pre-p2210r2.cpp

#include <algorithm>
#include <iostream>
#include <string>
#include <string_view>
#include <ranges>

int main() {
  std::string_view str = "apple,banana,cinnamon";
  for (auto rev_item: str | std::views::reverse | std::views::split(',')) {
     static_assert( std::ranges::forward_range<decltype(rev_item)>);
     static_assert(!std::ranges::bidirectional_range<decltype(rev_item)>);  // pre-P2210R2

     auto cv = rev_item | std::views::common;
     std::string tmp{cv.begin(), cv.end()};
     std::reverse(tmp.begin(), tmp.end());
     std::cout << tmp << '\n';    
  }
}