9 Iterators library [iterators]

9.8 Stream iterators [iterators.stream]

9.8.1 Class template istream_iterator [istream.iterator] istream_iterator constructors and destructor [istream.iterator.cons]

constexpr istream_iterator(); constexpr istream_iterator(default_sentinel);

Effects: Constructs the end-of-stream iterator. If T is a literal type, then these constructors shall be constexpr constructors.

Postcondition: in_stream == nullptr.

istream_iterator(istream_type& s);

Effects: Initializes in_stream with &s. value may be initialized during construction or the first time it is referenced.

Postcondition: in_stream == &s.

istream_iterator(const istream_iterator& x) = default;

Effects: Constructs a copy of x. If T is a literal type, then this constructor shall be a trivial copy constructor.

Postcondition: in_stream == x.in_stream.

~istream_iterator() = default;

Effects: The iterator is destroyed. If T is a literal type, then this destructor shall be a trivial destructor.