isContainerAdapter.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: isContainerAdapter.hpp
// Author: crdrisko
// Date: 09/23/2020-07:42:03
// Description: A type trait for determining whether a type T meets the requirements of a container adapter
 
#ifndef DRYCHEM_COMMON_UTILITIES_INCLUDE_COMMON_UTILS_META_TRAITS_CONTAINERTRAITS_ISCONTAINERADAPTER_HPP
#define DRYCHEM_COMMON_UTILITIES_INCLUDE_COMMON_UTILS_META_TRAITS_CONTAINERTRAITS_ISCONTAINERADAPTER_HPP
 
#include <type_traits>
#include <utility>
 
namespace CppUtils::Meta
{
    template<typename T, typename = std::void_t<>>
    struct is_container_adapter : std::false_type
    {
    };

    template<typename T>
    struct is_container_adapter<T, std::void_t<typename T::container_type,
                                               typename T::value_type,
                                               typename T::size_type,
                                               typename T::reference,
                                               typename T::const_reference,
                                               decltype(std::declval<T>().empty()),
                                               decltype(std::declval<T>().size())>> : std::true_type
    {
    };

    template<typename T>
    constexpr bool is_container_adapter_v = is_container_adapter<T>::value;
}   // namespace CppUtils::Meta
 
#endif