release/src/router/libncurses/ncurses/base/lib_delch.c

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  28
  29 /****************************************************************************
  30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
  32  ****************************************************************************/
  33
  34 /*
  35 **      lib_delch.c
  36 **
  37 **      The routine wdelch().
  38 **
  39 */
  40
  41 #include <curses.priv.h>
  42
  43 MODULE_ID("$Id: lib_delch.c,v 1.13 2009/10/24 22:32:47 tom Exp $")
  44
  45 NCURSES_EXPORT(int)
  46 wdelch(WINDOW *win)
  47 {
  48     int code = ERR;
  49
  50     T((T_CALLED("wdelch(%p)"), (void *) win));
  51
  52     if (win) {
  53         NCURSES_CH_T blank = win->_nc_bkgd;
  54         struct ldat *line = &(win->_line[win->_cury]);
  55         NCURSES_CH_T *end = &(line->text[win->_maxx]);
  56         NCURSES_CH_T *temp2 = &(line->text[win->_curx + 1]);
  57         NCURSES_CH_T *temp1 = temp2 - 1;
  58
  59         CHANGED_TO_EOL(line, win->_curx, win->_maxx);
  60         while (temp1 < end)
  61             *temp1++ = *temp2++;
  62
  63         *temp1 = blank;
  64
  65         _nc_synchook(win);
  66         code = OK;
  67     }
  68     returnCode(code);
  69 }