Namespaces
Variants
Views
Actions

std::forward_list::max_size

From cppreference.com
< cpp‎ | container‎ | forward list
Revision as of 21:03, 2 November 2012 by P12bot (Talk | contribs)

size_type max_size() const;
(since C++11)

Returns the maximum number of elements the container is able to hold due to system or library implementation limitations, i.e. std::distance(begin(), end()) for the largest container.

Contents

Parameters

(none)

Return value

Maximum number of elements.

Exceptions

noexcept specification:  
noexcept
  

Complexity

Constant.

Notes

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

Example

#include <iostream>
#include <forward_list>
 
int main()
{
    std::forward_list<char> s;
    std::cout << "Maximum size of a 'forward_list' is " << s.max_size() << "\n";
}

Possible output:

Maximum size of a 'forward_list' is 18446744073709551615