C++: What is std::ranges::to from C++23?

1#include <ranges>
2
3std::vector<int> source = {1, 2, 3, 4, 5};
4
5// To std::set
6auto s = source | std::ranges::to<std::set>();
7
8// To std::map with transform
9auto m = source
10    | std::views::transform([](int x) {
11        return std::pair(x, x * x);
12    })
13    | std::ranges::to<std::map>();
14
15// To std::string
16std::string str = source
17    | std::views::transform([](int x) { return char(x + '0'); })
18    | std::ranges::to<std::string>();
19
20// To std::deque
21auto dq = source | std::ranges::to<std::deque<int>>();
22
23// To std::vector with allocator
24auto vec = source
25    | std::ranges::to<std::vector<int, std::allocator<int>>>();
26
27// Pipeline style
28auto result = std::views::iota(1, 6)
29    | std::views::filter([](int n) { return n % 2 == 0; })
30    | std::ranges::to<std::vector>();
31// result = {2, 4, 6}