vector<int> V; // ... copy(V.begin(), V.end(), ostream_iterator<int>(cout, "\n"));Definition Defined in the standard header iterator, and in the nonstandard backward-compatibility header iterator.h. Template parameters Parameter Description Default T The type of object that will be written to the ostream. The set of value types of an ostream_iterator consists of a single type, T. Model ofOutput Iterator. Type requirementsT must be a type such that cout << T is a valid expression. Public base classes None. Members Member Where defined Description ostream_iterator(ostream&) ostream_iterator See below. ostream_iterator(ostream&, const char* s) ostream_iterator See below. ostream_iterator(const ostream_iterator&) Output Iterator The copy constructor ostream_iterator& operator=(const ostream_iterator&) Output Iterator The assignment operator ostream_iterator& operator=(const T&) Output Iterator Used to implement the Output Iterator requirement *i = t. [1] ostream_iterator& operator*() Output Iterator Used to implement the Output Iterator requirement *i = t. [1] ostream_iterator& operator++() Output Iterator Preincrement ostream_iterator& operator++(int) Output Iterator Postincrement output_iterator_tag iterator_category(const ostream_iterator&) iterator tags Returns the iterator's category. New members These members are not defined in the Output Iterator requirements, but are specific to ostream_iterator. Function Description ostream_iterator(ostream& s) Creates an ostream_iterator such that assignment of t through it is equivalent to s << t. ostream_iterator(ostream& s, const char* delim) Creates an ostream_iterator such that assignment of t through it is equivalent to s << t << delim. Notes
[1] Note how assignment through an ostream_iterator is implemented. In general, unary operator* must be defined so that it returns a proxy object, where the proxy object defines operator= to perform the output operation. In this case, for the sake of simplicity, the proxy object is the ostream_iterator itself. That is, *i simply returns i, and *i = t is equivalent to i = t. You should not, however, rely on this behavior. It is an implementation detail, and it is not guaranteed to remain the same in future versions.
See alsoistream_iterator, Output Iterator, Input Iterator. STL Main PageRetroSearch is an open source project built by @garambo | Open a GitHub Issue
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