CSVIStreamIterator Class Reference

A single-pass row iterator on an input stream of CSV data. More...

#include <CSVStreams.hh>

Public Types
using	difference_type = std::ptrdiff_t
using	iterator_category = std::input_iterator_tag
using	pointer = const value_type *
using	reference = const value_type &
using	value_type = std::vector< std::string >

Public Member Functions
	CSVIStreamIterator ()
	Construct an end-of-stream iterator. More...
	CSVIStreamIterator (std::istream &_stream, const CSVDialect &_dialect=CSVDialect::Unix)
	Construct an iterator over _stream. More...
bool	operator!= (const CSVIStreamIterator &_other) const
	Check for iterator inequality. More...
reference	operator* () const
	Access current row. More...
CSVIStreamIterator &	operator++ ()
	Read the next row from the underlying stream. More...
CSVIStreamIterator	operator++ (int)
	Read the next row from the underlying stream. More...
pointer	operator-> () const
	Access current row. More...
bool	operator== (const CSVIStreamIterator &_other) const
	Check for iterator equality. More...

Detailed Description

A single-pass row iterator on an input stream of CSV data.

Similar to std::istream_iterator, this iterator parses a stream of CSV data, one row at a time.

See also

ParseCSVRow.

Member Typedef Documentation

difference_type

using difference_type = std::ptrdiff_t

iterator_category

using iterator_category = std::input_iterator_tag

pointer

using pointer = const value_type*

reference

using reference = const value_type&

value_type

using value_type = std::vector<std::string>

Constructor & Destructor Documentation

CSVIStreamIterator() [1/2]

CSVIStreamIterator

(

)

Construct an end-of-stream iterator.

CSVIStreamIterator() [2/2]

CSVIStreamIterator ( std::istream &  _stream, const CSVDialect &  _dialect = CSVDialect::Unix  )

explicit

Construct an iterator over _stream.

The first row will be read from the underlying stream to initialize the iterator. If there are parsing errors while reading, the underlying stream failbit will be set.

Parameters

[in]	_stream	A stream of CSV data to iterate.
[in]	_dialect	CSV data dialect. Defaults to the Unix dialect.

Member Function Documentation

operator!=()

bool operator!=

(

const CSVIStreamIterator &

_other

)

const

Check for iterator inequality.

Parameters

[in]

_other

Iterator to compare with.

Returns

true if both iterators are not equal, false otherwise.

operator*()

reference operator*

(

)

const

Access current row.

Behavior is undefined if the iterator is an end-of-stream iterator.

Returns

reference to the current row.

operator++() [1/2]

CSVIStreamIterator& operator++

(

)

Read the next row from the underlying stream.

If the read fails, the iterator becomes an end-of-stream iterator. If there are parsing errors while reading, the underlying stream failbit will be set. If the iterator already is an end-of-stream iterator, behavior is undefined.

Returns

A reference to the iterator once modified.

operator++() [2/2]

CSVIStreamIterator operator++

(

int

)

Read the next row from the underlying stream.

If the read fails, the iterator becomes an end-of-stream iterator. If there are parsing errors while reading, the underlying stream failbit will be set. If the iterator already is an end-of-stream iterator, behavior is undefined.

Returns

A copy of the iterator before modification. Note that, while an iterator copy retains its state, the underlying stream may still be advanced.

operator->()

pointer operator->

(

)

const

Access current row.

Behavior is undefined if the iterator is an end-of-stream iterator.

Returns

pointer to the current row.

operator==()

bool operator==

(

const CSVIStreamIterator &

_other

)

const

Check for iterator equality.

Parameters

[in]

_other

Iterator to compare with.

Returns

true if both iterators are end-of-stream iterators or if both iterator wrap the same stream and use the same dialect, false otherwise.

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The documentation for this class was generated from the following file:

• CSVStreams.hh