1 files changed, 0 insertions, 42 deletions
diff --git a/lib/core/c++/flatten.hpp b/lib/core/c++/flatten.hpp
deleted file mode 100644
index 1609589..0000000
--- a/lib/core/c++/flatten.hpp
+++ /dev/null
@@ -1,42 +0,0 @@
-#pragma once
-
-#include <forstio/error.hpp>
-#include <forstio/codec/data.hpp>
-
-namespace kel {
-namespace lbm {
-namespace sch {
-using namespace saw::schema;
-}
-
-template<typename T, uint64_t D>
-struct flatten_index {
-public:
-	template<uint64_t i>
-	static constexpr saw::data<sch::UInt64> stride(const saw::data<sch::FixedArray<sch::UInt64,D>>& meta) {
-		if constexpr (i > 0u){
-			return stride<i-1u>(meta) * meta.at({i-1u});
-		}
-
-		return 1u;
-	}
-private:
-	/// 2,3,4 => 2,6,24
-	/// i + j * 2 + k * 3*2
-	/// 1 + 2 * 2 + 3 * 3*2 = 1+4+18 = 23
-	template<uint64_t i>
-	static void apply_i(saw::data<sch::UInt64>& flat_ind, const saw::data<sch::FixedArray<T,D>>& index, const saw::data<sch::FixedArray<T,D>>& meta){
-		if constexpr ( D > i ) {
-			flat_ind = flat_ind + index.at({i}) * stride<i>(meta);
-			apply_i<i+1u>(flat_ind,index,meta);
-		}
-	}
-public:
-	static saw::data<T> apply(const saw::data<sch::FixedArray<T,D>>& index, const saw::data<sch::FixedArray<T,D>>& meta){
-		saw::data<T> flat_ind{0u};
-		apply_i<0u>(flat_ind, index, meta);
-		return flat_ind;
-	}
-};
-}
-}