# HG changeset patch
# User hauberg
# Date 1307390668 0
# Node ID e4fb177509b9ad409a97c2efcb7776654c912833
# Parent  d9b3c55e9b6c08efc25e288ed49c56e238885528
Avoid integer overflow (from Alexander Sherikov)

diff --git a/inst/medfilt2.m b/inst/medfilt2.m
--- a/inst/medfilt2.m
+++ b/inst/medfilt2.m
@@ -58,7 +58,7 @@
   nth = floor(n/2);
   a = ordfilt2(A, nth, domain, padding);
   b = ordfilt2(A, nth + 1, domain, padding);
-  retval = (a + b)./2;
+  retval = a./2 + b./2; # split into two divisions to avoid overflow on integer data
 else
   nth = floor(n/2) + 1;
   retval = ordfilt2(A, nth, domain, padding);