std::back_insert_iterator<Container>::operator=

 

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indirectly_readable (C++20) indirectly_writable (C++20) weakly_incrementable (C++20) incrementable (C++20) is-integer-like is-signed-integer-like (C++20)(C++20)	sentinel_for (C++20) sized_sentinel_for (C++20) input_iterator (C++20) output_iterator (C++20) input_or_output_iterator (C++20)	forward_iterator (C++20) bidirectional_iterator (C++20) random_access_iterator (C++20) contiguous_iterator (C++20)
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input_iterator_tagoutput_iterator_tagforward_iterator_tagbidirectional_iterator_tagrandom_access_iterator_tagcontiguous_iterator_tag (C++20)	iter_value_titer_difference_titer_reference_titer_const_reference_titer_rvalue_reference_titer_common_reference_t (C++20)(C++20)(C++20)(C++23)(C++20)(C++20)	iterator (C++17 弃用) iterator_traits incrementable_traits (C++20) indirectly_readable_traits (C++20)
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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)
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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 (C++20)	projected (C++20)	projected_value_t (C++26)
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reverse_iterator make_reverse_iterator (C++14) move_iterator (C++11) make_move_iterator (C++11) default_sentinel_tdefault_sentinel (C++20)(C++20) unreachable_sentinel_tunreachable_sentinel (C++20)(C++20)	front_insert_iterator back_insert_iterator inserter insert_iterator front_inserter back_inserter move_sentinel (C++20)	common_iterator (C++20) counted_iterator (C++20) basic_const_iterator (C++23) const_iterator (C++23) const_sentinel (C++23) make_const_iterator (C++23) make_const_sentinel (C++23)
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) rbegincrbegin (C++14)(C++14)   endcend (C++11)(C++14) rendcrend (C++14)(C++14)   sizessize (C++17)(C++20) empty (C++17) data (C++17)

 

std::back_insert_iterator

成员函数

back_insert_iterator::back_insert_iterator

back_insert_iterator::operator=

back_insert_iterator::operator*

back_insert_iterator::operator++back_insert_iterator::operator++(int)

 

	(1)
back_insert_iterator<Container>&     operator=(typename Container::const_reference value );			(C++11 前)
back_insert_iterator<Container>&     operator=(consttypename Container::value_type& value );			(C++11 起) (C++20 前)
constexpr back_insert_iterator<Container>&     operator=(consttypename Container::value_type& value );			(C++20 起)
		(2)
back_insert_iterator<Container>&     operator=(typename Container::value_type&& value );				(C++11 起) (C++20 前)
constexpr back_insert_iterator<Container>&     operator=(typename Container::value_type&& value );				(C++20 起)

向容器插入给定的 value。

1) 导致 container->push_back(value)。

2) 导致 container->push_back(std::move(value))。

参数

value

-

要插入的值

返回值

*this

示例

运行此代码

#include <deque>#include <iostream>#include <iterator>   int main(){std::deque<int> q;std::back_insert_iterator<std::deque<int>> it(q);   for(int i =0; i <10;++i) it = i;// 调用 q.push_back(i)   for(auto& elem : q)std::cout<< elem <<' ';std::cout<<'\n';}

输出：

0 1 2 3 4 5 6 7 8 9