From b17f6be0700db52751d5eef605731d69fe5e6757 Mon Sep 17 00:00:00 2001
From: Ken Arnold <arnold@ucbvax.Berkeley.EDU>
Date: Tue, 27 Jan 1981 01:03:07 -0800
Subject: [PATCH] date and time created 81/01/26 17:03:07 by arnold

SCCS-vsn: lib/libcurses/overwrite.c 1.1
---
 usr/src/lib/libcurses/overwrite.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 usr/src/lib/libcurses/overwrite.c

diff --git a/usr/src/lib/libcurses/overwrite.c b/usr/src/lib/libcurses/overwrite.c
new file mode 100644
index 0000000000..af8fecbeb4
--- /dev/null
+++ b/usr/src/lib/libcurses/overwrite.c
@@ -0,0 +1,28 @@
+# include	"curses.h"
+
+# define	min(a,b)	(a < b ? a : b)
+
+/*
+ *	This routine writes win1 on win2 destructively.
+ *
+ * %G% (Berkeley) @(#)overwrite.c	1.1
+ */
+overwrite(win1, win2)
+reg WINDOW	*win1, *win2; {
+
+	reg int		x, y, minx, miny, starty;
+
+# ifdef DEBUG
+	fprintf(outf, "OVERWRITE(0%o, 0%o);\n", win1, win2);
+# endif
+	miny = min(win1->_maxy, win2->_maxy);
+	minx = min(win1->_maxx, win2->_maxx);
+# ifdef DEBUG
+	fprintf(outf, "OVERWRITE:\tminx = %d,  miny = %d\n", minx, miny);
+# endif
+	starty = win1->_begy - win2->_begy;
+	for (y = 0; y < miny; y++)
+		if (wmove(win2, y + starty, 0) != ERR)
+			for (x = 0; x < minx; x++)
+				waddch(win2, win1->_y[y][x]);
+}
-- 
2.20.1