std::ranges...or::iterator(3)

🌸 NAME 🌸

std::ranges::transform_view::iterator::iterator — bestie, it's the constructor of the iterator of std::ranges::transform_view::iterator. Say that five times fast, iykyk 💅

✨ Synopsis ✨

Ok so there are three of these bad boys, and they're all constexpr coded (except the first line as shown, don't come for me, I'm transcribing exactly). All of them are since C++20, slay ✨

/*iterator*/() requires
    std::default_initializable<ranges::iterator_t<Base>> = default;   (1) (since C++20)

constexpr /*iterator*/( Parent& parent, ranges::iterator_t<Base> current );   (2) (since C++20)

constexpr /*iterator*/( /*iterator*/<!Const> i )
    requires Const &&
        std::convertible_to<ranges::iterator_t<V>, ranges::iterator_t<Base>>;   (3) (since C++20)

Construct an iterator. That's literally the whole vibe 🫶

1. Default constructor. Value-initializes the underlying iterator, and initializes the pointer to parent transform_view with nullptr. Clean slate energy, no notes 💀
2. Initializes the underlying iterator with std::move(current), and the pointer to parent with std::addressof(parent). Giving it a home and a place to belong, we love to see it 🥹
3. Conversion from /*iterator*/<false> to /*iterator*/<true>. Move constructs corresponding members. Glow-up arc, main character energy 👑

🎀 Parameters 🎀

• parent — a (possibly const-qualified) std::ranges::transform_view
• current — an iterator into (possibly const-qualified) V
• i — an /*iterator*/<false>

💖 Example 💖

This section is incomplete Reason: no example

Not me showing up with zero example 😭 the page literally says it's incomplete. We'll get 'em next time, fr fr 🙈

⭐ Category ⭐

• Todo: no example

Lowkey the whole todo list is just "add an example" and honestly? Same. 🍓

And that's the whole page, bestie — no cap, every flag, every signature, every parameter, all accounted for 💜

Source: http://cppreference.com · version/date 2024.06.10 · filed under std::ranges...or::iterator(3) 🎀✨🦋