1 /*
2 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 */
5
6 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
7 /* All Rights Reserved */
8
9 /*
10 * Copyright (c) 1980 Regents of the University of California.
11 * All rights reserved. The Berkeley software License Agreement
12 * specifies the terms and conditions for redistribution.
13 */
14
15 /*LINTLIBRARY*/
16
17 #ifndef lint
18 static char
19 sccsid[] = "@(#)clrtobot.c 1.7 88/02/08 SMI"; /* from UCB 5.2 85/10/24 */
20 #endif /* not lint */
21
22 #include <stddef.h>
23 #include "curses.ext"
24
25 /*
26 * This routine erases everything on the window.
27 */
28
29 int
wclrtobot(WINDOW * win)30 wclrtobot(WINDOW *win)
31 {
32 int y;
33 char *sp, *end, *maxx;
34 int startx;
35 ptrdiff_t minx;
36
37 startx = win->_curx;
38 for (y = win->_cury; y < win->_maxy; y++) {
39 minx = _NOCHANGE;
40 end = &win->_y[y][win->_maxx];
41 for (sp = &win->_y[y][startx]; sp < end; sp++)
42 if (*sp != ' ') {
43 maxx = sp;
44 if (minx == _NOCHANGE)
45 minx = sp - win->_y[y];
46 *sp = ' ';
47 }
48 if (minx != _NOCHANGE)
49 (void) touchline(win, y, (int)minx,
50 (int)(maxx - &win->_y[y][0]));
51 startx = 0;
52 }
53 return (OK);
54 }
55