From 5b11a9374a0f7e6fb667d63519c2714a934398b0 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Mon, 19 Jan 2026 18:40:40 +0100
Subject: Chunk tmpl deduction

---
 lib/core/c++/chunk.hpp | 20 +++++++++++++-------
 lib/sycl/c++/data.hpp  |  2 +-
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/lib/core/c++/chunk.hpp b/lib/core/c++/chunk.hpp
index 38b567b..223ceec 100644
--- a/lib/core/c++/chunk.hpp
+++ b/lib/core/c++/chunk.hpp
@@ -6,23 +6,29 @@ namespace kel {
 namespace lbm {
 namespace sch {
 namespace impl {
-template<typename Sch, uint64_t Dim, uint64_t Side, typename... AddedSides>
+template<typename Sch, uint64_t Ghost, typename LeftG, typename RightG>
 struct chunk_schema_type_helper {
-	using Schema = typename chunk_schema_type_helper<Sch,Dim-1u,Side,AddedSides...,Side>::Schema;
+	using Schema = typename chunk_schema_type_helper<Sch,Ghost,LeftG,RightG>::Schema;
 };
 
-template<typename Sch, uint64_t Side, typename... AddedSides>
-struct chunk_schema_type_helper<Sch, 0u, Side, AddedSides...> {
+template<typename Sch, uint64_t Ghost, typename Side0, typename... Sides, typename... AddedSides>
+struct chunk_schema_type_helper<Sch, Ghost, saw::tmpl_group<Side0,Sides...>, saw::tmpl_group<AddedSides...>> final {
+	using Schema = FixedArray<Sch,AddedSides...>;
+};
+
+template<typename Sch, uint64_t Ghost, uint64_t... AddedSides>
+struct chunk_schema_type_helper<Sch, Ghost, saw::tmpl_group<Side0,Sides...>, saw::tmpl_group<AddedSides...>> final {
 	using Schema = FixedArray<Sch,AddedSides...>;
 };
 }
 
 
-template<typename Schema, uint64_t Dim, uint64_t Side, uint64_t Ghost = 0u>
+template<typename Schema, uint64_t Ghost, uint64_t... Side>
 struct Chunk {
-	using InnerSchema = typename impl::chunk_schema_type_helper<Sch, Dim, Side + (2u*Ghost)>::Schema;
+	using InnerSchema = typename impl::chunk_schema_type_helper<Sch, Ghost, Side...>::Schema;
 };
 
+// Not needed for now
 template<typename ChunkSchema, uint64_t Dim>
 using SuperChunk = Array<ChunkSchema,Dim>;
 }
@@ -35,7 +41,7 @@ class data<kel::lbm::sch::Chunk<Sch,Dim,Side,Ghost>,Encode> final {
 public:
 	using Schema = kel::lbm::sch::Chunk<Sch,Dim,Side,Ghost>;
 private:
-	data<Schema::InnerSchema, Encode> 
+	data<typename Schema::InnerSchema, Encode> values_;
 public:
 };
 }
diff --git a/lib/sycl/c++/data.hpp b/lib/sycl/c++/data.hpp
index 53a35bc..bba52d6 100644
--- a/lib/sycl/c++/data.hpp
+++ b/lib/sycl/c++/data.hpp
@@ -19,7 +19,7 @@ struct struct_has_only_equal_dimension_array{};
 
 namespace saw {
 template<uint64_t... Meta, typename... Sch, string_literal... Keys, typename Encode>
-class data<schema::Struct<schema::Member<schema::FixedArray<Sch,Meta...>, Keys>...>, kel::lbm::encode::Sycl<Encode>> final {
+class data<schema::Struct<schema::Member<schema::Chunk<Sch,Ghost,Meta...>, Keys>...>, kel::lbm::encode::Sycl<Encode>> final {
 public:
 	static constexpr data<schema::FixedArray meta = {{Meta...}};
 	using StorageT = std::tuple<data<Members::Type::InnerSchema,Encode>*...>;
-- 
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