From 9089c023e881715fe42fe104d24df44489cd3e35 Mon Sep 17 00:00:00 2001
From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Mon, 8 Feb 2016 13:21:20 +0100
Subject: [PATCH] Fix printing of 'x' in position diagram

The times where 'x' was used as PieceToChar result for an empty square
are long behind us; 'x' now is a valid piece ID.
---
 backend.c |    2 +-
 moves.c   |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend.c b/backend.c
index 54c16be..3f673a5 100644
--- a/backend.c
+++ b/backend.c
@@ -16277,7 +16277,7 @@ PrintPosition (FILE *fp, int move)
     for (i = BOARD_HEIGHT - 1; i >= 0; i--) {
         for (j = BOARD_LEFT; j < BOARD_RGHT; j++) {
 	    char c = PieceToChar(boards[move][i][j]);
-	    fputc(c == 'x' ? '.' : c, fp);
+	    fputc(c == '?' ? '.' : c, fp);
             fputc(j == BOARD_RGHT - 1 ? '\n' : ' ', fp);
 	}
     }
diff --git a/moves.c b/moves.c
index bd516de..92c0371 100644
--- a/moves.c
+++ b/moves.c
@@ -126,7 +126,7 @@ char
 PieceToChar (ChessSquare p)
 {
     int c;
-    if((int)p < 0 || (int)p >= (int)EmptySquare) return('x'); /* [HGM] for safety */
+    if((int)p < 0 || (int)p >= (int)EmptySquare) return('?'); /* [HGM] for safety */
     c = pieceToChar[(int) p];
     if(c & 128) c = c & 63 | 64;
     return c;
-- 
1.7.0.4