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std::ranges..._view::base(3)   C++ Standard Libary  std::ranges..._view::base(3)

NAME
     std::ranges::drop_while_view::base - std::ranges::drop_while_view::base

Synopsis
	constexpr  V  base()  const&  requires	std::copy_constructible<V>;  (1)
     (since C++20)
	constexpr  V  base()   &&;					     (2)
     (since C++20)

	Returns a copy of the underlying view.

	1) Copy constructs the result from the underlying view.
	2) Move constructs the result from the underlying view.

Parameters
	(none)

Return value
	A copy of the underlying view.

Example
     // Run this code

      #include <algorithm>
      #include <array>
      #include <iostream>
      #include <ranges>

      void print(auto first, auto last)
      {
	  for (; first != last; ++first)
	      std::cout << *first << ' ';
	  std::cout << '\n';
      }

      int main()
      {
	  std::array data{1, 2, 3, 4, 5};
	  print(data.cbegin(), data.cend());

	  auto func = [](int x) { return x < 3; };
	  auto view = std::ranges::drop_while_view{data, func};
	  print(view.begin(), view.end());

	  auto base = view.base(); // `base` refers to the `data`
	  std::ranges::reverse(base); //< changes `data` indirectly
	  print(data.cbegin(), data.cend());
      }

Output:
      1 2 3 4 5
      3 4 5
      5 4 3 2 1

http://cppreference.com 	   2024.06.10	    std::ranges..._view::base(3)
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