From bb4d31747aedb4c3fb21faff02bf15be79381d62 Mon Sep 17 00:00:00 2001
From: Patrick Wuttke <mewin@mewin.de>
Date: Sat, 16 Dec 2023 10:25:58 +0100
Subject: [PATCH] Added function to convert StrideSpan to regular span, if
 possible.

---
 source/mijin/container/stride_span.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/source/mijin/container/stride_span.hpp b/source/mijin/container/stride_span.hpp
index 87770ca..6ee5435 100644
--- a/source/mijin/container/stride_span.hpp
+++ b/source/mijin/container/stride_span.hpp
@@ -119,6 +119,7 @@ public:
 
     constexpr operator bool() const noexcept { return !empty(); }
     constexpr bool operator!() const noexcept { return empty(); }
+    explicit operator std::span<T>() const noexcept;
 
     reference operator[](size_type index);
     const_reference operator[](size_type index) const;
@@ -138,6 +139,13 @@ public:
 // public functions
 //
 
+template<typename T>
+StrideSpan<T>::operator std::span<T>() const noexcept
+{
+    MIJIN_ASSERT(strideBytes_ == sizeof(T), "Can't convert to regular span if stride isn't exactly size of type.");
+    return {&*begin_, &*end_};
+}
+
 template<typename T>
 StrideSpanIterator<T>& StrideSpanIterator<T>::operator+=(difference_type diff)
 {