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Annotation of 42BSD/usr.lib/libcurses/delwin.c, revision 1.1

1.1     ! root        1: # include      "curses.ext"
        !             2: 
        !             3: /*
        !             4:  *     This routine deletes a window and releases it back to the system.
        !             5:  *
        !             6:  * 4/6/83 (Berkeley) @(#)delwin.c      1.5
        !             7:  */
        !             8: delwin(win)
        !             9: reg WINDOW     *win; {
        !            10: 
        !            11:        reg int         i;
        !            12:        reg WINDOW      *wp, *np;
        !            13: 
        !            14:        if (win->_orig == NULL) {
        !            15:                /*
        !            16:                 * If we are the original window, delete the space for
        !            17:                 * all the subwindows, and the array of space as well.
        !            18:                 */
        !            19:                for (i = 0; i < win->_maxy && win->_y[i]; i++)
        !            20:                        cfree(win->_y[i]);
        !            21:                wp = win->_nextp;
        !            22:                while (wp != win) {
        !            23:                        np = wp->_nextp;
        !            24:                        delwin(wp);
        !            25:                        wp = np;
        !            26:                }
        !            27:        }
        !            28:        else {
        !            29:                /*
        !            30:                 * If we are a subwindow, take ourself out of the
        !            31:                 * list.  NOTE: if we are a subwindow, the minimum list
        !            32:                 * is orig followed by this subwindow, so there are
        !            33:                 * always at least two windows in the list.
        !            34:                 */
        !            35:                for (wp = win->_nextp; wp->_nextp != win; wp = wp->_nextp)
        !            36:                        continue;
        !            37:                wp->_nextp = win->_nextp;
        !            38:        }
        !            39:        cfree(win->_y);
        !            40:        cfree(win->_firstch);
        !            41:        cfree(win->_lastch);
        !            42:        cfree(win);
        !            43: }

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