constexpr istream_iterator();
Effects:
Constructs the end-of-stream iterator
. If
is_trivially_default_constructible_v<T> is
true,
then this constructor is a constexpr constructor
.Postconditions: in_stream == 0. istream_iterator(istream_type& s);
Effects:
Initializes
in_stream with
addressof(s). value may be initialized during
construction or the first time it is referenced
. Postconditions: in_stream == addressof(s). istream_iterator(const istream_iterator& x) = default;
Effects:
Constructs a copy of
x. If
is_trivially_copy_constructible_v<T> is
true,
then this constructor is a trivial copy constructor
.Postconditions: in_stream == x.in_stream. ~istream_iterator() = default;
Effects:
The iterator is destroyed
. If
is_trivially_destructible_v<T> is
true,
then this destructor is a trivial destructor
.