C++ iterate by chunk

EnumByChunk.h

#pragma once

namespace utils
{
    template<class T>
    void enumByChunk(const typename T::const_iterator& cbegin, const typename T::const_iterator& cend, const size_t chunkSize,
        const function<void(const typename T::const_iterator& sub_begin, const typename T::const_iterator& sub_end)>& func)
    {
        auto it = cbegin;
        while (it < cend)
        {
            auto next = (size_t)std::distance(it, cend) >= chunkSize ? it + chunkSize : cend;
            func(it, next);
            it = next;
        }
    }
}