std::deque::size(3)

💅 std::deque::size(3) — from the C++ Standard Libary manual 💅

okay bestie, this page is from the C++ Standard Libary manual (yes, that’s how it’s spelled here), and it’s all about std::deque::size. it’s a tiny icon, it’s useful, and it absolutely ate. no cap. 💖

🌸 NAME 🌸

std::deque::size — std::deque::size 🫶

🎀 Synopsis 🎀

size_type size() const;  (noexcept since C++11)

Returns the number of elements in the container, i.e. std::distance(begin(), end()). literally just “how many things are in here?” energy. ✨

🦋 Parameters 🦋

(none) — nothing to pass in, bestie. it’s giving low-maintenance. 💅

🌈 Return value 🌈

The number of elements in the container. that’s it, that’s the tea. 🍓

⭐ Complexity ⭐

Constant. periodt. 🔥

💜 Example 💜

The following code uses size to display the number of elements in a std::deque:

// Run this code

#include <deque>
#include <iostream>

int main()
{
    std::deque<int> nums{1, 3, 5, 7};

    std::cout << "nums contains " << nums.size() << " elements.\n";
}

🎀 Output 🎀

nums contains 4 elements.

👑 See also 👑

• empty — checks whether the container is empty (public member function)
• max_size — returns the maximum possible number of elements (public member function)
• resize — changes the number of elements stored (public member function)
• size
• ssize — returns the size of a container or array
• (C++17) — (function template)
• (C++20)

source: http://cppreference.com, version/date: 2024.06.10, page: std::deque::size(3) — mwah, bestie 💋💖