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1 /****************************************************************************
2  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
3  *                                                                          *
4  * Permission is hereby granted, free of charge, to any person obtaining a  *
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6  * "Software"), to deal in the Software without restriction, including      *
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8  * distribute, distribute with modifications, sublicense, and/or sell       *
9  * copies of the Software, and to permit persons to whom the Software is    *
10  * furnished to do so, subject to the following conditions:                 *
11  *                                                                          *
12  * The above copyright notice and this permission notice shall be included  *
13  * in all copies or substantial portions of the Software.                   *
14  *                                                                          *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22  *                                                                          *
23  * Except as contained in this notice, the name(s) of the above copyright   *
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27  ****************************************************************************/
28
29 /****************************************************************************
30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32  ****************************************************************************/
33
34 /*
35 **      lib_delch.c
36 **
37 **      The routine wdelch().
38 **
39 */
40
41 #include <curses.priv.h>
42
43 MODULE_ID("$Id: lib_delch.c,v 1.7 1998/02/11 12:13:53 tom Exp $")
44
45 int wdelch(WINDOW *win)
46 {
47 int     code = ERR;
48 chtype  *temp1, *temp2;
49 chtype  *end;
50 chtype  blank = _nc_background(win);
51
52         T((T_CALLED("wdelch(%p)"), win));
53
54         if (win) {
55           end = &win->_line[win->_cury].text[win->_maxx];
56           temp2 = &win->_line[win->_cury].text[win->_curx + 1];
57           temp1 = temp2 - 1;
58           
59           while (temp1 < end)
60             *temp1++ = *temp2++;
61           
62           *temp1 = blank;
63           
64           win->_line[win->_cury].lastchar = win->_maxx;
65           
66           if (win->_line[win->_cury].firstchar == _NOCHANGE
67               || win->_line[win->_cury].firstchar > win->_curx)
68             win->_line[win->_cury].firstchar = win->_curx;
69           
70           _nc_synchook(win);
71           code = OK;
72         }
73         returnCode(code);
74 }