xtd::io::stream_writer Class Reference

Inheritance diagram for xtd::io::stream_writer:

Definition

Implements a xtd::io::text_writer for writing characters to a stream.

class core_export_ stream_writer : public xtd::io::text_writer

Inheritance

xtd::io::text_writer → xtd::io::stream_writer

Header

#include <xtd/io/stream_writer>

Namespace

xtd::io

Library

xtd.core

Examples

file_info_open.cpp, file_info_open_read.cpp, file_info_open_write.cpp, network_stream.cpp, tcp_client_ip_v4.cpp, and tcp_client_ip_v6.cpp.

Public Constructors
	stream_writer (const xtd::string &path)
	Initializes a new instance of the stream_writer class for the specified file name.
	stream_writer (std::ostream &stream)
	Initializes a new instance of the stream_writer class for the specified stream.
	stream_writer (const xtd::string &path, bool append)
	Initializes a new instance of the xtd::io::stream_writer class for the specified file on the specified path, using the default encoding and buffer size. If the file exists, it can be either overwritten or appended to. If the file does not exist, this constructor creates a new file.
	stream_writer (std::ostream &stream, bool append)
	Initializes a new instance of the stream_writer class for the specified stream.

Public Properties
bool	auto_flush () const
	Gets a value indicating whether the xtd::io::stream_writer will flush its buffer to the underlying stream after every call to xtd::io::text_writer::write(char).
void	auto_flush (bool auto_flush)
	Sets a value indicating whether the xtd::io::stream_writer will flush its buffer to the underlying stream after every call to xtd::io::text_writer::write(char).
std::optional< std::reference_wrapper< std::ostream > >	base_stream () const
	Returns the underlying stream.

Public Methods
void	close () override
	Closes the stream_writer object and the underlying stream, and releases any system resources associated with the reader.
void	flush () override
	Clears all buffers for the current writer and causes any buffered data to be written to the underlying device.
void	write (const xtd::string &value) override
	Writes the specified string value to the text stream.
virtual void	write (const xtd::string &value)
	Writes the specified string value to the text stream.
void	write (bool value)
	Writes the specified bool value to the text stream.
void	write (double value)
	Writes the specified double value to the text stream.
void	write (float value)
	Writes the specified float value to the text stream.
void	write (sbyte value)
	Writes the specified sbyte value to the text stream.
void	write (int16 value)
	Writes the specified int16 value to the text stream.
void	write (int32 value)
	Writes the specified int32 value to the text stream.
void	write (int64 value)
	Writes the specified int64 value to the text stream.
void	write (xtd::byte value)
	Writes the specified xtd::byte value to the text stream.
void	write (uint16 value)
	Writes the specified uint16 value to the text stream.
void	write (uint32 value)
	Writes the specified uint32 value to the text stream.
void	write (uint64 value)
	Writes the specified uint64 value to the text stream.
template<typename value_t >
void	write (value_t value)
	Writes the specified value_t value to the text stream.
template<typename ... args_t>
void	write (const xtd::string &fmt, args_t &&... args) noexcept
	Writes the specified arguments with specified format to the text stream.

Additional Inherited Members
Public Member Functions inherited from xtd::io::text_writer
const xtd::string &	new_line () const noexcept
	Gets the line terminator string used by the current text_writer.
void	new_line (const xtd::string &new_line) noexcept
	Sets the line terminator string used by the current text_writer.
void	write (bool value)
	Writes the specified bool value to the text stream.
void	write (double value)
	Writes the specified double value to the text stream.
void	write (float value)
	Writes the specified float value to the text stream.
void	write (sbyte value)
	Writes the specified sbyte value to the text stream.
void	write (int16 value)
	Writes the specified int16 value to the text stream.
void	write (int32 value)
	Writes the specified int32 value to the text stream.
void	write (int64 value)
	Writes the specified int64 value to the text stream.
void	write (xtd::byte value)
	Writes the specified xtd::byte value to the text stream.
void	write (uint16 value)
	Writes the specified uint16 value to the text stream.
void	write (uint32 value)
	Writes the specified uint32 value to the text stream.
void	write (uint64 value)
	Writes the specified uint64 value to the text stream.
template<typename value_t >
void	write (value_t value)
	Writes the specified value_t value to the text stream.
template<typename ... args_t>
void	write (const xtd::string &fmt, args_t &&... args) noexcept
	Writes the specified arguments with specified format to the text stream.
void	write_line ()
	Writes new line to the text stream.
void	write_line (const xtd::string &value)
	Writes the specified string value and new line to the text stream.
void	write_line (bool value)
	Writes the specified bool value and new line to the text stream.
void	write_line (double value)
	Writes the specified double value and new line to the text stream.
void	write_line (float value)
	Writes the specified float value and new line to the text stream.
void	write_line (sbyte value)
	Writes the specified sbyte value and new line to the text stream.
void	write_line (int16 value)
	Writes the specified int16 value and new line to the text stream.
void	write_line (int32 value)
	Writes the specified int32 value and new line to the text stream.
void	write_line (int64 value)
	Writes the specified int64 value and new line to the text stream.
void	write_line (xtd::byte value)
	Writes the specified xtd::byte value and new line to the text stream.
void	write_line (uint16 value)
	Writes the specified uint16 value and new line to the text stream.
void	write_line (uint32 value)
	Writes the specified uint32 value and new line to the text stream.
void	write_line (uint64 value)
	Writes the specified uint64 value and new line to the text stream.
template<typename value_t >
void	write_line (value_t value)
	Writes the specified value_t value and new line to the text stream.
template<typename ... args_t>
void	write_line (const xtd::string &fmt, args_t &&... args) noexcept
	Writes the specified arguments with specified format to the text stream.
Public Member Functions inherited from xtd::object
	object ()=default
	Create a new instance of the ultimate base class object.
virtual bool	equals (const object &obj) const noexcept
	Determines whether the specified object is equal to the current object.
virtual size_t	get_hash_code () const noexcept
	Serves as a hash function for a particular type.
virtual type_object	get_type () const noexcept
	Gets the type of the current instance.
template<typename object_t >
xtd::uptr< object_t >	memberwise_clone () const
	Creates a shallow copy of the current object.
virtual xtd::string	to_string () const noexcept
	Returns a xtd::string that represents the current object.
Static Public Member Functions inherited from xtd::io::text_writer
static null_text_writer &	null () noexcept
	Provides a text_writer with no backing store that can be written to, but not read from.
static synchronized_text_writer	synchronised (text_writer &writer) noexcept
	Creates a thread-safe (synchronized) wrapper around the specified text_writer object.
Static Public Member Functions inherited from xtd::object
template<typename object_a_t , typename object_b_t >
static bool	equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are considered equal.
template<typename object_a_t , typename object_b_t >
static bool	reference_equals (const object_a_t &object_a, const object_b_t &object_b) noexcept
	Determines whether the specified object instances are the same instance.
Protected Member Functions inherited from xtd::io::text_writer
	text_writer ()=default
	Initializes a new instance of the xtd::io::text_writer class.

Constructor & Destructor Documentation

stream_writer() [1/4]

xtd::io::stream_writer::stream_writer ( const xtd::string &  path )

explicit

Initializes a new instance of the stream_writer class for the specified file name.

Parameters

path	The complete file path to be read.

Exceptions

xtd::argument_exception	path contains one or more of the invalid characters -or- The system could not retrieve the absolute path.
xtd::io::io_exception	the handle of the specified file cannot be opened

stream_writer() [2/4]

xtd::io::stream_writer::stream_writer ( std::ostream &  stream )

explicit

Initializes a new instance of the stream_writer class for the specified stream.

Parameters

stream

The stream to be read.

stream_writer() [3/4]

xtd::io::stream_writer::stream_writer	(	const xtd::string &	path,
		bool	append
	)

Initializes a new instance of the xtd::io::stream_writer class for the specified file on the specified path, using the default encoding and buffer size. If the file exists, it can be either overwritten or appended to. If the file does not exist, this constructor creates a new file.

Parameters

path	The complete file path to write to.
append	Determines whether data is to be appended to the file. If the file exists and append is false, the file is overwritten. If the file exists and append is true, the data is appended to the file. Otherwise, a new file is created.

Exceptions

xtd::argument_exception	path contains one or more of the invalid characters -or- The system could not retrieve the absolute path.
xtd::io::io_exception	the handle of the specified file cannot be opened

stream_writer() [4/4]

xtd::io::stream_writer::stream_writer	(	std::ostream &	stream,
		bool	append
	)

Initializes a new instance of the stream_writer class for the specified stream.

Parameters

stream

The stream to be read.

Member Function Documentation

auto_flush() [1/2]

bool xtd::io::stream_writer::auto_flush

(

)

const

Gets a value indicating whether the xtd::io::stream_writer will flush its buffer to the underlying stream after every call to xtd::io::text_writer::write(char).

Returns

true to force xtd::io::stream_writer to flush its buffer; otherwise, false.

Remarks

Flushing the stream will not flush its underlying encoder unless you explicitly call xtd::io::stream_writer::flush or xtd::io::stream_writer::close. Setting xtd::io::stream_writer::auto_flush to true means that data will be flushed from the buffer to the stream after each write operation, but the encoder state will not be flushed.

When xtd::io::stream_writer::auto_flush is set to false, xtd::io::stream_writer will do a limited amount of buffering, both internally and potentially in the encoder from the encoding you passed in. You can get better performance by setting AutoFlush to false, assuming that you always call xtd::io::stream_writer::close (or at least Flush) when you're done writing with a xtd::io::stream_writer.

For example, set xtd::io::stream_writer::auto_flush to true when you are writing to a device where the user expects immediate feedback. xtd::console::out is one of these cases: The xtd::io::stream_writer used internally for writing to xtd::console flushes all its internal state except the encoder state after every call to xtd::io::stream_writer::write.

For a list of common I/O tasks, see Common I/O Tasks.

auto_flush() [2/2]

void xtd::io::stream_writer::auto_flush

(

bool

auto_flush

)

Sets a value indicating whether the xtd::io::stream_writer will flush its buffer to the underlying stream after every call to xtd::io::text_writer::write(char).

Parameters

auto_flush

true to force xtd::io::stream_writer to flush its buffer; otherwise, false.

Remarks

Flushing the stream will not flush its underlying encoder unless you explicitly call xtd::io::stream_writer::flush or xtd::io::stream_writer::close. Setting xtd::io::stream_writer::auto_flush to true means that data will be flushed from the buffer to the stream after each write operation, but the encoder state will not be flushed.

When xtd::io::stream_writer::auto_flush is set to false, xtd::io::stream_writer will do a limited amount of buffering, both internally and potentially in the encoder from the encoding you passed in. You can get better performance by setting AutoFlush to false, assuming that you always call xtd::io::stream_writer::close (or at least Flush) when you're done writing with a xtd::io::stream_writer.

For example, set xtd::io::stream_writer::auto_flush to true when you are writing to a device where the user expects immediate feedback. xtd::console::out is one of these cases: The xtd::io::stream_writer used internally for writing to xtd::console flushes all its internal state except the encoder state after every call to xtd::io::stream_writer::write.

For a list of common I/O tasks, see Common I/O Tasks.

base_stream()

std::optional< std::reference_wrapper< std::ostream > > xtd::io::stream_writer::base_stream

(

)

const

Returns the underlying stream.

Returns

The underlying stream.

close()

void xtd::io::stream_writer::close ( )

overridevirtual

Closes the stream_writer object and the underlying stream, and releases any system resources associated with the reader.

Reimplemented from xtd::io::text_writer.

flush()

void xtd::io::stream_writer::flush ( )

overridevirtual

Clears all buffers for the current writer and causes any buffered data to be written to the underlying device.

Remarks

This default method does nothing, but derived classes can virtual the method to provide the appropriate functionality

Reimplemented from xtd::io::text_writer.

write() [1/15]

void xtd::io::stream_writer::write ( const xtd::string &  value )

overridevirtual

Writes the specified string value to the text stream.

Parameters

value

The value to write

Exceptions

io::io_exception

An I/O error occurs.

Reimplemented from xtd::io::text_writer.

write() [2/15]

virtual void xtd::io::text_writer::write ( const xtd::string &  value )

virtual

Writes the specified string value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

Reimplemented from xtd::io::text_writer.

write() [3/15]

void xtd::io::text_writer::write

(

bool

value

)

Writes the specified bool value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [4/15]

void xtd::io::text_writer::write

(

double

value

)

Writes the specified double value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [5/15]

void xtd::io::text_writer::write

(

float

value

)

Writes the specified float value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [6/15]

void xtd::io::text_writer::write

(

sbyte

value

)

Writes the specified sbyte value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [7/15]

void xtd::io::text_writer::write

(

int16

value

)

Writes the specified int16 value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [8/15]

void xtd::io::text_writer::write

(

int32

value

)

Writes the specified int32 value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [9/15]

void xtd::io::text_writer::write

(

int64

value

)

Writes the specified int64 value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [10/15]

void xtd::io::text_writer::write

(

xtd::byte

value

)

Writes the specified xtd::byte value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [11/15]

void xtd::io::text_writer::write

(

uint16

value

)

Writes the specified uint16 value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [12/15]

void xtd::io::text_writer::write

(

uint32

value

)

Writes the specified uint32 value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [13/15]

void xtd::io::text_writer::write

(

uint64

value

)

Writes the specified uint64 value to the text stream.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [14/15]

template<typename value_t >

void xtd::io::text_writer::write ( value_t  value )

inline

Writes the specified value_t value to the text stream.

Template Parameters

value_t

The type of value to write.

Parameters

value

The value to write.

Exceptions

io::io_exception

An I/O error occurs.

write() [15/15]

template<typename ... args_t>

void xtd::io::text_writer::write ( const xtd::string &  fmt, args_t &&...  args  )

inlinenoexcept

Writes the specified arguments with specified format to the text stream.

Parameters

format	The arguments format to write.
args	The arguments to write with format

Exceptions

io::io_exception

An I/O error occurs.

---

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

• xtd.core/include/xtd/io/stream_writer.h