* Copyright (c) 2025 Huawei Technologies Co., Ltd.
* This program is free software, you can redistribute it and/or modify it under the terms and conditions of
* CANN Open Software License Agreement Version 2.0 (the "License").
* Please refer to the License for details. You may not use this file except in compliance with the License.
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
* See LICENSE in the root of the software repository for the full text of the License.
*/
* \file tuple.h
* \brief
*/
#ifndef ATVC_TUPLE_H
#define ATVC_TUPLE_H
#include "type_list.h"
namespace ATVC {
template <typename... Ts>
struct Tuple {};
template <typename T, typename... Ts>
struct Tuple<T, Ts...> {
T head;
Tuple<Ts...> tail;
__aicore__ inline Tuple() : head(), tail() {}
};
template <>
struct Tuple<> {};
template <typename List>
struct TupleFromTypeList {};
template <typename... Ts>
struct TupleFromTypeList<TypeList<Ts...>> {
using Type = Tuple<Ts...>;
};
template <typename TupleType>
struct TupleSize {};
template <typename... Ts>
struct TupleSize<Tuple<Ts...>> {
static constexpr size_t value = sizeof...(Ts);
};
* Get the type of the Nth element in a Tuple
*/
template <std::size_t N, typename TupleType>
struct TupleElemType {};
template <typename T, typename... Ts>
struct TupleElemType<0, Tuple<T, Ts...>> {
using Type = T;
};
template <std::size_t N, typename T, typename... Ts>
struct TupleElemType<N, Tuple<T, Ts...>> {
using Type = typename TupleElemType<N - 1, Tuple<Ts...>>::Type;
};
* Get a reference to the Tuple element at a specific index
*/
template <std::size_t N, typename TupleType>
__aicore__ inline typename TupleElemType<N, TupleType>::Type& TupleElemGet(TupleType& tuple)
{
if constexpr (N == 0) {
return tuple.head;
} else {
return TupleElemGet<N - 1>(tuple.tail);
}
}
}
#endif