ncurses 6.0 - patch 20170325

[ncurses.git] / include / curses.wide

diff --git a/include/curses.wide b/include/curses.wide
index 5d130a962284307ee3b2a3c524fa5fee7828d299..58ccd150bc950a2e06017e2f9cc7f4b115758f4e 100644 (file)
--- a/include/curses.wide
+++ b/include/curses.wide
@@ -1,4 +1,4 @@
-/* $Id: curses.wide,v 1.46 2014/02/01 22:00:32 tom Exp $ */
+/* $Id: curses.wide,v 1.49 2017/03/26 00:04:04 tom Exp $ */
 /*
  * vile:cmode:
  * This file is part of ncurses, designed to be appended after curses.h.in
@@ -261,7 +261,7 @@ extern NCURSES_EXPORT(int) NCURSES_SP_NAME(vid_puts) (SCREEN*, attr_t, NCURSES_P
 #define wins_wstr(w,t)                 wins_nwstr((w),(t),-1)
 
 #if !NCURSES_OPAQUE
-#define wgetbkgrnd(win,wch)            ((win) ? (*(wch) = (win)->_bkgrnd) : *(wch), OK)
+#define wgetbkgrnd(win,wch)            ((0 != (const void*)(wch)) ? ((win) ? (*(wch) = (win)->_bkgrnd) : *(wch), OK) : ERR)
 #endif
 
 #define mvadd_wch(y,x,c)               mvwadd_wch(stdscr,(y),(x),(c))