std::array::max_size

constexpr size_type max_size();

constexpr size_type max_size() const;

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.

Parameters

(none).

Return value

Maximum number of elements.

Exceptions

Complexity

Constant.

Notes

Because each std::array<T, N> is a fixed-size container, the value returned by max_size equals N (which is also the value returned by size).

Example

#include <iostream>
#include <array>
 
int main()
{
    std::array<char, 10> s;
    std::cout << "Maximum size of a 'array' is " << s.max_size() << "\n";
}

Maximum size of a 'array' is 10

See also