Ranges.hpp

Go to the documentation of this file.

#pragma once
#include <Core/Core.hpp>
#include <ranges>
namespace Foundation::Bits
{
    using namespace Core;
    namespace Ranges
    {
        using namespace std::ranges;
        template <typename Range>
        struct ContainedBy
        {
            Range const& range;
            ContainedBy(Range const& range) : range(range) {}
            constexpr bool operator()(auto&& value) const
            {
                return std::ranges::find(range, value) != std::ranges::end(range);
            }
        };
        template <typename T>
        constexpr Optional<range_value_t<T>> FirstOf(T&& range)
        {
            if (auto it = std::ranges::begin(range); it != std::ranges::end(range))
                return *it;
            return {};
        }
    } // namespace Ranges
    namespace Views
    {
        using namespace std::views;
    } // namespace Views
} // namespace Foundation::Bits