BLT/include/blt/meta/iterator.h

45 lines
1.7 KiB
C++

#pragma once
/*
* Copyright (C) 2024 Brett Terpstra
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef BLT_META_ITERATOR_H
#define BLT_META_ITERATOR_H
#include <type_traits>
#include <iterator>
namespace blt::meta
{
template<typename Iter>
constexpr bool is_input_iterator = std::is_same_v<typename std::iterator_traits<Iter>::iterator_cateogry, std::input_iterator_tag>;
template<typename Iter>
constexpr bool is_forward_iterator = std::is_same_v<typename std::iterator_traits<Iter>::iterator_cateogry, std::forward_iterator_tag>;
template<typename Iter>
constexpr bool is_bidirectional_iterator = std::is_same_v<typename std::iterator_traits<Iter>::iterator_cateogry, std::bidirectional_iterator_tag>;
template<typename Iter>
constexpr bool is_random_access_iterator = std::is_same_v<typename std::iterator_traits<Iter>::iterator_cateogry, std::random_access_iterator_tag>;
template<typename Iter>
constexpr bool is_bidirectional_or_better = is_bidirectional_iterator<Iter> || is_random_access_iterator<Iter>;
}
#endif //BLT_META_ITERATOR_H