std::ostream_iterator<T,CharT,Traits>::ostream_iterator

 

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readable (C++20) 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) 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)
迭代器适配器
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
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ranges::iter_move (C++20)
ranges::iter_swap (C++20)
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advance distance prev (C++11) next (C++11)	ranges::advance (C++20) ranges::distance (C++20) ranges::prev (C++20) ranges::next (C++20)
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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::ostream_iterator

成员函数

ostream_iterator::ostream_iterator

ostream_iterator::~ostream_iterator

ostream_iterator::operator=

ostream_iterator::operator*

ostream_iterator::operator++ostream_iterator::operator++(int)

 

ostream_iterator(ostream_type& stream, const CharT* delim)	(1)
ostream_iterator(ostream_type& stream)	(2)

1) 以 stream 为关联流并以 delim 为分隔符构造迭代器。

2) 以 stream 为关联流并以空指针为分隔符构造迭代器。

参数=

stream	-	此迭代器所访问的输出流
delim	-	在每次输出后插入流的空终止字符串

示例

运行此代码

#include <iostream>
#include <iterator>
#include <algorithm>
int main()
{
    std::ostream_iterator<int> i1(std::cout, ", ");
    std::fill_n(i1, 5, -1);
    std::ostream_iterator<double> i2(std::cout);
    *i2++ = 3.14;
}

输出：

-1, -1, -1, -1, -1, 3.14