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std::flat_map::max_size(3)     C++ Standard Libary    std::flat_map::max_size(3)

NAME
     std::flat_map::max_size - std::flat_map::max_size

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

	Returns the maximum number of elements the container is able to hold due
     to system
	or library implementation limitations. Equivalent to
	std::min<size_type>(c.keys.max_size(), c.values.max_size()).

Parameters
	(none)

Return value
	Maximum number of elements.

Complexity
	Constant.

Notes
	This  value  typically reflects the theoretical limit on the size of the
     container, at
	most std::numeric_limits<difference_type>::max(). At runtime,  the  size
     of the
	container  may	be  limited  to  a  value smaller than max_size() by the
     amount of RAM
	available.

Example
     // Run this code

      #include <iostream>
      #include <flat_map>
      #include <locale>

      int main()
      {
	  std::flat_map<char, char> q;
	  std::cout.imbue(std::locale("en_US.UTF-8"));
	  std::cout << "Maximum size of a std::flat_map is " << q.max_size()  <<
     '\n';
      }

Possible output:
      Maximum size of a std::flat_map is 768,614,336,404,564,650

See also
	size returns the number of elements
	     (public member function)

http://cppreference.com 	   2024.06.10	      std::flat_map::max_size(3)
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