std::array::max_size

 

C++

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Technical Specifications

 

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std::array

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array::max_size

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tuple_size

tuple_element

 

constexpr size_type max_size();		(since C++11) (until C++14)
constexpr size_type max_size() const;		(since C++14)

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

noexcept specification:  

noexcept

  

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

Run this code

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

Possible output:

Maximum size of a 'array' is 10

See also

size	returns the number of elements (public member function)