From 51f4f6c8c7284da50d5334021b011343c4d35928 Mon Sep 17 00:00:00 2001
From: Katharine Hyatt <kslimes@gmail.com>
Date: Fri, 7 Aug 2026 17:30:03 +0200
Subject: [PATCH] Add a FiniteDifferences extension

---
 Project.toml                            |  3 +++
 ext/StridedViewsFiniteDifferencesExt.jl | 12 ++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 ext/StridedViewsFiniteDifferencesExt.jl

diff --git a/Project.toml b/Project.toml
index 68fd3cf..8d9c4a3 100644
--- a/Project.toml
+++ b/Project.toml
@@ -11,6 +11,7 @@ PrecompileTools = "aea7be01-6a6a-4083-8856-8a6e6704d82a"
 AMDGPU = "21141c5a-9bdb-4563-92ae-f87d6854732e"
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
 CUDACore = "bd0ed864-bdfe-4181-a5ed-ce625a5fdea2"
+FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
 JLArrays = "27aeb0d3-9eb9-45fb-866b-73c2ecf80fcb"
 Metal = "dde4c033-4e86-420c-a63e-0dd931031962"
 PtrArrays = "43287f4e-b6f4-7ad1-bb20-aadabca52c3d"
@@ -18,6 +19,7 @@ PtrArrays = "43287f4e-b6f4-7ad1-bb20-aadabca52c3d"
 [extensions]
 StridedViewsAMDGPUExt = "AMDGPU"
 StridedViewsCUDACoreExt = "CUDACore"
+StridedViewsFiniteDifferencesExt = "FiniteDifferences"
 StridedViewsJLArraysExt = "JLArrays"
 StridedViewsPtrArraysExt = "PtrArrays"
 StridedViewsAdaptExt = "Adapt"
@@ -26,6 +28,7 @@ StridedViewsAdaptExt = "Adapt"
 AMDGPU = "2"
 Adapt = "4"
 CUDACore = "6"
+FiniteDifferences = "0.12"
 JLArrays = "0.3.1"
 LinearAlgebra = "1"
 Metal = "1"
diff --git a/ext/StridedViewsFiniteDifferencesExt.jl b/ext/StridedViewsFiniteDifferencesExt.jl
new file mode 100644
index 0000000..e5a04ab
--- /dev/null
+++ b/ext/StridedViewsFiniteDifferencesExt.jl
@@ -0,0 +1,12 @@
+module StridedViewsFiniteDifferencesExt
+
+using StridedViews: StridedView
+using FiniteDifferences
+
+function FiniteDifferences.to_vec(x::StridedView)
+    x_vec, from_vec = FiniteDifferences.to_vec(Array(x))
+    StridedView_from_vec(x_vec) = StridedView(from_vec(x_vec))
+    return x_vec, StridedView_from_vec
+end
+
+end