is_class_template_declarable.hpp

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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2021, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2021, Knut Reinert & MPI für molekulare Genetik
// This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
// shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
 
#pragma once
 
#include <seqan3/std/type_traits>
 
#include <seqan3/core/platform.hpp>
 
namespace seqan3::detail
{
 
template <template <typename ...> typename query_t, typename ...args_t>
struct is_class_template_declarable_with :
    public std::false_type
{};
 
template <template <typename ...> typename query_t, typename ...args_t>
requires requires { typename std::type_identity<query_t<args_t...>>::type; }
struct is_class_template_declarable_with<query_t, args_t...> : public std::true_type
{};
 
template <template <typename ...> typename query_t, typename ...args_t>
inline constexpr bool is_class_template_declarable_with_v =
    is_class_template_declarable_with<query_t, args_t...>::value;
 
} // namespace seqan3::detail