//********************************************************
// The following code example is taken from the book
//  C++23 - The Complete Guide
//  by Nicolai M. Josuttis (www.josuttis.com)
//  http://www.cppstd23.com
//
// The code is licensed under a
//  Creative Commons Attribution 4.0 International License
//  http://creativecommons.org/licenses/by/4.0/
//********************************************************


#include <print>
#include <string>
#include <list>
#include <ranges>

int main()
{
  std::list coll{1, 2, 3, 4};

  // initialize views:
  auto v1 = coll | std::views::slide(3);
  auto v2 = coll | std::views::slide(4);

  // apply views:
  std::println("coll:       {} =>", coll);
  std::println("  slide(3): {}", v1);
  std::println("  slide(4): {}\n", v2);

  // modify underlying range:
  coll.push_back(5);

  // apply views again:
  std::println("modified:   {} =>", coll);
  std::println("  slide(3): {}", v1);
  std::println("  slide(4): {}\n", v2);

  // create new views and apply them:
  auto coll2 = coll;
  auto v3 = coll | std::views::slide(3);
  auto v4 = coll | std::views::slide(4);
  std::println("new views:  {} =>", coll);
  std::println("  slide(3): {}", v3);
  std::println("  slide(4): {}\n", v4);
}