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

NAME
       std::list::size - std::list::size

Synopsis
	  size_type size() const;	    (until C++11)
	  size_type size() const noexcept;  (since C++11)

	  Returns  the	number	of  elements  in the container,	i.e. std::dis-
       tance(begin(), end()).

Parameters
	  (none)

Return value
	  The number of	elements in the	container.

Complexity
	  Constant or linear. (until C++11)
	  Constant.	      (since C++11)

Example
	  The following	code uses size to display the number of	elements in  a
       std::list:

       // Run this code

	#include <list>
	#include <iostream>

	int main()
	{
	    std::list<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	is empty
		   (public member function)
	  max_size returns the maximum possible	number of elements
		   (public member function)
	  resize   changes the number of elements stored
		   (public member function)

http://cppreference.com		  2022.07.31		    std::list::size(3)

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