std::experi..._view::rfind(3)

💖 NAME 💖

std::experimental::basic_string_view::rfind — and yeah, that's the name twice, because the page says it twice: std::experimental::basic_string_view::rfind. Bestie, this one lives in the C++ Standard Libary man pages and it's a (library fundamentals TS) situation the whole way through 🧚✨

✨ Synopsis ✨

constexpr size_type rfind(basic_string_view v, size_type pos = npos) const noexcept;   (1) (library fundamentals TS)
constexpr size_type rfind(CharT c, size_type pos = npos) const noexcept;               (2) (library fundamentals TS)
constexpr size_type rfind(const CharT* s, size_type pos, size_type count) const;       (3) (library fundamentals TS)
constexpr size_type rfind(const CharT* s, size_type pos = npos) const;                 (4) (library fundamentals TS)

okay so the whole point: she finds the last substring equal to the character sequence you give her. it's giving "I'll find it, but I'm starting from the back, main character energy" 💅

1. Finds the last occurrence of v in this view, starting at position pos.
2. Equivalent to rfind(basic_string_view(&c, 1), pos).
3. Equivalent to rfind(basic_string_view(s, count), pos).
4. Equivalent to rfind(basic_string_view(s), pos).

quick observation bestie: overloads (1) and (2) are the ones with const noexcept, and (3) and (4) in the synopsis do not have it. not me pointing it out, just saying 👀

🎀 Parameters 🎀

• v — the view you're searching for 🫶
• pos — the position at which to start the search
• count — length of the substring to search for
• s — pointer to a character string to search for
• ch — character to search for (the parameter list says ch, overload (2) up top says c, both are iconic, we hold space for both 🙈)

🌸 Return value 🌸

Position of the first character of the found substring, or npos if no such substring is found. npos is literally the "she's not here, babe" of return values 😭

🦋 Complexity 🦋

O(size() * v.size()) at worst. so worst case she's doing the absolute most, no cap 🔥

👑 See also 👑

• find — find characters in the view (public member function)
• find_first_of — find first occurrence of characters (public member function)
• find_last_of — find last occurrence of characters (public member function)
• find_first_not_of — find first absence of characters (public member function)
• find_last_not_of — find last absence of characters (public member function)

⭐ Category ⭐

• * Noindexed pages

okay that's the page, periodt 🎀 this gorgeous thing came from http://cppreference.com, version 2024.06.10, and yes the whole manpage is titled std::experi..._view::rfind(3) — mwah, go search something backwards bestie 💋🌈