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 #pragma ident "%Z%%M% %I% %E% SMI"
16
17 /*LINTLIBRARY*/
18
19 #ifndef lint
20 static char
21 sccsid[] = "@(#)clrtobot.c 1.7 88/02/08 SMI"; /* from UCB 5.2 85/10/24 */
22 #endif /* not lint */
23
24 #include <stddef.h>
25 #include "curses.ext"
26
27 /*
28 * This routine erases everything on the window.
29 */
30
31 int
wclrtobot(WINDOW * win)32 wclrtobot(WINDOW *win)
33 {
34 int y;
35 char *sp, *end, *maxx;
36 int startx;
37 ptrdiff_t minx;
38
39 startx = win->_curx;
40 for (y = win->_cury; y < win->_maxy; y++) {
41 minx = _NOCHANGE;
42 end = &win->_y[y][win->_maxx];
43 for (sp = &win->_y[y][startx]; sp < end; sp++)
44 if (*sp != ' ') {
45 maxx = sp;
46 if (minx == _NOCHANGE)
47 minx = sp - win->_y[y];
48 *sp = ' ';
49 }
50 if (minx != _NOCHANGE)
51 (void) touchline(win, y, (int)minx,
52 (int)(maxx - &win->_y[y][0]));
53 startx = 0;
54 }
55 return (OK);
56 }
57