpp b/src/bitboard.cpp
index 3df7d425..bfacc412 100644
--- a/src/bitboard.cpp
+++ b/src/bitboard.cpp
@@ -18,8 +18,7 @@
 */
 
 #include <algorithm>
-#include <cstring>
-#include <sstream>
+#include <cstring> // For memset
 
 #include "bitboard.h"
 #include "bitcount.h"
@@ -130,19 +129,17 @@ Square msb(Bitboard b) {
 
 const std::string Bitboards::pretty(Bitboard b) {
 
-  std::ostringstream ss;
+  std::string s = "+---+---+---+---+---+---+---+---+\n";
 
-  for (Rank rank = RANK_8; rank >= RANK_1; --rank)
+  for (Rank r = RANK_8; r >= RANK_1; --r)
   {
-      ss << "+---+---+---+---+---+---+---+---+" << '\n';
+      for (File f = FILE_A; f <= FILE_H; ++f)
+          s.append(b & make_square(f, r) ? "| X " : "|   ");
 
-      for (File file = FILE_A; file <= FILE_H; ++file)
-          ss << "| " << (b & (file | rank) ? "X " : "  ");
-
-      ss << "|\n";
+      s.append("|\n+---+---+---+---+---+---+---+---+\n");
   }
-  ss << "+---+---+---+---+---+---+---+---+";
-  return ss.str();
+
+  return s;
 }