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

NAME
     std::flat_set::size - std::flat_set::size

Synopsis
	size_type size() const noexcept;  (since C++23)

	Returns  the  number of elements in the container adaptor. Equivalent to
     return
	c.size().

Parameters
	(none)

Return value
	The number of elements in the container adaptor.

Complexity
	Constant.

Example
	The following code uses size to display the number of elements in a
	std::flat_set<int>:

     // Run this code

      #include <iostream>
      #include <flat_set>

      int main()
      {
	  std::flat_set<int> nums{1, 3, 5, 7};

	  std::cout << "nums contains " << nums.size() << " elements.\n";
      }

Output:
      nums contains 4 elements.

See also
	empty	 checks whether the container adaptor is empty
		 (public member function)
	size
	ssize	 returns the size of a container or array
	(C++17)  (function template)
	(C++20)
	max_size returns the maximum possible number of elements
		 (public member function)

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