std::optional::~optional(3)

💅 std::optional::~optional(3) 💅

okay bestie, this is the std::optional::~optional(3) page from the C++ Standard Libary manual — yes, that's the manual name right there, folded in at the top like a lil name tag 🫶.

🎀 NAME 🎀

std::optional::~optional — the manual's description is literally just std::optional::~optional again, so it's giving "I am my own summary" energy 💅.

✨ Synopsis ✨

Here's the signature, exactly, no edits:

~optional();  (since C++17)
              (constexpr since C++20)

That's the whole synopsis, and the since C++17 / constexpr since C++20 notes are right there in it — keep those eras in mind 🎀.

💅 Notes 💅

If the object contains a value and the type T is not trivially destructible (see std::is_trivially_destructible), it destroys the contained value by calling its destructor, as if by value().T::~T().

Otherwise, it does nothing. literally nothing, iconically 😭.

If T is trivially-destructible, then this destructor is also trivial, so std::optional<T> is also trivially-destructible. slay ✨.

🫶 Defect reports 🫶

The following behavior-changing defect reports were applied retroactively to previously published C++ standards:

• DR: P2231R1
  • Applied to: C++20
  • Behavior as published: the destructor was not constexpr while non-trivial destructors can be constexpr in C++20
  • Correct behavior: made constexpr

periodt, that's the whole receipt 💅.

and that's the page! source/version: http://cppreference.com · date: 2024.06.10 — byeee, drink water and stan trivial destructors responsibly 💖🌸