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.                               *
23 *                                                                          *
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25 * holders shall not be used in advertising or otherwise to promote the     *
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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
44MODULE_ID("$Id: lib_delch.c,v 1.14 2020/02/02 23:34:34 tom Exp $")
45
46NCURSES_EXPORT(int)
47wdelch(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