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std::istreambuf_iterator<CharT,Traits>::operator++, operator++(int)

From cppreference.com
 
 
Iterator library
Iterator concepts
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(C++20)
Iterator primitives
Iterator adaptors
Stream iterators
Iterator customization points
Iterator operations
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Range access
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std::istreambuf_iterator
Member functions
istreambuf_iterator::operator++istreambuf_iterator::operator++(int)
Non-member functions
 
istreambuf_iterator& operator++();
(1)
/* proxy */ 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) A proxy object holding the current character obtained via operator*() and the sbuf_ pointer. Dereferencing a proxy object with operator* yields the stored character.
The name proxy is for exposition only.

[edit] Exceptions

(none)