delete spurious debug abort()

[unix-history] / usr / src / lib / libcurses / delwin.c

# include       "curses.ext"

/*
*      This routine deletes a window and releases it back to the system.
*
* %G% (Berkeley) @(#)delwin.c  1.5
*/
delwin(win)
reg WINDOW      *win; {

       reg int         i;
       reg WINDOW      *wp, *np;

       if (win->_orig == NULL) {
               /*
                * If we are the original window, delete the space for
                * all the subwindows, and the array of space as well.
                */
               for (i = 0; i < win->_maxy && win->_y[i]; i++)
                       cfree(win->_y[i]);
               wp = win->_nextp;
               while (wp != win) {
                       np = wp->_nextp;
                       delwin(wp);
                       wp = np;
               }
       }
       else {
               /*
                * If we are a subwindow, take ourself out of the
                * list.  NOTE: if we are a subwindow, the minimum list
                * is orig followed by this subwindow, so there are
                * always at least two windows in the list.
                */
               for (wp = win->_nextp; wp->_nextp != win; wp = wp->_nextp)
                       continue;
               wp->_nextp = win->_nextp;
       }
       cfree(win->_y);
       cfree(win->_firstch);
       cfree(win->_lastch);
       cfree(win);
}