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std::ranges...ew::iterator(3) C++ Standard Libarystd::ranges...ew::iterator(3) NAME std::ranges::basic_istream_view::iterator - std::ranges::ba- sic_istream_view::iterator Synopsis struct /*iterator*/; (since C++20) (exposition only*) The return type of basic_istream_view::begin. /*iterator*/ is an input_iterator, but does not satisfy LegacyIn- putIterator, and thus does not work with pre-C++20 algorithms. Member types Member type Definition iterator_concept (C++20) std::input_iterator_tag difference_type (C++20) std::ptrdiff_t value_type (C++20) Val Member functions constructor constructs an iterator (C++20) (public member function) operator= the copy assignment operator is deleted; /*iterator*/ is move-only (C++20) (public member function) operator++ advances the iterator (C++20) (public member function) operator* returns the current element (C++20) (public member function) std::ranges::basic_istream_view::iterator::iterator constexpr explicit /*iterator*/( basic_istream_view& parent ); (1) (since C++20) /*iterator*/( const /*iterator*/& ) = delete; (2) (since C++20) /*iterator*/( /*iterator*/&& ) = default; (3) (since C++20) 1) Constructs an iterator from the parent basic_istream_view. 2) The copy constructor is deleted. The iterator is not copyable. 3) The move constructor is defaulted. The iterator is movable. std::ranges::basic_istream_view::iterator::operator= /*iterator*/& operator=( const /*iterator*/& ) = delete; (1) (since C++20) /*iterator*/& operator=( /*iterator*/&& ) = default; (2) (since C++20) 1) The copy assignment operator is deleted. The iterator is not copyable. 2) The move assignment operator is defaulted. The iterator is mov- able. std::ranges::basic_istream_view::iterator::operator++ /*iterator*/& operator++(); (1) (since C++20) void operator++(int); (2) (since C++20) Reads a value from the underlying stream and stores it into the par- ent basic_istream_view. Return value 1) *this 2) (none) std::ranges::basic_istream_view::iterator::operator* Val& operator*() const; (since C++20) Returns a reference to the stored value. Non-member functions operator== compares with a std::default_sentinel_t (C++20) (public member function) operator==(std::ranges::basic_istream_view::iterator, std::default_sen- tinel) friend bool operator==( const /*iterator*/& x, (since C++20) std::default_sentinel_t ); Compares an iterator with std::default_sentinel_t. Returns true if *this does not have a parent basic_istream_view, or if an error has occurred on the underlying stream. This function is not visible to ordinary unqualified or qualified lookup, and can only be found by argument-dependent lookup when std::ranges::basic_istream_view::iterator is an associated class of the arguments. Defect reports The following behavior-changing defect reports were applied retroac- tively to previously published C++ standards. DR Applied to Behavior as published Correct behavior default constructor was provided as C++20 re- moved along with the P2325R3 C++20 iterators re- quirement must be default_initializable http://cppreference.com 2024.06.10 std::ranges...ew::iterator(3)
NAME | Synopsis | Member types | Member functions | Return value | Non-member functions
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