From 5c95baf609901f12131a7da5e5a9bc71ca116991 Mon Sep 17 00:00:00 2001
From: Tobias Hienzsch <post@tobias-hienzsch.de>
Date: Wed, 21 Feb 2024 17:33:30 +0100
Subject: [PATCH] Upgrade tetl

---
 3rd_party/tetl                         |  2 +-
 lib/CMakeLists.txt                     |  1 -
 lib/grit/core/mdspan.hpp               | 18 ------------------
 lib/grit/fft/bitrevorder.hpp           |  2 +-
 lib/grit/fft/fft.hpp                   |  1 -
 lib/grit/math/buffer_interpolation.hpp |  4 +++-
 6 files changed, 5 insertions(+), 23 deletions(-)
 delete mode 100644 lib/grit/core/mdspan.hpp

diff --git a/3rd_party/tetl b/3rd_party/tetl
index 621891b..97bb5b1 160000
--- a/3rd_party/tetl
+++ b/3rd_party/tetl
@@ -1 +1 @@
-Subproject commit 621891b9f7f0d2e3f59555a32146f8b552d5d84f
+Subproject commit 97bb5b14787ba2fec870bbd8e327e372b09b9dbd
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 61e9e92..2f17ee3 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -74,7 +74,6 @@ target_sources(gritwave-grit INTERFACE
         "grit/core/arm.hpp"
         "grit/core/benchmark.hpp"
         "grit/core/config.hpp"
-        "grit/core/mdspan.hpp"
 
         "grit/fft.hpp"
         "grit/fft/bitrevorder.hpp"
diff --git a/lib/grit/core/mdspan.hpp b/lib/grit/core/mdspan.hpp
deleted file mode 100644
index 5d2ba6e..0000000
--- a/lib/grit/core/mdspan.hpp
+++ /dev/null
@@ -1,18 +0,0 @@
-#pragma once
-
-#include <etl/linalg.hpp>
-#include <etl/mdspan.hpp>
-
-namespace etl::linalg {
-using etl::linalg::detail::in_vector;
-using etl::linalg::detail::inout_vector;
-using etl::linalg::detail::out_vector;
-
-using etl::linalg::detail::in_matrix;
-using etl::linalg::detail::inout_matrix;
-using etl::linalg::detail::out_matrix;
-
-using etl::linalg::detail::in_object;
-using etl::linalg::detail::inout_object;
-using etl::linalg::detail::out_object;
-}  // namespace etl::linalg
diff --git a/lib/grit/fft/bitrevorder.hpp b/lib/grit/fft/bitrevorder.hpp
index 7512993..9947197 100644
--- a/lib/grit/fft/bitrevorder.hpp
+++ b/lib/grit/fft/bitrevorder.hpp
@@ -1,12 +1,12 @@
 #pragma once
 
-#include <grit/core/mdspan.hpp>
 #include <grit/math/ilog2.hpp>
 
 #include <etl/array.hpp>
 #include <etl/bit.hpp>
 #include <etl/concepts.hpp>
 #include <etl/cstddef.hpp>
+#include <etl/linalg.hpp>
 #include <etl/type_traits.hpp>
 #include <etl/utility.hpp>
 
diff --git a/lib/grit/fft/fft.hpp b/lib/grit/fft/fft.hpp
index 817a399..2c89eb4 100644
--- a/lib/grit/fft/fft.hpp
+++ b/lib/grit/fft/fft.hpp
@@ -1,6 +1,5 @@
 #pragma once
 
-#include <grit/core/mdspan.hpp>
 #include <grit/fft/bitrevorder.hpp>
 #include <grit/fft/direction.hpp>
 #include <grit/math/ilog2.hpp>
diff --git a/lib/grit/math/buffer_interpolation.hpp b/lib/grit/math/buffer_interpolation.hpp
index f9f0cdc..9b554d0 100644
--- a/lib/grit/math/buffer_interpolation.hpp
+++ b/lib/grit/math/buffer_interpolation.hpp
@@ -1,9 +1,11 @@
 #pragma once
 
-#include <grit/core/mdspan.hpp>
 #include <grit/math/hermite_interpolation.hpp>
 #include <grit/math/linear_interpolation.hpp>
 
+#include <etl/linalg.hpp>
+#include <etl/mdspan.hpp>
+
 namespace grit {
 
 /// \ingroup grit-math