大家好，又见面了，我是你们的朋友全栈君。如果您正在找激活码,请点击查看最新教程,关注关注公众号 “全栈程序员社区” 获取激活教程,可能之前旧版本教程已经失效.最新Idea2022.1教程亲测有效,一键激活。

Jetbrains全家桶1年46，售后保障稳定

1.ostream_iterator

template <class _Tp,

          class _CharT = char, class _Traits = char_traits<_CharT> >

class
ostream_iterator {

public:

  typedef _CharT                         char_type;

  typedef _Traits                        traits_type;

  typedef basic_ostream<_CharT, _Traits> ostream_type;

  typedef output_iterator_tag            iterator_category;

  typedef void                           value_type;

  typedef void                           difference_type;

  typedef void                           pointer;

  typedef void                           reference;

  ostream_iterator(ostream_type&
__s) :
_M_stream(&
__s),
_M_string(0) {}

  ostream_iterator(ostream_type&
__s, const _CharT*
__c)

    :
_M_stream(&
__s),
_M_string(
__c)  {}

  ostream_iterator<_Tp>&
operator=(const _Tp&
__value) {

    *
_M_stream <<
__value;

    if (
_M_string) *
_M_stream <<
_M_string;

    return *this;

  }

  ostream_iterator<_Tp>&
operator*() { return *this; }

  ostream_iterator<_Tp>&
operator++() { return *this; }

  ostream_iterator<_Tp>&
operator++(int) { return *this; }

private:

  ostream_type*
_M_stream;

  const _CharT*
_M_string;

};

2.示例

http://www.cplusplus.com/reference/iterator/ostream_iterator/

// ostream_iterator example
#include <iostream>     // std::cout
#include <iterator>     // std::ostream_iterator
#include <vector>       // std::vector
#include <algorithm>    // std::copy

int main () {
  std::vector<int> myvector;
  for (int i=1; i<10; ++i) myvector.push_back(i*10);

  std::ostream_iterator<int> out_it (std::cout,", ");
  std::copy ( myvector.begin(), myvector.end(), out_it );
  return 0;
}

Jetbrains全家桶1年46，售后保障稳定

运行结果：