ranges/asrvaluemulti.cpp

The following code example is taken from the book
C++23 - The Complete Guide by Nicolai M. Josuttis, Leanpub, 2026
The code is licensed under a Creative Commons Attribution 4.0 International License.

---

// raw code

#include <print>
#include <string>
#include <vector>
#include <ranges>

int main()
{
  std::vector<std::string> coll{"Rome", "Berlin", "LA", "Kiev", "NY"};

  // copy to sub-sequences of three elements:
  auto vec1 = coll | std::views::adjacent<3>
                   | std::ranges::to<std::vector>();
  std::println("coll: {}", coll);
  std::println("vec1: {}\n", vec1);

  // move to sub-sequences of three elements:
  auto vec2 = coll | std::views::adjacent<3>
                   | std::views::as_rvalue
                   | std::ranges::to<std::vector>();
  std::println("coll: {}", coll);
  std::println("vec2: {}", vec2);
}