ncurses 5.9 - patch 20121215

[ncurses.git] / test / movewindow.c

diff --git a/test/movewindow.c b/test/movewindow.c
index b855942832c7ed97ab19f688e181b19a7042dc51..612cb8823cb75cbabb200f2f9701654a5a72d1e2 100644 (file)
--- a/test/movewindow.c
+++ b/test/movewindow.c
@@ -26,7 +26,7 @@
  * authorization.                                                           *
  ****************************************************************************/
 /*
  * authorization.                                                           *
  ****************************************************************************/
 /*

- * $Id: movewindow.c,v 1.36 2012/09/01 23:54:00 tom Exp $
+ * $Id: movewindow.c,v 1.38 2012/12/15 18:36:40 tom Exp $

  *
  * Demonstrate move functions for windows and derived windows from the curses
  * library.
  *
  * Demonstrate move functions for windows and derived windows from the curses
  * library.


@@ -79,6 +79,14 @@ static void tail_line(CONST_FMT char *fmt,...) GCC_PRINTFLIKE(1, 2);
 static unsigned num_windows;
 static FRAME *all_windows;
 
 static unsigned num_windows;
 static FRAME *all_windows;
 

+static void
+failed(const char *s)
+{
+    perror(s);
+    endwin();
+    ExitProgram(EXIT_FAILURE);
+}
+

 static void
 message(int lineno, CONST_FMT char *fmt, va_list argp)
 {
 static void
 message(int lineno, CONST_FMT char *fmt, va_list argp)
 {


@@ -210,8 +218,16 @@ selectcell(WINDOW *parent,
            res.x = ulj + j;
            return (&res);
        }
            res.x = ulj + j;
            return (&res);
        }

-       i %= si;
-       j %= sj;
+
+       if (si <= 0)
+           i = 0;
+       else
+           i %= si;
+
+       if (sj <= 0)
+           j = 0;
+       else
+           j %= sj;

 
        /*
         * If the caller can handle continuous movement, return the result.
 
        /*
         * If the caller can handle continuous movement, return the result.


@@ -305,6 +321,8 @@ add_window(WINDOW *parent, WINDOW *child)
     keypad(child, TRUE);
     if (need > have) {
        all_windows = typeRealloc(FRAME, need, all_windows);
     keypad(child, TRUE);
     if (need > have) {
        all_windows = typeRealloc(FRAME, need, all_windows);

+       if (!all_windows)
+           failed("add_window");

     }
     all_windows[num_windows].parent = parent;
     all_windows[num_windows].child = child;
     }
     all_windows[num_windows].parent = parent;
     all_windows[num_windows].child = child;