std::ostream_iterator::operator=

 

C++

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Iterator library

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iterator_traits
input_iterator_tagoutput_iterator_tagforward_iterator_tagbidirectional_iterator_tagrandom_access_iterator_tag
iterator
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reverse_iterator move_iterator (C++11) back_insert_iterator front_insert_iterator insert_iterator	make_reverse_iterator (C++14) make_move_iterator (C++11) back_inserter front_inserter inserter
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std::ostream_iterator

Member functions

ostream_iterator::ostream_iterator

ostream_iterator::~ostream_iterator

ostream_iterator::operator=

ostream_iterator::operator*

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

 

ostream_iterator& operator=( const T& value )

Inserts value into the associated stream, then inserts the delimiter, if one was specified at construction time.

If out_stream is the private member pointer to the associated std::basic_ostream and delim is the pointer to the first character in the delimiter, the effect is equivalent to

*out_stream << value;
if(delim != 0)
    *out_stream << delim;
return *this;

Parameters

value

-

the object to insert

Return value

*this

Notes

T can be any class with a user-defined operator<<

Example

Run this code

#include <iostream>
#include <iterator>
 
int main()
{
    std::ostream_iterator<int> i1(std::cout, ", ");
    *i1++ = 1; // usual form, used by standard algorithms
    *++i1 = 2;
    i1 = 3; // neither * nor ++ are necessary
    std::ostream_iterator<double> i2(std::cout);
    i2 = 3.14;
}

Output:

1, 2, 3, 3.14