X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fbase%2Flib_redrawln.c;fp=ncurses%2Flib_redrawln.c;h=10fda917984e38c520c101a55c82194953a5130b;hp=adcdf73632f6ff5702c077349bcc6178c9483a74;hb=refs%2Ftags%2Fv5.0;hpb=661078ddbde3ce0f3b06e95642fbb9b5fef7dca1

diff --git a/ncurses/lib_redrawln.c b/ncurses/base/lib_redrawln.c
similarity index 80%
rename from ncurses/lib_redrawln.c
rename to ncurses/base/lib_redrawln.c
index adcdf736..10fda917 100644
--- a/ncurses/lib_redrawln.c
+++ b/ncurses/base/lib_redrawln.c
@@ -39,29 +39,31 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_redrawln.c,v 1.2 1998/02/11 12:13:57 tom Exp $")
+MODULE_ID("$Id: lib_redrawln.c,v 1.7 1998/09/19 20:09:50 Alexander.V.Lukyanov Exp $")
 
 int wredrawln(WINDOW *win, int beg, int num)
 {
-int i;
+	int i;
+	int end;
+	size_t len = (win->_maxx + 1) * sizeof(chtype);
 
 	T((T_CALLED("wredrawln(%p,%d,%d)"), win, beg, num));
 
-	if (touchline(win, beg, num) == OK) {
-		size_t len = win->_maxx * sizeof(chtype);
+	if (beg < 0)
+		beg = 0;
 
-		/*
-		 * XSI says that wredrawln() tells the library not to base
-		 * optimization on the contents of the lines that are marked.
-		 * We do that by changing the contents to nulls after touching
-		 * the corresponding lines to get the optimizer's attention.
-		 *
-		 * FIXME: this won't work if the application makes further
-		 * updates before the next refresh.
-		 */
-		for (i = beg; (i < beg + num) && (i < win->_maxy); i++) {
-			memset(win->_line[i].text, 0, len);
-		}
+	if (touchline (win, beg, num) == ERR)
+		returnCode(ERR);
+
+	end = beg + num;
+	if (end > win->_maxy + 1)
+		end = win->_maxy + 1;
+
+	for (i = beg; i < end; i++)
+	{
+		memset (curscr->_line[i+win->_begy].text+win->_begx, 0, len);
+		_nc_make_oldhash(i+win->_begy);
 	}
+
 	returnCode(OK);
 }