From f16b2e59aed61dcbb6374a3a609334532b6ca454 Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Fri, 26 Jan 2018 11:53:04 +0100
Subject: [PATCH] Fix set_unset_bitmap_value

---
 src/ifcparse/IfcHdf5File.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ifcparse/IfcHdf5File.cpp b/src/ifcparse/IfcHdf5File.cpp
index 5d63acce9e..e62bc63307 100644
--- a/src/ifcparse/IfcHdf5File.cpp
+++ b/src/ifcparse/IfcHdf5File.cpp
@@ -733,9 +733,9 @@ void IfcParse::IfcHdf5File::write_instance(void*& ptr, T& visitor, H5::DataType&
 
 			Argument* attr = v->data().getArgument(ifc_attr_idx);
 			if (!attr->isNull()) {
-				// TODO: This is now index in IFC-attributes list, specify
-				set_unset_bitmap_value |= (1 << (ifc_hdf5_idx++));
+				set_unset_bitmap_value |= (1 << ifc_hdf5_idx);
 			}
+			ifc_hdf5_idx ++;
 			write_visit_instance_attribute/*<typename T::locator_type>*/ attribute_visitor(ptr, visitor, attr_type);
 			apply_attribute_visitor(attr, attributes[ifc_attr_idx]).apply(attribute_visitor);
 		}