std::istreambuf_iterator::operator++, operator++(int) - cppreference.com

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# std::istreambuf_iterator::operator++, operator++(int)

From cppreference.com
< cpp‎ | iterator‎ | istreambuf iterator

istreambuf_iterator& operator++(); | (1) |
/* unspecified */ operator++(int); | (2) |

Advances the iterator by calling sbuf_->sbumpc() where `sbuf_` is the stored pointer to the stream buffer.

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

### [edit] Parameters

(none)

### [edit] Return value

1) *this.
2) An unspecified struct `proxy` holding the current character obtained via operator*() for later retrieval. `proxy` is implicitly convertible to `CharT`.
`proxy` also holds the value of `sbuf_`. `istreambuf_iterator` can be constructed from `proxy`.

### [edit] Exceptions

(none)

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