public member function
<array>

std::array::max_size

constexpr size_type max_size() noexcept;
Return maximum size
Returns the maximum number of elements that the array container can hold.

The max_size of an array object, just like its size, is always equal to the second template parameter used to instantiate the array template class.

Parameters

none

Return Value

The maximum number of elements the object can hold as content.
This is a constexpr.

Member type size_type is an alias of the unsigned integral type size_t.

Example

1
2
3
4
5
6
7
8
9
10
11
12
// array::max_size
#include <iostream>
#include <array>

int main ()
{
  std::array<int,10> myints;
  std::cout << "size of myints: " << myints.size() << '\n';
  std::cout << "max_size of myints: " << myints.max_size() << '\n';

  return 0;
}


Output:
size of myints: 10
max_size of myints: 10
size and max_size of an array object always match.

Complexity

Constant.

Iterator validity

No changes.

Data races

The container is accessed.
No contained elements are accessed: concurrently accessing or modifying them is safe.

Exception safety

No-throw guarantee: this member function never throws exceptions.

See also

  • 997351548 2018-02-20
  • 903691547 2018-02-20
  • 9127171546 2018-02-20
  • 2234751545 2018-02-20
  • 1685381544 2018-02-20
  • 911091543 2018-02-20
  • 9281021542 2018-02-20
  • 632231541 2018-02-20
  • 9751491540 2018-02-20
  • 8333621539 2018-02-20
  • 995001538 2018-02-20
  • 6477441537 2018-02-20
  • 511981536 2018-02-19
  • 2072881535 2018-02-19
  • 6024461534 2018-02-19
  • 7594061533 2018-02-19
  • 9311341532 2018-02-19
  • 4928331531 2018-02-19
  • 38561530 2018-02-19
  • 7776611529 2018-02-19