std::promise::~promise(3)

📦 version 2024.07.05, in nixpkgs unstable, opensuse-leap 16.0

🌸 NAME 🌸

std::promise::~promise — std::promise::~promise. Yep, bestie, this is the std::promise::~promise(3) page from the C++ Standard Libary manual, and it's the destructor's whole little moment. 💅

🦋 Synopsis 🦋

~promise();  (since C++11)

Okay so ~promise(); has been around since C++11, and its vibe is: Abandons the shared state: 💖

Here's the tea:

  • If the shared state is ready, it releases it.
  • If the shared state is not ready, it stores an exception object of type std::future_error with an error condition std::future_errc::broken_promise, makes the shared state ready, and releases it. 😭🔥
No cap: the "not ready" path is the dramatic one — it gets that std::future_error with std::future_errc::broken_promise, then the shared state is made ready and released. The ready path just gets released. Periodt. 💀✨

xoxo, your Unix bestie 🫶💖 — this cutie came from http://cppreference.com, version/date 2024.06.10. 🎀🌈

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