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std::flat_set::replace(3)      C++ Standard Libary     std::flat_set::replace(3)

NAME
     std::flat_set::replace - std::flat_set::replace

Synopsis
	void replace( container_type&& cont );	(since C++23)

	Replaces    the   underlying   container   c.	Equivalent   to:   c   =
     std::move(cont);.

	The elements of cont must be sorted with respect to  compare,  and  cont
     must not
	contain equal elements. Otherwise, the behavior is undefined.

Parameters
	cont  -  a  sorted container of type KeyContainer, the contents of which
     will be moved
	       into *this

Return value
	(none)

Complexity
	Equals to complexity of std::move applied to adapted container.

Example
     // Run this code

      #include <algorithm>
      #include <cassert>
      #include <flat_set>
      #include <print>
      #include <vector>

      int main()
      {
	  std::vector<int> keys{1, 2, 3};
	  assert(std::ranges::is_sorted(keys));

	  std::flat_set<int> set;
	  assert(set.empty());

	  set.replace(keys);
	  assert(set.size() == 3);
	  assert(keys.empty());

	  std::println("{}", set); // set.keys()
      }

Output:
      [1, 2, 3]

See also
	extract extracts the underlying container
		(public member function)

http://cppreference.com 	   2024.06.10	       std::flat_set::replace(3)
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