public member function
<iterator>
| initialization (1) | ostream_iterator (ostream_type& s);ostream_iterator (ostream_type& s, const char_type* delimiter); |
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| copy (3) | ostream_iterator (const ostream_iterator& x); |
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Construct ostream iterator
Constructs an ostream_iterator object:
- (1) initalization constructor
- Constructs an ostream iterator that is associated with stream s (the object does not own or copy the stream, only stores a reference).
If delimiter is specified, and is not a null pointer, it is inserted after every element is inserted in the stream.
- (2) copy constructor
- Constructs an ostream iterator, with the same ostream reference and delimiter string.
Parameters
- s
- A stream object, which is associated to the iterator.
Member type ostream_type is the type of such stream (defined as an alias of basic_ostream<charT,traits>, where charT and trais are the second and third class template parameters).
- delimiter
- C-string with a sequence of character to be inserted after every insertion.
Note that the iterator keeps a copy of the pointer passed (not the content of the C-string).
- x
- An iterator of the same ostream_iterator type, whose state is copied.
Example
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// 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;
}
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Possible output:
10, 20, 30, 40, 50, 60, 70, 80, 90,
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