67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
#pragma once
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/*
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* Copyright (C) 2024 Brett Terpstra
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef BLT_GP_UTIL_META_H
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#define BLT_GP_UTIL_META_H
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#include <type_traits>
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namespace blt::gp::detail
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{
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template <typename T>
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using remove_cv_ref = std::remove_cv_t<std::remove_reference_t<T>>;
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template <typename...>
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struct first_arg;
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template <typename First, typename... Args>
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struct first_arg<First, Args...>
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{
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using type = First;
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};
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template <>
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struct first_arg<>
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{
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using type = void;
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};
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template <bool b, typename... types>
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struct is_same;
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template <typename... types>
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struct is_same<true, types...> : std::false_type
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{
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};
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template <typename... types>
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struct is_same<false, types...> : std::is_same<types...>
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{
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};
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template <typename... types>
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constexpr bool is_same_v = is_same<sizeof...(types) == 0, types...>::value;
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struct empty_t
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{
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};
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}
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#endif //BLT_GP_UTIL_META_H
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