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# std::istreambuf_iterator::istreambuf_iterator

From cppreference.com
< cpp‎ | iterator‎ | istreambuf iterator

constexpr istreambuf_iterator(); | (1) |
istreambuf_iterator( std::basic_istream<CharT,Traits>& is ); | (2) |
istreambuf_iterator( std::basic_streambuf<CharT,Traits>* s ); | (3) |
istreambuf_iterator(const istreambuf_iterator&) noexcept = default; | (4) | (since C++11)

1) Constructs the end-of-stream iterator.
2) Initializes the iterator and stores the address of is.rdbuf() in a data member. If is.rdbuf() is null, then end-of-stream iterator is constructed.
3) Initializes the iterator and stores the address of `s` in a data member.
4) Default copy constructor

### [edit] Parameters

is | - | stream to obtain the stream buffer from
s | - | stream buffer to initialize the iterator with

### [edit] Exceptions

1-4)
`noexcept` specification:
noexcept
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Category:

- unconditionally noexcept