X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=backend.c;h=37648d908001a4706c043bd03772cea0e342f9c0;hb=6b5834a77b0a0589265710e9a13aef0c45c14bc2;hp=6fca83d17779e13a5750601a92f8cbcafb772e16;hpb=2eb3eb048b16f2ffd1f1c8dad3987871b0f9bd72;p=xboard.git

diff --git a/backend.c b/backend.c
index 6fca83d..37648d9 100644
--- a/backend.c
+++ b/backend.c
@@ -516,7 +516,7 @@ AppData appData;
 Board boards[MAX_MOVES];
 /* [HGM] Following 7 needed for accurate legality tests: */
 signed char  castlingRank[BOARD_FILES]; // and corresponding ranks
-signed char  initialRights[BOARD_FILES];
+unsigned char initialRights[BOARD_FILES];
 int   nrCastlingRights; // For TwoKings, or to implement castling-unknown status
 int   initialRulePlies, FENrulePlies;
 FILE  *serverMoves = NULL; // next two for broadcasting (/serverMoves option)
@@ -5381,6 +5381,17 @@ int dragging;
 static ClickType lastClickType;
 
 int
+PieceInString (char *s, ChessSquare piece)
+{
+  char *p, ID = ToUpper(PieceToChar(piece)), suffix = PieceSuffix(piece);
+  while((p = strchr(s, ID))) {
+    if(!suffix || p[1] == suffix) return TRUE;
+    s = p;
+  }
+  return FALSE;
+}
+
+int
 Partner (ChessSquare *p)
 { // change piece into promotion partner if one shogi-promotes to the other
   ChessSquare partner = promoPartner[*p];
@@ -5409,7 +5420,7 @@ Sweep (int step)
 	if(!step) step = -1;
     } while(PieceToChar(promoSweep) == '.' || PieceToChar(promoSweep) == '~' ||
 	    !toggleFlag && PieceToChar(promoSweep) == '+' || // skip promoted versions of other
-	    promoRestrict[0] ? !strchr(promoRestrict, ToUpper(PieceToChar(promoSweep))) : // if choice set available, use it 
+	    promoRestrict[0] ? !PieceInString(promoRestrict, promoSweep) : // if choice set available, use it 
 	    promoSweep == pawn ||
 	    appData.testLegality && (promoSweep == king || gameInfo.variant != VariantChuChess &&
             (promoSweep == WhiteLion || promoSweep == BlackLion)));