/***************************************************************************
*                            COPYRIGHT NOTICE                              *
****************************************************************************
*                ncurses is copyright (C) 1992-1995                        *
*                          Zeyd M. Ben-Halim                               *
*                          zmbenhal@netcom.com                             *
*                          Eric S. Raymond                                 *
*                          esr@snark.thyrsus.com                           *
*                                                                          *
*        Permission is hereby granted to reproduce and distribute ncurses  *
*        by any means and for any fee, whether alone or as part of a       *
*        larger distribution, in source or in binary form, PROVIDED        *
*        this notice is included with any such distribution, and is not    *
*        removed from any of its header files. Mention of ncurses in any   *
*        applications linked with it is highly appreciated.                *
*                                                                          *
*        ncurses comes AS IS with no warranty, implied or expressed.       *
*                                                                          *
***************************************************************************/

/*
**	lib_insdel.c
**
**	The routine winsdelln(win, n).
**  positive n insert n lines above current line
**  negative n delete n lines starting from current line
**
*/

#include <curses.priv.h>

MODULE_ID("$Id")

int
winsdelln(WINDOW *win, int n)
{
	T((T_CALLED("winsdel(%p,%d)"), win, n));

	if (n == 0)
		returnCode(OK);

	_nc_scroll_window(win, -n, win->_cury, win->_maxy);
	touchline(win, win->_cury, win->_maxy - win->_cury + 1);

	_nc_synchook(win);
	returnCode(OK);
}