std::ostreambuf_iterator (3) Linux Manual Page

std::ostreambuf_iterator<CharT,Traits>::ostreambuf_iterator – std::ostreambuf_iterator<CharT,Traits>::ostreambuf_iterator

Synopsis

ostreambuf_iterator( streambuf_type* buffer ) throw(); (until C++11)
ostreambuf_iterator( streambuf_type* buffer ) noexcept; (1) (since C++11)
ostreambuf_iterator( ostream_type& stream ) throw(); (2) (until C++11)
ostreambuf_iterator( ostream_type& stream ) noexcept; (since C++11)
1) Constructs the iterator with the private streambuf_type* member set to buffer and the failed() bit set to false. The behavior is undefined if buffer is a null pointer.
2) Same as ostreambuf_iterator(stream.rdbuf())

Parameters

stream – the output stream whose rdbuf() will be accessed by this iterator
buffer – the output stream buffer to be accessed by this iterator

Example

// Run this code

#include <iostream>

#include <fstream>

#include <iterator>

int main()

{
    std::basic_filebuf<char> f;
    f.open("test.txt", std::ios::out);
    std::ostreambuf_iterator<char> out1(&f);
    std::ostreambuf_iterator<wchar_t> out2(std::wcout);
    *out1 = 'a';
    *out2 = L'a';
}