1 /****************************************************************************
2 * Copyright 2020 Thomas E. Dickey *
3 * Copyright 1998-2001,2009 Free Software Foundation, Inc. *
4 * *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
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9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
12 * *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
15 * *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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28 ****************************************************************************/
29
30 /****************************************************************************
31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
32 * and: Eric S. Raymond <esr@snark.thyrsus.com> *
33 ****************************************************************************/
34
35 /*
36 ** lib_delch.c
37 **
38 ** The routine wdelch().
39 **
40 */
41
42 #include <curses.priv.h>
43
44 MODULE_ID("$Id: lib_delch.c,v 1.14 2020/02/02 23:34:34 tom Exp $")
45
NCURSES_EXPORT(int)46 NCURSES_EXPORT(int)
47 wdelch(WINDOW *win)
48 {
49 int code = ERR;
50
51 T((T_CALLED("wdelch(%p)"), (void *) win));
52
53 if (win) {
54 NCURSES_CH_T blank = win->_nc_bkgd;
55 struct ldat *line = &(win->_line[win->_cury]);
56 NCURSES_CH_T *end = &(line->text[win->_maxx]);
57 NCURSES_CH_T *temp2 = &(line->text[win->_curx + 1]);
58 NCURSES_CH_T *temp1 = temp2 - 1;
59
60 CHANGED_TO_EOL(line, win->_curx, win->_maxx);
61 while (temp1 < end)
62 *temp1++ = *temp2++;
63
64 *temp1 = blank;
65
66 _nc_synchook(win);
67 code = OK;
68 }
69 returnCode(code);
70 }
71