From 847a25490c6515c91edd2dc5bc13731b47af950b Mon Sep 17 00:00:00 2001
From: fabienfl <fabien.fl-orc@ssi.gouv.fr>
Date: Tue, 15 Dec 2020 15:35:59 +0100
Subject: [PATCH] OrcLib: Utils: Result: add ToOptional(Result&)

---
 src/OrcLib/Utils/Result.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/OrcLib/Utils/Result.h b/src/OrcLib/Utils/Result.h
index a6ec4c45..960c83f9 100644
--- a/src/OrcLib/Utils/Result.h
+++ b/src/OrcLib/Utils/Result.h
@@ -7,6 +7,8 @@
 //
 #pragma once
 
+#include <optional>
+
 #include <boost/outcome/outcome.hpp>
 
 namespace Orc {
@@ -26,6 +28,17 @@ const T& operator*(const Result<T>& result)
     return result.value();
 }
 
+template <typename T>
+std::optional<T> ToOptional(const Orc::Result<T>& result)
+{
+    if (result.has_value())
+    {
+        return result.value();
+    }
+
+    return {};
+}
+
 inline std::error_code SystemError(HRESULT hr)
 {
     return {hr, std::system_category()};