From 7a9c6c4a66530d62f22aaff87c1d83b7035db738 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaigan=C3=A9sh=20Kumaran?= <jaiganesh.kumaran@outlook.com>
Date: Wed, 12 Jul 2023 21:10:00 +0530
Subject: [PATCH] Implicit conversion between std::span and winrt::array_view

---
 strings/base_array.h    | 10 ++++++++++
 strings/base_includes.h |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/strings/base_array.h b/strings/base_array.h
index 9f20cf34e..e74104074 100644
--- a/strings/base_array.h
+++ b/strings/base_array.h
@@ -31,6 +31,16 @@ WINRT_EXPORT namespace winrt
             array_view(value.begin(), static_cast<size_type>(value.size()))
         {}
 
+#ifdef __cpp_lib_span
+        template <typename T>
+        array_view(std::span<T> span) : array_view(span.data(), static_cast<size_t>(span.size())) {}
+
+        operator std::span<T>() const noexcept
+        {
+            return { m_data, m_size };
+        }
+#endif
+
         template <typename C, size_type N>
         array_view(C(&value)[N]) noexcept :
             array_view(value, N)
diff --git a/strings/base_includes.h b/strings/base_includes.h
index 54edca841..ee22bc0aa 100644
--- a/strings/base_includes.h
+++ b/strings/base_includes.h
@@ -34,6 +34,10 @@
 #include <ostream>
 #endif
 
+#ifdef __cpp_lib_span
+#include <span>
+#endif
+
 #ifdef __cpp_lib_format
 #include <format>
 #endif