ranges.hpp

// Copyright Take Vos 2020-2021.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
 
#pragma once
 
#include <ranges>
#include <algorithm>
#include <concepts>
#include <string>
#include <string_view>
#include <type_traits>
#include <vector>
 
namespace hi::inline v1 {
 
template<typename View>
[[nodiscard]] std::vector<typename View::value_type> make_vector(View const &view)
{
    auto r = std::vector<View::value_type>{};
    auto first = begin(view);
    auto last = end(view);
    r.reserve(std::distance(first, last));
    std::copy(first, last, std::back_inserter(r));
    return r;
}
 
template<std::ranges::sized_range View>
[[nodiscard]] std::vector<typename View::value_type> make_vector(View &&view) noexcept
{
    auto r = std::vector<View::value_type>{};
    auto first = begin(view);
    auto last = end(view);
    r.reserve(std::distance(first, last));
    std::ranges::copy(first, last, std::back_inserter(r));
    return r;
}
 
template<typename View>
[[nodiscard]] auto make_vector(View &&view)
{
    using std::begin;
    using std::end;
 
    auto r = std::vector<typename View::value_type>{};
    for (auto it = begin(view); it != end(view); ++it) {
        r.push_back(*it);
    }
    //auto first = begin(view);
    //auto last = end(view);
    //std::ranges::copy(first, last, std::back_inserter(r));
    return r;
}
 
} // namespace hi::inline v1