gzofstream Class Reference

Gzipped file output stream class. More...

#include "zfstream.h"

Inheritance diagram for gzofstream:

Collaboration diagram for gzofstream:

Public Member Functions
	gzofstream ()
	gzofstream (const char *name, std::ios_base::openmode mode=std::ios_base::out)
	Construct stream on gzipped file to be opened. More...
	gzofstream (int fd, std::ios_base::openmode mode=std::ios_base::out)
	Construct stream on already open gzipped file. More...
void	attach (int fd, std::ios_base::openmode mode=std::ios_base::out)
	Attach to already open gzipped file. More...
void	close ()
	Close gzipped file. More...
bool	is_open ()
	Check if file is open. More...
void	open (const char *name, std::ios_base::openmode mode=std::ios_base::out)
	Open gzipped file. More...
gzfilebuf *	rdbuf () const
	Obtain underlying stream buffer. More...

Private Attributes
gzfilebuf	sb
	Underlying stream buffer. More...

Detailed Description

Gzipped file output stream class.

This class implements ofstream for gzipped files. Seeking and putback is not supported yet.

Definition at line 368 of file zfstream.h.

Constructor & Destructor Documentation

gzofstream() [1/3]

gzofstream::gzofstream

(

)

Definition at line 572 of file zfstream.cc.

References sb.

gzofstream() [2/3]

gzofstream::gzofstream ( const char *  name, std::ios_base::openmode  mode = std::ios_base::out  )

explicit

Construct stream on gzipped file to be opened.

Parameters

name	Filename.
mode	Open mode flags (forced to contain ios::out).

Definition at line 577 of file zfstream.cc.

References open(), and sb.

gzofstream() [3/3]

gzofstream::gzofstream ( int  fd, std::ios_base::openmode  mode = std::ios_base::out  )

explicit

Construct stream on already open gzipped file.

Parameters

fd	File descriptor.
mode	Open mode flags (forced to contain ios::out).

Definition at line 585 of file zfstream.cc.

References attach(), and sb.

Member Function Documentation

attach()

void gzofstream::attach	(	int	fd,
		std::ios_base::openmode	mode = std::ios_base::out
	)

Attach to already open gzipped file.

Parameters

fd	File descriptor.
mode	Open mode flags (forced to contain ios::out).

Stream will be in state good() if attach succeeded; otherwise in state fail().

Definition at line 604 of file zfstream.cc.

References gzfilebuf::attach(), and sb.

Referenced by gzofstream().

close()

void gzofstream::close

(

void

)

Close gzipped file.

Stream will be in state fail() if close failed.

Definition at line 614 of file zfstream.cc.

References gzfilebuf::close(), and sb.

Referenced by octave::load_save_system::dump_octave_core(), and octave::load_save_system::save().

is_open()

bool gzofstream::is_open ( void  )

inline

Check if file is open.

Returns

True if file is open.

Definition at line 404 of file zfstream.h.

References gzfilebuf::is_open(), and sb.

open()

void gzofstream::open	(	const char *	name,
		std::ios_base::openmode	mode = std::ios_base::out
	)

Open gzipped file.

Parameters

name	Filename.
mode	Open mode flags (forced to contain ios::out).

Stream will be in state good() if file opens successfully; otherwise in state fail(). This differs from the behavior of ofstream, which never sets the state to good() and therefore won't allow you to reuse the stream for a second file unless you manually clear() the state. The choice is a matter of convenience.

Definition at line 594 of file zfstream.cc.

References name, gzfilebuf::open(), and sb.

Referenced by gzofstream().

rdbuf()

gzfilebuf* gzofstream::rdbuf ( void  ) const

inline

Obtain underlying stream buffer.

Definition at line 396 of file zfstream.h.

References sb.

Referenced by setcompression().

Member Data Documentation

sb

gzfilebuf gzofstream::sb

private

Underlying stream buffer.

Definition at line 446 of file zfstream.h.

Referenced by gzofstream(), attach(), close(), is_open(), open(), and rdbuf().

---

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

• libinterp/corefcn/zfstream.h
• libinterp/corefcn/zfstream.cc