Added functions to allow constructing memory views from a pointer range

1 files changed, 26 insertions, 2 deletions

diff --git a/zencore/include/zencore/memory.h b/zencore/include/zencore/memory.h
index 1c681872b..ec945c07c 100644
--- a/zencore/include/zencore/memory.h
+++ b/zencore/include/zencore/memory.h
@@ -72,6 +72,12 @@ struct MutableMemoryView
 	{
 	}
 
+	MutableMemoryView(void* DataPtr, void* DataEndPtr)
+	: m_Data(reinterpret_cast<uint8_t*>(DataPtr))
+	, m_DataEnd(reinterpret_cast<uint8_t*>(DataEndPtr))
+	{
+	}
+
 	inline bool IsEmpty() const { return m_Data == m_DataEnd; }
 	void*		GetData() const { return m_Data; }
 	void*		GetDataEnd() const { return m_DataEnd; }
@@ -144,6 +150,8 @@ private:
 	inline constexpr uint8_t* GetDataAtOffsetNoCheck(uint64_t InOffset) const { return m_Data + InOffset; }
 };
 
+//////////////////////////////////////////////////////////////////////////
+
 struct MemoryView
 {
 	MemoryView() = default;
@@ -318,8 +326,16 @@ MakeMemoryView(const R& Container)
 	return MemoryView(Span.data(), Span.size() * sizeof(decltype(Span)::element_type));
 }
 
+/** Make a non-owning const view starting at Data and ending at DataEnd. */
+
+[[nodiscard]] inline MemoryView
+MakeMemoryView(const void* Data, const void* DataEnd)
+{
+	return MemoryView(Data, DataEnd);
+}
+
 /**
- * Make a non-owning view of the memory of the initializer list.
+ * Make a non-owning mutable view of the memory of the initializer list.
  *
  * This overload is only available when the element type does not need to be deduced.
  */
@@ -330,7 +346,7 @@ MakeMutableMemoryView(std::initializer_list<typename std::type_identity<T>::type
 	return MutableMemoryView(List.begin(), List.size() * sizeof(T));
 }
 
-/** Make a non-owning view of the memory of the contiguous container. */
+/** Make a non-owning mutable view of the memory of the contiguous container. */
 template<std::ranges::contiguous_range R>
 [[nodiscard]] constexpr inline MutableMemoryView
 MakeMutableMemoryView(R& Container)
@@ -339,6 +355,14 @@ MakeMutableMemoryView(R& Container)
 	return MutableMemoryView(Span.data(), Span.size() * sizeof(decltype(Span)::element_type));
 }
 
+/** Make a non-owning mutable view starting at Data and ending at DataEnd. */
+
+[[nodiscard]] inline MutableMemoryView
+MakeMutableMemoryView(void* Data, void* DataEnd)
+{
+	return MutableMemoryView(Data, DataEnd);
+}
+
 void memory_forcelink();  // internal
 
 }  // namespace zen