/*
- * $Id: curses.priv.h,v 1.447 2010/01/16 21:32:59 tom Exp $
+ * $Id: curses.priv.h,v 1.450 2010/01/23 22:05:30 tom Exp $
*
* curses.priv.h
*
#define MODULE_ID(id) /*nothing*/
#endif
+#include <stddef.h> /* for offsetof */
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
extern NCURSES_EXPORT_VAR(SIG_ATOMIC_T) _nc_have_sigwinch;
WINDOWLIST {
- WINDOW win; /* first, so WINDOW_EXT() works */
WINDOWLIST *next;
SCREEN *screen; /* screen containing the window */
+ WINDOW win; /* WINDOW_EXT() needs to account for offset */
#ifdef _XOPEN_SOURCE_EXTENDED
char addch_work[(MB_LEN_MAX * 9) + 1];
unsigned addch_used; /* number of bytes in addch_work[] */
#endif
};
-#define WINDOW_EXT(win,field) (((WINDOWLIST *)(win))->field)
+#define WINDOW_EXT(w,m) (((WINDOWLIST *)((char *)(w) - offsetof(WINDOWLIST, win)))->m)
#define SP_PRE_INIT(sp) \
sp->_cursrow = -1; \