std::istream_iterator::operator*, operator->

From cppreference.com
const T& operator*() const;
(1)
const T* operator->() const;
(2)

Returns a pointer or a reference to the current element.

The behavior is undefined if the iterator is end-of-stream iterator.

[edit] Parameters

(none)

[edit] Return value

A pointer or a reference to the current element.

[edit] Exceptions

(none)