From 8a7016c13541b6f6ebb9371f1899cd530350893e Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Sat, 7 Aug 2021 10:41:00 +0200
Subject: [PATCH] update parse example for optional<double>

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

diff --git a/src/examples/IfcParseExamples.cpp b/src/examples/IfcParseExamples.cpp
index 15807a35cc..c5eedae235 100644
--- a/src/examples/IfcParseExamples.cpp
+++ b/src/examples/IfcParseExamples.cpp
@@ -71,8 +71,8 @@ int main(int argc, char** argv) {
 		
 		const IfcSchema::IfcWindow* window;
 		if ((window = element->as<IfcSchema::IfcWindow>()) != 0) {
-			if (window->hasOverallWidth() && window->hasOverallHeight()) {
-				const double area = window->OverallWidth()*window->OverallHeight();
+			if (window->OverallWidth() && window->OverallHeight()) {
+				const double area = *window->OverallWidth() * *window->OverallHeight();
 				std::cout << "The area of this window is " << area << std::endl;
 			}
 		}