clrtobot.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#ifndef lint
static char
sccsid[] = "@(#)clrtobot.c 1.7 88/02/08 SMI"; /* from UCB 5.2 85/10/24 */
#endif /* not lint */
#include <stddef.h>
#include "curses.ext"
/*
* This routine erases everything on the window.
*/
int
wclrtobot(WINDOW *win)
{
int y;
char *sp, *end, *maxx;
int startx;
ptrdiff_t minx;
startx = win->_curx;
for (y = win->_cury; y < win->_maxy; y++) {
minx = _NOCHANGE;
end = &win->_y[y][win->_maxx];
for (sp = &win->_y[y][startx]; sp < end; sp++)
if (*sp != ' ') {
maxx = sp;
if (minx == _NOCHANGE)
minx = sp - win->_y[y];
*sp = ' ';
}
if (minx != _NOCHANGE)
(void) touchline(win, y, (int)minx,
(int)(maxx - &win->_y[y][0]));
startx = 0;
}
return (OK);
}