xref: /original-bsd/lib/libcurses/delch.c (revision 6c57d260)
1 # include	"curses.ext"
2 
3 /*
4  *	This routine performs an insert-char on the line, leaving
5  * (_cury,_curx) unchanged.
6  *
7  * @(#)delch.c	1.2 (Berkeley) 05/11/81
8  */
9 wdelch(win)
10 reg WINDOW	*win; {
11 
12 	reg char	*temp1, *temp2;
13 	reg char	*end;
14 
15 	end = &win->_y[win->_cury][win->_maxx - 1];
16 	temp1 = &win->_y[win->_cury][win->_curx];
17 	temp2 = temp1 + 1;
18 	while (temp1 < end)
19 		*temp1++ = *temp2++;
20 	*temp1 = ' ';
21 	win->_lastch[win->_cury] = win->_maxx - 1;
22 	if (win->_firstch[win->_cury] == _NOCHANGE ||
23 	    win->_firstch[win->_cury] > win->_curx)
24 		win->_firstch[win->_cury] = win->_curx;
25 	return OK;
26 }
27