27 Iterators library [iterators]

27.6 Stream iterators [stream.iterators]

27.6.3 Class template istreambuf_­iterator [istreambuf.iterator]

27.6.3.2 istreambuf_­iterator constructors [istreambuf.iterator.cons]

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For each istreambuf_­iterator constructor in this section, an end-of-stream iterator is constructed if and only if the exposition-only member sbuf_­ is initialized with a null pointer value.

constexpr istreambuf_iterator() noexcept;

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Effects: Initializes sbuf_­ with nullptr.

istreambuf_iterator(istream_type& s) noexcept;

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Effects: Initializes sbuf_­ with s.rdbuf().

istreambuf_iterator(streambuf_type* s) noexcept;

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Effects: Initializes sbuf_­ with s.

istreambuf_iterator(const proxy& p) noexcept;

5
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Effects: Initializes sbuf_­ with p.sbuf_­.