std::istreambuf_iterator<CharT,Traits>::istreambuf_iterator

 

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迭代器库

迭代器概念
indirectly_readable (C++20) indirectly_writable (C++20) weakly_incrementable (C++20) incrementable (C++20) input_or_output_iterator (C++20) sentinel_for (C++20) sized_sentinel_for (C++20)	input_iterator (C++20) output_iterator (C++20) forward_iterator (C++20) bidirectional_iterator (C++20) random_access_iterator (C++20) contiguous_iterator (C++20)
迭代器原语
iterator_traits input_iterator_tagoutput_iterator_tagforward_iterator_tagbidirectional_iterator_tagrandom_access_iterator_tagcontiguous_iterator_tag (C++20) iterator (C++17 中弃用)	incrementable_traits (C++20) indirectly_readable_traits (C++20) iter_value_titer_difference_titer_reference_titer_rvalue_reference_titer_common_reference_t (C++20)(C++20)(C++20)(C++20)(C++20)
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间接可调用概念
indirectly_unary_invocableindirectly_regular_unary_invocable (C++20)(C++20) indirect_unary_predicate (C++20)	indirect_binary_predicate (C++20) indirect_equivalence_relation (C++20) indirect_strict_weak_order (C++20)
常用算法要求
indirectly_movable (C++20) indirectly_movable_storable (C++20) indirectly_copyable (C++20) indirectly_copyable_storable (C++20)	indirectly_swappable (C++20) indirectly_comparable (C++20) permutable (C++20) mergeable (C++20) sortable (C++20)
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indirect_result_t	projected
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reverse_iterator move_iterator (C++11) move_sentinel (C++20) common_iterator (C++20) counted_iterator (C++20) back_insert_iterator front_insert_iterator insert_iterator	make_reverse_iterator (C++14) make_move_iterator (C++11) default_sentinel_tdefault_sentinel (C++20)(C++20) unreachable_sentinel_tunreachable_sentinel (C++20)(C++20) back_inserter front_inserter inserter
流迭代器
istream_iterator ostream_iterator	istreambuf_iterator ostreambuf_iterator
迭代器定制点
ranges::iter_move (C++20)
ranges::iter_swap (C++20)
迭代器操作
advance distance prev (C++11) next (C++11)	ranges::advance (C++20) ranges::distance (C++20) ranges::prev (C++20) ranges::next (C++20)
范围访问
begincbegin (C++11)(C++14) endcend (C++11)(C++14) sizessize (C++17)(C++20)	rbegincrbegin (C++14)(C++14) rendcrend (C++14)(C++14) empty (C++17) data (C++17)

 

std::istreambuf_iterator

成员函数

istreambuf_iterator::istreambuf_iterator

istreambuf_iterator::operator*istreambuf_iterator::operator-> (C++11)(C++17 前)

istreambuf_iterator::operator++istreambuf_iterator::operator++(int)

istreambuf_iterator::equal

非成员函数

operator==operator!= (C++20 前)

 

	(1)
istreambuf_iterator() throw();			(C++11 前)
constexpr istreambuf_iterator() noexcept;			(C++11 起)
constexpr istreambuf_iterator( std::default_sentinel_t ) noexcept;		(2)	(C++20 起)
		(3)
istreambuf_iterator( std::basic_istream<CharT,Traits>& is ) throw();				(C++11 前)
istreambuf_iterator( std::basic_istream<CharT,Traits>& is ) noexcept;				(C++11 起)
			(4)
istreambuf_iterator( std::basic_streambuf<CharT,Traits>* s ) throw();					(C++11 前)
istreambuf_iterator( std::basic_streambuf<CharT,Traits>* s ) noexcept;					(C++11 起)
				(5)
istreambuf_iterator( const /* proxy */& p ) throw();						(C++11 前)
istreambuf_iterator( const /* proxy */& p ) noexcept;						(C++11 起)
istreambuf_iterator( const istreambuf_iterator& ) noexcept = default;					(6)	(C++11 起)

1-2) 构造流尾迭代器。

3) 初始化迭代器并存储 is.rdbuf() 的值于数据成员。若 is.rdbuf() 为空，则构造流尾迭代器。

4) 初始化迭代器并存储 s 的值于数据成员。若 s 为空，则构造流尾迭代器。

6) 等效于以 p 所保有的 streambuf_type* 指针调用 (3) 。

6) 复制构造函数为平凡且为显式默认化。

复制构造函数被等效地隐式声明，且不保证为平凡。

(C++11 前)

参数

is	-	获得流缓冲来源的输出流
s	-	用以初始化迭代器的流缓冲
p	-	拥有实现定义代理类型的对象