reverseList.hpp

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// Copyright (c) 2020-2025 Cody R. Drisko. All rights reserved.
// Licensed under the MIT License. See the LICENSE file in the project root for more information.
//
// Name: reverseList.hpp
// Author: crdrisko
// Date: 01/10/2021-08:41:25
// Description: A metafunction for reversing a compile-time list
 
#ifndef DRYCHEM_COMMON_UTILITIES_INCLUDE_COMMON_UTILS_META_ALGORITHMS_REVERSELIST_HPP
#define DRYCHEM_COMMON_UTILITIES_INCLUDE_COMMON_UTILS_META_ALGORITHMS_REVERSELIST_HPP
 
#include "common-utils/meta/algorithms/basicAlgorithms/frontList.hpp"
#include "common-utils/meta/algorithms/basicAlgorithms/isEmptyList.hpp"
#include "common-utils/meta/algorithms/basicAlgorithms/popFrontList.hpp"
#include "common-utils/meta/algorithms/basicAlgorithms/pushBackList.hpp"
 
namespace CppUtils::Meta
{
    template<typename List, bool Empty = is_empty_list_v<List>>
    struct reverse_list;

    template<typename List>
    using reverse_list_t = typename reverse_list<List>::type;

    template<typename List>
    struct reverse_list<List, false> : public push_back_list<reverse_list_t<pop_front_list_t<List>>, front_list_t<List>>
    {
    };

    template<typename List>
    struct reverse_list<List, true>
    {
        using type = List;
    };
}   // namespace CppUtils::Meta
 
#endif