std::ranges...::operator*(3)

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

💅 std::ranges::transform_view::iterator::operator* 💅

okay bestie, welcome to the C++ Standard Libary manual, page std::ranges...::operator*(3) — yes, that's the manual name folded in near the top instead of doing the whole header-line copy-paste thing. This one is so niche and so C++20. 🦋

✨ NAME ✨

std::ranges::transform_view::iterator::operator* - std::ranges::transform_view::iterator::operator*

🌸 SYNOPSIS 🌸

constexpr decltype(auto) operator*() const;  (since C++20)

Returns the transformed element. periodt. ✨

Effectively returns std::invoke(*parent_->fun_, *current_), where *parent_->fun_ is the transformation function stored in the parent transform_view, and current_ is the underlying iterator into V.

🎀 PARAMETERS 🎀

(none) — literally zero parameters, bestie. 🫶

💖 RETURN VALUE 💖

The transformed element. That's the whole vibe. 👑

🔥 NOTES 🔥

  • operator-> is not provided. Not me looking for it 🙈
  • The behavior is undefined if the pointer to parent transform_view is null (e.g. if *this is default constructed).
  • If *current_ is a prvalue, its lifetime ends before this function returns. If the transformation function returns a reference or pointer to it, the result would dangle. 💀
undefined behavior alert: that's the scary one, no cap. 😭

🦋 EXAMPLE 🦋

This section is incomplete. 😭

Reason: no example.

🍓 CATEGORY 🍓

  • Todo no example

💌 source: http://cppreference.com · version/date: 2024.06.10 · page: std::ranges...::operator*(3) — bye bestie, go transform something cute 🌈💜

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