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std::deque max_size() method

// Const version only
bool max_size() const noexcept;

Returns the maximum number of elements the deque 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.

Complexity

Constant - O(1).

Exceptions

(none)

Notes

This value typically reflects the theoretical limit on the size of the deque, 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

Main.cpp
#include <iostream>
#include <locale>
#include <deque>

int main()
{
std::deque<char> q;
std::cout.imbue(std::locale("en_US.UTF-8"));
std::cout << "Maximum size of a std::deque is " << q.max_size() << '\n';
}
Possible output
Maximum size of a std::deque is 9,223,372,036,854,775,807
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Hover to see the original license.

std::deque max_size() method

// Const version only
bool max_size() const noexcept;

Returns the maximum number of elements the deque 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.

Complexity

Constant - O(1).

Exceptions

(none)

Notes

This value typically reflects the theoretical limit on the size of the deque, 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

Main.cpp
#include <iostream>
#include <locale>
#include <deque>

int main()
{
std::deque<char> q;
std::cout.imbue(std::locale("en_US.UTF-8"));
std::cout << "Maximum size of a std::deque is " << q.max_size() << '\n';
}
Possible output
Maximum size of a std::deque is 9,223,372,036,854,775,807
This article originates from this CppReference page. It was likely altered for improvements or editors' preference. Click "Edit this page" to see all changes made to this document.
Hover to see the original license.