ranges/asrvaluechunk.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{"tic", "tac", "toe", "47", "11"};
  std::println("coll: {}\n", coll);

  auto sameSize = [] (auto s1, auto s2) { return s1.size() == s2.size(); };
  auto vec = coll | std::views::as_rvalue
                  | std::views::chunk_by(sameSize)
                  | std::ranges::to<std::vector>();
  std::println("coll: {}", coll);
  std::println("vec:  {}\n", vec);
}