prevent int overflow when calculating buffer offsets

Signed-off-by: Peter Hillman <peterh@wetafx.co.nz>
AcademySoftwareFoundation · Jan 20, 2020 · 2c5c1ae · 2c5c1ae
1 parent 6e3d95a
commit 2c5c1ae
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/OpenEXR/IlmImf/ImfCompositeDeepScanLine.cpp b/OpenEXR/IlmImf/ImfCompositeDeepScanLine.cpp
@@ -179,7 +179,7 @@ CompositeDeepScanLine::Data::handleDeepFrameBuffer (DeepFrameBuffer& buf,
                                                     int start,
                                                     int end)
 {
-    int width=_dataWindow.size().x+1;
+    ptrdiff_t width=_dataWindow.size().x+1;
     size_t pixelcount = width * (end-start+1);
     pointers.resize(_channels.size());
     counts.resize(pixelcount);