From d98f84f9d3bfa5ef69e6741e4e36663142ad5642 Mon Sep 17 00:00:00 2001
From: Bananymous <oskari.alaranta@bananymous.com>
Date: Sat, 28 Oct 2023 22:10:33 +0300
Subject: [PATCH] BAN: Update ByteSpan API

Add ByteSpan::as_span<T> and const versions of as() and as_span()
require T to be const.
---
 BAN/include/BAN/ByteSpan.h | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/BAN/include/BAN/ByteSpan.h b/BAN/include/BAN/ByteSpan.h
index b920f6db..e86ba8f8 100644
--- a/BAN/include/BAN/ByteSpan.h
+++ b/BAN/include/BAN/ByteSpan.h
@@ -80,13 +80,30 @@ namespace BAN
 		}
 
 		template<typename S>
-		const S& as() const
+		requires(is_const_v<S>)
+		S& as() const
 		{
 			ASSERT(m_data);
 			ASSERT(m_size >= sizeof(S));
 			return *reinterpret_cast<S*>(m_data);
 		}
 
+		template<typename S>
+		requires(!CONST && !is_const_v<S>)
+		Span<S> as_span()
+		{
+			ASSERT(m_data);
+			return Span<S>(reinterpret_cast<S*>(m_data), m_size / sizeof(S));
+		}
+
+		template<typename S>
+		requires(is_const_v<S>)
+		Span<S> as_span() const
+		{
+			ASSERT(m_data);
+			return Span<S>(reinterpret_cast<S*>(m_data), m_size / sizeof(S));
+		}
+
 		ByteSpanGeneral slice(size_type offset, size_type length = size_type(-1))
 		{
 			ASSERT(m_data);