ncurses 5.9 - patch 20111224

[ncurses.git] / test / ncurses.c

diff --git a/test/ncurses.c b/test/ncurses.c
index 2900034533458fc5efff503ac685f22988331f45..d5b5a63fac021f36a8c2a1bba6c395b99c148eaf 100644 (file)
--- a/test/ncurses.c
+++ b/test/ncurses.c
@@ -40,7 +40,7 @@ AUTHOR
    Author: Eric S. Raymond <esr@snark.thyrsus.com> 1993
            Thomas E. Dickey (beginning revision 1.27 in 1996).
 
-$Id: ncurses.c,v 1.367 2011/04/23 21:16:43 tom Exp $
+$Id: ncurses.c,v 1.370 2011/09/17 21:57:49 tom Exp $
 
 ***************************************************************************/
 
@@ -1394,7 +1394,7 @@ show_attr(int row, int skip, bool arrow, chtype attr, const char *name)
        if (!(termattrs() & test)) {
            printw(" (N/A)");
        } else {
-           if (ncv > 0 && (getbkgd(stdscr) & A_COLOR)) {
+           if (ncv > 0 && stdscr && (getbkgd(stdscr) & A_COLOR)) {
                static const chtype table[] =
                {
                    A_STANDOUT,
@@ -1675,8 +1675,8 @@ wide_show_attr(int row, int skip, bool arrow, chtype attr, short pair, const cha
            add_wch(&ch);
        }
     } else {
-       attr_t old_attr;
-       short old_pair;
+       attr_t old_attr = 0;
+       short old_pair = 0;
 
        (void) attr_get(&old_attr, &old_pair, 0);
        (void) attr_set(attr, pair, 0);
@@ -3360,6 +3360,7 @@ show_upper_widechars(int first, int repeat, int space, attr_t attr, short pair)
             * The repeat-count may make text wrap - avoid that.
             */
            getyx(stdscr, y, x);
+           (void) y;
            if (x >= col + (COLS / 2) - 2)
                break;
        } while (--count > 0);
@@ -4269,8 +4270,10 @@ acs_and_scroll(void)
 
                    neww->next = current ? current->next : 0;
                    neww->last = current;
-                   neww->last->next = neww;
-                   neww->next->last = neww;
+                   if (neww->last != 0)
+                       neww->last->next = neww;
+                   if (neww->next != 0)
+                       neww->next->last = neww;
 
                    neww->wind = getwin(fp);