X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_redrawln.c;h=c99d6992a2a9e8da59e7fd12b62883566f15d3ee;hp=17f00ca85b425ba10b968be0720ede307e096bd6;hb=7f4b9f390624835ceb0849965a7f6ff2dcb39d00;hpb=3a0d9d27e0cf115ff9dcc6163c251bccaa62bd7d

diff --git a/ncurses/base/lib_redrawln.c b/ncurses/base/lib_redrawln.c
index 17f00ca8..c99d6992 100644
--- a/ncurses/base/lib_redrawln.c
+++ b/ncurses/base/lib_redrawln.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 1998-2007,2009 Free Software Foundation, Inc.              *
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -39,7 +40,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_redrawln.c,v 1.14 2009/10/24 22:08:32 tom Exp $")
+MODULE_ID("$Id: lib_redrawln.c,v 1.18 2020/02/02 23:34:34 tom Exp $")
 
 NCURSES_EXPORT(int)
 wredrawln(WINDOW *win, int beg, int num)
@@ -62,24 +63,24 @@ wredrawln(WINDOW *win, int beg, int num)
     if (touchline(win, beg, num) == ERR)
 	returnCode(ERR);
 
-    if (touchline(sp->_curscr, beg + win->_begy, num) == ERR)
+    if (touchline(CurScreen(sp), beg + win->_begy, num) == ERR)
 	returnCode(ERR);
 
     end = beg + num;
-    if (end > sp->_curscr->_maxy + 1)
-	end = sp->_curscr->_maxy + 1;
+    if (end > CurScreen(sp)->_maxy + 1 - win->_begy)
+	end = CurScreen(sp)->_maxy + 1 - win->_begy;
     if (end > win->_maxy + 1)
 	end = win->_maxy + 1;
 
-    len = (win->_maxx + 1);
-    if (len > (size_t) (sp->_curscr->_maxx + 1))
-	len = (size_t) (sp->_curscr->_maxx + 1);
-    len *= sizeof(sp->_curscr->_line[0].text[0]);
+    len = (size_t) (win->_maxx + 1);
+    if (len > (size_t) (CurScreen(sp)->_maxx + 1 - win->_begx))
+	len = (size_t) (CurScreen(sp)->_maxx + 1 - win->_begx);
+    len *= sizeof(CurScreen(sp)->_line[0].text[0]);
 
     for (i = beg; i < end; i++) {
 	int crow = i + win->_begy;
 
-	memset(sp->_curscr->_line[crow].text + win->_begx, 0, len);
+	memset(CurScreen(sp)->_line[crow].text + win->_begx, 0, len);
 	NCURSES_SP_NAME(_nc_make_oldhash) (NCURSES_SP_ARGx crow);
     }