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

🌸 NAME 🌸

std::ranges::enumerate_view::iterator — std::ranges::enumerate_view::iterator

okay so bestie, we're deep in the C++ Standard Libary manual, page std::ranges...ew::iterator(3), and this one is all about the iterator type for enumerate_view. slay 💅

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✨ Synopsis ✨

template< bool Const >  (since C++23)
class /* iterator */    (exposition only*)

It's the return type of enumerate_view::begin, and also of enumerate_view::end when the underlying view V is a common_range.

The type /* iterator */<true> is returned by the const-qualified overloads. The type /* iterator */<false> is returned by the non-const-qualified overloads. iykyk ✨

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🎀 Member types 🎀

• Base (private) — const V if Const is true, otherwise V. (exposition-only member type*)
• iterator_category — std::input_iterator_tag
• iterator_concept — it's giving one of these, in order:
  • std::random_access_iterator_tag, if Base models random_access_range.
  • Otherwise std::bidirectional_iterator_tag, if Base models bidirectional_range.
  • Otherwise std::forward_iterator_tag, if Base models forward_range.
  • Otherwise std::input_iterator_tag.
• difference_type — ranges::range_difference_t<Base>
• value_type — std::tuple<difference_type, ranges::range_value_t<Base>>
• reference-type (private) — std::tuple<difference_type, ranges::range_reference_t<Base>> (exposition-only member type*)

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🦋 Data members 🦋

• current_ (private) — an iterator to the current element of type ranges::iterator_t<Base> (exposition-only member object*)
• pos_ (private) — a current index of type difference_type (exposition-only member object*)

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💅 Member functions 💅

• constructor (C++23) — constructs an iterator (public member function)
• base (C++23) — returns an iterator to current element (public member function)
• index (C++23) — returns current index (public member function)
• operator* (C++23) — accesses the element (public member function)
• operator[] (C++23) — accesses an element by index (public member function)
• operator++, operator++(int), operator--, operator--(int), operator+=, operator-= (C++23) — advances or decrements the underlying iterator (public member function)

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🌈 Non-member functions 🌈

• operator==, operator<=> (C++23) — compares the underlying iterators (function)
• operator+, operator- (C++23) — performs iterator arithmetic (function)
• iter_move (C++23) — casts the result of dereferencing the underlying iterator to its associated rvalue reference type (function)

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🍓 Example 🍓

This section is incomplete. Reason: no example

not me waiting for an example like it's a text back 😭

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📚 References 📚

• C++23 standard (ISO/IEC 14882:2023):
• 26.7.23.3 Class template enumerate_view::iterator [range.enumerate.iterator]

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🧚 Category: 🧚

• Todo no example

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mwah 💋 — source: http://cppreference.com, version/date: 2024.06.10, page: std::ranges...ew::iterator(3). bye bestie 🫶