X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=test%2Fknight.c;h=f9ba1dc25bf083ea9ee73cdd40f5af87fec9c48c;hp=0e091f46dfa50e54fdcde54120e04180bad4c0c2;hb=c04d54322f7835ed42e597967d8fa5471025fcac;hpb=46722468f47c2b77b3987729b4bcf2321cccfd01

diff --git a/test/knight.c b/test/knight.c
index 0e091f46..f9ba1dc2 100644
--- a/test/knight.c
+++ b/test/knight.c
@@ -1,3 +1,30 @@
+/****************************************************************************
+ * Copyright (c) 1998-2006,2008 Free Software Foundation, Inc.              *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
 /*
  * Knight's Tour - a brain game
  *
@@ -6,11 +33,9 @@
  * Eric S. Raymond <esr@snark.thyrsus.com> July 22 1995.  Mouse support
  * added September 20th 1995.
  *
- * $Id: knight.c,v 1.25 2002/06/29 23:32:18 tom Exp $
+ * $Id: knight.c,v 1.28 2008/08/03 23:04:26 tom Exp $
  */
 
-#include <ctype.h>
-
 #include <test.priv.h>
 
 /* board size */
@@ -358,7 +383,7 @@ drawmove(chtype tchar, int oldy, int oldx, int row, int column)
 	mark_possibles(oldy, oldx, ' ');
     }
 
-    if (row != -1 && column != -1) {
+    if (row >= 0 && column >= 0) {
 	markcell(trail, row, column);
 	mark_possibles(row, column, minus);
 	board[row][column] = TRUE;