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Annotation of coherent/d/usr/lib/libcurses/delwin.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1981 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms are permitted
        !             6:  * provided that the above copyright notice and this paragraph are
        !             7:  * duplicated in all such forms and that any documentation,
        !             8:  * advertising materials, and other materials related to such
        !             9:  * distribution and use acknowledge that the software was developed
        !            10:  * by the University of California, Berkeley.  The name of the
        !            11:  * University may not be used to endorse or promote products derived
        !            12:  * from this software without specific prior written permission.
        !            13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            16:  */
        !            17: 
        !            18: #ifndef COHERENT
        !            19: #ifndef lint
        !            20: static uchar sccsid[] = "@(#)delwin.c  5.3 (Berkeley) 6/30/88";
        !            21: #endif /* not lint */
        !            22: #endif /* not COHERENT */
        !            23: 
        !            24: # include      "curses.ext"
        !            25: 
        !            26: /*
        !            27:  *     This routine deletes a window and releases it back to the system.
        !            28:  *
        !            29:  */
        !            30: delwin(win)
        !            31: reg WINDOW     *win; {
        !            32: 
        !            33:        reg int         i;
        !            34:        reg WINDOW      *wp, *np;
        !            35: 
        !            36:        if (win->_orig == NULL) {
        !            37:                /*
        !            38:                 * If we are the original window, delete the space for
        !            39:                 * all the subwindows, and the array of space as well.
        !            40:                 */
        !            41:                for (i = 0; i < win->_maxy && win->_y[i]; i++)
        !            42:                        free(win->_y[i]);
        !            43:                free(win->_firstch);
        !            44:                free(win->_lastch);
        !            45:                wp = win->_nextp;
        !            46:                while (wp != win) {
        !            47:                        np = wp->_nextp;
        !            48:                        delwin(wp);
        !            49:                        wp = np;
        !            50:                }
        !            51:        }
        !            52:        else {
        !            53:                /*
        !            54:                 * If we are a subwindow, take ourselves out of the
        !            55:                 * list.  NOTE: if we are a subwindow, the minimum list
        !            56:                 * is orig followed by this subwindow, so there are
        !            57:                 * always at least two windows in the list.
        !            58:                 */
        !            59:                for (wp = win->_nextp; wp->_nextp != win; wp = wp->_nextp)
        !            60:                        continue;
        !            61:                wp->_nextp = win->_nextp;
        !            62:        }
        !            63:        free(win->_y);
        !            64:        free(win);
        !            65: }

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